diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/IntegrationTests/CodeGenerationIntegrationTest.cs b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/IntegrationTests/CodeGenerationIntegrationTest.cs
index 7b1ff9a8bf..b93507ffb3 100644
--- a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/IntegrationTests/CodeGenerationIntegrationTest.cs
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/IntegrationTests/CodeGenerationIntegrationTest.cs
@@ -540,6 +540,7 @@ public class AllTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -559,6 +560,7 @@ public class AllTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -584,6 +586,7 @@ public class MyService<TModel>
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -620,6 +623,7 @@ public class MyModel
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -655,6 +659,7 @@ public class MyModel
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -674,6 +679,7 @@ public class MyModel
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -693,6 +699,7 @@ public class MyModel
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -712,6 +719,7 @@ public class MyModel
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -728,6 +736,7 @@ public class MyModel
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -753,6 +762,7 @@ public class InputTestTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -769,6 +779,7 @@ public class InputTestTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -792,6 +803,7 @@ public class MyApp
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -824,6 +836,7 @@ public class MyApp
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -857,6 +870,7 @@ public class MyService<TModel>
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -873,6 +887,7 @@ public class MyService<TModel>
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -895,6 +910,7 @@ public class ThisShouldBeGenerated
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -923,6 +939,7 @@ public class InputTestTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -946,6 +963,7 @@ public class DivTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -962,6 +980,7 @@ public class DivTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -985,6 +1004,7 @@ public class DivTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -1001,6 +1021,7 @@ public class DivTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -1017,6 +1038,7 @@ public class DivTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -1049,6 +1071,7 @@ public class AllTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
@@ -1065,6 +1088,7 @@ public class AllTagHelper : {typeof(TagHelper).FullName}
 
             // Assert
             AssertDocumentNodeMatchesBaseline(compiled.CodeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(compiled.CodeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(compiled.CodeDocument.GetCSharpDocument());
             AssertLinePragmas(compiled.CodeDocument, designTime: true);
             AssertSourceMappingsMatchBaseline(compiled.CodeDocument);
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/AttributeDirectiveWithViewImports_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/AttributeDirectiveWithViewImports_DesignTime.codegen.html
new file mode 100644
index 0000000000..e2017f6ce6
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/AttributeDirectiveWithViewImports_DesignTime.codegen.html
@@ -0,0 +1 @@
+                         
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/BasicComponent_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/BasicComponent_DesignTime.codegen.html
new file mode 100644
index 0000000000..e7b0219a38
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/BasicComponent_DesignTime.codegen.html
@@ -0,0 +1,9 @@
+                       
+<div class="                ">
+    Hello world
+                                  
+</div>
+
+            
+                                 
+ 
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Basic_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Basic_DesignTime.codegen.html
new file mode 100644
index 0000000000..08d042e897
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Basic_DesignTime.codegen.html
@@ -0,0 +1,8 @@
+<div class="                ">
+    Hello world
+                                  
+</div>
+   
+                    
+ 
+<p class="                         " />
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/IncompleteDirectives_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/IncompleteDirectives_DesignTime.codegen.html
new file mode 100644
index 0000000000..85fabc0abd
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/IncompleteDirectives_DesignTime.codegen.html
@@ -0,0 +1,15 @@
+                                                                                   
+
+     
+      
+      "
+
+      
+       
+
+       
+        
+                         
+
+          
+           
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InheritsViewModel_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InheritsViewModel_DesignTime.codegen.html
new file mode 100644
index 0000000000..6adf1586e1
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InheritsViewModel_DesignTime.codegen.html
@@ -0,0 +1,2 @@
+                                    
+              
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InheritsWithViewImports_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InheritsWithViewImports_DesignTime.codegen.html
new file mode 100644
index 0000000000..b1214751a9
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InheritsWithViewImports_DesignTime.codegen.html
@@ -0,0 +1,2 @@
+     
+              
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InjectWithModel_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InjectWithModel_DesignTime.codegen.html
new file mode 100644
index 0000000000..b05e435fda
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InjectWithModel_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+              
+                            
+                              
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InjectWithSemicolon_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InjectWithSemicolon_DesignTime.codegen.html
new file mode 100644
index 0000000000..0c20f0ce0c
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InjectWithSemicolon_DesignTime.codegen.html
@@ -0,0 +1,5 @@
+              
+                                
+                                 
+                                  
+                                    
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Inject_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Inject_DesignTime.codegen.html
new file mode 100644
index 0000000000..8a218bdd8d
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Inject_DesignTime.codegen.html
@@ -0,0 +1 @@
+                            
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InvalidNamespaceAtEOF_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InvalidNamespaceAtEOF_DesignTime.codegen.html
new file mode 100644
index 0000000000..c72931e132
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InvalidNamespaceAtEOF_DesignTime.codegen.html
@@ -0,0 +1 @@
+           Test.
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/MalformedPageDirective_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/MalformedPageDirective_DesignTime.codegen.html
new file mode 100644
index 0000000000..9645bac584
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/MalformedPageDirective_DesignTime.codegen.html
@@ -0,0 +1,4 @@
+      "foo
+
+<h1>About Us</h1>
+<p>We are awesome.</p>
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ModelExpressionTagHelper_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ModelExpressionTagHelper_DesignTime.codegen.html
new file mode 100644
index 0000000000..4649d9d2d6
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ModelExpressionTagHelper_DesignTime.codegen.html
@@ -0,0 +1,6 @@
+               
+
+                                           
+
+<input-test for="    " />
+<input-test for="      " />
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Model_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Model_DesignTime.codegen.html
new file mode 100644
index 0000000000..1638a82fb4
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Model_DesignTime.codegen.html
@@ -0,0 +1 @@
+                                     
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/MultipleModels_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/MultipleModels_DesignTime.codegen.html
new file mode 100644
index 0000000000..4a2f4743cf
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/MultipleModels_DesignTime.codegen.html
@@ -0,0 +1,2 @@
+                            
+                                     
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/PageWithNamespace_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/PageWithNamespace_DesignTime.codegen.html
new file mode 100644
index 0000000000..6742b0a9e3
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/PageWithNamespace_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+     
+                         
+<h1>Hi There!</h1>
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective_DesignTime.codegen.html
new file mode 100644
index 0000000000..8f9ba3e623
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPageWithNoLeadingPageDirective_DesignTime.codegen.html
@@ -0,0 +1,2 @@
+<div>Some text here.</div>
+     
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPagesWithRouteTemplate_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPagesWithRouteTemplate_DesignTime.codegen.html
new file mode 100644
index 0000000000..dbfd76ba01
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPagesWithRouteTemplate_DesignTime.codegen.html
@@ -0,0 +1,13 @@
+              
+
+               
+                                          
+
+            
+                                     
+     
+                                        
+     
+ 
+
+<h1>New Customer            </h1>
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPagesWithoutModel_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPagesWithoutModel_DesignTime.codegen.html
new file mode 100644
index 0000000000..ae827b1270
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPagesWithoutModel_DesignTime.codegen.html
@@ -0,0 +1,36 @@
+     
+
+                          
+                                          
+
+            
+                                                  
+     
+                             
+                                                         
+     
+
+                                    
+
+                         
+     
+                                        
+     
+ 
+
+<h1>New Customer</h1>
+<form method="post" class="form-horizontal">
+    <div class="text-danger"></div>
+    <div class="form-group">
+        <label class="col-md-2 control-label">     </label>
+        <div class="col-md-10">
+            <input class="form-control" />
+            <span class="text-danger"></span>
+        </div>
+    </div>
+    <div class="form-group">
+        <div class="col-md-offset-2 col-md-10">
+            <button type="submit" class="btn btn-primary">Save</button>
+        </div>
+    </div>
+</form>
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPages_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPages_DesignTime.codegen.html
new file mode 100644
index 0000000000..dc0c2ec4e1
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorPages_DesignTime.codegen.html
@@ -0,0 +1,40 @@
+     
+
+               
+                          
+                                          
+
+            
+                                     
+     
+                                                      
+         
+                                 
+                                                             
+         
+
+                                        
+     
+
+                         
+     
+                                        
+     
+ 
+
+<h1>New Customer</h1>
+<form method="post" class="form-horizontal" >
+    <div class="text-danger"></div>
+    <div class="form-group">
+        <label class="col-md-2 control-label">           </label>
+        <div class="col-md-10">
+            <input class="form-control" />
+            <span class="text-danger"></span>
+        </div>
+    </div>
+    <div class="form-group">
+        <div class="col-md-offset-2 col-md-10">
+            <button type="submit" class="btn btn-primary">Save</button>
+        </div>
+    </div>
+</form>
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Sections_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Sections_DesignTime.codegen.html
new file mode 100644
index 0000000000..849f18b015
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Sections_DesignTime.codegen.html
@@ -0,0 +1,14 @@
+               
+
+                                           
+
+   
+                                         
+ 
+
+<div>Some body</div>
+
+                   
+    <div>This is in Section 1</div>
+    <input-test for="    " />
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/UsingDirectives_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/UsingDirectives_DesignTime.codegen.html
new file mode 100644
index 0000000000..52fe51a130
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/UsingDirectives_DesignTime.codegen.html
@@ -0,0 +1,4 @@
+                            
+                         
+             
+             
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ViewComponentTagHelper_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ViewComponentTagHelper_DesignTime.codegen.html
new file mode 100644
index 0000000000..5b456be824
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ViewComponentTagHelper_DesignTime.codegen.html
@@ -0,0 +1,6 @@
+                          
+  
+                      
+ 
+
+<vc:test first-name="    " bar=" World"></vc:test>
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ViewWithNamespace_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ViewWithNamespace_DesignTime.codegen.html
new file mode 100644
index 0000000000..835b3a68ca
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ViewWithNamespace_DesignTime.codegen.html
@@ -0,0 +1,2 @@
+                         
+<h1>Hi There!</h1>
diff --git a/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/_ViewImports_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/_ViewImports_DesignTime.codegen.html
new file mode 100644
index 0000000000..262e601e9c
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Mvc.Razor.Extensions/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/_ViewImports_DesignTime.codegen.html
@@ -0,0 +1 @@
+                                  
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorCSharpLoweringPhase.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorCSharpLoweringPhase.cs
index f09c68069a..5206b7b45c 100644
--- a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorCSharpLoweringPhase.cs
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorCSharpLoweringPhase.cs
@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
-using System.Collections.Generic;
 using Microsoft.AspNetCore.Razor.Language.CodeGeneration;
 using Microsoft.AspNetCore.Razor.Language.Intermediate;
 
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorHtmlDocument.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorHtmlDocument.cs
new file mode 100644
index 0000000000..82de883267
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorHtmlDocument.cs
@@ -0,0 +1,35 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+
+namespace Microsoft.AspNetCore.Razor.Language
+{
+    internal class DefaultRazorHtmlDocument : RazorHtmlDocument
+    {
+        private readonly string _generatedHtml;
+        private readonly RazorCodeGenerationOptions _options;
+
+        public DefaultRazorHtmlDocument(
+            string generatedHtml,
+            RazorCodeGenerationOptions options)
+        {
+            if (generatedHtml == null)
+            {
+                throw new ArgumentNullException(nameof(generatedHtml));
+            }
+
+            if (options == null)
+            {
+                throw new ArgumentNullException(nameof(options));
+            }
+
+            _generatedHtml = generatedHtml;
+            _options = options;
+        }
+
+        public override string GeneratedHtml => _generatedHtml;
+
+        public override RazorCodeGenerationOptions Options => _options;
+    }
+}
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorTagHelperBinderPhase.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorTagHelperBinderPhase.cs
index e9982aa2c5..9a0f8c1bc3 100644
--- a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorTagHelperBinderPhase.cs
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/DefaultRazorTagHelperBinderPhase.cs
@@ -102,8 +102,6 @@ namespace Microsoft.AspNetCore.Razor.Language
             return string.Equals(descriptor.Name, typePattern, StringComparison.Ordinal);
         }
 
-        
-
         internal abstract class DirectiveVisitor : SyntaxWalker
         {
             public abstract HashSet<TagHelperDescriptor> Matches { get; }
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorCodeDocumentExtensions.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorCodeDocumentExtensions.cs
index 704a9da482..e968b1d6de 100644
--- a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorCodeDocumentExtensions.cs
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorCodeDocumentExtensions.cs
@@ -3,9 +3,6 @@
 
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
-using System.IO;
-using System.Linq;
 using System.Text;
 using Microsoft.AspNetCore.Razor.Language.Extensions;
 using Microsoft.AspNetCore.Razor.Language.Intermediate;
@@ -118,6 +115,25 @@ namespace Microsoft.AspNetCore.Razor.Language
             document.Items[typeof(DocumentIntermediateNode)] = documentNode;
         }
 
+        internal static RazorHtmlDocument GetHtmlDocument(this RazorCodeDocument document)
+        {
+            if (document == null)
+            {
+                throw new ArgumentNullException(nameof(document));
+            }
+
+            var razorHtmlObj = document.Items[typeof(RazorHtmlDocument)];
+            if (razorHtmlObj == null)
+            {
+                var razorHtmlDocument = RazorHtmlWriter.GetHtmlDocument(document);
+                document.Items[typeof(RazorHtmlDocument)] = razorHtmlDocument;
+
+                return razorHtmlDocument;
+            }
+
+            return (RazorHtmlDocument)razorHtmlObj;
+        }
+
         public static RazorCSharpDocument GetCSharpDocument(this RazorCodeDocument document)
         {
             if (document == null)
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorEngine.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorEngine.cs
index cb8a10389a..864c5c2da5 100644
--- a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorEngine.cs
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorEngine.cs
@@ -14,7 +14,7 @@ namespace Microsoft.AspNetCore.Razor.Language
     {
 #pragma warning disable CS0618 // Type or member is obsolete
         private static RazorEngine CreateCore(RazorConfiguration configuration, bool designTime, Action<IRazorEngineBuilder> configure)
-#pragma warning disable CS0618 // Type or member is obsolete
+#pragma warning restore CS0618 // Type or member is obsolete
         {
             if (configuration == null)
             {
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorHtmlDocument.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorHtmlDocument.cs
new file mode 100644
index 0000000000..2f14695577
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorHtmlDocument.cs
@@ -0,0 +1,29 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+
+namespace Microsoft.AspNetCore.Razor.Language
+{
+    internal abstract class RazorHtmlDocument
+    {
+        public abstract string GeneratedHtml { get; }
+
+        public abstract RazorCodeGenerationOptions Options { get; }
+
+        public static RazorHtmlDocument Create(string generatedHtml, RazorCodeGenerationOptions options)
+        {
+            if (generatedHtml == null)
+            {
+                throw new ArgumentNullException(nameof(generatedHtml));
+            }
+
+            if (options == null)
+            {
+                throw new ArgumentNullException(nameof(options));
+            }
+
+            return new DefaultRazorHtmlDocument(generatedHtml, options);
+        }
+    }
+}
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorHtmlWriter.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorHtmlWriter.cs
new file mode 100644
index 0000000000..6d29531efb
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/src/RazorHtmlWriter.cs
@@ -0,0 +1,166 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Diagnostics;
+using System.Text;
+using Microsoft.AspNetCore.Razor.Language.Syntax;
+
+namespace Microsoft.AspNetCore.Razor.Language
+{
+    // We want to generate a HTML document that contains only pure HTML.
+    // So we want replace all non-HTML content with whitespace.
+    // Ideally we should just use ClassifiedSpans to generate this document but
+    // not all characters in the document are included in the ClassifiedSpans.
+    internal class RazorHtmlWriter : SyntaxWalker
+    {
+        private bool _isHtml;
+
+        private RazorHtmlWriter(RazorSourceDocument source)
+        {
+            if (source is null)
+            {
+                throw new ArgumentNullException(nameof(source));
+            }
+
+            Source = source;
+            Builder = new StringBuilder(Source.Length);
+            _isHtml = true;
+        }
+
+        public RazorSourceDocument Source { get; }
+
+        public StringBuilder Builder { get; }
+
+        public static RazorHtmlDocument GetHtmlDocument(RazorCodeDocument codeDocument)
+        {
+            var options = codeDocument.GetCodeGenerationOptions();
+            if (options == null || !options.DesignTime)
+            {
+                // Not needed in run time. This pass generates the backing HTML document that is used to provide HTML intellisense.
+                return null;
+            }
+
+            var writer = new RazorHtmlWriter(codeDocument.Source);
+            var syntaxTree = codeDocument.GetSyntaxTree();
+
+            writer.Visit(syntaxTree.Root);
+
+            var generatedHtml = writer.Builder.ToString();
+            Debug.Assert(
+                writer.Source.Length == writer.Builder.Length,
+                $"The backing HTML document should be the same length as the original document. Expected: {writer.Source.Length} Actual: {writer.Builder.Length}");
+
+            var razorHtmlDocument = new DefaultRazorHtmlDocument(generatedHtml, options);
+            return razorHtmlDocument;
+        }
+
+        public override void VisitRazorCommentBlock(RazorCommentBlockSyntax node)
+        {
+            WriteNode(node, isHtml: false, base.VisitRazorCommentBlock);
+        }
+
+        public override void VisitRazorMetaCode(RazorMetaCodeSyntax node)
+        {
+            WriteNode(node, isHtml: false, base.VisitRazorMetaCode);
+        }
+
+        public override void VisitMarkupTransition(MarkupTransitionSyntax node)
+        {
+            WriteNode(node, isHtml: false, base.VisitMarkupTransition);
+        }
+
+        public override void VisitCSharpTransition(CSharpTransitionSyntax node)
+        {
+            WriteNode(node, isHtml: false, base.VisitCSharpTransition);
+        }
+
+        public override void VisitCSharpEphemeralTextLiteral(CSharpEphemeralTextLiteralSyntax node)
+        {
+            WriteNode(node, isHtml: false, base.VisitCSharpEphemeralTextLiteral);
+        }
+
+        public override void VisitCSharpExpressionLiteral(CSharpExpressionLiteralSyntax node)
+        {
+            WriteNode(node, isHtml: false, base.VisitCSharpExpressionLiteral);
+        }
+
+        public override void VisitCSharpStatementLiteral(CSharpStatementLiteralSyntax node)
+        {
+            WriteNode(node, isHtml: false, base.VisitCSharpStatementLiteral);
+        }
+
+        public override void VisitMarkupStartTag(MarkupStartTagSyntax node)
+        {
+            WriteNode(node, isHtml: true, base.VisitMarkupStartTag);
+        }
+
+        public override void VisitMarkupEndTag(MarkupEndTagSyntax node)
+        {
+            WriteNode(node, isHtml: true, base.VisitMarkupEndTag);
+        }
+
+        public override void VisitMarkupTagHelperStartTag(MarkupTagHelperStartTagSyntax node)
+        {
+            WriteNode(node, isHtml: true, base.VisitMarkupTagHelperStartTag);
+        }
+
+        public override void VisitMarkupTagHelperEndTag(MarkupTagHelperEndTagSyntax node)
+        {
+            WriteNode(node, isHtml: true, base.VisitMarkupTagHelperEndTag);
+        }
+
+        public override void VisitMarkupEphemeralTextLiteral(MarkupEphemeralTextLiteralSyntax node)
+        {
+            WriteNode(node, isHtml: true, base.VisitMarkupEphemeralTextLiteral);
+        }
+
+        public override void VisitMarkupTextLiteral(MarkupTextLiteralSyntax node)
+        {
+            WriteNode(node, isHtml: true, base.VisitMarkupTextLiteral);
+        }
+
+        public override void VisitUnclassifiedTextLiteral(UnclassifiedTextLiteralSyntax node)
+        {
+            WriteNode(node, isHtml: true, base.VisitUnclassifiedTextLiteral);
+        }
+
+        public override void VisitToken(SyntaxToken token)
+        {
+            base.VisitToken(token);
+            WriteToken(token);
+        }
+
+        private void WriteToken(SyntaxToken token)
+        {
+            var content = token.Content;
+            if (_isHtml)
+            {
+                // If we're in HTML context, append the content directly.
+                Builder.Append(content);
+                return;
+            }
+
+            // We're in non-HTML context. Let's replace all non-whitespace chars with a space.
+            foreach (var c in content)
+            {
+                if (char.IsWhiteSpace(c))
+                {
+                    Builder.Append(c);
+                }
+                else
+                {
+                    Builder.Append(' ');
+                }
+            }
+        }
+
+        private void WriteNode<TNode>(TNode node, bool isHtml, Action<TNode> handler) where TNode : SyntaxNode
+        {
+            var old = _isHtml;
+            _isHtml = isHtml;
+            handler(node);
+            _isHtml = old;
+        }
+    }
+}
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/IntegrationTests/CodeGenerationIntegrationTest.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/IntegrationTests/CodeGenerationIntegrationTest.cs
index 22133be03f..175c69abf6 100644
--- a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/IntegrationTests/CodeGenerationIntegrationTest.cs
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/IntegrationTests/CodeGenerationIntegrationTest.cs
@@ -1001,6 +1001,7 @@ namespace Microsoft.AspNetCore.Razor.Language.IntegrationTests
 
             // Assert
             AssertDocumentNodeMatchesBaseline(codeDocument.GetDocumentIntermediateNode());
+            AssertHtmlDocumentMatchesBaseline(codeDocument.GetHtmlDocument());
             AssertCSharpDocumentMatchesBaseline(codeDocument.GetCSharpDocument());
             AssertSourceMappingsMatchBaseline(codeDocument);
             AssertLinePragmas(codeDocument, designTime: true);
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/RazorProjectEngineTest.cs b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/RazorProjectEngineTest.cs
index 576c3cc448..c9fa4504cd 100644
--- a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/RazorProjectEngineTest.cs
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/RazorProjectEngineTest.cs
@@ -81,7 +81,7 @@ namespace Microsoft.AspNetCore.Razor.Language
                 feature => Assert.IsType<HtmlNodeOptimizationPass>(feature),
                 feature => Assert.IsType<ImplementsDirectivePass>(feature),
                 feature => Assert.IsType<InheritsDirectivePass>(feature),
-                feature => Assert.IsType<MetadataAttributePass>(feature), 
+                feature => Assert.IsType<MetadataAttributePass>(feature),
                 feature => Assert.IsType<PreallocatedTagHelperAttributeOptimizationPass>(feature));
         }
 
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/AddTagHelperDirective_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/AddTagHelperDirective_DesignTime.codegen.html
new file mode 100644
index 0000000000..0da46f2152
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/AddTagHelperDirective_DesignTime.codegen.html
@@ -0,0 +1 @@
+                               
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/AttributeDirective_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/AttributeDirective_DesignTime.codegen.html
new file mode 100644
index 0000000000..fd82d19806
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/AttributeDirective_DesignTime.codegen.html
@@ -0,0 +1,6 @@
+                                                                   
+                                                              
+                                                                             
+                                                       
+
+Hello World
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Await_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Await_DesignTime.codegen.html
new file mode 100644
index 0000000000..22593ca1ef
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Await_DesignTime.codegen.html
@@ -0,0 +1,26 @@
+            
+                                   
+     
+                     
+     
+ 
+
+<section>
+    <h1>Basic Asynchronous Expression Test</h1>
+    <p>Basic Asynchronous Expression:             </p>
+    <p>Basic Asynchronous Template:               </p>
+    <p>Basic Asynchronous Statement:                  </p>
+    <p>Basic Asynchronous Statement Nested:    <b>            </b>  </p>
+    <p>Basic Incomplete Asynchronous Statement:       </p>
+</section>
+
+<section>
+    <h1>Advanced Asynchronous Expression Test</h1>
+    <p>Advanced Asynchronous Expression:                 </p>
+    <p>Advanced Asynchronous Expression Extended:                     </p>
+    <p>Advanced Asynchronous Template:                          </p>
+    <p>Advanced Asynchronous Statement:                                           </p>
+    <p>Advanced Asynchronous Statement Extended:                         </p>
+    <p>Advanced Asynchronous Statement Nested:    <b>                            </b>  </p>
+    <p>Advanced Incomplete Asynchronous Statement:                     </p>
+</section>
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Blocks_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Blocks_DesignTime.codegen.html
new file mode 100644
index 0000000000..dc08c79219
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Blocks_DesignTime.codegen.html
@@ -0,0 +1,37 @@
+  
+              
+ 
+
+                 
+    <p>Hello from C#, #    </p>
+           
+ 
+
+              
+    <p>We wrote 10 lines!</p>
+ 
+
+            
+            
+        <p>No really, we wrote 10 lines!</p>
+              
+            
+        <p>Actually, we didn't...</p>
+              
+ 
+
+                                  
+    <p>Hello again from C#, #    </p>
+ 
+
+      
+    <p>That time, we wrote 5 lines!</p>
+                       
+    <p>Oh no! An error occurred:              </p>
+ 
+
+<p>i is now   </p>
+
+                     
+    <p>This block is locked, for your security!</p>
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CSharp7_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CSharp7_DesignTime.codegen.html
new file mode 100644
index 0000000000..a2aad32abe
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CSharp7_DesignTime.codegen.html
@@ -0,0 +1,43 @@
+<body>
+      
+                                                                                                    
+         
+                                                
+          
+
+                                                     
+
+                                  
+                                                   
+                                                           
+                                                                                             
+     
+
+                                                           
+     
+                                      
+         
+                           
+         
+     
+    <p>
+        Here's a very unique number:                                                                  
+    </p>
+
+    <div>
+                                                                
+    </div>
+
+                         
+     
+                     
+                           
+                  
+                                               
+                                
+                  
+                  
+                                        
+                  
+     
+</body>
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CSharp8_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CSharp8_DesignTime.codegen.html
new file mode 100644
index 0000000000..2e0ee4dc6e
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CSharp8_DesignTime.codegen.html
@@ -0,0 +1,67 @@
+                                 
+
+  
+                                               
+     
+                    
+     
+
+                                                   
+     
+
+     
+
+                       
+                                                           
+
+                                      
+                             
+                             
+     
+                              
+     
+ 
+
+            
+                
+
+                 
+ 
+                                   
+                                     
+                      
+  
+
+                                                
+ 
+        
+ 
+
+             
+                     
+                      
+
+            
+                 
+     
+              
+              
+     
+
+                                                     
+     
+                                                                 
+                                      
+     
+
+                                       
+
+                                          
+
+                                                          
+
+                       
+     
+                                         
+     
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CodeBlockAtEOF_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CodeBlockAtEOF_DesignTime.codegen.html
new file mode 100644
index 0000000000..136d06384a
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CodeBlockAtEOF_DesignTime.codegen.html
@@ -0,0 +1 @@
+  
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CodeBlockWithTextElement_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CodeBlockWithTextElement_DesignTime.codegen.html
new file mode 100644
index 0000000000..a6e01f1a0e
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CodeBlockWithTextElement_DesignTime.codegen.html
@@ -0,0 +1,4 @@
+  
+               <text>foo</text> 		
+              			<text>bar       </text>
+ 
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CodeBlock_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CodeBlock_DesignTime.codegen.html
new file mode 100644
index 0000000000..f857199dcf
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/CodeBlock_DesignTime.codegen.html
@@ -0,0 +1,5 @@
+  
+                                  
+                                                                    
+     
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ConditionalAttributes_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ConditionalAttributes_DesignTime.codegen.html
new file mode 100644
index 0000000000..46a4402680
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ConditionalAttributes_DesignTime.codegen.html
@@ -0,0 +1,15 @@
+  
+                  
+                    
+    <a href="Foo" />
+    <p class="    " />
+    <p class="foo     " />
+    <p class="     foo" />
+    <input type="checkbox" checked="   " />
+    <input type="checkbox" checked="foo    " />
+    <p class="                         " />
+    <a href="~/Foo" />
+    <script src="                                             " type="text/javascript"></script>
+    <script src="                                                             " type="text/javascript"></script>
+    <script src="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.16/jquery-ui.min.js" type="text/javascript"></script>
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/DesignTime_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/DesignTime_DesignTime.codegen.html
new file mode 100644
index 0000000000..be5ba4979a
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/DesignTime_DesignTime.codegen.html
@@ -0,0 +1,15 @@
+<div>
+                                           
+    <p>This is item #  </p>
+             
+</div>
+
+<p>
+               
+      <p>Bar      Biz</p> 
+</p>
+
+                 
+    <p>Foo</p>
+        
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyCodeBlock_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyCodeBlock_DesignTime.codegen.html
new file mode 100644
index 0000000000..9ebe0e3a78
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyCodeBlock_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+This is markup
+
+   
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyExplicitExpression_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyExplicitExpression_DesignTime.codegen.html
new file mode 100644
index 0000000000..9ebe0e3a78
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyExplicitExpression_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+This is markup
+
+   
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyImplicitExpressionInCode_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyImplicitExpressionInCode_DesignTime.codegen.html
new file mode 100644
index 0000000000..1568f6aa34
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyImplicitExpressionInCode_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+  
+     
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyImplicitExpression_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyImplicitExpression_DesignTime.codegen.html
new file mode 100644
index 0000000000..76ee36910b
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/EmptyImplicitExpression_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+This is markup
+
+ !
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExplicitExpressionAtEOF_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExplicitExpressionAtEOF_DesignTime.codegen.html
new file mode 100644
index 0000000000..6eaf3f7aa0
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExplicitExpressionAtEOF_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+This is markup
+
+  
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExplicitExpressionWithMarkup_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExplicitExpressionWithMarkup_DesignTime.codegen.html
new file mode 100644
index 0000000000..fc59317849
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExplicitExpressionWithMarkup_DesignTime.codegen.html
@@ -0,0 +1 @@
+<div>   </div>
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExplicitExpression_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExplicitExpression_DesignTime.codegen.html
new file mode 100644
index 0000000000..33b749a2f9
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExplicitExpression_DesignTime.codegen.html
@@ -0,0 +1 @@
+1 + 1 =       
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExpressionsInCode_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExpressionsInCode_DesignTime.codegen.html
new file mode 100644
index 0000000000..de86958add
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ExpressionsInCode_DesignTime.codegen.html
@@ -0,0 +1,16 @@
+  
+                      
+                       
+ 
+
+                  
+        
+        
+    <p>Foo is Null!</p>
+ 
+
+<p>
+                                 
+                            
+ 
+</p>
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/FunctionsBlockMinimal_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/FunctionsBlockMinimal_DesignTime.codegen.html
new file mode 100644
index 0000000000..6393f9703b
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/FunctionsBlockMinimal_DesignTime.codegen.html
@@ -0,0 +1,7 @@
+
+
+	           
+                          
+	                   
+ 
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/FunctionsBlock_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/FunctionsBlock_DesignTime.codegen.html
new file mode 100644
index 0000000000..46d84b460b
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/FunctionsBlock_DesignTime.codegen.html
@@ -0,0 +1,12 @@
+            
+
+ 
+
+            
+                                
+                             
+                            
+     
+ 
+
+Here's a random number:             
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/HiddenSpansInCode_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/HiddenSpansInCode_DesignTime.codegen.html
new file mode 100644
index 0000000000..13484a1b45
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/HiddenSpansInCode_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+  
+        
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/HtmlCommentWithQuote_Double_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/HtmlCommentWithQuote_Double_DesignTime.codegen.html
new file mode 100644
index 0000000000..21fdc4d316
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/HtmlCommentWithQuote_Double_DesignTime.codegen.html
@@ -0,0 +1,2 @@
+<!-- " -->
+<img src="~/images/submit.png" />
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/HtmlCommentWithQuote_Single_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/HtmlCommentWithQuote_Single_DesignTime.codegen.html
new file mode 100644
index 0000000000..1c32421c7e
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/HtmlCommentWithQuote_Single_DesignTime.codegen.html
@@ -0,0 +1,2 @@
+<!-- ' -->
+<img src="~/images/submit.png" />
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Implements_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Implements_DesignTime.codegen.html
new file mode 100644
index 0000000000..d0776340e1
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Implements_DesignTime.codegen.html
@@ -0,0 +1,5 @@
+                       
+
+            
+                                  
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ImplicitExpressionAtEOF_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ImplicitExpressionAtEOF_DesignTime.codegen.html
new file mode 100644
index 0000000000..f1c2edafa2
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ImplicitExpressionAtEOF_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+This is markup
+
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ImplicitExpression_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ImplicitExpression_DesignTime.codegen.html
new file mode 100644
index 0000000000..c3ca733a2b
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ImplicitExpression_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+                               
+    <p>This is item #  </p>
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/IncompleteDirectives_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/IncompleteDirectives_DesignTime.codegen.html
new file mode 100644
index 0000000000..b7d08f3856
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/IncompleteDirectives_DesignTime.codegen.html
@@ -0,0 +1,25 @@
+                                                                                   
+
+             
+              
+               
+
+                
+                 
+                  
+
+                
+                 
+                  
+
+         
+          
+
+          
+           
+
+        
+         
+
+         {
+            
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Inherits_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Inherits_DesignTime.codegen.html
new file mode 100644
index 0000000000..b60ac0100e
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Inherits_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+                               
+
+      
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InlineBlocks_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InlineBlocks_DesignTime.codegen.html
new file mode 100644
index 0000000000..3b6fa1cd06
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/InlineBlocks_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+             (string link) {
+    <a href="                                   <text>#</text>  " />
+}
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Instrumented_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Instrumented_DesignTime.codegen.html
new file mode 100644
index 0000000000..111d1f7474
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Instrumented_DesignTime.codegen.html
@@ -0,0 +1,38 @@
+  
+              
+               <p>Bar</p> 
+      Hello, World
+    <p>Hello, World</p>
+ 
+
+                 
+    <p>Hello from C#, #    </p>
+           
+ 
+
+              
+    <p>We wrote 10 lines!</p>
+ 
+
+            
+            
+        <p>No really, we wrote 10 lines!</p>
+              
+            
+        <p>Actually, we didn't...</p>
+              
+ 
+
+                                  
+    <p>Hello again from C#, #    </p>
+ 
+
+      
+    <p>That time, we wrote 5 lines!</p>
+                       
+    <p>Oh no! An error occurred:              </p>
+ 
+
+                     
+    <p>This block is locked, for your security!</p>
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/MarkupInCodeBlock_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/MarkupInCodeBlock_DesignTime.codegen.html
new file mode 100644
index 0000000000..9148ce7323
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/MarkupInCodeBlock_DesignTime.codegen.html
@@ -0,0 +1,5 @@
+  
+                                  
+        <p>Hello from C#, #               </p>
+     
+ 
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Markup_InCodeBlocks_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Markup_InCodeBlocks_DesignTime.codegen.html
new file mode 100644
index 0000000000..4b346c914a
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Markup_InCodeBlocks_DesignTime.codegen.html
@@ -0,0 +1,45 @@
+
+  
+                             
+     
+                                                   
+      
+
+                                 
+     
+        <div>            </div>
+     
+ 
+
+                         
+                                 
+
+            
+                                        
+     
+                                             
+        <div>
+            <h3>Happy birthday             !</h3>
+        </div>
+
+        <ul>
+                                                  
+         
+            <li>     Happy birthday!</li>
+         
+        </ul>
+
+                            
+         
+                   
+         
+
+        <h4>Secret message</h4>
+     
+
+                
+     
+                                        
+                                    
+     
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NestedCSharp_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NestedCSharp_DesignTime.codegen.html
new file mode 100644
index 0000000000..c1b9240ee0
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NestedCSharp_DesignTime.codegen.html
@@ -0,0 +1,8 @@
+  
+                                         
+     
+        <div>
+                             .
+        </div>
+     
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NestedCodeBlocks_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NestedCodeBlocks_DesignTime.codegen.html
new file mode 100644
index 0000000000..c56380dfcb
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NestedCodeBlocks_DesignTime.codegen.html
@@ -0,0 +1,4 @@
+          
+              
+     
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NoLinePragmas_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NoLinePragmas_DesignTime.codegen.html
new file mode 100644
index 0000000000..b7c02278c1
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NoLinePragmas_DesignTime.codegen.html
@@ -0,0 +1,38 @@
+  
+              
+ 
+
+                 
+    <p>Hello from C#, #    </p>
+           
+ 
+
+              
+    <p>We wrote 10 lines!</p>
+ 
+
+            
+            
+        <p>No really, we wrote 10 lines!</p>
+              
+            
+        <p>Actually, we didn't...</p>
+              
+ 
+
+                                  
+    <p>Hello again from C#, #    </p>
+ 
+
+      
+    <p>That time, we wrote 5 lines!</p>
+                       
+    <p>Oh no! An error occurred:              </p>
+ 
+
+                                  
+<p>i is now   </p>
+
+                     
+    <p>This block is locked, for your security!</p>
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NullConditionalExpressions_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NullConditionalExpressions_DesignTime.codegen.html
new file mode 100644
index 0000000000..7ad423b1f2
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/NullConditionalExpressions_DesignTime.codegen.html
@@ -0,0 +1,11 @@
+  
+                  
+                           
+                               
+                                              
+ 
+
+              
+                       
+                           
+                                          
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/OpenedIf_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/OpenedIf_DesignTime.codegen.html
new file mode 100644
index 0000000000..1675f64383
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/OpenedIf_DesignTime.codegen.html
@@ -0,0 +1,5 @@
+<html>
+<body>
+             
+</body>
+</html>
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ParserError_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ParserError_DesignTime.codegen.html
new file mode 100644
index 0000000000..d007646328
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/ParserError_DesignTime.codegen.html
@@ -0,0 +1,5 @@
+  
+  
+          
+          
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorComments_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorComments_DesignTime.codegen.html
new file mode 100644
index 0000000000..f851e2e597
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RazorComments_DesignTime.codegen.html
@@ -0,0 +1,18 @@
+                                    
+<p>This should           be shown</p>
+
+  
+                                       
+                                                       
+                     
+                  
+     
+ 
+
+                           
+<p>But this should show the comment syntax:     </p>
+
+         
+
+<input value="@*this razor comment is the actual value*@" type="text" />
+<input                                             type="text" />
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RemoveTagHelperDirective_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RemoveTagHelperDirective_DesignTime.codegen.html
new file mode 100644
index 0000000000..77def406f5
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/RemoveTagHelperDirective_DesignTime.codegen.html
@@ -0,0 +1 @@
+                                
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Sections_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Sections_DesignTime.codegen.html
new file mode 100644
index 0000000000..72ff37f26c
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Sections_DesignTime.codegen.html
@@ -0,0 +1,17 @@
+  
+                                        
+ 
+
+<div>This is in the Body>
+
+                   
+    <div class="some       ">This is in Section 2</div>
+ 
+
+                   
+    <div>This is in Section 1</div>
+ 
+
+                          
+                                  <span>     </span>   
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/SimpleUnspacedIf_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/SimpleUnspacedIf_DesignTime.codegen.html
new file mode 100644
index 0000000000..11a63ced54
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/SimpleUnspacedIf_DesignTime.codegen.html
@@ -0,0 +1,4 @@
+          
+ 
+	<div></div>
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/SingleLineControlFlowStatements_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/SingleLineControlFlowStatements_DesignTime.codegen.html
new file mode 100644
index 0000000000..3d06dc8b90
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/SingleLineControlFlowStatements_DesignTime.codegen.html
@@ -0,0 +1,102 @@
+<p>Before Text</p>
+
+  
+                                                                                                
+
+                
+     
+                                             
+                                                    
+                                                  
+                                                    
+            
+                                
+     
+
+                                
+                                
+            
+
+                                          
+             
+
+      
+                     
+                                
+
+                                
+                       
+
+                                                                 
+                           
+
+                
+                       
+ 
+
+            
+                       
+     
+                   
+
+                                             
+                                                    
+            
+                                               
+        
+                                    
+                                    
+                
+
+                                             
+                 
+
+          
+                         
+                                    
+
+                                    
+                           
+
+                                                                     
+                               
+
+                   
+                           
+     
+
+                         
+
+                                
+     
+                                 
+     
+
+ 
+
+                             
+      
+
+                                      
+         
+
+   
+                 
+                            
+
+                             
+                   
+
+                                                              
+                              
+                       
+
+            
+                   
+
+                            <p>Hello!</p>
+
+           
+       <p>The time is              </p>
+
+<p>After Text</p>
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/StringLiterals_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/StringLiterals_DesignTime.codegen.html
new file mode 100644
index 0000000000..b47c6a931c
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/StringLiterals_DesignTime.codegen.html
@@ -0,0 +1,237 @@
+<p>This is line 1</p>
+<p>This is line 2</p>
+<p>This is line 3</p>
+<p>This is line 4</p>
+<p>This is line 5</p>
+<p>This is line 6</p>
+<p>This is line 7</p>
+<p>This is line 8</p>
+<p>This is line 9</p>
+<p>This is line 10</p>
+<p>This is line 11</p>
+<p>This is line 12</p>
+<p>This is line 13</p>
+<p>This is line 14</p>
+<p>This is line 15</p>
+<p>This is line 16</p>
+<p>This is line 17</p>
+<p>This is line 18</p>
+<p>This is line 19</p>
+<p>This is line 20</p>
+<p>This is line 21</p>
+<p>This is line 22</p>
+<p>This is line 23</p>
+<p>This is line 24</p>
+<p>This is line 25</p>
+<p>This is line 26</p>
+<p>This is line 27</p>
+<p>This is line 28</p>
+<p>This is line 29</p>
+<p>This is line 30</p>
+<p>This is line 31</p>
+<p>This is line 32</p>
+<p>This is line 33</p>
+<p>This is line 34</p>
+<p>This is line 35</p>
+<p>This is line 36</p>
+<p>This is line 37</p>
+<p>This is line 38</p>
+<p>This is line 39</p>
+<p>This is line 40</p>
+<p>This is line 41</p>
+<p>This is line 42</p>
+<p>This is line 43</p>
+<p>This is line 44</p>
+<p>This is line 45</p>
+<p>This is line 46</p>
+<p>This is line 47</p>
+<p>This is line 48</p>
+<p>This is line 49</p>
+<p>This is line 50</p>
+<p>This is line 51</p>
+<p>This is line 52</p>
+<p>This is line 53</p>
+<p>This is line 54</p>
+<p>This is line 55</p>
+<p>This is line 56</p>
+<p>This is line 57</p>
+<p>This is line 58</p>
+<p>This is line 59</p>
+<p>This is line 60</p>
+<p>This is line 61</p>
+<p>This is line 62</p>
+<p>This is line 63</p>
+<p>This is line 64</p>
+<p>This is line 65</p>
+<p>This is line 66</p>
+<p>This is line 67</p>
+<p>This is line 68</p>
+<p>This is line 69</p>
+<p>This is line 70</p>
+<p>This is line 71</p>
+<p>This is line 72</p>
+<p>This is line 73</p>
+<p>This is line 74</p>
+<p>This is line 75</p>
+<p>This is line 76</p>
+<p>This is line 77</p>
+<p>This is line 78</p>
+<p>This is line 79</p>
+<p>This is line 80</p>
+<p>This is line 81</p>
+<p>This is line 82</p>
+<p>This is line 83</p>
+<p>This is line 84</p><br>
+
+                                
+    <p>This is line 1 nested</p>
+    <p>This is line 2 nested</p>
+    <p>This is line 3 nested</p>
+    <p>This is line 4 nested</p>
+    <p>This is line 5 nested</p>
+    <p>This is line 6 nested</p>
+    <p>This is line 7 nested</p>
+    <p>This is line 8 nested</p>
+    <p>This is line 9 nested</p>
+    <p>This is line 10 nested</p>
+    <p>This is line 11 nested</p>
+    <p>This is line 12 nested</p>
+    <p>This is line 13 nested</p>
+    <p>This is line 14 nested</p>
+    <p>This is line 15 nested</p>
+    <p>This is line 16 nested</p>
+    <p>This is line 17 nested</p>
+    <p>This is line 18 nested</p>
+    <p>This is line 19 nested</p>
+    <p>This is line 20 nested</p>
+    <p>This is line 21 nested</p>
+    <p>This is line 22 nested</p>
+    <p>This is line 23 nested</p>
+    <p>This is line 24 nested</p>
+    <p>This is line 25 nested</p>
+    <p>This is line 26 nested</p>
+    <p>This is line 27 nested</p>
+    <p>This is line 28 nested</p>
+    <p>This is line 29 nested</p>
+    <p>This is line 30 nested</p>
+    <p>This is line 31 nested</p>
+    <p>This is line 32 nested</p>
+    <p>This is line 33 nested</p>
+    <p>This is line 34 nested</p>
+    <p>This is line 35 nested</p>
+    <p>This is line 36 nested</p>
+    <p>This is line 37 nested</p>
+    <p>This is line 38 nested</p>
+    <p>This is line 39 nested</p>
+    <p>This is line 40 nested</p>
+    <p>This is line 41 nested</p>
+    <p>This is line 42 nested</p>
+    <p>This is line 43 nested</p>
+    <p>This is line 44 nested</p>
+    <p>This is line 45 nested</p>
+    <p>This is line 46 nested</p>
+    <p>This is line 47 nested</p>
+    <p>This is line 48 nested</p>
+    <p>This is line 49 nested</p>
+    <p>This is line 50 nested</p>
+    <p>This is line 51 nested</p>
+    <p>This is line 52 nested</p>
+    <p>This is line 53 nested</p>
+    <p>This is line 54 nested</p>
+    <p>This is line 55 nested</p>
+    <p>This is line 56 nested</p>
+    <p>This is line 57 nested</p>
+    <p>This is line 58 nested</p>
+    <p>This is line 59 nested</p>
+    <p>This is line 60 nested</p>
+    <p>This is line 61 nested</p>
+    <p>This is line 62 nested</p>
+    <p>This is line 63 nested</p>
+    <p>This is line 64 nested</p>
+    <p>This is line 65 nested</p>
+    <p>This is line 66 nested</p>
+    <p>This is line 67 nested</p>
+    <p>This is line 68 nested</p>
+    <p>This is line 69 nested</p>
+    <p>This is line 70 nested</p>
+    <p>This is line 71 nested</p>
+    <p>This is line 72 nested</p>
+    <p>This is line 73 nested</p>
+    <p>This is line 74 nested</p>
+    <p>This is line 75 nested</p>
+ 
+<p>This is line 1</p>
+<p>This is line 2</p>
+<p>This is line 3</p>
+<p>This is line 4</p>
+<p>This is line 5</p>
+<p>This is line 6</p>
+<p>This is line 7</p>
+<p>This is line 8</p>
+<p>This is line 9</p>
+<p>This is line 10</p>
+<p>This is line 11</p>
+<p>This is line 12</p>
+<p>This is line 13</p>
+<p>This is line 14</p>
+<p>This is line 15</p>
+<p>This is line 16</p>
+<p>This is line 17</p>
+<p>This is line 18</p>
+<p>This is line 19</p>
+<p>This is line 20</p>
+<p>This is line 21</p>
+<p>This is line 22</p>
+<p>This is line 23</p>
+<p>This is line 24</p>
+<p>This is line 25</p>
+<p>This is line 26</p>
+<p>This is line 27</p>
+<p>This is line 28</p>
+<p>This is line 29</p>
+<p>This is line 30</p>
+<p>This is line 31</p>
+<p>This is line 32</p>
+<p>This is line 33</p>
+<p>This is line 34</p>
+<p>This is line 35</p>
+<p>This is line 36</p>
+<p>This is line 37</p>
+<p>This is line 38</p>
+<p>This is line 39</p>
+<p>This is line 40</p>
+<p>This is line 41</p>
+<p>This is line 42</p>
+<p>This is line 43</p>hi!
+                                    
+    <p>This is line 1 nested</p>
+    <p>This is line 2 nested</p>
+    <p>This is line 3 nested</p>
+    <p>This is line 4 nested</p>
+    <p>This is line 5 nested</p>
+    <p>This is line 6 nested</p>
+    <p>This is line 7 nested</p>
+    <p>This is line 8 nested</p>
+    <p>This is line 9 nested</p>
+    <p>This is line 10 nested</p>
+    <p>This is line 11 nested</p>
+    <p>This is line 12 nested</p>
+    <p>This is line 13 nested</p>
+    <p>This is line 14 nested</p>
+    <p>This is line 15 nested</p>
+    <p>This is line 16 nested</p>
+    <p>This is line 17 nested</p>
+    <p>This is line 18 nested</p>
+    <p>This is line 19 nested</p>
+    <p>This is line 20 nested</p>
+    <p>This is line 21 nested</p>
+    <p>This is line 22 nested</p>
+    <p>This is line 23 nested</p>
+    <p>This is line 24 nested</p>
+    <p>This is line 25 nested</p>
+    <p>This is line 26 nested</p>
+    <p>This is line 27 nested</p>
+    <p>This is line 28 nested</p>
+    <p>This is line 29 nested</p>
+    <p>30</p>
+ !
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Tags_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Tags_DesignTime.codegen.html
new file mode 100644
index 0000000000..419c13c11c
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Tags_DesignTime.codegen.html
@@ -0,0 +1,9 @@
+  
+    <script type="text/javascript"     ></script @foo >
+ 
+
+<script type="text/html">
+    <%var x = window == null%>
+</script>
+
+<script></script @
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Templates_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Templates_DesignTime.codegen.html
new file mode 100644
index 0000000000..de0b735525
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Templates_DesignTime.codegen.html
@@ -0,0 +1,53 @@
+            
+                                                                       
+                                             
+                                            
+                                                            
+             
+           
+     
+ 
+
+  
+                                 <text>This works      !</text> 
+            
+ 
+
+   
+                                 <p class="     ">Hello</p> 
+                   
+ 
+
+<ul>
+              <li>Item #     </li>  
+</ul>
+
+<p>
+           
+       This is line#      of markup<br/>
+ 
+</p>
+
+<p>
+           
+      : This is line#      of markup<br />
+ 
+</p>
+
+<p>
+           
+      :: This is line#      of markup<br />
+ 
+</p>
+
+
+<ul>
+                 <li>
+        Item #     
+                             
+        <ul>
+            <li>Child Items... ?</li>
+                                                           
+        </ul>
+    </li> 
+</ul> 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/UnfinishedExpressionInCode_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/UnfinishedExpressionInCode_DesignTime.codegen.html
new file mode 100644
index 0000000000..ae3e23d828
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/UnfinishedExpressionInCode_DesignTime.codegen.html
@@ -0,0 +1,3 @@
+  
+          
+ 
\ No newline at end of file
diff --git a/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Usings_DesignTime.codegen.html b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Usings_DesignTime.codegen.html
new file mode 100644
index 0000000000..d16439d975
--- /dev/null
+++ b/src/Razor/Microsoft.AspNetCore.Razor.Language/test/TestFiles/IntegrationTests/CodeGenerationIntegrationTest/Usings_DesignTime.codegen.html
@@ -0,0 +1,15 @@
+                
+                                 
+             
+
+                    
+                            
+                                          
+
+   
+                                                               
+                                                                                        
+ 
+
+<p>Path's full type name is                       </p>
+<p>Foo's actual full type name is                      </p>
\ No newline at end of file
diff --git a/src/Razor/test/Microsoft.AspNetCore.Razor.Test.Common/Language/IntegrationTests/IntegrationTestBase.cs b/src/Razor/test/Microsoft.AspNetCore.Razor.Test.Common/Language/IntegrationTests/IntegrationTestBase.cs
index 84ed8ac87f..1f50719819 100644
--- a/src/Razor/test/Microsoft.AspNetCore.Razor.Test.Common/Language/IntegrationTests/IntegrationTestBase.cs
+++ b/src/Razor/test/Microsoft.AspNetCore.Razor.Test.Common/Language/IntegrationTests/IntegrationTestBase.cs
@@ -361,6 +361,36 @@ namespace Microsoft.AspNetCore.Razor.Language.IntegrationTests
             IntermediateNodeVerifier.Verify(document, baseline);
         }
 
+        internal void AssertHtmlDocumentMatchesBaseline(RazorHtmlDocument htmlDocument)
+        {
+            if (FileName == null)
+            {
+                var message = $"{nameof(AssertHtmlDocumentMatchesBaseline)} should only be called from an integration test ({nameof(FileName)} is null).";
+                throw new InvalidOperationException(message);
+            }
+
+            var baselineFileName = Path.ChangeExtension(FileName, ".codegen.html");
+
+            if (GenerateBaselines)
+            {
+                var baselineFullPath = Path.Combine(TestProjectRoot, baselineFileName);
+                File.WriteAllText(baselineFullPath, htmlDocument.GeneratedHtml);
+                return;
+            }
+
+            var htmlFile = TestFile.Create(baselineFileName, GetType().GetTypeInfo().Assembly);
+            if (!htmlFile.Exists())
+            {
+                throw new XunitException($"The resource {baselineFileName} was not found.");
+            }
+
+            var baseline = htmlFile.ReadAllText();
+
+            // Normalize newlines to match those in the baseline.
+            var actual = htmlDocument.GeneratedHtml.Replace("\r", "").Replace("\n", "\r\n");
+            Assert.Equal(baseline, actual);
+        }
+
         protected void AssertCSharpDocumentMatchesBaseline(RazorCSharpDocument cSharpDocument)
         {
             if (FileName == null)