diff --git a/test/Microsoft.AspNetCore.Http.Tests/HeaderDictionaryTests.cs b/test/Microsoft.AspNetCore.Http.Tests/HeaderDictionaryTests.cs
index f9cd2488ab..46f8a89e06 100644
--- a/test/Microsoft.AspNetCore.Http.Tests/HeaderDictionaryTests.cs
+++ b/test/Microsoft.AspNetCore.Http.Tests/HeaderDictionaryTests.cs
@@ -30,7 +30,7 @@ namespace Microsoft.AspNetCore.Http
                     { "Header1", "Value1" }
                 });
 
-            Assert.Equal(1, headers.Count);
+            Assert.Single(headers);
             Assert.Equal<string>(new[] { "Header1" }, headers.Keys);
             Assert.True(headers.ContainsKey("header1"));
             Assert.False(headers.ContainsKey("header2"));
diff --git a/test/Microsoft.AspNetCore.Http.Tests/Internal/DefaultHttpRequestTests.cs b/test/Microsoft.AspNetCore.Http.Tests/Internal/DefaultHttpRequestTests.cs
index 4afc7bd04d..dbe1d54dd0 100644
--- a/test/Microsoft.AspNetCore.Http.Tests/Internal/DefaultHttpRequestTests.cs
+++ b/test/Microsoft.AspNetCore.Http.Tests/Internal/DefaultHttpRequestTests.cs
@@ -166,9 +166,9 @@ namespace Microsoft.AspNetCore.Http.Internal
         {
             var request = new DefaultHttpContext().Request;
             var cookieHeaders = request.Headers["Cookie"];
-            Assert.Equal(0, cookieHeaders.Count);
+            Assert.Empty(cookieHeaders);
             var cookies0 = request.Cookies;
-            Assert.Equal(0, cookies0.Count);
+            Assert.Empty(cookies0);
             Assert.Null(cookies0["key0"]);
             Assert.False(cookies0.ContainsKey("key0"));
 
diff --git a/test/Microsoft.AspNetCore.Http.Tests/ResponseCookiesTest.cs b/test/Microsoft.AspNetCore.Http.Tests/ResponseCookiesTest.cs
index 8ab9dd1c64..5e5c44f89d 100644
--- a/test/Microsoft.AspNetCore.Http.Tests/ResponseCookiesTest.cs
+++ b/test/Microsoft.AspNetCore.Http.Tests/ResponseCookiesTest.cs
@@ -20,7 +20,7 @@ namespace Microsoft.AspNetCore.Http.Tests
             cookies.Delete(testcookie);
 
             var cookieHeaderValues = headers[HeaderNames.SetCookie];
-            Assert.Equal(1, cookieHeaderValues.Count);
+            Assert.Single(cookieHeaderValues);
             Assert.StartsWith(testcookie, cookieHeaderValues[0]);
             Assert.Contains("path=/", cookieHeaderValues[0]);
             Assert.Contains("expires=Thu, 01 Jan 1970 00:00:00 GMT", cookieHeaderValues[0]);
@@ -46,7 +46,7 @@ namespace Microsoft.AspNetCore.Http.Tests
             cookies.Delete(testcookie, options);
 
             var cookieHeaderValues = headers[HeaderNames.SetCookie];
-            Assert.Equal(1, cookieHeaderValues.Count);
+            Assert.Single(cookieHeaderValues);
             Assert.StartsWith(testcookie, cookieHeaderValues[0]);
             Assert.Contains("path=/", cookieHeaderValues[0]);
             Assert.Contains("expires=Thu, 01 Jan 1970 00:00:00 GMT", cookieHeaderValues[0]);
@@ -66,7 +66,7 @@ namespace Microsoft.AspNetCore.Http.Tests
             cookies.Delete(testcookie);
 
             var cookieHeaderValues = headers[HeaderNames.SetCookie];
-            Assert.Equal(1, cookieHeaderValues.Count);
+            Assert.Single(cookieHeaderValues);
             Assert.StartsWith(testcookie, cookieHeaderValues[0]);
             Assert.Contains("path=/", cookieHeaderValues[0]);
             Assert.Contains("expires=Thu, 01 Jan 1970 00:00:00 GMT", cookieHeaderValues[0]);
@@ -85,7 +85,7 @@ namespace Microsoft.AspNetCore.Http.Tests
             cookies.Append(testcookie, testcookie, cookieOptions);
 
             var cookieHeaderValues = headers[HeaderNames.SetCookie];
-            Assert.Equal(1, cookieHeaderValues.Count);
+            Assert.Single(cookieHeaderValues);
             Assert.Contains($"max-age={maxAgeTime.TotalSeconds.ToString()}", cookieHeaderValues[0]);
         }
 
@@ -117,7 +117,7 @@ namespace Microsoft.AspNetCore.Http.Tests
             cookies.Append(key, value);
 
             var cookieHeaderValues = headers[HeaderNames.SetCookie];
-            Assert.Equal(1, cookieHeaderValues.Count);
+            Assert.Single(cookieHeaderValues);
             Assert.StartsWith(expected, cookieHeaderValues[0]);
         }
     }