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Add unit tests for UITreeBuilder

This commit is contained in:
Steve Sanderson 2018-01-04 15:25:14 +00:00
parent 5238dd9bc4
commit 5e25ab16a2
3 changed files with 192 additions and 1 deletions
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9
Blazor.sln
View File

@ -52,7 +52,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.Blazor.Build", "s
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.Blazor.Browser.JS", "src\Microsoft.Blazor.Browser.JS\Microsoft.Blazor.Browser.JS.csproj", "{8A19B1CE-9B62-4440-93B3-152DDBB39D0A}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microsoft.Blazor.Browser", "src\Microsoft.Blazor.Browser\Microsoft.Blazor.Browser.csproj", "{4874AFF4-335D-4037-8858-BBBB987C124B}"
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.Blazor.Browser", "src\Microsoft.Blazor.Browser\Microsoft.Blazor.Browser.csproj", "{4874AFF4-335D-4037-8858-BBBB987C124B}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microsoft.Blazor.Test", "test\Microsoft.Blazor.Test\Microsoft.Blazor.Test.csproj", "{8FD8636E-AFA5-434D-8857-06D02686741A}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
@ -132,6 +134,10 @@ Global
{4874AFF4-335D-4037-8858-BBBB987C124B}.Debug|Any CPU.Build.0 = Debug|Any CPU
{4874AFF4-335D-4037-8858-BBBB987C124B}.Release|Any CPU.ActiveCfg = Release|Any CPU
{4874AFF4-335D-4037-8858-BBBB987C124B}.Release|Any CPU.Build.0 = Release|Any CPU
{8FD8636E-AFA5-434D-8857-06D02686741A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{8FD8636E-AFA5-434D-8857-06D02686741A}.Debug|Any CPU.Build.0 = Debug|Any CPU
{8FD8636E-AFA5-434D-8857-06D02686741A}.Release|Any CPU.ActiveCfg = Release|Any CPU
{8FD8636E-AFA5-434D-8857-06D02686741A}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
@ -158,6 +164,7 @@ Global
{8B3D0F1C-0E38-4E6D-BFF1-C4FDA0CD9815} = {B867E038-B3CE-43E3-9292-61568C46CDEB}
{8A19B1CE-9B62-4440-93B3-152DDBB39D0A} = {B867E038-B3CE-43E3-9292-61568C46CDEB}
{4874AFF4-335D-4037-8858-BBBB987C124B} = {B867E038-B3CE-43E3-9292-61568C46CDEB}
{8FD8636E-AFA5-434D-8857-06D02686741A} = {ADA3AE29-F6DE-49F6-8C7C-B321508CAE8E}
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {504DA352-6788-4DC0-8705-82167E72A4D3}

20
test/Microsoft.Blazor.Test/Microsoft.Blazor.Test.csproj Normal file
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@ -0,0 +1,20 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netcoreapp2.0</TargetFramework>
<IsPackable>false</IsPackable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.5.0" />
<PackageReference Include="xunit" Version="2.3.1" />
<PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
<DotNetCliToolReference Include="dotnet-xunit" Version="2.3.1" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\src\Microsoft.Blazor\Microsoft.Blazor.csproj" />
</ItemGroup>
</Project>

164
test/Microsoft.Blazor.Test/UITreeBuilderTest.cs Normal file
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@ -0,0 +1,164 @@
// 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 Microsoft.Blazor.UITree;
using System.Linq;
using Xunit;
namespace Microsoft.Blazor.Test
{
public class UITreeBuilderTest
{
[Fact]
public void StartsEmpty()
{
// Arrange
var builder = new UITreeBuilder();
// Assert
var nodes = builder.GetNodes();
Assert.NotNull(nodes.Array);
Assert.Equal(0, nodes.Offset);
Assert.Empty(nodes);
}
[Fact]
public void CanAddText()
{
// Arrange
var builder = new UITreeBuilder();
// Act
builder.AddText("First item");
builder.AddText("Second item");
// Assert
var nodes = builder.GetNodes();
Assert.Equal(0, nodes.Offset);
Assert.Collection(nodes,
node => AssertText(node, "First item"),
node => AssertText(node, "Second item"));
}
[Fact]
public void UnclosedElementsHaveNoEndDescendantIndex()
{
// Arrange
var builder = new UITreeBuilder();
// Act
builder.OpenElement("my element");
// Assert
var node = builder.GetNodes().Single();
AssertElement(node, "my element", 0);
}
[Fact]
public void ClosedEmptyElementsHaveSelfAsEndDescendantIndex()
{
// Arrange
var builder = new UITreeBuilder();
// Act
builder.AddText("some node so that the element isn't at position zero");
builder.OpenElement("my element");
builder.CloseElement();
// Assert
var nodes = builder.GetNodes();
Assert.Equal(2, nodes.Count);
AssertElement(nodes[1], "my element", 1);
}
[Fact]
public void ClosedElementsHaveCorrectEndDescendantIndex()
{
// Arrange
var builder = new UITreeBuilder();
// Act
builder.OpenElement("my element");
builder.AddText("child 1");
builder.AddText("child 2");
builder.CloseElement();
builder.AddText("unrelated item");
// Assert
var nodes = builder.GetNodes();
Assert.Equal(4, nodes.Count);
AssertElement(nodes[0], "my element", 2);
}
[Fact]
public void CanNestElements()
{
// Arrange
var builder = new UITreeBuilder();
// Act
builder.AddText("standalone text 1"); // 0: standalone text 1
builder.OpenElement("root"); // 1: <root>
builder.AddText("root text 1"); // 2: root text 1
builder.AddText("root text 2"); // 3: root text 2
builder.OpenElement("child"); // 4: <child>
builder.AddText("child text"); // 5: child text
builder.OpenElement("grandchild"); // 6: <grandchild>
builder.AddText("grandchild text 1"); // 7: grandchild text 1
builder.AddText("grandchild text 2"); // 8: grandchild text 2
builder.CloseElement(); // </grandchild>
builder.CloseElement(); // </child>
builder.AddText("root text 3"); // 9: root text 3
builder.OpenElement("child 2"); // 10: <child 2>
builder.CloseElement(); // </child 2>
builder.CloseElement(); // </root>
builder.AddText("standalone text 2"); // 11: standalone text 2
// Assert
Assert.Collection(builder.GetNodes(),
node => AssertText(node, "standalone text 1"),
node => AssertElement(node, "root", 10),
node => AssertText(node, "root text 1"),
node => AssertText(node, "root text 2"),
node => AssertElement(node, "child", 8),
node => AssertText(node, "child text"),
node => AssertElement(node, "grandchild", 8),
node => AssertText(node, "grandchild text 1"),
node => AssertText(node, "grandchild text 2"),
node => AssertText(node, "root text 3"),
node => AssertElement(node, "child 2", 10),
node => AssertText(node, "standalone text 2"));
}
[Fact]
public void CanClear()
{
// Arrange
var builder = new UITreeBuilder();
// Act
builder.AddText("some text");
builder.OpenElement("elem");
builder.AddText("more text");
builder.CloseElement();
builder.Clear();
// Assert
Assert.Empty(builder.GetNodes());
}
void AssertText(UITreeNode node, string textContent)
{
Assert.Equal(UITreeNodeType.Text, node.NodeType);
Assert.Equal(textContent, node.TextContent);
Assert.Equal(0, node.ElementDescendantsEndIndex);
}
void AssertElement(UITreeNode node, string elementName, int descendantsEndIndex)
{
Assert.Equal(UITreeNodeType.Element, node.NodeType);
Assert.Equal(elementName, node.ElementName);
Assert.Equal(descendantsEndIndex, node.ElementDescendantsEndIndex);
}
}
}