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Add test for TagHelperAttributeCodeGenerator extensibility.
- Tested that we can successfully plugin our own TagHelperAttributeCodeGenerator. - Moved some existing TagHelper test logic into its own base type to enhance code reusability. #119
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103 changes: 103 additions & 0 deletions
103
test/Microsoft.AspNet.Razor.Test/Generator/TagHelperAttributeCodeGeneratorTest.cs
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| // Copyright (c) Microsoft Open Technologies, Inc. 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.Reflection; | ||
| using Microsoft.AspNet.Razor.Generator; | ||
| using Microsoft.AspNet.Razor.Generator.Compiler; | ||
| using Microsoft.AspNet.Razor.Generator.Compiler.CSharp; | ||
| using Microsoft.AspNet.Razor.TagHelpers; | ||
| using Moq; | ||
| using Xunit; | ||
|
|
||
| namespace Microsoft.AspNet.Razor.Test.Generator | ||
| { | ||
| public class TagHelperAttributeCodeGeneratorTests : TagHelperTestBase | ||
| { | ||
| [Fact] | ||
| public void TagHelpers_CanReplaceAttributeCodeGeneratorLogic() | ||
| { | ||
| var inputTypePropertyInfo = new Mock<PropertyInfo>(); | ||
| inputTypePropertyInfo.Setup(ipi => ipi.PropertyType).Returns(typeof(string)); | ||
| inputTypePropertyInfo.Setup(ipi => ipi.Name).Returns("Type"); | ||
| var checkedPropertyInfo = new Mock<PropertyInfo>(); | ||
| checkedPropertyInfo.Setup(ipi => ipi.PropertyType).Returns(typeof(bool)); | ||
| checkedPropertyInfo.Setup(ipi => ipi.Name).Returns("Checked"); | ||
| // Arrange | ||
| var tagHelperProvider = new TagHelperDescriptorProvider( | ||
| new TagHelperDescriptor[] | ||
| { | ||
| new TagHelperDescriptor("p", "PTagHelper", ContentBehavior.None), | ||
| new TagHelperDescriptor("input", | ||
| "InputTagHelper", | ||
| ContentBehavior.None, | ||
| new TagHelperAttributeDescriptor[] { | ||
| new TagHelperAttributeDescriptor("type", inputTypePropertyInfo.Object) | ||
| }), | ||
| new TagHelperDescriptor("input", | ||
| "InputTagHelper2", | ||
| ContentBehavior.None, | ||
| new TagHelperAttributeDescriptor[] { | ||
| new TagHelperAttributeDescriptor("type", inputTypePropertyInfo.Object), | ||
| new TagHelperAttributeDescriptor("checked", checkedPropertyInfo.Object) | ||
| }), | ||
| }); | ||
|
|
||
| // Act & Assert | ||
| RunTagHelperTest(testName: "BasicTagHelpers", | ||
| baseLineName: "BasicTagHelpers.CustomAttributeCodeGenerator", | ||
| tagHelperDescriptorProvider: tagHelperProvider, | ||
| hostConfig: (host) => | ||
| { | ||
| return new CodeBuilderReplacingHost(); | ||
| }); | ||
| } | ||
|
|
||
| private class CodeBuilderReplacingHost : RazorEngineHost | ||
| { | ||
| public CodeBuilderReplacingHost() | ||
| : base(new CSharpRazorCodeLanguage()) | ||
| { | ||
| } | ||
|
|
||
| public override CodeBuilder DecorateCodeBuilder(CodeBuilder incomingBuilder, CodeBuilderContext context) | ||
| { | ||
| return new AttributeCodeGeneratorReplacingCodeBuilder(context); | ||
| } | ||
| } | ||
|
|
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| private class AttributeCodeGeneratorReplacingCodeBuilder : CSharpCodeBuilder | ||
| { | ||
| public AttributeCodeGeneratorReplacingCodeBuilder(CodeBuilderContext context) | ||
| : base(context) | ||
| { | ||
| } | ||
|
|
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| protected override CSharpCodeVisitor DecorateCSharpCodeVisitor([NotNull] CSharpCodeWriter writer, | ||
| [NotNull] CodeBuilderContext context, | ||
| [NotNull] CSharpCodeVisitor incomingVisitor) | ||
| { | ||
| incomingVisitor.TagHelperRenderer = | ||
| new CSharpTagHelperCodeRenderer(incomingVisitor, | ||
| new CustomTagHelperAttributeCodeGenerator(), | ||
| writer, | ||
| context); | ||
|
|
||
| return base.DecorateCSharpCodeVisitor(writer, context, incomingVisitor); | ||
| } | ||
| } | ||
|
|
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| private class CustomTagHelperAttributeCodeGenerator : TagHelperAttributeValueCodeRenderer | ||
| { | ||
| public override void RenderAttributeValue([NotNull]TagHelperAttributeDescriptor attributeInfo, | ||
| [NotNull]CSharpCodeWriter writer, | ||
| [NotNull]CodeGeneratorContext context, | ||
| [NotNull]Action<CSharpCodeWriter> renderAttributeValue) | ||
| { | ||
| writer.Write("**From custom attribute code generator**: "); | ||
|
|
||
| base.RenderAttributeValue(attributeInfo, writer, context, renderAttributeValue); | ||
| } | ||
| } | ||
| } | ||
| } |
56 changes: 56 additions & 0 deletions
56
test/Microsoft.AspNet.Razor.Test/Generator/TagHelperTestBase.cs
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| // Copyright (c) Microsoft Open Technologies, Inc. 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.Linq; | ||
| using Microsoft.AspNet.Razor.Parser; | ||
| using Microsoft.AspNet.Razor.Parser.TagHelpers.Internal; | ||
| using Microsoft.AspNet.Razor.TagHelpers; | ||
|
|
||
| namespace Microsoft.AspNet.Razor.Test.Generator | ||
| { | ||
| public class TagHelperTestBase : CSharpRazorCodeGeneratorTest | ||
| { | ||
| protected void RunTagHelperTest(string testName, TagHelperDescriptorProvider tagHelperDescriptorProvider) | ||
| { | ||
| RunTagHelperTest(testName, testName, tagHelperDescriptorProvider, (host) => host); | ||
| } | ||
|
|
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| protected void RunTagHelperTest(string testName, | ||
| string baseLineName, | ||
| TagHelperDescriptorProvider tagHelperDescriptorProvider, | ||
| Func<RazorEngineHost, RazorEngineHost> hostConfig) | ||
| { | ||
| RunTest(name: testName, | ||
| baselineName: baseLineName, | ||
| templateEngineConfig: (engine) => | ||
| { | ||
| return new TagHelperTemplateEngine(engine, tagHelperDescriptorProvider); | ||
| }, | ||
| hostConfig: hostConfig); | ||
| } | ||
|
|
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| private class TagHelperTemplateEngine : RazorTemplateEngine | ||
| { | ||
| private TagHelperDescriptorProvider _tagHelperDescriptorProvider; | ||
|
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| public TagHelperTemplateEngine(RazorTemplateEngine engine, TagHelperDescriptorProvider tagHelperDescriptorProvider) | ||
| : base(engine.Host) | ||
| { | ||
| _tagHelperDescriptorProvider = tagHelperDescriptorProvider; | ||
| } | ||
|
|
||
| protected internal override RazorParser CreateParser() | ||
| { | ||
| var parser = base.CreateParser(); | ||
| var optimizers = parser.Optimizers.Where(opmzr => !(opmzr is TagHelperParseTreeRewriter)); | ||
|
|
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| parser.Optimizers = optimizers.Concat(new[] { | ||
| new TagHelperParseTreeRewriter(_tagHelperDescriptorProvider) | ||
| }).ToList(); | ||
|
|
||
| return parser; | ||
| } | ||
| } | ||
| } | ||
| } |
64 changes: 64 additions & 0 deletions
64
...or.Test/TestFiles/CodeGenerator/CS/Output/BasicTagHelpers.CustomAttributeCodeGenerator.cs
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|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| namespace TestOutput | ||
| { | ||
| using System.Threading.Tasks; | ||
|
|
||
| public class BasicTagHelpers | ||
| { | ||
| private TagHelperManager __tagHelperManager { get; set; } | ||
| #line hidden | ||
| public BasicTagHelpers() | ||
| { | ||
| } | ||
|
|
||
| #pragma warning disable 1998 | ||
| public override async Task ExecuteAsync() | ||
| { | ||
| var __tagHelperAttributeValue = string.Empty; | ||
| PTagHelper __p_PTagHelper; | ||
| InputTagHelper __input_InputTagHelper; | ||
| InputTagHelper2 __input_InputTagHelper2; | ||
| WriteLiteral("<div class=\"randomNonTagHelperAttribute\">\r\n "); | ||
| __p_PTagHelper = __tagHelperManager.InstantiateTagHelper<PTagHelper>(); | ||
| __tagHelperManager.AddHtmlAttribute("class", "Hello World"); | ||
| __tagHelperManager.StartTagHelpersScope("p"); | ||
| await __tagHelperManager.ExecuteTagHelpersAsync(); | ||
| WriteLiteral(__tagHelperManager.GenerateTagStart()); | ||
| WriteLiteral("\r\n "); | ||
| __p_PTagHelper = __tagHelperManager.InstantiateTagHelper<PTagHelper>(); | ||
| __tagHelperManager.StartTagHelpersScope("p"); | ||
| await __tagHelperManager.ExecuteTagHelpersAsync(); | ||
| WriteLiteral(__tagHelperManager.GenerateTagStart()); | ||
| WriteLiteral(__tagHelperManager.GenerateTagEnd()); | ||
| __tagHelperManager.EndTagHelpersScope(); | ||
| WriteLiteral("\r\n "); | ||
| __input_InputTagHelper = __tagHelperManager.InstantiateTagHelper<InputTagHelper>(); | ||
| __input_InputTagHelper.Type = **From custom attribute code generator**: "text"; | ||
| __tagHelperManager.AddTagHelperAttribute("type", __input_InputTagHelper.Type); | ||
| __input_InputTagHelper2 = __tagHelperManager.InstantiateTagHelper<InputTagHelper2>(); | ||
| __input_InputTagHelper2.Type = __input_InputTagHelper.Type; | ||
| __tagHelperManager.StartTagHelpersScope("input"); | ||
| await __tagHelperManager.ExecuteTagHelpersAsync(); | ||
| WriteLiteral(__tagHelperManager.GenerateTagStart()); | ||
| WriteLiteral(__tagHelperManager.GenerateTagEnd()); | ||
| __tagHelperManager.EndTagHelpersScope(); | ||
| WriteLiteral("\r\n "); | ||
| __input_InputTagHelper = __tagHelperManager.InstantiateTagHelper<InputTagHelper>(); | ||
| __input_InputTagHelper.Type = **From custom attribute code generator**: "checkbox"; | ||
| __tagHelperManager.AddTagHelperAttribute("type", __input_InputTagHelper.Type); | ||
| __input_InputTagHelper2 = __tagHelperManager.InstantiateTagHelper<InputTagHelper2>(); | ||
| __input_InputTagHelper2.Type = __input_InputTagHelper.Type; | ||
| __input_InputTagHelper2.Checked = **From custom attribute code generator**: true; | ||
| __tagHelperManager.AddTagHelperAttribute("checked", __input_InputTagHelper2.Checked); | ||
| __tagHelperManager.StartTagHelpersScope("input"); | ||
| await __tagHelperManager.ExecuteTagHelpersAsync(); | ||
| WriteLiteral(__tagHelperManager.GenerateTagStart()); | ||
| WriteLiteral(__tagHelperManager.GenerateTagEnd()); | ||
| __tagHelperManager.EndTagHelpersScope(); | ||
| WriteLiteral("\r\n "); | ||
| WriteLiteral(__tagHelperManager.GenerateTagEnd()); | ||
| __tagHelperManager.EndTagHelpersScope(); | ||
| WriteLiteral("\r\n</div>"); | ||
| } | ||
| #pragma warning restore 1998 | ||
| } | ||
| } |