public void WriteTagHelperExecute_Runtime_RendersCorrectly()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperExecuteIntermediateNode();
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperExecute(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"await __tagHelperRunner.RunAsync(__tagHelperExecutionContext);
if (!__tagHelperExecutionContext.Output.IsContentModified)
{
await __tagHelperExecutionContext.SetOutputContentAsync();
}
Write(__tagHelperExecutionContext.Output);
__tagHelperExecutionContext = __tagHelperScopeManager.End();
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperBody_DesignTime_WritesChildren()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateDesignTime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperBodyIntermediateNode()
{
Children =
{
new CSharpExpressionIntermediateNode(),
}
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperBody(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"Render Children
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperCreate_Runtime_RendersCorrectly_UsesSpecifiedTagHelperType()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperCreateIntermediateNode()
{
FieldName = "__TestNamespace_MyTagHelper",
TypeName = "TestNamespace.MyTagHelper",
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperCreate(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"__TestNamespace_MyTagHelper = CreateTagHelper<global::TestNamespace.MyTagHelper>();
__tagHelperExecutionContext.Add(__TestNamespace_MyTagHelper);
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperBody_Runtime_RendersCorrectly_UsesTagNameAndModeFromContext()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperBodyIntermediateNode()
{
Children =
{
new CSharpExpressionIntermediateNode(),
},
TagMode = TagMode.SelfClosing,
TagName = "p",
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperBody(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"__tagHelperExecutionContext = __tagHelperScopeManager.Begin(""p"", global::Microsoft.AspNetCore.Razor.TagHelpers.TagMode.SelfClosing, ""test"", async() => {
Render Children
}
);
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperProperty_Runtime_NonStringIndexer_RendersCorrectly()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperPropertyIntermediateNode()
{
AttributeName = "foo-bound",
AttributeStructure = AttributeStructure.DoubleQuotes,
BoundAttribute = IntIndexerTagHelper.BoundAttributes.Single(),
FieldName = "__InputTagHelper",
IsIndexerNameMatch = true,
PropertyName = "IntIndexer",
TagHelper = IntIndexerTagHelper,
Source = Span,
Children =
{
new CSharpExpressionIntermediateNode()
{
Children ={ new IntermediateToken {
Kind = TokenKind.CSharp, Content = "32",
} },
}
}
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperProperty(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"if (__InputTagHelper.IntIndexer == null)
{
throw new InvalidOperationException(InvalidTagHelperIndexerAssignment(""foo-bound"", ""InputTagHelper"", ""IntIndexer""));
}
#nullable restore
#line 3 ""test.cshtml""
__InputTagHelper.IntIndexer[""bound""] = 32;
#line default
#line hidden
#nullable disable
__tagHelperExecutionContext.AddTagHelperAttribute(""foo-bound"", __InputTagHelper.IntIndexer[""bound""], global::Microsoft.AspNetCore.Razor.TagHelpers.HtmlAttributeValueStyle.DoubleQuotes);
",
csharp,
ignoreLineEndingDifferences: true);
}
public void GetDeterministicId_IsDeterministic()
{
// Arrange
var context = TestCodeRenderingContext.CreateRuntime(suppressUniqueIds: null);
// Act
var firstId = DefaultTagHelperTargetExtension.GetDeterministicId(context);
var secondId = DefaultTagHelperTargetExtension.GetDeterministicId(context);
// Assert
Assert.Equal(firstId, secondId);
}
public void WriteTagHelperProperty_DesignTime_NonStringIndexer_RendersCorrectly()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateDesignTime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperPropertyIntermediateNode()
{
AttributeName = "foo-bound",
AttributeStructure = AttributeStructure.DoubleQuotes,
BoundAttribute = IntIndexerTagHelper.BoundAttributes.Single(),
FieldName = "__InputTagHelper",
IsIndexerNameMatch = true,
PropertyName = "IntIndexer",
TagHelper = IntIndexerTagHelper,
Source = Span,
Children =
{
new CSharpExpressionIntermediateNode()
{
Children ={ new IntermediateToken {
Kind = TokenKind.CSharp, Content = "32",
} },
}
}
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperProperty(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"
#nullable restore
#line 3 ""test.cshtml""
__InputTagHelper.IntIndexer[""bound""] = 32;
#line default
#line hidden
#nullable disable
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperProperty_Runtime_StringProperty_HtmlContent_RendersCorrectly()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperPropertyIntermediateNode()
{
AttributeName = "bound",
AttributeStructure = AttributeStructure.DoubleQuotes,
BoundAttribute = StringPropertyTagHelper.BoundAttributes.Single(),
FieldName = "__InputTagHelper",
IsIndexerNameMatch = false,
PropertyName = "StringProp",
TagHelper = StringPropertyTagHelper,
Children =
{
new HtmlContentIntermediateNode()
{
Children ={ new IntermediateToken {
Kind = TokenKind.Html, Content = "\"value\"",
} },
}
}
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperProperty(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
// The attribute value is not rendered inline because we are not using the preallocated writer.
Assert.Equal(
@"BeginWriteTagHelperAttribute();
Render Children
__tagHelperStringValueBuffer = EndWriteTagHelperAttribute();
__InputTagHelper.StringProp = __tagHelperStringValueBuffer;
__tagHelperExecutionContext.AddTagHelperAttribute(""bound"", __InputTagHelper.StringProp, global::Microsoft.AspNetCore.Razor.TagHelpers.HtmlAttributeValueStyle.DoubleQuotes);
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperHtmlAttribute_Runtime_DynamicAttribute_RendersCorrectly()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperHtmlAttributeIntermediateNode()
{
AttributeName = "name",
AttributeStructure = AttributeStructure.DoubleQuotes,
Children =
{
new HtmlAttributeValueIntermediateNode()
{
Children ={ new IntermediateToken {
Kind = TokenKind.Html, Content = "Blah-"
} }
},
new CSharpCodeAttributeValueIntermediateNode()
{
Children ={ new IntermediateToken {
Kind = TokenKind.CSharp, Content = "\"Foo\"",
} },
}
}
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperHtmlAttribute(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"BeginAddHtmlAttributeValues(__tagHelperExecutionContext, ""name"", 2, global::Microsoft.AspNetCore.Razor.TagHelpers.HtmlAttributeValueStyle.DoubleQuotes);
Render Children
Render Children
EndAddHtmlAttributeValues(__tagHelperExecutionContext);
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperHtmlAttribute_DesignTime_WritesNothing()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateDesignTime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperHtmlAttributeIntermediateNode()
{
AttributeName = "name",
AttributeStructure = AttributeStructure.DoubleQuotes,
Children =
{
new HtmlAttributeValueIntermediateNode()
{
Children ={ new IntermediateToken {
Kind = TokenKind.Html, Content = "Blah-"
} }
},
new CSharpCodeAttributeValueIntermediateNode()
{
Children ={ new IntermediateToken {
Kind = TokenKind.CSharp, Content = "\"Foo\"",
} },
}
}
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperHtmlAttribute(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"Render Children
Render Children
",
csharp,
ignoreLineEndingDifferences: true);
}
[Fact] // We don't actually assign the expression result at design time, we just use string.Empty as a placeholder.
public void WriteTagHelperProperty_DesignTime_StringProperty_NonHtmlContent_RendersCorrectly()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateDesignTime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperPropertyIntermediateNode()
{
AttributeName = "bound",
AttributeStructure = AttributeStructure.DoubleQuotes,
BoundAttribute = StringPropertyTagHelper.BoundAttributes.Single(),
FieldName = "__InputTagHelper",
IsIndexerNameMatch = false,
PropertyName = "StringProp",
TagHelper = StringPropertyTagHelper,
Children =
{
new CSharpExpressionIntermediateNode()
{
Children ={ new IntermediateToken {
Kind = TokenKind.CSharp, Content = "\"3+5\"",
} },
}
}
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperProperty(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"Render Children
__InputTagHelper.StringProp = string.Empty;
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperProperty_Runtime_NonStringProperty_RendersCorrectly_WithoutLocation()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperPropertyIntermediateNode()
{
AttributeName = "bound",
AttributeStructure = AttributeStructure.DoubleQuotes,
BoundAttribute = IntPropertyTagHelper.BoundAttributes.Single(),
FieldName = "__InputTagHelper",
IsIndexerNameMatch = false,
PropertyName = "IntProp",
TagHelper = IntPropertyTagHelper,
Children =
{
new CSharpExpressionIntermediateNode()
{
Children ={ new IntermediateToken {
Kind = TokenKind.CSharp, Content = "32",
} },
}
}
};
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperProperty(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"__InputTagHelper.IntProp = 32;
__tagHelperExecutionContext.AddTagHelperAttribute(""bound"", __InputTagHelper.IntProp, global::Microsoft.AspNetCore.Razor.TagHelpers.HtmlAttributeValueStyle.DoubleQuotes);
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperProperty_Runtime_NonStringProperty_SecondUseOfAttribute()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var tagHelperNode = new TagHelperIntermediateNode();
var node1 = new DefaultTagHelperPropertyIntermediateNode()
{
// We only look at the attribute name here.
AttributeName = "bound",
FieldName = "__OtherTagHelper",
PropertyName = "IntProp",
};
var node2 = new DefaultTagHelperPropertyIntermediateNode()
{
AttributeName = "bound",
AttributeStructure = AttributeStructure.DoubleQuotes,
BoundAttribute = IntPropertyTagHelper.BoundAttributes.Single(),
FieldName = "__InputTagHelper",
IsIndexerNameMatch = false,
PropertyName = "IntProp",
TagHelper = IntPropertyTagHelper,
Source = Span,
};
tagHelperNode.Children.Add(node1);
tagHelperNode.Children.Add(node2);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperProperty(context, node2);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"__InputTagHelper.IntProp = __OtherTagHelper.IntProp;
",
csharp,
ignoreLineEndingDifferences: true);
}
public void RenderTagHelperAttributeInline_NonStringIndexerMatch_TemplateInAttribute_Errors()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var node = new DefaultTagHelperPropertyIntermediateNode()
{
BoundAttribute = IntIndexerTagHelper.BoundAttributes.Single(),
IsIndexerNameMatch = true,
};
var expectedLocation = new SourceSpan(100, 10);
var expectedDiagnostic = RazorDiagnosticFactory.CreateTagHelper_InlineMarkupBlocksNotSupportedInAttributes(expectedLocation, "System.Int32");
// Act
extension.RenderTagHelperAttributeInline(context, node, new TemplateIntermediateNode(), expectedLocation);
// Assert
var diagnostic = Assert.Single(context.Diagnostics);
Assert.Equal(expectedDiagnostic, diagnostic);
}
public void WriteTagHelperRuntime_Runtime_DeclaresRequiredFields()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateRuntime();
var node = new DefaultTagHelperRuntimeIntermediateNode();
// Act
extension.WriteTagHelperRuntime(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"#line hidden
#pragma warning disable 0649
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext __tagHelperExecutionContext;
#pragma warning restore 0649
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner __tagHelperRunner = new global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner();
#pragma warning disable 0169
private string __tagHelperStringValueBuffer;
#pragma warning restore 0169
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperScopeManager __backed__tagHelperScopeManager = null;
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperScopeManager __tagHelperScopeManager
{
get
{
if (__backed__tagHelperScopeManager == null)
{
__backed__tagHelperScopeManager = new global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperScopeManager(StartTagHelperWritingScope, EndTagHelperWritingScope);
}
return __backed__tagHelperScopeManager;
}
}
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperRuntime_DesignTime_RendersPreRequisites()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateDesignTime();
var node = new DefaultTagHelperRuntimeIntermediateNode();
// Act
extension.WriteTagHelperRuntime(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"#line hidden
#pragma warning disable 0649
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext __tagHelperExecutionContext;
#pragma warning restore 0649
private global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner __tagHelperRunner = new global::Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner();
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteTagHelperExecute_DesignTime_RendersAsyncCode()
{
// Arrange
var extension = new DefaultTagHelperTargetExtension();
var context = TestCodeRenderingContext.CreateDesignTime();
var tagHelperNode = new TagHelperIntermediateNode();
var node = new DefaultTagHelperExecuteIntermediateNode();
tagHelperNode.Children.Add(node);
Push(context, tagHelperNode);
// Act
extension.WriteTagHelperExecute(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"await __tagHelperRunner.RunAsync(__tagHelperExecutionContext);
",
csharp,
ignoreLineEndingDifferences: true);
}
