public void WriteCSharpExpression_WithSource_WritesPadding()
{
// Arrange
var codeWriter = new CodeWriter();
var writer = new RuntimeNodeWriter()
{
WriteCSharpExpressionMethod = "Test",
};
var context = TestCodeRenderingContext.CreateRuntime();
var node = new CSharpExpressionIntermediateNode()
{
Source = new SourceSpan("test.cshtml", 8, 0, 8, 3),
};
var builder = IntermediateNodeBuilder.Create(node);
builder.Add(new IntermediateToken()
{
Content = "i",
Kind = TokenKind.CSharp,
});
builder.Add(new MyExtensionIntermediateNode());
builder.Add(new IntermediateToken()
{
Content = "++",
Kind = TokenKind.CSharp,
});
// Act
writer.WriteCSharpExpression(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"
#nullable restore
#line 1 ""test.cshtml""
Test(iRender Children
++);
#line default
#line hidden
#nullable disable
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteHtmlLiteral_WithinMaxSize_WritesSingleLiteral()
{
// Arrange
var codeWriter = new CodeWriter();
var writer = new RuntimeNodeWriter();
var context = TestCodeRenderingContext.CreateRuntime();
// Act
writer.WriteHtmlLiteral(context, maxStringLiteralLength: 6, "Hello");
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"WriteLiteral(""Hello"");
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteHtmlLiteral_GreaterThanMaxSize_SingleEmojisSplit()
{
// Arrange
var codeWriter = new CodeWriter();
var writer = new RuntimeNodeWriter();
var context = TestCodeRenderingContext.CreateRuntime();
// Act
writer.WriteHtmlLiteral(context, maxStringLiteralLength: 2, " 👦");
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"WriteLiteral("" "");
WriteLiteral(""👦"");
",
csharp,
ignoreLineEndingDifferences: true);
}
public void EndWriterScope_RendersCorrectly()
{
// Arrange
var writer = new RuntimeNodeWriter()
{
PopWriterMethod = "TestPopWriter"
};
var context = TestCodeRenderingContext.CreateRuntime();
// Act
writer.EndWriterScope(context);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"TestPopWriter();
",
csharp,
ignoreLineEndingDifferences: true);
}
public void BeginWriterScope_UsesSpecifiedWriter_RendersCorrectly()
{
// Arrange
var writer = new RuntimeNodeWriter()
{
PushWriterMethod = "TestPushWriter"
};
var context = TestCodeRenderingContext.CreateRuntime();
// Act
writer.BeginWriterScope(context, "MyWriter");
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"TestPushWriter(MyWriter);
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpCode_WritesPadding_WithSource()
{
// Arrange
var codeWriter = new CodeWriter();
var writer = new RuntimeNodeWriter();
var context = TestCodeRenderingContext.CreateRuntime();
var node = new CSharpCodeIntermediateNode()
{
Source = new SourceSpan("test.cshtml", 0, 0, 0, 17),
};
IntermediateNodeBuilder.Create(node)
.Add(new IntermediateToken()
{
Kind = TokenKind.CSharp,
Content = " if (true) { }",
});
// Act
writer.WriteCSharpCode(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"
#nullable restore
#line 1 ""test.cshtml""
if (true) { }
#line default
#line hidden
#nullable disable
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpExpression_WithExtensionNode_WritesPadding()
{
// Arrange
var codeWriter = new CodeWriter();
var writer = new RuntimeNodeWriter()
{
WriteCSharpExpressionMethod = "Test",
};
var context = TestCodeRenderingContext.CreateRuntime();
var node = new CSharpExpressionIntermediateNode();
var builder = IntermediateNodeBuilder.Create(node);
builder.Add(new IntermediateToken()
{
Content = "i",
Kind = TokenKind.CSharp,
});
builder.Add(new MyExtensionIntermediateNode());
builder.Add(new IntermediateToken()
{
Content = "++",
Kind = TokenKind.CSharp,
});
// Act
writer.WriteCSharpExpression(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"Test(iRender Children
++);
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpCodeAttributeValue_WithExpression_RendersCorrectly()
{
var writer = new DesignTimeNodeWriter();
var content = "<input checked=\"hello-world @if(@true){ @false }\" />";
var sourceDocument = TestRazorSourceDocument.Create(content);
var codeDocument = RazorCodeDocument.Create(sourceDocument);
var documentNode = Lower(codeDocument);
var node = documentNode.Children.OfType <HtmlAttributeIntermediateNode>().Single().Children[1] as CSharpCodeAttributeValueIntermediateNode;
var context = TestCodeRenderingContext.CreateDesignTime(source: sourceDocument);
// Act
writer.WriteCSharpCodeAttributeValue(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"
#nullable restore
#line 1 ""test.cshtml""
if(@true){
#line default
#line hidden
#nullable disable
Render Children
#nullable restore
#line 1 ""test.cshtml""
}
#line default
#line hidden
#nullable disable
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpCode_WhitespaceContent_DoesNothing()
{
// Arrange
var writer = new DesignTimeNodeWriter();
var context = TestCodeRenderingContext.CreateDesignTime();
var node = new CSharpCodeIntermediateNode();
IntermediateNodeBuilder.Create(node)
.Add(new IntermediateToken()
{
Kind = TokenKind.CSharp,
Content = " \t"
});
// Act
writer.WriteCSharpCode(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Empty(csharp);
}
public void WriteUsingDirective_NoSource_WritesContent()
{
// Arrange
var writer = new DesignTimeNodeWriter();
var context = TestCodeRenderingContext.CreateDesignTime();
var node = new UsingDirectiveIntermediateNode()
{
Content = "System",
};
// Act
writer.WriteUsingDirective(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"using System;
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpExpression_UsesWriteLiteral_WritesLinePragma_WithSource()
{
// Arrange
var writer = new LiteralRuntimeNodeWriter();
var context = TestCodeRenderingContext.CreateRuntime();
var node = new CSharpExpressionIntermediateNode()
{
Source = new SourceSpan("test.cshtml", 0, 0, 0, 3, 0, 3),
};
var builder = IntermediateNodeBuilder.Create(node);
builder.Add(new IntermediateToken()
{
Content = "i++",
Kind = TokenKind.CSharp,
});
// Act
writer.WriteCSharpExpression(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"
#nullable restore
#line (1,1)-(1,4) 13 ""test.cshtml""
WriteLiteral(i++);
#line default
#line hidden
#nullable disable
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteUsingDirective_WithSource_WritesContentWithLinePragmaAndMapping()
{
// Arrange
var writer = new DesignTimeNodeWriter();
var context = TestCodeRenderingContext.CreateDesignTime();
var originalSpan = new SourceSpan("test.cshtml", 0, 0, 0, 6);
var generatedSpan = new SourceSpan(null, 38 + Environment.NewLine.Length * 3, 3, 0, 6);
var expectedSourceMapping = new SourceMapping(originalSpan, generatedSpan);
var node = new UsingDirectiveIntermediateNode()
{
Content = "System",
Source = originalSpan,
};
// Act
writer.WriteUsingDirective(context, node);
// Assert
var mapping = Assert.Single(((DefaultCodeRenderingContext)context).SourceMappings);
Assert.Equal(expectedSourceMapping, mapping);
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"
#nullable restore
#line 1 ""test.cshtml""
using System;
#line default
#line hidden
#nullable disable
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteHtmlAttributeValue_RendersCorrectly()
{
var writer = new TagHelperHtmlAttributeRuntimeNodeWriter();
var content = "<input checked=\"hello-world @false\" />";
var sourceDocument = TestRazorSourceDocument.Create(content);
var codeDocument = RazorCodeDocument.Create(sourceDocument);
var documentNode = Lower(codeDocument);
var node = documentNode.Children.OfType <HtmlAttributeIntermediateNode>().Single().Children[0] as HtmlAttributeValueIntermediateNode;
var context = TestCodeRenderingContext.CreateRuntime();
// Act
writer.WriteHtmlAttributeValue(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"AddHtmlAttributeValue("""", 16, ""hello-world"", 16, 11, true);
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpCodeAttributeValue_BuffersResult()
{
// Arrange
var writer = new RuntimeNodeWriter();
var content = "<input checked=\"hello-world @if(@true){ }\" />";
var sourceDocument = TestRazorSourceDocument.Create(content);
var codeDocument = RazorCodeDocument.Create(sourceDocument);
var documentNode = Lower(codeDocument);
var node = documentNode.Children.OfType <HtmlAttributeIntermediateNode>().Single().Children[1] as CSharpCodeAttributeValueIntermediateNode;
var context = TestCodeRenderingContext.CreateRuntime(source: sourceDocument);
// Act
writer.WriteCSharpCodeAttributeValue(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"WriteAttributeValue("" "", 27, new Microsoft.AspNetCore.Mvc.Razor.HelperResult(async(__razor_attribute_value_writer) => {
PushWriter(__razor_attribute_value_writer);
#nullable restore
#line 1 ""test.cshtml""
if(@true){ }
#line default
#line hidden
#nullable disable
PopWriter();
}
), 28, 13, false);
",
csharp,
ignoreLineEndingDifferences: true);
}
