public void WriteCSharpExpression_SkipsLinePragma_WithoutSource()
{
// Arrange
var writer = new DesignTimeNodeWriter();
var context = TestCodeRenderingContext.CreateDesignTime();
var node = new CSharpExpressionIntermediateNode();
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(
@"__o = i++;
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteUsingDirective_WithSource_WritesContentWithLinePragmaAndMapping()
{
// Arrange
var writer = new DesignTimeNodeWriter();
var sourceDocument = TestRazorSourceDocument.Create("@using System;");
var context = TestCodeRenderingContext.CreateDesignTime();
var originalSpan = new SourceSpan("test.cshtml", 0, 0, 0, 6);
var generatedSpan = new SourceSpan(null, 21 + Environment.NewLine.Length, 1, 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(
@"#line 1 ""test.cshtml""
using System;
#line default
#line hidden
",
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(
@"#line 1 ""test.cshtml""
if(@true){
#line default
#line hidden
Render Children
#line 1 ""test.cshtml""
}
#line default
#line hidden
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpCode_SkipsLinePragma_WithoutSource()
{
// Arrange
var writer = new DesignTimeNodeWriter();
var context = TestCodeRenderingContext.CreateDesignTime();
var node = new CSharpCodeIntermediateNode();
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(
@"if (true) { }
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpCode_WritesPadding_WithSource()
{
// Arrange
var writer = new DesignTimeNodeWriter();
var context = TestCodeRenderingContext.CreateDesignTime();
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(
@"#line 1 ""test.cshtml""
if (true) { }
#line default
#line hidden
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpCode_WhitespaceContentWithSource_WritesContent()
{
// Arrange
var writer = new DesignTimeNodeWriter();
var context = TestCodeRenderingContext.CreateDesignTime();
var node = new CSharpCodeIntermediateNode()
{
Source = new SourceSpan("test.cshtml", 0, 0, 0, 3),
};
IntermediateNodeBuilder.Create(node)
.Add(new IntermediateToken()
{
Kind = TokenKind.CSharp,
Content = " "
});
// Act
writer.WriteCSharpCode(context, node);
// Assert
var csharp = context.CodeWriter.GenerateCode();
Assert.Equal(
@"
",
csharp,
ignoreLineEndingDifferences: true);
}
public void WriteCSharpExpression_WritesLinePragma_WithSource()
{
// Arrange
var writer = new DesignTimeNodeWriter();
var context = TestCodeRenderingContext.CreateDesignTime();
var node = new CSharpExpressionIntermediateNode()
{
Source = new SourceSpan("test.cshtml", 0, 0, 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(
@"#line 1 ""test.cshtml""
__o = i++;
#line default
#line hidden
",
csharp,
ignoreLineEndingDifferences: true);
}
public static CodeRenderingContext CreateDesignTime(
string newLineString = null,
string suppressUniqueIds = "test",
RazorSourceDocument source = null,
IntermediateNodeWriter nodeWriter = null)
{
var codeWriter = new CodeWriter();
var documentNode = new DocumentIntermediateNode();
var options = RazorCodeGenerationOptions.CreateDesignTimeDefault();
if (source is null)
{
source = TestRazorSourceDocument.Create();
}
var codeDocument = RazorCodeDocument.Create(source);
if (newLineString != null)
{
codeDocument.Items[CodeRenderingContext.NewLineString] = newLineString;
}
if (suppressUniqueIds != null)
{
codeDocument.Items[CodeRenderingContext.SuppressUniqueIds] = suppressUniqueIds;
}
if (nodeWriter is null)
{
nodeWriter = new DesignTimeNodeWriter();
}
var context = new DefaultCodeRenderingContext(codeWriter, nodeWriter, codeDocument, documentNode, options);
context.Visitor = new RenderChildrenVisitor(context);
return(context);
}
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);
}