public void ModelExpressionPass_ModelExpressionProperty_SimpleExpression()
{
// Arrange
// Using \r\n here because we verify line mappings
var codeDocument = CreateDocument(
"@addTagHelper TestTagHelper, TestAssembly\r\n<p foo=\"Bar\">");
var tagHelpers = new[]
{
TagHelperDescriptorBuilder.Create("TestTagHelper", "TestAssembly")
.BoundAttributeDescriptor(attribute =>
attribute
.Name("Foo")
.TypeName("Microsoft.AspNetCore.Mvc.ViewFeatures.ModelExpression"))
.TagMatchingRuleDescriptor(rule =>
rule.RequireTagName("p"))
.Build()
};
var engine = CreateEngine(tagHelpers);
var pass = new ModelExpressionPass()
{
Engine = engine,
};
var irDocument = CreateIRDocument(engine, codeDocument);
// Act
pass.Execute(codeDocument, irDocument);
// Assert
var tagHelper = FindTagHelperNode(irDocument);
var setProperty = tagHelper.Children.OfType <TagHelperPropertyIntermediateNode>().Single();
var expression = Assert.IsType <CSharpExpressionIntermediateNode>(Assert.Single(setProperty.Children));
Assert.Equal("ModelExpressionProvider.CreateModelExpression(ViewData, __model => __model.Bar)", GetCSharpContent(expression));
var originalNode = Assert.IsAssignableFrom <IntermediateToken>(expression.Children[2]);
Assert.Equal(TokenKind.CSharp, originalNode.Kind);
Assert.Equal("Bar", originalNode.Content);
Assert.Equal(new SourceSpan("test.cshtml", 51, 1, 8, 3), originalNode.Source.Value);
}
public void ModelExpressionPass_NonModelExpressionProperty_Ignored()
{
// Arrange
var codeDocument = CreateDocument(@"
@addTagHelper TestTagHelper, TestAssembly
<p foo=""17"">");
var tagHelpers = new[]
{
TagHelperDescriptorBuilder.Create("TestTagHelper", "TestAssembly")
.BoundAttributeDescriptor(attribute =>
attribute
.Name("Foo")
.TypeName("System.Int32"))
.TagMatchingRuleDescriptor(rule =>
rule.RequireTagName("p"))
.Build()
};
var engine = CreateEngine(tagHelpers);
var pass = new ModelExpressionPass()
{
Engine = engine,
};
var irDocument = CreateIRDocument(engine, codeDocument);
// Act
pass.Execute(codeDocument, irDocument);
// Assert
var tagHelper = FindTagHelperNode(irDocument);
var setProperty = tagHelper.Children.OfType <TagHelperPropertyIntermediateNode>().Single();
var token = Assert.IsAssignableFrom <IntermediateToken>(Assert.Single(setProperty.Children));
Assert.True(token.IsCSharp);
Assert.Equal("17", token.Content);
}