public void WriteCSharpExpressionAttributeValue_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[1] as CSharpExpressionAttributeValueIntermediateNode;

            var context = TestCodeRenderingContext.CreateRuntime();

            // Act
            writer.WriteCSharpExpressionAttributeValue(context, node);

            // Assert
            var csharp = context.CodeWriter.GenerateCode();

            Assert.Equal(
                @"#line 1 ""test.cshtml""
AddHtmlAttributeValue("" "", 27, false, 28, 6, false);

#line default
#line hidden
",
                csharp,
                ignoreLineEndingDifferences: true);
        }
        public void WriteCSharpCodeAttributeValue_BuffersResult()
        {
            var writer = new TagHelperHtmlAttributeRuntimeNodeWriter();

            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(
                @"AddHtmlAttributeValue("" "", 27, new Microsoft.AspNetCore.Mvc.Razor.HelperResult(async(__razor_attribute_value_writer) => {
    PushWriter(__razor_attribute_value_writer);
#line 1 ""test.cshtml""
                             if(@true){ }

#line default
#line hidden
    PopWriter();
}
), 28, 13, false);
",
                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);
        }