public void Render_GenericComponent_WithChildContent()
{
// Arrange
AdditionalSyntaxTrees.Add(GenericContextComponent);
var component = CompileToComponent(@"
<GenericContext TItem=int Items=""@(new List<int>() { 1, 2, })"">
<div>@(context.Item * context.Index)</div>
</GenericContext>");
// Act
var frames = GetRenderTree(component);
// Assert
var genericComponentType = component.GetType().Assembly.DefinedTypes
.Where(t => t.Name == "GenericContext`1")
.Single()
.MakeGenericType(typeof(int));
Assert.Collection(
frames,
frame => AssertFrame.Component(frame, genericComponentType.FullName, 3, 0),
frame => AssertFrame.Attribute(frame, "Items", typeof(List <int>), 1),
frame => AssertFrame.Attribute(frame, RenderTreeBuilder.ChildContent, 2),
frame => AssertFrame.MarkupWhitespace(frame, 3),
frame => AssertFrame.Element(frame, "div", 2, 4),
frame => AssertFrame.Text(frame, "0", 5),
frame => AssertFrame.MarkupWhitespace(frame, 6),
frame => AssertFrame.MarkupWhitespace(frame, 3),
frame => AssertFrame.Element(frame, "div", 2, 4),
frame => AssertFrame.Text(frame, "2", 5),
frame => AssertFrame.MarkupWhitespace(frame, 6));
}
public void Render_BodyChildContent_Recursive()
{
// Arrange
AdditionalSyntaxTrees.Add(RenderChildContentComponent);
var component = CompileToComponent(@"
<RenderChildContent>
<RenderChildContent>
<div></div>
</RenderChildContent>
</RenderChildContent>");
// Act
var frames = GetRenderTree(component);
// Assert
Assert.Collection(
frames,
frame => AssertFrame.Component(frame, "Test.RenderChildContent", 2, 0),
frame => AssertFrame.Attribute(frame, "ChildContent", 1),
frame => AssertFrame.MarkupWhitespace(frame, 2),
frame => AssertFrame.Component(frame, "Test.RenderChildContent", 2, 3),
frame => AssertFrame.Attribute(frame, "ChildContent", 4),
frame => AssertFrame.MarkupWhitespace(frame, 6),
frame => AssertFrame.Markup(frame, "\n <div></div>\n ", 5));
}
[Fact] // Additional coverage of OrphanTagHelperLoweringPass
public void Render_BindToElementFallback_SpecifiesValueAndChangeEvent_BodyContent()
{
// Arrange
var component = CompileToComponent(@"
<div @bind-value=""@ParentValue"" @bind-value:event=""onchange"">
<span>@(42.ToString())</span>
</div>
@code {
public int ParentValue { get; set; } = 42;
}");
// Act
var frames = GetRenderTree(component);
// Assert
Assert.Collection(
frames,
frame => AssertFrame.Element(frame, "div", 7, 0),
frame => AssertFrame.Attribute(frame, "value", "42", 1),
frame => AssertFrame.Attribute(frame, "onchange", typeof(EventCallback), 2),
frame => AssertFrame.MarkupWhitespace(frame, 3),
frame => AssertFrame.Element(frame, "span", 2, 4),
frame => AssertFrame.Text(frame, "42", 5),
frame => AssertFrame.MarkupWhitespace(frame, 6));
}
public void SupportsCSharpExpressions()
{
// Arrange/Act
var component = CompileToComponent(@"
@(""Hello"")
@((object)null)
@(123)
@(new object())
");
// Assert
var frames = GetRenderTree(component);
Assert.Collection(frames,
frame => AssertFrame.Text(frame, "Hello", 0),
frame => AssertFrame.MarkupWhitespace(frame, 1),
frame => AssertFrame.TextWhitespace(frame, 2), // @((object)null)
frame => AssertFrame.MarkupWhitespace(frame, 3),
frame => AssertFrame.Text(frame, "123", 4),
frame => AssertFrame.MarkupWhitespace(frame, 5),
frame => AssertFrame.Text(frame, new object().ToString(), 6));
}
public void Render_BodyChildContent_Generic()
{
// Arrange
AdditionalSyntaxTrees.Add(RenderChildContentStringComponent);
var component = CompileToComponent(@"
<RenderChildContentString Value=""HI"">
<div>@context.ToLowerInvariant()</div>
</RenderChildContentString>");
// Act
var frames = GetRenderTree(component);
// Assert
Assert.Collection(
frames,
frame => AssertFrame.Component(frame, "Test.RenderChildContentString", 3, 0),
frame => AssertFrame.Attribute(frame, "Value", "HI", 1),
frame => AssertFrame.Attribute(frame, "ChildContent", 2),
frame => AssertFrame.MarkupWhitespace(frame, 3),
frame => AssertFrame.Element(frame, "div", 2, 4),
frame => AssertFrame.Text(frame, "hi", 5),
frame => AssertFrame.MarkupWhitespace(frame, 6));
}
public void Render_HtmlBlock_Integration()
{
// Arrange
AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Components;
namespace Test
{
public class MyComponent : ComponentBase
{
[Parameter]
public RenderFragment ChildContent { get; set; }
}
}
"));
var component = CompileToComponent(@"
<html>
<head><meta><meta></head>
<body>
<MyComponent>
<div><span></span><span></span></div>
<div>@(""hi"")</div>
<div><span></span><span></span></div>
<div></div>
<div>@(""hi"")</div>
<div></div>
</MyComponent>
</body>
</html>");
// Act
var frames = GetRenderTree(component);
// Assert: component frames are correct
Assert.Collection(
frames,
frame => AssertFrame.Element(frame, "html", 9, 0),
frame => AssertFrame.MarkupWhitespace(frame, 1),
frame => AssertFrame.Markup(frame, "<head><meta><meta></head>\n ", 2),
frame => AssertFrame.Element(frame, "body", 5, 3),
frame => AssertFrame.MarkupWhitespace(frame, 4),
frame => AssertFrame.Component(frame, "Test.MyComponent", 2, 5),
frame => AssertFrame.Attribute(frame, "ChildContent", 6),
frame => AssertFrame.MarkupWhitespace(frame, 16),
frame => AssertFrame.MarkupWhitespace(frame, 17));
// Assert: Captured ChildContent frames are correct
var childFrames = GetFrames((RenderFragment)frames[6].AttributeValue);
Assert.Collection(
childFrames.AsEnumerable(),
frame => AssertFrame.MarkupWhitespace(frame, 7),
frame => AssertFrame.Markup(frame, "<div><span></span><span></span></div>\n ", 8),
frame => AssertFrame.Element(frame, "div", 2, 9),
frame => AssertFrame.Text(frame, "hi", 10),
frame => AssertFrame.MarkupWhitespace(frame, 11),
frame => AssertFrame.Markup(frame, "<div><span></span><span></span></div>\n <div></div>\n ", 12),
frame => AssertFrame.Element(frame, "div", 2, 13),
frame => AssertFrame.Text(frame, "hi", 14),
frame => AssertFrame.Markup(frame, "\n <div></div>\n ", 15));
}