// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using Xunit;

namespace Microsoft.AspNetCore.Blazor.Build.Test
{
    public class RuntimeCodeGenerationTest : RazorBaselineIntegrationTestBase
    {
        internal override bool UseTwoPhaseCompilation => true;

        [Fact]
        public void ChildComponent_Simple()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent />");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void ChildComponent_WithParameters()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class SomeType
    {
    }

    public class MyComponent : BlazorComponent
    {
        [Parameter] int IntProperty { get; set; }
        [Parameter] bool BoolProperty { get; set; }
        [Parameter] string StringProperty { get; set; }
        [Parameter] SomeType ObjectProperty { get; set; }
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent 
    IntProperty=""123""
    BoolProperty=""true""
    StringProperty=""My string""
    ObjectProperty=""new SomeType()""/>");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void ChildComponent_WithExplicitStringParameter()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
        [Parameter]
        string StringProperty { get; set; }
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent StringProperty=""@(42.ToString())"" />");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void ChildComponent_WithNonPropertyAttributes()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent some-attribute=""foo"" another-attribute=""@(43.ToString())""/>");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }


        [Fact]
        public void ChildComponent_WithLambdaEventHandler()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using System;
using Microsoft.AspNetCore.Blazor;
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
        [Parameter]
        Action<UIEventArgs> OnClick { get; set; }
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent OnClick=""@(e => { Increment(); })""/>

@functions {
    private int counter;
    private void Increment() {
        counter++;
    }
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void ChildComponent_WithExplicitEventHandler()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using System;
using Microsoft.AspNetCore.Blazor;
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
        [Parameter]
        Action<UIEventArgs> OnClick { get; set; }
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
@using Microsoft.AspNetCore.Blazor
<MyComponent OnClick=""@Increment""/>

@functions {
    private int counter;
    private void Increment(UIEventArgs e) {
        counter++;
    }
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void ChildComponent_WithChildContent()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor;
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
        [Parameter]
        string MyAttr { get; set; }

        [Parameter]
        RenderFragment ChildContent { get; set; }
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent MyAttr=""abc"">Some text<some-child a='1'>Nested text</some-child></MyComponent>");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void ChildComponent_WithPageDirective()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
@page ""/MyPage""
@page ""/AnotherRoute/{id}""
<MyComponent />");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void EventHandler_OnElement_WithString()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
<input onclick=""foo"" />");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void EventHandler_OnElement_WithNoArgsLambdaDelegate()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@using Microsoft.AspNetCore.Blazor
<input onclick=""@(() => { })"" />");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void EventHandler_OnElement_WithEventArgsLambdaDelegate()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@using Microsoft.AspNetCore.Blazor
<input onclick=""@(x => { })"" />");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void EventHandler_OnElement_WithNoArgMethodGroup()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@using Microsoft.AspNetCore.Blazor
<input onclick=""@OnClick"" />
@functions {
    void OnClick() {
    }
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void EventHandler_OnElement_WithEventArgsMethodGroup()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@using Microsoft.AspNetCore.Blazor
<input onclick=""@OnClick"" />
@functions {
    void OnClick(UIMouseEventArgs e) {
    }
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void EventHandler_OnElement_ArbitraryEventName_WithEventArgsMethodGroup()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@using Microsoft.AspNetCore.Blazor
<input onclick=""@OnClick"" />
@functions {
    void OnClick(UIEventArgs e) {
    }
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void AsyncEventHandler_OnElement_Action_MethodGroup()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@using System.Threading.Tasks
@using Microsoft.AspNetCore.Blazor
<input onclick=""@OnClick"" />
@functions {
    Task OnClick() 
    {
        return Task.CompletedTask;
    }
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void AsyncEventHandler_OnElement_ActionEventArgs_MethodGroup()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@using System.Threading.Tasks
@using Microsoft.AspNetCore.Blazor
<input onclick=""@OnClick"" />
@functions {
    Task OnClick(UIMouseEventArgs e) 
    {
        return Task.CompletedTask;
    }
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void AsyncEventHandler_OnElement_Action_Lambda()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@using System.Threading.Tasks
@using Microsoft.AspNetCore.Blazor
<input onclick=""async (e) => await Task.Delay(10)"" />
");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void AsyncEventHandler_OnElement_ActionEventArgs_Lambda()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@using System.Threading.Tasks
@using Microsoft.AspNetCore.Blazor
<input onclick=""async (e) => await Task.Delay(10)"" />
");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void ScriptTag_WithErrorSuppressed()
        {
            // Arrange/Act
            var generated = CompileToCSharp(@"
<div>
    <script src='some/url.js' anotherattribute suppress-error='BL9992'>
        some text
        some more text
    </script>
</div>
");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void LeadingWhiteSpace_WithDirective()
        {
            // Arrange/Act
            var generated = CompileToCSharp(@"

@using System

<h1>Hello</h1>");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void LeadingWhiteSpace_WithCSharpExpression()
        {
            // Arrange/Act
            var generated = CompileToCSharp(@"
   
@(""My value"")

<h1>Hello</h1>");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void LeadingWhiteSpace_WithComponent()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class SomeOtherComponent : BlazorComponent
    {
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
   
<SomeOtherComponent />

<h1>Hello</h1>");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void TrailingWhiteSpace_WithDirective()
        {
            // Arrange/Act
            var generated = CompileToCSharp(@"
<h1>Hello</h1>

@page ""/my/url""

");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void TrailingWhiteSpace_WithCSharpExpression()
        {
            // Arrange/Act
            var generated = CompileToCSharp(@"
<h1>Hello</h1>

@(""My value"")

");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void TrailingWhiteSpace_WithComponent()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class SomeOtherComponent : BlazorComponent
    {
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<h1>Hello</h1>

<SomeOtherComponent />

");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact] // https://github.com/aspnet/Blazor/issues/597
        public void Regression_597()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class Counter : BlazorComponent
    {
        public int Count { get; set; }
    }
}
"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<Counter bind-v=""y"" />
@functions {
    string y = null;
}
");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BindToComponent_SpecifiesValue_WithMatchingProperties()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using System;
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
        [Parameter]
        int Value { get; set; }

        [Parameter]
        Action<int> ValueChanged { get; set; }
    }
}"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent bind-Value=""ParentValue"" />
@functions {
    public int ParentValue { get; set; } = 42;
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BindToComponent_SpecifiesValue_WithoutMatchingProperties()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using System;
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent, IComponent
    {
        void IComponent.SetParameters(ParameterCollection parameters)
        {
        }
    }
}"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent bind-Value=""ParentValue"" />
@functions {
    public int ParentValue { get; set; } = 42;
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BindToComponent_SpecifiesValueAndChangeEvent_WithMatchingProperties()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using System;
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
        [Parameter]
        int Value { get; set; }

        [Parameter]
        Action<int> OnChanged { get; set; }
    }
}"));
            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent bind-Value-OnChanged=""ParentValue"" />
@functions {
    public int ParentValue { get; set; } = 42;
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BindToComponent_SpecifiesValueAndChangeEvent_WithoutMatchingProperties()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using System;
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent, IComponent
    {
        void IComponent.SetParameters(ParameterCollection parameters)
        {
        }
    }
}"));

            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent bind-Value-OnChanged=""ParentValue"" />
@functions {
    public int ParentValue { get; set; } = 42;
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BindToElement_WritesAttributes()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using System;
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    [BindElement(""div"", null, ""myvalue"", ""myevent"")]
    public static class BindAttributes
    {
    }
}"));

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<div bind=""@ParentValue"" />
@functions {
    public string ParentValue { get; set; } = ""hi"";
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BindToElementWithSuffix_WritesAttributes()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using System;
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    [BindElement(""div"", ""value"", ""myvalue"", ""myevent"")]
    public static class BindAttributes
    {
    }
}"));
            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<div bind-value=""@ParentValue"" />
@functions {
    public string ParentValue { get; set; } = ""hi"";
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BuiltIn_BindToInputWithoutType_WritesAttributes()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<input bind=""@ParentValue"" />
@functions {
    public int ParentValue { get; set; } = 42;
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BuiltIn_BindToInputText_WithFormat_WritesAttributes()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<input type=""text"" bind=""@CurrentDate"" format-value=""MM/dd/yyyy""/>
@functions {
    public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BuiltIn_BindToInputText_WithFormatFromProperty_WritesAttributes()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<input type=""text"" bind=""@CurrentDate"" format-value=""@Format""/>
@functions {
    public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);

    public string Format { get; set; } = ""MM/dd/yyyy"";
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BuiltIn_BindToInputText_WritesAttributes()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<input type=""text"" bind=""@ParentValue"" />
@functions {
    public int ParentValue { get; set; } = 42;
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BuiltIn_BindToInputCheckbox_WritesAttributes()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<input type=""checkbox"" bind=""@Enabled"" />
@functions {
    public bool Enabled { get; set; }
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BindToElementFallback_WritesAttributes()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<input type=""text"" bind-value-onchange=""@ParentValue"" />
@functions {
    public int ParentValue { get; set; } = 42;
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void BindToElementFallback_WithFormat_WritesAttributes()
        {
            // Arrange

            // Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<input type=""text"" bind-value-onchange=""@CurrentDate"" format-value=""MM/dd"" />
@functions {
    public DateTime CurrentDate { get; set; } = new DateTime(2018, 1, 1);
}");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void Element_WithRef()
        {
            // Arrange/Act
            var generated = CompileToCSharp(@"
<elem attributebefore=""before"" ref=""myElem"" attributeafter=""after"">Hello</elem>

@functions {
    private Microsoft.AspNetCore.Blazor.ElementRef myElem;
}
");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void Component_WithRef()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
    }
}
"));

            // Arrange/Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent ParamBefore=""before"" ref=""myInstance"" ParamAfter=""after"" />

@functions {
    private Test.MyComponent myInstance;
}
");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }

        [Fact]
        public void Component_WithRef_WithChildContent()
        {
            // Arrange
            AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Blazor.Components;

namespace Test
{
    public class MyComponent : BlazorComponent
    {
    }
}
"));

            // Arrange/Act
            var generated = CompileToCSharp(@"
@addTagHelper *, TestAssembly
<MyComponent ref=""myInstance"" SomeProp=""val"">
    Some <el>further</el> content
</MyComponent>

@functions {
    private Test.MyComponent myInstance;
}
");

            // Assert
            AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
            AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
            CompileToAssembly(generated);
        }
    }
}