aspnetcore/test/Microsoft.AspNetCore.Blazor.../IndexHtmlWriterTest.cs

75 lines
3.1 KiB
C#

// 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 AngleSharp.Parser.Html;
using Xunit;
namespace Microsoft.AspNetCore.Blazor.Build.Test
{
public class IndexHtmlWriterTest
{
[Fact]
public void InjectsScriptTagReferencingAssemblyAndDependencies()
{
// Arrange
var htmlTemplatePrefix = @"
<html>
<body>
<h1>Hello</h1>
Some text
<script>alert(1)</script>";
var htmlTemplateSuffix = @"
</body>
</html>";
var htmlTemplate =
$@"{htmlTemplatePrefix}
<script type='blazor-boot' custom1 custom2=""value"">some text that should be removed</script>
{htmlTemplateSuffix}";
var dependencies = new string[]
{
"System.Abc.dll",
"MyApp.ClassLib.dll",
};
var instance = IndexHtmlWriter.GetIndexHtmlContents(
htmlTemplate,
"MyApp.Entrypoint",
"MyNamespace.MyType::MyMethod", dependencies);
// Act & Assert: Start and end is not modified (including formatting)
Assert.StartsWith(htmlTemplatePrefix, instance);
Assert.EndsWith(htmlTemplateSuffix, instance);
// Assert: Boot tag is correct
var scriptTagText = instance.Substring(htmlTemplatePrefix.Length, instance.Length - htmlTemplatePrefix.Length - htmlTemplateSuffix.Length);
var parsedHtml = new HtmlParser().Parse("<html><body>" + scriptTagText + "</body></html>");
var scriptElem = parsedHtml.Body.QuerySelector("script");
Assert.False(scriptElem.HasChildNodes);
Assert.Equal("_framework/blazor.js", scriptElem.GetAttribute("src"));
Assert.Equal("MyApp.Entrypoint.dll", scriptElem.GetAttribute("main"));
Assert.Equal("MyNamespace.MyType::MyMethod", scriptElem.GetAttribute("entrypoint"));
Assert.Equal("System.Abc.dll,MyApp.ClassLib.dll", scriptElem.GetAttribute("references"));
Assert.False(scriptElem.HasAttribute("type"));
Assert.Equal(string.Empty, scriptElem.Attributes["custom1"].Value);
Assert.Equal("value", scriptElem.Attributes["custom2"].Value);
}
[Fact]
public void SuppliesHtmlTemplateUnchangedIfNoBootScriptPresent()
{
// Arrange
var htmlTemplate = "<!DOCTYPE html><html><body><h1 style='color:red'>Hello</h1>Some text<script type='irrelevant'>blah</script></body></html>";
var dependencies = new string[]
{
"System.Abc.dll",
"MyApp.ClassLib.dll",
};
var content = IndexHtmlWriter.GetIndexHtmlContents(
htmlTemplate, "MyApp.Entrypoint", "MyNamespace.MyType::MyMethod", dependencies);
// Assert
Assert.Equal(htmlTemplate, content);
}
}
}