// 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 System.Linq;
using Xunit;
namespace Microsoft.AspNetCore.Blazor.Build.Test
{
public class IndexHtmlWriterTest
{
[Fact]
public void InjectsScriptTagReferencingAssemblyAndDependencies()
{
// Arrange
var htmlTemplatePrefix = @"
Hello
Some text
";
var htmlTemplateSuffix = @"
";
var htmlTemplate =
$@"{htmlTemplatePrefix}
{htmlTemplateSuffix}";
var assemblyReferences = new string[] { "System.Abc.dll", "MyApp.ClassLib.dll", };
var jsReferences = new string[] { "some/file.js", "another.js" };
var cssReferences = new string[] { "my/styles.css" };
var instance = IndexHtmlWriter.GetIndexHtmlContents(
htmlTemplate,
"MyApp.Entrypoint",
"MyNamespace.MyType::MyMethod",
assemblyReferences,
jsReferences,
cssReferences,
linkerEnabled: true);
// 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("" + scriptTagText + "");
var scriptElems = parsedHtml.Body.QuerySelectorAll("script");
var linkElems = parsedHtml.Body.QuerySelectorAll("link");
var scriptElem = scriptElems[0];
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);
Assert.Equal("true", scriptElem.Attributes["linker-enabled"].Value);
// Assert: Also contains script tags referencing JS files
Assert.Equal(
scriptElems.Skip(1).Select(tag => tag.GetAttribute("src")),
jsReferences);
// Assert: Also contains link tags referencing CSS files
Assert.Equal(
linkElems.Select(tag => tag.GetAttribute("href")),
cssReferences);
}
[Fact]
public void SuppliesHtmlTemplateUnchangedIfNoBootScriptPresent()
{
// Arrange
var htmlTemplate = "Hello
Some text";
var assemblyReferences = new string[] { "System.Abc.dll", "MyApp.ClassLib.dll" };
var jsReferences = new string[] { "some/file.js", "another.js" };
var cssReferences = new string[] { "my/styles.css" };
var content = IndexHtmlWriter.GetIndexHtmlContents(
htmlTemplate, "MyApp.Entrypoint", "MyNamespace.MyType::MyMethod", assemblyReferences, jsReferences, cssReferences, linkerEnabled: true);
// Assert
Assert.Equal(htmlTemplate, content);
}
}
}