165 lines
6.0 KiB
C#
165 lines
6.0 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using Microsoft.Extensions.FileProviders;
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using System.IO;
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using System.Linq;
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using Xunit;
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using System;
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using AngleSharp.Parser.Html;
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using Microsoft.AspNetCore.Blazor.Build.Core.FileSystem;
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namespace Microsoft.AspNetCore.Blazor.Server.Test
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{
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public class IndexHtmlFileProviderTest
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{
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[Fact]
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public void SuppliesNoIndexHtmlFileGivenNoTemplate()
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{
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// Arrange
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var instance = new IndexHtmlFileProvider(
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null, "fakeassembly", "MyNamespace.MyType::MyMethod", Enumerable.Empty<IFileInfo>());
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// Act
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var file = instance.GetFileInfo("/index.html");
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// Assert
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Assert.False(file.Exists);
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}
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[Fact]
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public void SuppliesIndexHtmlFileGivenTemplate()
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{
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// Arrange
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var htmlTemplate = "test";
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var instance = new IndexHtmlFileProvider(
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htmlTemplate, "fakeassembly", "MyNamespace.MyType::MyMethod", Enumerable.Empty<IFileInfo>());
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// Act
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var file = instance.GetFileInfo("/index.html");
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// Assert
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Assert.True(file.Exists);
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Assert.False(file.IsDirectory);
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Assert.Equal("/index.html", file.PhysicalPath);
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Assert.Equal("index.html", file.Name);
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Assert.Equal(htmlTemplate, ReadString(file));
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}
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[Fact]
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public void RootDirectoryContainsOnlyIndexHtml()
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{
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// Arrange
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var htmlTemplate = "test";
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var instance = new IndexHtmlFileProvider(
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htmlTemplate, "fakeassembly", "MyNamespace.MyType::MyMethod", Enumerable.Empty<IFileInfo>());
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// Act
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var directory = instance.GetDirectoryContents(string.Empty);
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// Assert
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Assert.True(directory.Exists);
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Assert.Collection(directory,
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item => Assert.Equal("/index.html", item.PhysicalPath));
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}
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[Fact]
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public void InjectsScriptTagReferencingAssemblyAndDependencies()
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{
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// Arrange
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var htmlTemplatePrefix = @"
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<html>
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<body>
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<h1>Hello</h1>
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Some text
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<script>alert(1)</script>";
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var htmlTemplateSuffix = @"
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</body>
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</html>";
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var htmlTemplate =
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$@"{htmlTemplatePrefix}
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<script type='blazor-boot' custom1 custom2=""value"">some text that should be removed</script>
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{htmlTemplateSuffix}";
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var dependencies = new IFileInfo[]
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{
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new TestFileInfo("System.Abc.dll"),
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new TestFileInfo("MyApp.ClassLib.dll"),
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};
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var instance = new IndexHtmlFileProvider(
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htmlTemplate, "MyApp.Entrypoint", "MyNamespace.MyType::MyMethod", dependencies);
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// Act
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var file = instance.GetFileInfo("/index.html");
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var fileContents = ReadString(file);
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// Assert: Start and end is not modified (including formatting)
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Assert.StartsWith(htmlTemplatePrefix, fileContents);
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Assert.EndsWith(htmlTemplateSuffix, fileContents);
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// Assert: Boot tag is correct
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var scriptTagText = fileContents.Substring(htmlTemplatePrefix.Length, fileContents.Length - htmlTemplatePrefix.Length - htmlTemplateSuffix.Length);
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var parsedHtml = new HtmlParser().Parse("<html><body>" + scriptTagText + "</body></html>");
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var scriptElem = parsedHtml.Body.QuerySelector("script");
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Assert.False(scriptElem.HasChildNodes);
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Assert.Equal("_framework/blazor.js", scriptElem.GetAttribute("src"));
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Assert.Equal("MyApp.Entrypoint.dll", scriptElem.GetAttribute("main"));
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Assert.Equal("MyNamespace.MyType::MyMethod", scriptElem.GetAttribute("entrypoint"));
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Assert.Equal("System.Abc.dll,MyApp.ClassLib.dll", scriptElem.GetAttribute("references"));
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Assert.False(scriptElem.HasAttribute("type"));
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Assert.Equal(string.Empty, scriptElem.Attributes["custom1"].Value);
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Assert.Equal("value", scriptElem.Attributes["custom2"].Value);
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}
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[Fact]
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public void SuppliesHtmlTemplateUnchangedIfNoBootScriptPresent()
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{
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// Arrange
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var htmlTemplate = "<!DOCTYPE html><html><body><h1 style='color:red'>Hello</h1>Some text<script type='irrelevant'>blah</script></body></html>";
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var dependencies = new IFileInfo[]
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{
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new TestFileInfo("System.Abc.dll"),
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new TestFileInfo("MyApp.ClassLib.dll"),
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};
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var instance = new IndexHtmlFileProvider(
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htmlTemplate, "MyApp.Entrypoint", "MyNamespace.MyType::MyMethod", dependencies);
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// Act
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var file = instance.GetFileInfo("/index.html");
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// Assert
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Assert.Equal(htmlTemplate, ReadString(file));
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}
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private static string ReadString(IFileInfo file)
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{
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using (var stream = file.CreateReadStream())
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using (var sr = new StreamReader(stream))
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{
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return sr.ReadToEnd();
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}
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}
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class TestFileInfo : IFileInfo
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{
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public TestFileInfo(string physicalPath)
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{
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PhysicalPath = physicalPath;
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}
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public bool Exists => true;
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public long Length => throw new NotImplementedException();
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public string PhysicalPath { get; }
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public string Name => Path.GetFileName(PhysicalPath);
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public DateTimeOffset LastModified => throw new NotImplementedException();
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public bool IsDirectory => false;
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public Stream CreateReadStream() => throw new NotImplementedException();
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}
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}
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}
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