aspnetcore/test/Microsoft.Blazor.Build.Test/IndexHtmlFileProviderTest.cs

125 lines
4.0 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 Microsoft.Extensions.FileProviders;
using System.IO;
using System.Linq;
using Xunit;
using System;
using AngleSharp.Parser.Html;
using Microsoft.Blazor.BuildTools.Core.FileSystem;
namespace Microsoft.Blazor.Server.Test
{
public class IndexHtmlFileProviderTest
{
[Fact]
public void SuppliesNoIndexHtmlFileGivenNoTemplate()
{
// Arrange
var instance = new IndexHtmlFileProvider(
null, "fakeassembly", Enumerable.Empty<IFileInfo>());
// Act
var file = instance.GetFileInfo("/index.html");
// Assert
Assert.False(file.Exists);
}
[Fact]
public void SuppliesIndexHtmlFileGivenTemplate()
{
// Arrange
var htmlTemplate = "test";
var instance = new IndexHtmlFileProvider(
htmlTemplate, "fakeassembly", Enumerable.Empty<IFileInfo>());
// Act
var file = instance.GetFileInfo("/index.html");
// Assert
Assert.True(file.Exists);
Assert.False(file.IsDirectory);
Assert.Equal("/index.html", file.PhysicalPath);
Assert.Equal("index.html", file.Name);
Assert.Equal(htmlTemplate, ReadString(file));
Assert.Equal(htmlTemplate.Length, file.Length);
}
[Fact]
public void RootDirectoryContainsOnlyIndexHtml()
{
// Arrange
var htmlTemplate = "test";
var instance = new IndexHtmlFileProvider(
htmlTemplate, "fakeassembly", Enumerable.Empty<IFileInfo>());
// Act
var directory = instance.GetDirectoryContents(string.Empty);
// Assert
Assert.True(directory.Exists);
Assert.Collection(directory,
item => Assert.Equal("/index.html", item.PhysicalPath));
}
[Fact]
public void InsertsScriptTagReferencingAssemblyAndDependencies()
{
// Arrange
var htmlTemplate = "<html><body>Hello</body></html>";
var dependencies = new IFileInfo[]
{
new TestFileInfo("System.Abc.dll"),
new TestFileInfo("MyApp.ClassLib.dll"),
};
var instance = new IndexHtmlFileProvider(
htmlTemplate, "MyApp.Entrypoint", dependencies);
// Act
var file = instance.GetFileInfo("/index.html");
var parsedHtml = new HtmlParser().Parse(ReadString(file));
var scriptElem = parsedHtml.Body.LastElementChild;
// Assert
Assert.Equal("script", scriptElem.TagName.ToLowerInvariant());
Assert.False(scriptElem.HasChildNodes);
Assert.Equal("/_framework/blazor.js", scriptElem.GetAttribute("src"));
Assert.Equal("MyApp.Entrypoint.dll", scriptElem.GetAttribute("main"));
Assert.Equal("System.Abc.dll,MyApp.ClassLib.dll", scriptElem.GetAttribute("references"));
}
private static string ReadString(IFileInfo file)
{
using (var stream = file.CreateReadStream())
using (var sr = new StreamReader(stream))
{
return sr.ReadToEnd();
}
}
class TestFileInfo : IFileInfo
{
public TestFileInfo(string physicalPath)
{
PhysicalPath = physicalPath;
}
public bool Exists => true;
public long Length => throw new NotImplementedException();
public string PhysicalPath { get; }
public string Name => Path.GetFileName(PhysicalPath);
public DateTimeOffset LastModified => throw new NotImplementedException();
public bool IsDirectory => false;
public Stream CreateReadStream() => throw new NotImplementedException();
}
}
}