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ReferenceAssemblyResolverTests.cs
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ReferenceAssemblyResolverTests.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Collections.Generic;
using System.IO;
using FluentAssertions;
using Microsoft.Extensions.DependencyModel.Resolution;
using Xunit;
using F = Microsoft.Extensions.DependencyModel.Tests.TestLibraryFactory;
namespace Microsoft.Extensions.DependencyModel.Tests
{
public class ReferenceAssemblyResolverTests
{
private static string ReferencePath = Path.Combine("reference", "assembly", "directory", "location");
[Fact]
public void SkipsNonReferenceAssembly()
{
var resolver = new ReferenceAssemblyPathResolver();
var library = F.Create(
F.PackageType);
var result = resolver.TryResolveAssemblyPaths(library, null);
result.Should().BeFalse();
}
[Fact]
public void UsesEnvironmentVariableForDefaultPath()
{
var environment = EnvironmentMockBuilder.Create()
.SetIsWindows(true)
.AddVariable("DOTNET_REFERENCE_ASSEMBLIES_PATH", ReferencePath)
.Build();
var result = ReferenceAssemblyPathResolver.GetDefaultReferenceAssembliesPath(FileSystemMockBuilder.Empty, environment);
result.Should().Be(ReferencePath);
}
[Fact]
public void LooksOnlyOnEnvironmentVariableOnNonWindows()
{
var result = ReferenceAssemblyPathResolver.GetDefaultReferenceAssembliesPath(FileSystemMockBuilder.Empty, EnvironmentMockBuilder.Empty);
result.Should().BeNull();
}
[Fact]
public void ReturnsProgramFiles86AsDefaultLocationOnWin64()
{
var environment = EnvironmentMockBuilder.Create()
.SetIsWindows(true)
.AddVariable("ProgramFiles(x86)", "Program Files (x86)")
.AddVariable("ProgramFiles", "Program Files")
.Build();
var result = ReferenceAssemblyPathResolver.GetDefaultReferenceAssembliesPath(FileSystemMockBuilder.Empty, environment);
result.Should().Be(Path.Combine("Program Files (x86)", "Reference Assemblies", "Microsoft", "Framework"));
}
[Fact]
public void ReturnsProgramFilesAsDefaultLocationOnWin32()
{
var environment = EnvironmentMockBuilder.Create()
.SetIsWindows(true)
.AddVariable("ProgramFiles", "Program Files")
.Build();
var result = ReferenceAssemblyPathResolver.GetDefaultReferenceAssembliesPath(FileSystemMockBuilder.Empty, environment);
result.Should().Be(Path.Combine("Program Files", "Reference Assemblies", "Microsoft", "Framework"));
}
[Fact]
public void ReturnNet20PathAsFallbackOnWindows()
{
var net20Path = Path.Combine("Windows", "Microsoft.NET", "Framework", "v2.0.50727");
var fileSystem = FileSystemMockBuilder.Create()
.AddFiles(net20Path, "some.dll")
.Build();
var environment = EnvironmentMockBuilder.Create()
.SetIsWindows(true)
.AddVariable("WINDIR", "Windows")
.Build();
var result = ReferenceAssemblyPathResolver.GetFallbackSearchPaths(fileSystem, environment);
result.Should().Contain(net20Path);
}
[Fact]
public void ChecksForRelativePathUnderDefaultLocation()
{
var fileSystem = FileSystemMockBuilder.Create()
.AddFiles(ReferencePath, F.DefaultAssemblyPath)
.Build();
var library = F.Create(libraryType: F.ReferenceAssemblyType);
var assemblies = new List<string>();
var resolver = new ReferenceAssemblyPathResolver(fileSystem, ReferencePath, new string[] { });
var result = resolver.TryResolveAssemblyPaths(library, assemblies);
result.Should().BeTrue();
assemblies.Should().Contain(Path.Combine(ReferencePath, F.DefaultAssemblyPath));
}
[Fact]
public void ChecksForFileNameInFallbackLocation()
{
var fileSystem = FileSystemMockBuilder.Create()
.AddFiles(ReferencePath, F.DefaultAssembly)
.Build();
var library = F.Create(libraryType: F.ReferenceAssemblyType);
var assemblies = new List<string>();
var resolver = new ReferenceAssemblyPathResolver(fileSystem, null, new string[] { ReferencePath });
var result = resolver.TryResolveAssemblyPaths(library, assemblies);
result.Should().BeTrue();
assemblies.Should().Contain(Path.Combine(ReferencePath, F.DefaultAssembly));
}
[Fact]
public void ShouldResolveAll()
{
var fileSystem = FileSystemMockBuilder.Create()
.AddFiles(ReferencePath, F.DefaultAssembly)
.Build();
var library = F.Create(libraryType: F.ReferenceAssemblyType, assemblies: F.TwoAssemblies);
var assemblies = new List<string>();
var resolver = new ReferenceAssemblyPathResolver(fileSystem, null, new string[] { ReferencePath });
var exception = Assert.Throws<InvalidOperationException>(() => resolver.TryResolveAssemblyPaths(library, assemblies));
exception.Message.Should()
.Contain(F.SecondAssemblyPath)
.And.Contain(library.Name);
}
}
}