dotnet-installer/test/dotnet-build.Tests/BuildProjectToProjectTests.cs
2016-02-10 15:35:27 -08:00

110 lines
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4 KiB
C#

// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using FluentAssertions;
using Microsoft.DotNet.Cli.Utils;
using Microsoft.DotNet.Tools.Test.Utilities;
using Xunit;
namespace Microsoft.DotNet.Tools.Builder.Tests
{
public class ProjectToProjectDependenciesIncrementalTest : IncrementalTestBase
{
private readonly string[] _projects = new[] { "L0", "L11", "L12", "L21", "L22" };
public ProjectToProjectDependenciesIncrementalTest() : base(
Path.Combine(AppContext.BaseDirectory, "TestAssets", "TestProjects", "TestProjectToProjectDependencies"),
"L0",
"L0 L11 L12 L22 L21 L12 L22 " + Environment.NewLine)
{
}
[Theory,
InlineData("L0", new[] { "L0" }),
InlineData("L11", new[] { "L0", "L11" }),
InlineData("L12", new[] { "L0", "L11", "L12" }),
InlineData("L22", new[] { "L0", "L11", "L12", "L22" }),
InlineData("L21", new[] { "L0", "L11", "L21" })
]
public void TestIncrementalBuildOfDependencyGraph(string projectToTouch, string[] expectedRebuiltProjects)
{
// first clean build; all projects required compilation
var result1 = BuildProject();
AssertRebuilt(result1, _projects);
// second build; nothing changed; no project required compilation
var result2 = BuildProject();
AssertRebuilt(result2, Array.Empty<string>());
//modify the source code of a project
TouchSourcesOfProject(projectToTouch);
// third build; all projects on the paths from touched project to root project need to be rebuilt
var result3 = BuildProject();
AssertRebuilt(result3, expectedRebuiltProjects);
}
[Fact]
public void TestNoDependencyFlag()
{
var dependencies = new[] { "L11", "L12", "L21", "L22" };
// first clean build; all projects required compilation
var result1 = BuildProject();
AssertRebuilt(result1, _projects);
// modify the source code of a leaf dependency
TouchSourcesOfProject("L22");
// second build with no dependencies and no incremental; only the root rebuilds
var result2 = BuildProject(noDependencies: true, noIncremental: true);
result2.Should().StdOutMatchPattern("Compiling.*L0.*");
AssertResultDoesNotContainStrings(result2, dependencies);
// third build with no dependencies but incremental; nothing rebuilds
var result3 = BuildProject(noDependencies: true);
result3.Should().HaveSkippedProjectCompilation("L0");
AssertResultDoesNotContainStrings(result3, dependencies);
}
private static void AssertResultDoesNotContainStrings(CommandResult commandResult, string[] strings)
{
foreach (var s in strings)
{
commandResult.StdOut.Should().NotContain(s);
}
}
// compute A - B
private T[] SetDifference<T>(T[] A, T[] B)
{
var setA = new HashSet<T>(A);
setA.ExceptWith(B);
return setA.ToArray();
}
private void AssertRebuilt(CommandResult buildResult, string[] expectedRebuilt)
{
foreach (var rebuiltProject in expectedRebuilt)
{
buildResult.Should().HaveCompiledProject(rebuiltProject);
}
foreach (var skippedProject in SetDifference(_projects, expectedRebuilt))
{
buildResult.Should().HaveSkippedProjectCompilation(skippedProject);
}
}
protected override string GetProjectDirectory(string projectName)
{
return Path.Combine(TempProjectRoot.Path, "src", projectName);
}
}
}