public void SkipsInstallation()
{
// Setup
_fileSystemMock
.Setup(x => x.DirectoryExists(It.IsAny <string>()))
.Returns(true);
var collection = CreateMockServiceCollection();
_task.ConfigureServices(collection);
// Act
using var provider = collection.BuildServiceProvider();
_task.InvokeExecute(provider).Should().BeTrue();
// Verify
_commandFactoryMock
.Verify(
x => x.Create(
It.Is <string>(dotnet => dotnet == _dotnetPath),
It.Is <IEnumerable <string> >(args => args.Count() == _expectedArgs.Count() && args.All(y => _expectedArgs.Contains(y)))),
Times.Never);
_commandMock.Verify(x => x.Execute(), Times.Never);
}
public async Task InstallsInParallelWithRealMutex()
{
// Setup
var fileSystemMock1 = new Mock <IFileSystem>();
fileSystemMock1
.Setup(x => x.DirectoryExists(It.IsAny <string>()))
.Returns(false);
var fileSystemMock2 = new Mock <IFileSystem>();
fileSystemMock2
.Setup(x => x.DirectoryExists(It.IsAny <string>()))
.Returns(true);
var helpers = new Helpers();
var hangingCommandCalled = new TaskCompletionSource <bool>();
var dotnetToolInstalled = new TaskCompletionSource <bool>();
var hangingCommand = new Mock <ICommand>();
hangingCommand
.Setup(x => x.Execute())
.Callback(() =>
{
hangingCommandCalled.SetResult(true);
dotnetToolInstalled.Task.GetAwaiter().GetResult();
})
.Returns(new CommandResult(new ProcessStartInfo(), 0, "Tool installed", null));
var hangingCommandFactoryMock = new Mock <ICommandFactory>();
hangingCommandFactoryMock
.Setup(x => x.Create(
It.Is <string>(s => s == _dotnetPath),
It.Is <IEnumerable <string> >(args => args.All(y => _expectedArgs.Contains(y)))))
.Returns(hangingCommand.Object)
.Verifiable();
var collection1 = new ServiceCollection();
collection1.AddSingleton(hangingCommandFactoryMock.Object);
collection1.AddSingleton(fileSystemMock1.Object);
collection1.AddTransient <IHelpers, Helpers>();
var collection2 = new ServiceCollection();
collection2.AddSingleton(_commandFactoryMock.Object);
collection2.AddSingleton(fileSystemMock2.Object);
collection2.AddTransient <IHelpers, Helpers>();
var task1 = new InstallDotNetTool()
{
DestinationPath = InstallPath,
Name = ToolName,
Version = ToolVersion,
BuildEngine = new MockBuildEngine(),
};
var task2 = new InstallDotNetTool()
{
DestinationPath = InstallPath,
Name = ToolName,
Version = ToolVersion,
BuildEngine = new MockBuildEngine(),
};
// Act
using var provider1 = collection1.BuildServiceProvider();
using var provider2 = collection2.BuildServiceProvider();
var installationTask = Task.Run(() => task1.InvokeExecute(provider1).Should().BeTrue());
// Let's wait for the first `dotnet tool install` to be called (it will stay spinning)
await hangingCommandCalled.Task;
var skipTask = Task.Run(() => task2.InvokeExecute(provider2).Should().BeTrue());
// The first command must have been executed, let's verify the parameters
hangingCommandFactoryMock
.Verify(
x => x.Create(
It.Is <string>(dotnet => dotnet == _dotnetPath),
It.Is <IEnumerable <string> >(args => args.Count() == _expectedArgs.Count() && args.All(y => _expectedArgs.Contains(y)))),
Times.Once);
// The other command is waiting on the Mutex now
skipTask.IsCompleted.Should().BeFalse();
_commandFactoryMock
.Verify(
x => x.Create(
It.Is <string>(dotnet => dotnet == _dotnetPath),
It.Is <IEnumerable <string> >(args => args.Count() == _expectedArgs.Count() && args.All(y => _expectedArgs.Contains(y)))),
Times.Never);
// We now let `dotnet tool install` run to completion
dotnetToolInstalled.SetResult(true);
// Let's give the installation task time to evaluate the command result
// Let's give the skip task get its own Mutex and verify existence of the installation
await Task.WhenAll(installationTask, skipTask);
// Verify
_commandFactoryMock
.Verify(
x => x.Create(
It.Is <string>(dotnet => dotnet == _dotnetPath),
It.Is <IEnumerable <string> >(args => args.Count() == _expectedArgs.Count() && args.All(y => _expectedArgs.Contains(y)))),
Times.Never);
task1.ToolPath.Should().Be(task2.ToolPath);
task1.ToolPath.Should().Be(s_installedPath);
}