using System;

using System.IO;

using Moq;

using ScriptCs.Contracts;

using ScriptCs.ReplCommands;

using Xunit;

namespace ScriptCs.Tests.ReplCommands

{

public class CdCommandTests

{

public class CommandNameProperty

{

[Fact]

public void ReturnsCd()

{

// act

var cmd = new CdCommand();

// assert

Assert.Equal("cd", cmd.CommandName);

}

}

public class ExecuteMethod

{

[Fact]

public void ChangesRelativePathBasedOnArg()

{

// arrange

var fs = new Mock<IFileSystem>();

var repl = new Mock<IRepl>();

var tempPath = Path.GetTempPath().TrimEnd(Path.DirectorySeparatorChar);

fs.Setup(x => x.CurrentDirectory).Returns(Path.Combine(tempPath, "dir"));

repl.Setup(x => x.FileSystem).Returns(fs.Object);

var cmd = new CdCommand();

// act

cmd.Execute(repl.Object, new[] { ".." });

// assert

fs.VerifySet(x => x.CurrentDirectory = tempPath, Times.Once());

}

}

}

}