public void GetShellCommandsTest()
{
Type[] commands = ShellCommand.GetShellCommands(Assembly.GetExecutingAssembly());
Assert.IsNotNull(commands);
Assert.AreEqual(3, commands.Length);
CollectionAssert.Contains(commands, typeof(TestCommand));
CollectionAssert.Contains(commands, typeof(AnotherCommand));
CollectionAssert.Contains(commands, typeof(CustomParsingCommand));
}