public void Can_read_various_parameters()
        {
            var commandLine = new CommandLine
            {
                { "files", "first.txt" },
                { "files", "second.txt" },
                { "build", "debug" },
                { "canWrite" },
                { "canBuild" },
            };

            var cmdln = new CommandLineReader <ITestParameter>(commandLine);

            var actualFiles = cmdln.GetItem(x => x.Files);
            var actualBuild = cmdln.GetItem(x => x.Build);
            var canWrite    = cmdln.GetItem(x => x.CanWrite);
            var canBuild    = cmdln.GetItem(x => x.CanBuild);

            //var async = cmdln.GetItem(x => x.Async);

            Assert.Equal(new[] { "first.txt", "second.txt" }, actualFiles);
            Assert.Equal("debug", actualBuild);
            Assert.Equal(true, canWrite);
            Assert.Equal(true, canBuild);
            //Assert.Equal(true, async);
        }