public void TestPatchHostNegative()
{
Assert.Null(EnvironmentExtensions.PatchHost(null, null));
Assert.Null(EnvironmentExtensions.PatchHost(null, " "));
Assert.Equal(new Uri("https://manage.windowsazure.com/subscriptions"), new Uri("https://manage.windowsazure.com/subscriptions").PatchHost(" "));
}