public void returns_string_from_resource_if_exists()
{
string request = "test-resource";
string response = "Translated test resource";
var resourceSource = new Mock <IResourceSource>();
resourceSource.Setup(x => x.Retrieve(It.Is <string>(y => y == request))).Returns(response);
_resourceProvider.AddSource(Thread.CurrentThread.CurrentUICulture.Name,
resourceSource.Object);
string result = _resourceProvider.Retrieve(request) as string;
Assert.AreEqual(response, result);
}