//[ExpectedException(typeof(Exception), "My ex")]
public void TestMethod1()
{
var mock = new Mock <ILastUsernameProvider>(MockBehavior.Default);
mock.Setup(lp => lp.ReadLastUserName()).Returns("Balkarov");
mock.Setup(lp => lp.SaveLastUserName(It.IsAny <string>()));
ILastUsernameProvider lastUsernameProvider = mock.Object;
Assert.AreEqual(lastUsernameProvider.ReadLastUserName(), "Balkarov");
var ex = Assert.Throws <Exception>(() => { Console.WriteLine("Hi man"); });
//lastUsernameProvider.SaveLastUserName("lll");
Assert.That(ex.Message == "Hi man");
mock.Verify();
}
// "Внутренний" предназначен только для тестирования и может принимать "фейк"
public LoginViewModel(ILastUsernameProvider provider)
{
_provider = provider;
UserName = _provider.ReadLastUserName();
}
