public void GetGoBackCommand_ReturnsNewICommand() { MockNavigationManager navigationManager = new MockNavigationManager(); ICommand command = navigationManager.GetGoBackCommand(); Assert.IsNotNull(command); }
public void GetGoBackCommand_CanExecute_IsTrueIfCanGoBack() { MockNavigationManager navigationManager = new MockNavigationManager() { CanGoBack = true }; ICommand command = navigationManager.GetGoBackCommand(); Assert.AreEqual(true, command.CanExecute(null)); }
public void GoBackCommand_Execute_DoesNothingIfCannotGoBack() { MockNavigationManager navigationManager = new MockNavigationManager() { CanGoBack = false }; ICommand command = navigationManager.GetGoBackCommand(); command.Execute(null); CollectionAssert.AreEqual(new string[] { }, (ICollection)navigationManager.MethodCallLog); }
public void GoBackCommand_Execute_CallsGoBackIfCanGoBack() { MockNavigationManager navigationManager = new MockNavigationManager() { CanGoBack = true }; ICommand command = navigationManager.GetGoBackCommand(); command.Execute(null); CollectionAssert.AreEqual(new string[] { "GoBack()" }, (ICollection)navigationManager.MethodCallLog); }
public void GetGoBackCommand_CanExecuteChanged_IsCalledWhenCanGoBackChanged() { MockNavigationManager navigationManager = new MockNavigationManager(); ICommand command = navigationManager.GetGoBackCommand(); int canExecuteChangedCount = 0; command.CanExecuteChanged += delegate(object sender, EventArgs e) { canExecuteChangedCount++; }; navigationManager.RaiseCanGoBackChanged(); Assert.AreEqual(1, canExecuteChangedCount); }