public void ApplyBackToRootOnRootScreenTest()
{
// - Arrange
var screenStack = new ScreenStack();
var navigatorMock = new Mock <Navigator>();
var command = new BackToRootNavCommand();
// - Act
command.Apply(navigatorMock.Object, screenStack);
// - Assert
Assert.IsTrue(screenStack.IsRoot);
navigatorMock.Verify(it => it.BackToRoot(), Times.Never);
}
public void ApplyBackToRootCommandTest()
{
// - Arrange
var screenStack = new ScreenStack();
var rootScreen = new ScreenStub();
screenStack.Push(rootScreen, new ScreenStub());
var navigatorMock = new Mock <Navigator>();
var command = new BackToRootNavCommand();
// - Act
command.Apply(navigatorMock.Object, screenStack);
// - Assert
Assert.IsTrue(screenStack.IsRoot);
Assert.AreEqual(1, screenStack.Count);
Assert.AreEqual(rootScreen, screenStack.CurrentScreen);
navigatorMock.Verify(it => it.BackToRoot(), Times.Once);
}