public void NavigateBack()
{
history.Setup(i => i.Pop()).Returns("Bar");
sut.NavigateToPriorPage();
Assert.Equal("Bar", sut.Content);
history.Verify(i => i.Pop(), Times.Once);
history.VerifyNoOtherCalls();
}
public void DefaultBackNavigationDoesNothing()
{
sut.NavigateTo("Foo");
var str = "content";
sut.NavigateTo(str);
sut.NavigateToPriorPage();
Assert.Equal(str, sut.Content);
}