public void GoBackTo_Exception_IfPageNameIsEmpty()
{
MockNavigationStack navigationStack = new MockNavigationStack();
var e = Assert.Throws<ArgumentException>(() => navigationStack.GoBackTo(""));
Assert.Equal("The argument cannot be null or an empty string.\r\nParameter name: pageName", e.Message);
Assert.Equal("pageName", e.ParamName);
}
public void GoBackTo_NavigatesBackToPage()
{
MockNavigationStack navigationStack = new MockNavigationStack();
navigationStack.NavigateTo("Page 1");
navigationStack.NavigateTo("Page 2");
navigationStack.NavigateTo("Page 3");
navigationStack.NavigateTo("Page 4");
navigationStack.GoBackTo("Page 2");
Assert.Equal(new string[] { "Page 1", "Page 2" }, navigationStack.Select(e => e.PageName).ToList());
}