public void Should_correctly_calculate_values_on_last_page()
{
var model = new PagedModel {
CurrentPage = 4,
PageSize = 20,
TotalCount = 70
};
Assert.That(model.Start, Is.EqualTo(61));
Assert.That(model.End, Is.EqualTo(80));
Assert.That(model.ActualEnd, Is.EqualTo(70));
Assert.That(model.HasNext, Is.False);
Assert.That(model.HasPrevious, Is.True);
Assert.That(model.TotalPages, Is.EqualTo(4));
var menuModel = model.GetMenuModel();
Assert.That(menuModel.ActualEnd, Is.EqualTo(70));
Assert.That(menuModel.CurrentPage, Is.EqualTo(4));
Assert.That(menuModel.CurrentPageIsValid, Is.True);
Assert.That(menuModel.End, Is.EqualTo(80));
Assert.That(menuModel.HasNext, Is.False);
Assert.That(menuModel.HasPrevious, Is.True);
Assert.That(menuModel.PageSize, Is.EqualTo(20));
Assert.That(menuModel.ShouldShowMenu, Is.True);
Assert.That(menuModel.Start, Is.EqualTo(61));
Assert.That(menuModel.TotalCount, Is.EqualTo(70));
Assert.That(menuModel.TotalPages, Is.EqualTo(4));
}
public void Should_not_show_menu_when_total_count_is_less_than_page_size()
{
var model = new PagedModel {
CurrentPage = 1,
PageSize = 20,
TotalCount = 10
};
Assert.That(model.GetMenuModel().ShouldShowMenu, Is.False);
}
public void Should_enumerate_pages_properly()
{
var model = new PagedModel {
CurrentPage = 1,
PageSize = 15,
TotalCount = 40
};
var pages = model.GetMenuModel().Pages.ToArray();
Assert.That(pages, Has.Length.EqualTo(3));
Assert.That(pages[0].Start, Is.EqualTo(1));
Assert.That(pages[0].End, Is.EqualTo(15));
Assert.That(pages[0].Number, Is.EqualTo(1));
Assert.That(pages[1].Start, Is.EqualTo(16));
Assert.That(pages[1].End, Is.EqualTo(30));
Assert.That(pages[1].Number, Is.EqualTo(2));
Assert.That(pages[2].Start, Is.EqualTo(31));
Assert.That(pages[2].End, Is.EqualTo(40));
Assert.That(pages[2].Number, Is.EqualTo(3));
}
public void Should_not_be_able_to_retrieve_out_of_range_page()
{
var model = new PagedModel {
CurrentPage = 1,
PageSize = 15,
TotalCount = 40
};
model.GetMenuModel().GetPage(0);
}
public void Should_detect_invalid_page()
{
var model = new PagedModel {
CurrentPage = 12,
PageSize = 20,
TotalCount = 70
};
Assert.That(model.GetMenuModel().CurrentPageIsValid, Is.False);
}
