public void Cant_get_prev_page_when_on_first_page()
{
var pagger = new PaggerViewModel {Page = 1};
pagger.PreviousPage();
Assert.Equal(1, pagger.Page);
}
public void Can_get_prev_page()
{
var pagger = new PaggerViewModel {TotalPages = 10, Page = 5};
pagger.PreviousPage();
Assert.Equal(4, pagger.Page);
}