public void Indexer()
{
var control = new PagedControl();
Page page1 = new Page();
control.Pages.Add(page1);
Page page2 = new Page();
control.Pages.Add(page2);
Page page3 = new Page();
control.Pages.Add(page3);
// Getter
Assert.AreEqual(3, control.Pages.Count);
Assert.AreEqual(page1, control.Pages[0]);
Assert.AreEqual(page2, control.Pages[1]);
Assert.AreEqual(page3, control.Pages[2]);
Assert.IsTrue(control.Pages.Contains(page1));
Assert.IsTrue(control.Pages.Contains(page2));
Assert.IsTrue(control.Pages.Contains(page3));
Page page4 = new Page();
control.Pages[1] = page4;
// Setter
Assert.AreEqual(3, control.Pages.Count);
Assert.AreEqual(page4, control.Pages[1]);
Assert.IsTrue(control.Pages.Contains(page1));
Assert.IsTrue(control.Pages.Contains(page4));
Assert.IsTrue(control.Pages.Contains(page3));
Assert.IsFalse(control.Pages.Contains(page2));
}
public void PageChangingCancelNavigation()
{
var control = new PagedControl();
// Cancel all page change events
control.PageChanging += (sender, e) => { e.Cancel = true; };
// While adding a page and if the control is empty the control automatically
// sets the new page as the current page. This event cannot be cancelled as it would
// leave the control in an indeterminate state. SelectedPage should always return a valid
// page if there is at least one page in the control, and it should return null if there are
// no pages.
var page1 = new Page();
Assert.AreEqual(null, control.SelectedPage);
Assert.AreEqual(-1, control.SelectedIndex);
control.Pages.Add(page1);
Assert.AreEqual(page1, control.SelectedPage);
Assert.AreEqual(0, control.SelectedIndex);
// Otherwise it is OK to cancel the event
var page2 = new Page();
control.Pages.Add(page2);
control.SelectedPage = page2;
Assert.AreEqual(page1, control.SelectedPage);
Assert.AreEqual(0, control.SelectedIndex);
}
public void Count()
{
var control = new PagedControl();
control.Pages.Add(new Page());
control.Pages.Add(new Page());
control.Pages.Add(new Page());
Assert.AreEqual(3, control.Pages.Count);
}
public void RemoveAt()
{
var control = new PagedControl();
control.Pages.Add(new Page());
int count = control.Pages.Count;
control.Pages.RemoveAt(0);
Assert.AreEqual(count - 1, control.Pages.Count);
}
public void Add()
{
var control = new PagedControl();
int count = control.Pages.Count;
var page = new Page();
control.Pages.Add(page);
Assert.AreEqual(count + 1, control.Pages.Count);
Assert.AreEqual(page, control.Pages[control.Pages.Count - 1]);
Assert.ThrowsException <ArgumentException>(() => control.Controls.Add(new Button()));
}
public void Remove()
{
var control = new PagedControl();
control.Pages.Add(new Page());
int count = control.Pages.Count;
control.Pages.Remove(control.Pages[0]);
Assert.AreEqual(count - 1, control.Pages.Count);
Assert.ThrowsException <ArgumentException>(() => control.Controls.Remove(new Button()));
Assert.ThrowsException <ArgumentException>(() => control.Controls.Remove(new Page()));
}
public void GetEnumerator()
{
var control = new PagedControl();
Page page1 = new Page();
control.Pages.Add(page1);
Page page2 = new Page();
control.Pages.Add(page2);
Page page3 = new Page();
control.Pages.Add(page3);
CollectionAssert.AreEqual(new[] { page1, page2, page3 }, control.Pages.Take(3).ToArray());
}
public void PageAdded()
{
var control = new PagedControl();
Page pageAdded = null;
control.PageAdded += (sender, e) => pageAdded = e.Page;;
var page1 = new Page();
control.Pages.Add(page1);
Assert.AreEqual(page1, pageAdded);
var page2 = new Page();
control.Pages.Insert(1, page2);
Assert.AreEqual(page2, pageAdded);
}
public void Contains()
{
var control = new PagedControl();
Page page1 = new Page();
control.Pages.Add(page1);
Page page2 = new Page();
control.Pages.Add(page2);
Page page3 = new Page();
control.Pages.Add(page3);
Assert.IsTrue(control.Pages.Contains(page1));
Assert.IsTrue(control.Pages.Contains(page2));
Assert.IsTrue(control.Pages.Contains(page3));
}
public void Insert()
{
var control = new PagedControl();
int count = control.Pages.Count;
var page1 = new Page();
control.Pages.Insert(0, page1);
Assert.AreEqual(count + 1, control.Pages.Count);
Assert.AreEqual(page1, control.Pages[0]);
var page2 = new Page();
control.Pages.Insert(1, page2);
Assert.AreEqual(count + 2, control.Pages.Count);
Assert.AreEqual(page2, control.Pages[1]);
}
public void IndexOf()
{
var control = new PagedControl();
Page page1 = new Page();
control.Pages.Add(page1);
Page page2 = new Page();
control.Pages.Add(page2);
Page page3 = new Page();
control.Pages.Add(page3);
Assert.AreEqual(0, control.Pages.IndexOf(page1));
Assert.AreEqual(1, control.Pages.IndexOf(page2));
Assert.AreEqual(2, control.Pages.IndexOf(page3));
}
public void GoNext()
{
var control = new PagedControl();
Assert.IsFalse(control.CanGoNext);
var page1 = new Page();
control.Pages.Add(page1);
Assert.IsFalse(control.CanGoNext);
var page2 = new Page();
control.Pages.Add(page2);
Assert.IsTrue(control.CanGoNext);
control.GoNext();
Assert.AreEqual(page2, control.SelectedPage);
Assert.IsFalse(control.CanGoNext);
}
public void PageChanged()
{
var control = new PagedControl();
Page oldPage = null;
Page currentPage = null;
control.PageChanged += (sender, e) => { oldPage = e.OldPage; currentPage = e.CurrentPage; };
var page1 = new Page();
control.Pages.Add(page1);
Assert.AreEqual(null, oldPage);
Assert.AreEqual(page1, currentPage);
control.Pages.Remove(page1);
Assert.AreEqual(page1, oldPage);
Assert.AreEqual(null, currentPage);
control.Pages.Add(page1);
control.Pages.Clear();
Assert.AreEqual(page1, oldPage);
Assert.AreEqual(null, currentPage);
control.Pages.Add(page1);
Assert.AreEqual(null, oldPage);
Assert.AreEqual(page1, currentPage);
var page2 = new Page();
control.Pages.Add(page2);
control.SelectedPage = page2;
Assert.AreEqual(page1, oldPage);
Assert.AreEqual(page2, currentPage);
var page3 = new Page();
control.Pages.Add(page3);
control.SelectedIndex = 2;
Assert.AreEqual(page2, oldPage);
Assert.AreEqual(page3, currentPage);
}
