public void TestChangeEvents()
{
ActiveCollection <object> test = new ActiveCollection <object>();
test.ActiveItemChanging += test_ActiveItemChanging;
test.ActiveItemChanged += test_ActiveItemChanged;
object a = new object();
test.Add(a);
Assert.True(m_changingEvents == 1);
Assert.True(m_changedEvents == 1);
test.Add(a);
Assert.True(m_changingEvents == 1); // no change!
Assert.True(m_changedEvents == 1); // no change!
object b = new object();
test.Add(b);
Assert.True(m_changingEvents == 2);
Assert.True(m_changedEvents == 2);
test.Remove(a);
Assert.True(m_changingEvents == 2); // no change!
Assert.True(m_changedEvents == 2); // no change!
test.Remove(b);
Assert.True(m_changingEvents == 3);
Assert.True(m_changedEvents == 3);
test.ActiveItem = a;
Assert.True(m_changingEvents == 4);
Assert.True(m_changedEvents == 4);
test.Clear();
Assert.True(m_changingEvents == 5);
Assert.True(m_changedEvents == 5);
test.Clear();
Assert.True(m_changingEvents == 5); // no change!
Assert.True(m_changedEvents == 5); // no change!
test.Add(b);
Assert.True(m_changingEvents == 6);
Assert.True(m_changedEvents == 6);
test.Set(new[] { a, b }); //'b' becomes ActiveItem, so no change
Assert.True(m_changingEvents == 6); // no change!
Assert.True(m_changedEvents == 6); // no change!
test.Set(new[] { b, a }); //'a' becomes ActiveItem, so we have a change
Assert.True(m_changingEvents == 7);
Assert.True(m_changedEvents == 7);
test.Set(new object[] { });
Assert.True(m_changingEvents == 8);
Assert.True(m_changedEvents == 8);
}
public void TestChangeEvents()
{
ActiveCollection<object> test = new ActiveCollection<object>();
test.ActiveItemChanging += test_ActiveItemChanging;
test.ActiveItemChanged += test_ActiveItemChanged;
object a = new object();
test.Add(a);
Assert.True(m_changingEvents == 1);
Assert.True(m_changedEvents == 1);
test.Add(a);
Assert.True(m_changingEvents == 1); // no change!
Assert.True(m_changedEvents == 1); // no change!
object b = new object();
test.Add(b);
Assert.True(m_changingEvents == 2);
Assert.True(m_changedEvents == 2);
test.Remove(a);
Assert.True(m_changingEvents == 2); // no change!
Assert.True(m_changedEvents == 2); // no change!
test.Remove(b);
Assert.True(m_changingEvents == 3);
Assert.True(m_changedEvents == 3);
test.ActiveItem = a;
Assert.True(m_changingEvents == 4);
Assert.True(m_changedEvents == 4);
test.Clear();
Assert.True(m_changingEvents == 5);
Assert.True(m_changedEvents == 5);
test.Clear();
Assert.True(m_changingEvents == 5); // no change!
Assert.True(m_changedEvents == 5); // no change!
test.Add(b);
Assert.True(m_changingEvents == 6);
Assert.True(m_changedEvents == 6);
test.Set(new[] { a, b }); //'b' becomes ActiveItem, so no change
Assert.True(m_changingEvents == 6); // no change!
Assert.True(m_changedEvents == 6); // no change!
test.Set(new[] { b, a }); //'a' becomes ActiveItem, so we have a change
Assert.True(m_changingEvents == 7);
Assert.True(m_changedEvents == 7);
test.Set(new object[] { });
Assert.True(m_changingEvents == 8);
Assert.True(m_changedEvents == 8);
}
