public void CanArrangeTest()
{
ChainElementArranger chain = new ChainElementArranger();
FieldElement fieldElement = new FieldElement();
//
// No arrangers in chain
//
Assert.IsFalse(
chain.CanArrange(fieldElement),
"Empty chain element arranger should not be able to arrange an element.");
//
// Add an arranger that can't arrange the element
//
TestElementArranger disabledArranger = new TestElementArranger(false);
chain.AddArranger(disabledArranger);
Assert.IsFalse(chain.CanArrange(fieldElement), "Unexpected return value from CanArrange.");
//
// Add an arranger that can arrange the element
//
TestElementArranger enabledArranger = new TestElementArranger(true);
chain.AddArranger(enabledArranger);
Assert.IsTrue(chain.CanArrange(fieldElement), "Unexpected return value from CanArrange.");
//
// Null
//
Assert.IsFalse(chain.CanArrange(null), "Unexpected return value from CanArrange.");
}
public void UnsupportedArrangeNoParentTest()
{
ChainElementArranger chain = new ChainElementArranger();
FieldElement fieldElement = new FieldElement();
//
// Add an arranger that can't arrange the element
//
TestElementArranger disabledArranger = new TestElementArranger(false);
chain.AddArranger(disabledArranger);
Assert.IsFalse(chain.CanArrange(fieldElement), "Unexpected return value from CanArrange.");
chain.ArrangeElement(null, fieldElement);
}
public void UnsupportedArrangeWithParentTest()
{
GroupElement parentElement = new GroupElement();
ChainElementArranger chain = new ChainElementArranger();
FieldElement fieldElement = new FieldElement();
//
// Add an arranger that can't arrange the element
//
TestElementArranger disabledArranger = new TestElementArranger(false);
chain.AddArranger(disabledArranger);
Assert.IsFalse(chain.CanArrange(fieldElement), "Unexpected return value from CanArrange.");
chain.ArrangeElement(parentElement, fieldElement);
Assert.IsTrue(parentElement.Children.Contains(fieldElement));
}