/** Test method for {@link com.fuerve.whiteboard.milestone2.structures.Tree#getParent()}. */
@Test
public void testGetParent() {
final Tree<Integer> target = new Tree<Integer>();
final Tree<Integer> targetParent = new Tree<Integer>();
targetParent.addChild(target);
assertEquals(targetParent, target.getParent());
}
/**
* Test method for {@link
* com.fuerve.whiteboard.milestone2.structures.Tree#setDefaultTraversalMode(com.fuerve.whiteboard.milestone2.structures.Tree.TraversalMode)}.
*/
@Test
public void testSetDefaultTraversalMode() {
final Tree<Integer> target = new Tree<Integer>();
target.setDefaultTraversalMode(TraversalMode.INORDER);
final Iterator<Integer> iter = target.iterator();
assertTrue(iter instanceof InOrderIterator<?>);
}
/** Test method for {@link com.fuerve.whiteboard.milestone2.structures.Tree#isLeaf()}. */
@Test
public void testIsLeaf() {
final Tree<Integer> target = new Tree<Integer>();
final Tree<Integer> targetParent = new Tree<Integer>();
targetParent.addChild(target);
assertTrue(target.isLeaf());
assertFalse(targetParent.isLeaf());
}
@Test
public void testPostorderIteratorSingleValue() {
final Tree<Integer> target = new Tree<Integer>();
target.setValue(1);
final Iterator<Integer> iter = target.postorderIterator();
assertEquals(new Integer(1), iter.next());
assertFalse(iter.hasNext());
}
/** Test method for {@link com.fuerve.whiteboard.milestone2.structures.Tree#getChildren()}. */
@Test
public void testGetChildren() {
final Tree<Integer> target = new Tree<Integer>();
target.addChild(new Tree<Integer>());
target.addChild(new Tree<Integer>());
final Iterable<Tree<Integer>> children = target.getChildren();
int count = 0;
for (@SuppressWarnings("unused") final Tree<Integer> child : children) {
count++;
}
assertEquals(2, count);
}
/**
* Test method for {@link
* com.fuerve.whiteboard.milestone2.structures.Tree#removeChild(com.fuerve.whiteboard.milestone2.structures.Tree)}.
*/
@Test
public void testRemoveChild() {
final Tree<Integer> target = new Tree<Integer>();
final Tree<Integer> child = new Tree<Integer>();
child.setValue(1);
target.addChild(new Tree<Integer>());
target.addChild(new Tree<Integer>());
target.addChild(child);
target.addChild(new Tree<Integer>());
target.removeChild(child);
assertNotEquals(child, target.getChildAt(2));
}
@Test(expected = IllegalArgumentException.class)
public void testAddChildNull() {
final Tree<Integer> target = new Tree<Integer>();
target.addChild(null);
}
/**
* Test method for {@link com.fuerve.whiteboard.milestone2.structures.Tree#postorderIterator()}.
*/
@Test
public void testPostorderIterator() {
final Tree<Integer> target = new Tree<Integer>();
final Tree<Integer> child1 = new Tree<Integer>();
final Tree<Integer> child2 = new Tree<Integer>();
final Tree<Integer> child1_1 = new Tree<Integer>();
target.setValue(1);
child1.setValue(2);
child1_1.setValue(3);
child2.setValue(4);
target.addChild(child1);
target.addChild(child2);
child1.addChild(child1_1);
final Iterator<Integer> iter = target.postorderIterator();
for (int i = 1; i <= 4; i++) {
assertEquals(new Integer(i), iter.next());
}
}
/** Test method for {@link com.fuerve.whiteboard.milestone2.structures.Tree#getValue()}. */
@Test
public void testGetSetValue() {
final Tree<Integer> target = new Tree<Integer>();
target.setValue(1);
assertEquals(new Integer(1), target.getValue());
}