@Test
public void insertBefore() {
// Arrange
ButtonElement be0 = Document.get().createPushButtonElement();
ButtonElement be1 = Document.get().createPushButtonElement();
ButtonElement be2 = Document.get().createPushButtonElement();
ButtonElement be3 = Document.get().createPushButtonElement();
ButtonElement be4 = Document.get().createPushButtonElement();
ButtonElement be5 = Document.get().createPushButtonElement();
n.appendChild(be0);
n.appendChild(be2);
// Act & Assert
n.insertBefore(be1, be2);
n.insertBefore(be3, null);
n.insertBefore(be4, be5);
assertEquals(be0, n.getChildNodes().getItem(0));
assertEquals(be1, n.getChildNodes().getItem(1));
assertEquals(be2, n.getChildNodes().getItem(2));
assertEquals(be3, n.getChildNodes().getItem(3));
assertEquals(be4, n.getChildNodes().getItem(4));
}
