@Test
public void clear() {

	this.xml.clear();
	assertNull(this.xml.getResource(0));
	assertNull(this.xml.getResource(1));
	assertNull(this.xml.getResource(2));
	assertNull(this.xml.getResource(3));
	assertNull(this.xml.getResource(4));
	assertNull(this.xml.getResource(5));
}