@Test
public void testToString() {

	assertEquals(makeStringId(this.loc11), this.id11.toString());
	assertEquals(makeStringId(this.loc12), this.id12.toString());
	assertEquals(makeStringId(this.loc13), this.id13.toString());
	assertEquals(makeStringId(this.loc21), this.id21.toString());
	assertEquals(makeStringId(this.loc22), this.id22.toString());
	assertEquals(makeStringId(this.loc23), this.id23.toString());
	assertEquals(this.id11.toString(), this.id11.toString());
	assertEquals(this.id12.toString(), this.id11.toString());
	assertNotEquals(this.id13.toString(), this.id11.toString());
	assertNotEquals(this.id21.toString(), this.id11.toString());
	assertNotEquals(this.id22.toString(), this.id11.toString());
	assertNotEquals(this.id23.toString(), this.id11.toString());
	assertEquals(this.id11.toString(), this.id12.toString());
	assertEquals(this.id12.toString(), this.id12.toString());
	assertNotEquals(this.id13.toString(), this.id12.toString());
	assertNotEquals(this.id21.toString(), this.id12.toString());
	assertNotEquals(this.id22.toString(), this.id12.toString());
	assertNotEquals(this.id23.toString(), this.id12.toString());
	assertNotEquals(this.id11.toString(), this.id13.toString());
	assertNotEquals(this.id12.toString(), this.id13.toString());
	assertEquals(this.id13.toString(), this.id13.toString());
	assertNotEquals(this.id21.toString(), this.id13.toString());
	assertNotEquals(this.id22.toString(), this.id13.toString());
	assertNotEquals(this.id23.toString(), this.id13.toString());
	assertNotEquals(this.id11.toString(), this.id21.toString());
	assertNotEquals(this.id12.toString(), this.id21.toString());
	assertNotEquals(this.id13.toString(), this.id21.toString());
	assertEquals(this.id21.toString(), this.id21.toString());
	assertEquals(this.id22.toString(), this.id21.toString());
	assertNotEquals(this.id23.toString(), this.id21.toString());
	assertNotEquals(this.id11.toString(), this.id22.toString());
	assertNotEquals(this.id12.toString(), this.id22.toString());
	assertNotEquals(this.id13.toString(), this.id22.toString());
	assertEquals(this.id21.toString(), this.id22.toString());
	assertEquals(this.id22.toString(), this.id22.toString());
	assertNotEquals(this.id23.toString(), this.id22.toString());
	assertNotEquals(this.id11.toString(), this.id23.toString());
	assertNotEquals(this.id12.toString(), this.id23.toString());
	assertNotEquals(this.id13.toString(), this.id23.toString());
	assertNotEquals(this.id21.toString(), this.id23.toString());
	assertNotEquals(this.id22.toString(), this.id23.toString());
	assertEquals(this.id23.toString(), this.id23.toString());
}