@Test
public void testIsValidPrimitive() {

	assertFalse(this.network.isValidPrimitive());
	initTest2();
	assertFalse(this.network.isValidPrimitive());
	this.network.addBusStop(this.stop1);
	this.network.addBusStop(this.stop2);
	assertFalse(this.network.isValidPrimitive());
	this.network.addBusStop(this.stop3);
	this.network.addBusStop(this.stop4);
	assertTrue(this.network.isValidPrimitive());
}