public void test_getStatistics() throws Exception {
// empty initially
assertEquals("0 relationships in 0 keys in 0 sources", store.getStatistics());
// record relationship
store.recordRelationship(elementA, relationship, mockLocation(elementA));
store.recordRelationship(elementA, relationship, mockLocation(elementB));
store.recordRelationship(elementB, relationship, mockLocation(elementC));
assertEquals("3 relationships in 2 keys in 2 sources", store.getStatistics());
}
