public void testLocationsLinkedTo() {
ArrayList<String> locations = new ArrayList<String>();
List<String> linkedTo;
linkedTo = aMap.getLocationsLinkedTo("A");
locations.clear();
locations.add("B");
locations.add("C");
Assert.assertTrue(locations.containsAll(linkedTo)
&& linkedTo.size() == 2);
linkedTo = aMap.getLocationsLinkedTo("B");
locations.clear();
locations.add("A");
locations.add("C");
locations.add("E");
Assert.assertTrue(locations.containsAll(linkedTo)
&& linkedTo.size() == 3);
linkedTo = aMap.getLocationsLinkedTo("C");
locations.clear();
locations.add("A");
locations.add("B");
locations.add("D");
Assert.assertTrue(locations.containsAll(linkedTo)
&& linkedTo.size() == 3);
linkedTo = aMap.getLocationsLinkedTo("D");
locations.clear();
locations.add("C");
Assert.assertTrue(locations.containsAll(linkedTo)
&& linkedTo.size() == 1);
linkedTo = aMap.getLocationsLinkedTo("E");
Assert.assertTrue(linkedTo.size() == 0);
}