def setUp(self): self.clusterer = ItemsClusterer() def test_addNewCluster(self):
class ItemsClustererTests(unittest.TestCase):
def setUp(self): self.clusterer = ItemsClusterer()
def test_addNewCluster(self):
items = set([1,2,3])
self.clusterer.add(items)
self.assertEqual([items], [cluster for cluster in self.clusterer.iterateClusters()])
self.assertEqual(1, len(set([self.clusterer.itemToClusterMap[i] for i in items])))
def test_addItemsToExistingCluster(self):
items = set([1,2,3])
newItems = set([1,4,5])
self.clusterer.add(items)
self.clusterer.add(newItems)
self.assertEqual([items.union(newItems)], [cluster for cluster in self.clusterer.iterateClusters()])
self.assertEqual(1, len(set([self.clusterer.itemToClusterMap[i] for i in items.union(newItems)])))
def test_addItemsWithMultiplePossibleClusters(self):
items1 = set([1,2,3])
items2 = set([6,4,5])
items3 = set([7, 1, 6])
self.clusterer.add(items1), self.clusterer.add(items2), self.clusterer.add(items3)
self.assertEqual(1, len(list(self.clusterer.iterateClusters())))
self.assertEqual(7, len(list(self.clusterer.iterateClusters())[0]))
self.assertEqual(7, len(self.clusterer.itemToClusterMap))
self.assertEqual(1, len(set([self.clusterer.itemToClusterMap[i] for i in items1.union(items2).union(items3)])))
