def test_or_operand(self):
A = count(0, step=2)
B = count(1, step=2)
one = EdgeSet(UEdge(next(A), next(B)) for _ in range(200))
self.assertEqual(len(one), 200)
self.assertTrue(hasattr(one, "__or__"))
C = count(200, step=2)
D = count(201, step=2)
two = EdgeSet(UEdge(next(C), next(D)) for _ in range(200))
self.assertEqual(len(two), 200)
three = one | two
self.assertIsInstance(three, EdgeSet)
self.assertEqual(len(three), 300)
four = two | one
self.assertEqual(len(four), len(three))
self.assertIsInstance(four, EdgeSet)
self.assertEqual(three, four)
E = count(0, step=2)
F = count(1, step=2)
five = EdgeSet(UEdge(next(E), next(F)) for _ in range(300))
self.assertEqual(three, five)
self.assertEqual(four, five)
def test_discard_method(self):
items = [
(8, 6), (7, 4), (5,3), (2, 1),
(8, 7), (8, 4), (8, 5), (8, 2)
]
result = EdgeSet(items)
self.assertEqual(len(result), len(items))
self.assertTrue(hasattr(result, 'discard'))
with self.subTest("without exception: tuple"):
result.discard((5, 8))
self.assertEqual(len(result), len(items) - 1)
with self.subTest("without exception: args"):
result.discard(2, 1)
self.assertEqual(len(result), len(items) - 2)
with self.subTest("without exception: list"):
result.discard([4, 7])
self.assertEqual(len(result), len(items) - 3)
with self.subTest("without exception: list"):
result.discard(UEdge(7, 8))
self.assertEqual(len(result), len(items) - 4)
with self.subTest("without exception: alredy taken"):
result.discard(UEdge(7, 8))
self.assertEqual(len(result), len(items) - 4)
with self.subTest("without exception: non exists previously"):
result.discard(UEdge(7, 8))
self.assertEqual(len(result), len(items) - 4)
def test_and_operand(self):
A = count(0, step=2)
B = count(1, step=2)
one = EdgeSet(UEdge(next(A), next(B)) for _ in range(200))
self.assertEqual(len(one), 200)
self.assertTrue(hasattr(one, "__and__"))
C = count(200, step=2)
D = count(201, step=2)
two = EdgeSet(UEdge(next(C), next(D)) for _ in range(200))
self.assertEqual(len(two), 200)
three = one & two
self.assertIsInstance(three, EdgeSet)
self.assertEqual(len(three), 100)
four = two & one
self.assertEqual(len(four), len(three))
self.assertIsInstance(four, EdgeSet)
self.assertEqual(three, four)
def test_sub_operand(self):
A = count(0, step=2)
B = count(1, step=2)
one = EdgeSet(UEdge(next(A), next(B)) for _ in range(200))
self.assertEqual(len(one), 200)
self.assertTrue(hasattr(one, "__sub__"))
C = count(200, step=2)
D = count(201, step=2)
two = EdgeSet(UEdge(next(C), next(D)) for _ in range(200))
self.assertEqual(len(two), 200)
three = one - two
self.assertIsInstance(three, EdgeSet)
self.assertEqual(len(three), 100)
A = count(0, step=2)
B = count(1, step=2)
three_expected = EdgeSet(UEdge(next(A), next(B)) for _ in range(100))
self.assertEqual(three, three_expected)
def test_contains(self):
A = count(0, step=2)
B = count(1, step=2)
items = [ (next(A), next(B)) for _ in range(200)]
result = EdgeSet(items)
self.assertTrue(hasattr(result, "__contains__"))
self.assertTrue(UEdge(8, 9) in result)
self.assertTrue(UEdge(9, 8) in result)
self.assertFalse(UEdge(8, 7) in result)
self.assertFalse(UEdge(7, 8) in result)
def test_if_random_sample_works(self):
A = count(0, step=2)
B = count(1, step=2)
edges = EdgeSet(UEdge(next(A), next(B)) for _ in range(200))
arbitrary = sample(edges, k=10)
def test_if_choices_works(self):
A = count(0, step=2)
B = count(1, step=2)
edges = EdgeSet(UEdge(next(A), next(B)) for _ in range(200))
arbitrary_edges = choices(edges, k=5)
def test_remove_method(self):
items = [
(8, 6), (7, 4), (5,3), (2, 1),
(8, 7), (8, 4), (8, 5), (8, 2)
]
result = EdgeSet(items)
self.assertEqual(len(result), len(items))
self.assertTrue(hasattr(result, 'remove'))
with self.subTest("without exception: tuple"):
result.remove((5, 8))
self.assertEqual(len(result), len(items) - 1)
with self.subTest("without exception: args"):
result.remove(2, 1)
self.assertEqual(len(result), len(items) - 2)
with self.subTest("without exception: list"):
result.remove([4, 7])
self.assertEqual(len(result), len(items) - 3)
with self.subTest("without exception: list"):
result.remove(UEdge(7, 8))
self.assertEqual(len(result), len(items) - 4)
with self.subTest("with exception"):
with self.assertRaises(KeyError):
result.remove((101, 105))
with self.subTest("with exception: alredy removed"):
with self.assertRaises(KeyError):
result.remove((8, 5))
def test_convert_to_list(self):
A = count(0, step=2)
B = count(1, step=2)
edges = EdgeSet(UEdge(next(A), next(B)) for _ in range(200))
result = list(edges)
self.assertIsInstance(result, list)
self.assertEqual(len(result), 200)
def test_xor_operand(self):
A = count(0, step=2)
B = count(1, step=2)
one = EdgeSet(UEdge(next(A), next(B)) for _ in range(200))
self.assertEqual(len(one), 200)
self.assertTrue(hasattr(one, "__xor__"))
C = count(200, step=2)
D = count(201, step=2)
two = EdgeSet(UEdge(next(C), next(D)) for _ in range(200))
self.assertEqual(len(two), 200)
three = one ^ two
self.assertIsInstance(three, EdgeSet)
self.assertEqual(len(three), 200)
four = two ^ one
self.assertEqual(three, four)
self.assertIsInstance(four, EdgeSet)
E = count(0, step=2)
F = count(1, step=2)
five = EdgeSet(UEdge(next(E), next(F)) for _ in range(100))
six = EdgeSet((next(E), next(F)) for _ in range(100))
items = [(next(E), next(F)) for _ in range(100)]
for item in items:
five.add(item)
self.assertEqual(len(five), 200)
self.assertEqual(three, five)
self.assertEqual(four, five)
seven = six & five
self.assertEqual(len(seven), 0)
self.assertFalse(seven)
self.assertIsInstance(seven, EdgeSet)
def test_add_an_edge(self):
items = [(8, 9), (7, 4),(5,3), (2,1)]
result = EdgeSet(items)
edge = UEdge(40, 50)
self.assertFalse(edge in result)
self.assertEqual(len(result), len(items))
self.assertTrue(hasattr(result, 'add'))
result.add(edge)
self.assertTrue(edge in result)
self.assertEqual(len(result), len(items) + 1)
def test_init_with_set_of_edges(self):
A = count(0, step=2)
B = count(1, step=2)
items = set([UEdge(next(A), next(B)) for _ in range(200)])
self.assertIsInstance(items, set)
self.assertTrue(all(isinstance(item, UEdge) for item in items))
result = EdgeSet(items)
self.assertIsInstance(result, EdgeSet)
self.assertEqual(len(result), 200)
self.assertIsInstance(result._edges, set)
self.assertTrue(all(isinstance(edge, UEdge) for edge in result))