def test_should_not_intersect_without_common_elements(self):
seq_1 = [1, 2, 3]
seq_2 = [4, 5, 6]
expected = []
self.assertItemsEqual(expected, rm._intersect(seq_1, seq_2))
self.assertItemsEqual(expected, rm._intersect(seq_2, seq_1))
def test_should_intersect_empty(self):
seq_1 = []
seq_2 = []
expected = []
self.assertItemsEqual(expected, rm._intersect(seq_1, seq_2))
self.assertItemsEqual(expected, rm._intersect(seq_2, seq_1))
def test_should_intersect_seqs(self):
seq_1 = [1, 2, 3]
seq_2 = [2]
expected = [2]
self.assertItemsEqual(expected, rm._intersect(seq_1, seq_2))
self.assertItemsEqual(expected, rm._intersect(seq_2, seq_1))
def test_should_not_intersect_without_common_elements(self):
seq_1 = [1, 2, 3]
seq_2 = [4, 5, 6]
expected = []
self.assertItemsEqual(expected, rm._intersect(seq_1, seq_2))
self.assertItemsEqual(expected, rm._intersect(seq_2, seq_1))
def test_should_intersect_empty(self):
seq_1 = []
seq_2 = []
expected = []
self.assertItemsEqual(expected, rm._intersect(seq_1, seq_2))
self.assertItemsEqual(expected, rm._intersect(seq_2, seq_1))
def test_should_intersect_seqs(self):
seq_1 = [1, 2, 3]
seq_2 = [2]
expected = [2]
self.assertItemsEqual(expected, rm._intersect(seq_1, seq_2))
self.assertItemsEqual(expected, rm._intersect(seq_2, seq_1))
