def test_call_with_match():
sentence = "may the force be with you"
keywords = ["may", "force", "some other thing", "be with"]
result = filter.call(sentence, keywords)
expect(result).to.equal(["may", "force", "be with"])
def test_call_without_match():
sentence = "may the force be with you"
result = filter.call(sentence)
expect(result).to.equal([])