def test_search():
l = Slist()
l.prepend("Bob")
l.prepend("Amy")
l.prepend("Carol")
found = l.contains("Bob")
assert found is True
found = l.contains("Amy")
assert found is True
found = l.contains("Bob")
assert found is True
l = Slist()
l.prepend("Bob")
l.prepend("Amy")
found = l.contains("Bob")
assert found is True
found = l.contains("Dave")
assert found is False
