def test_ttl():
req_str = 'time live 4'
db_cla.ttl_req(req_str)
result1 = db_cla.get_req('time')
assert result1 == 'live'
time.sleep(4)
result2 = db_cla.get_req('time')
assert result2 == 'None'
def test_get():
req_str = 'hello world'
db_cla.set_req(req_str)
result = db_cla.get_req('name')
assert result == 'hello'
def test_del():
db_cla.set_req(['python', 'code'])
result1 = db_cla.del_req(['python'])
result2 = db_cla.get_req(['python'])
assert result1 == 'OK' and result2 == 'None'
def test_del():
req_str = 'python code'
db_cla.set_req(req_str)
result1 = db_cla.del_req('python')
result2 = db_cla.get_req('python')
assert result1 == 'OK' and result2 == 'None'
def test_get():
db_cla.set_req(['hello', 'world'])
result = db_cla.get_req(['name'])
assert result == 'hello'