# Copyright 2020 The FedLearner Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# coding: utf-8

import unittest
import random
import numpy as np
import time
import logging
import sys
from fedlearner.data_join.join_expr import expression

class TestExpression(unittest.TestCase):
    def setUp(self):
        pass

    def test_parser(self):
        expr_dict = {
            "click_id": ["click_id"],
            "click_id or (req_id, cid)": ["click_id", ["req_id", "cid"]],
            "(req_id, cid)": [["req_id", "cid"]],
            "click_id or (req_id, cid, lt(event_time))": ["click_id", ["req_id", "cid"]],
            "click_id or (req_id, cid, lt(event_time)) or callback": ["click_id", ["req_id", "cid"], "callback"],
        }
        for key, value in expr_dict.items():
            expr = expression.Expr(key)
            print(expr)
            self.assertEqual(value, expr.keys())


    def tearDown(self):
        pass

if __name__ == "__main__":
    logging.basicConfig(level=logging.DEBUG)
    unittest.main()
