#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
#

import unittest

from packaging import version

from skywalking.plugins import _operators, check


class TestVersionCheck(unittest.TestCase):
    def test_operators(self):
        # <
        f = _operators.get("<")
        v1 = version.parse("1.0.0")
        v2 = version.parse("1.0.1")
        self.assertTrue(f(v1, v2))
        self.assertFalse(f(v2, v1))

        v2 = version.parse("1.0.0")
        self.assertFalse(f(v1, v2))

        # <=
        f = _operators.get("<=")
        v1 = version.parse("1.0")
        v2 = version.parse("1.0")
        self.assertTrue(v1, v2)

        v2 = version.parse("1.1.0")
        self.assertTrue(f(v1, v2))
        self.assertFalse(f(v2, v1))

        # =
        f = _operators.get("==")
        v1 = version.parse("1.0.0")
        v2 = version.parse("1.0.0")
        self.assertTrue(f(v1, v2))

        v2 = version.parse("1.0.1")
        self.assertFalse(f(v1, v2))

        # >=
        f = _operators.get(">=")
        v1 = version.parse("1.0.0")
        v2 = version.parse("1.0.0")
        self.assertTrue(f(v1, v2))

        v2 = version.parse("1.0.1")
        self.assertFalse(f(v1, v2))
        self.assertTrue(f(v2, v1))

        # >
        f = _operators.get(">")
        v1 = version.parse("1.0.0")
        v2 = version.parse("1.0.1")
        self.assertFalse(f(v1, v2))
        self.assertTrue(f(v2, v1))

        v2 = version.parse("1.0.0")
        self.assertFalse(f(v1, v2))

        # !=
        f = _operators.get("!=")
        v1 = version.parse("1.0.0")
        v2 = version.parse("1.0.1")
        self.assertTrue(f(v1, v2))

        v2 = version.parse("1.0.0")
        self.assertFalse(f(v1, v2))

    def test_version_check(self):
        current_version = version.parse("1.8.0")

        self.assertTrue(check(">1.1.0", current_version))
        self.assertTrue(check(">=1.0.0", current_version))
        self.assertTrue(check("<2.0.0", current_version))
        self.assertTrue(check("<=1.8.0", current_version))
        self.assertTrue(check("==1.8.0", current_version))
        self.assertTrue(check("!=1.6.0", current_version))

        self.assertFalse(check(">1.9.0", current_version))
        self.assertFalse(check(">=1.8.1", current_version))
        self.assertFalse(check("<1.8.0", current_version))
        self.assertFalse(check("<=1.7.0", current_version))
        self.assertFalse(check("==1.0.0", current_version))
        self.assertFalse(check("!=1.8.0", current_version))