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# -*- coding: utf-8 -*-

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

from __future__ import absolute_import, print_function, unicode_literals

import unittest
import mozunit
from datetime import datetime
from taskgraph.util.time import (
    InvalidString,
    UnknownTimeMeasurement,
    value_of,
    json_time_from_now,
)


class FromNowTest(unittest.TestCase):
    def test_invalid_str(self):
        with self.assertRaises(InvalidString):
            value_of("wtfs")

    def test_missing_unit(self):
        with self.assertRaises(InvalidString):
            value_of("1")

    def test_missing_unknown_unit(self):
        with self.assertRaises(UnknownTimeMeasurement):
            value_of("1z")

    def test_value_of(self):
        self.assertEqual(value_of("1s").total_seconds(), 1)
        self.assertEqual(value_of("1 second").total_seconds(), 1)
        self.assertEqual(value_of("1min").total_seconds(), 60)
        self.assertEqual(value_of("1h").total_seconds(), 3600)
        self.assertEqual(value_of("1d").total_seconds(), 86400)
        self.assertEqual(value_of("1mo").total_seconds(), 2592000)
        self.assertEqual(value_of("1 month").total_seconds(), 2592000)
        self.assertEqual(value_of("1y").total_seconds(), 31536000)

        with self.assertRaises(UnknownTimeMeasurement):
            value_of("1m").total_seconds()  # ambiguous between minute and month

    def test_json_from_now_utc_now(self):
        # Just here to ensure we don't raise.
        json_time_from_now("1 years")

    def test_json_from_now(self):
        now = datetime(2014, 1, 1)
        self.assertEqual(json_time_from_now("1 years", now), "2015-01-01T00:00:00Z")
        self.assertEqual(json_time_from_now("6 days", now), "2014-01-07T00:00:00Z")


if __name__ == "__main__":
    mozunit.main()