import datetime
import unittest
from decimal import Decimal

from twilio.base import deserialize


class Iso8601DateTestCase(unittest.TestCase):
    def test_parsable(self):
        actual = deserialize.iso8601_date("2015-01-02")
        expected = datetime.date(2015, 1, 2)
        self.assertEqual(expected, actual)

    def test_not_parsable(self):
        actual = deserialize.iso8601_date("not-a-date")
        self.assertEqual("not-a-date", actual)


class Iso8601DateTimeTestCase(unittest.TestCase):
    def test_parsable(self):
        actual = deserialize.iso8601_datetime("2015-01-02T03:04:05Z")
        expected = datetime.datetime(2015, 1, 2, 3, 4, 5, 0, datetime.timezone.utc)
        self.assertEqual(expected, actual)

    def test_not_parsable(self):
        actual = deserialize.iso8601_datetime("not-a-datetime")
        self.assertEqual("not-a-datetime", actual)


class DecimalTestCase(unittest.TestCase):
    def test_none(self):
        self.assertEqual(None, deserialize.decimal(None))

    def test_empty_string(self):
        self.assertEqual("", deserialize.decimal(""))

    def test_zero_string(self):
        self.assertEqual(Decimal("0.0000"), deserialize.decimal("0.0000"))

    def test_negative_string(self):
        self.assertEqual(Decimal("-0.0123"), deserialize.decimal("-0.0123"))

    def test_positive_string(self):
        self.assertEqual(Decimal("0.0123"), deserialize.decimal("0.0123"))

    def test_zero(self):
        self.assertEqual(0, deserialize.decimal(0))

    def test_negative(self):
        self.assertEqual(-0.0123, deserialize.decimal(-0.0123))

    def test_positive(self):
        self.assertEqual(0.0123, deserialize.decimal(0.0123))


class IntegerTestCase(unittest.TestCase):
    def test_none(self):
        self.assertEqual(None, deserialize.integer(None))

    def test_empty_string(self):
        self.assertEqual("", deserialize.integer(""))

    def test_zero_string(self):
        self.assertEqual(0, deserialize.integer("0"))

    def test_negative_string(self):
        self.assertEqual(-1, deserialize.integer("-1"))

    def test_positive_string(self):
        self.assertEqual(1, deserialize.integer("1"))

    def test_zero(self):
        self.assertEqual(0, deserialize.integer(0))

    def test_negative(self):
        self.assertEqual(-1, deserialize.integer(-1))

    def test_positive(self):
        self.assertEqual(1, deserialize.integer(1))