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from unittest import TestCase

import simplejson as json


class TestBigintAsString(TestCase):
    # Python 2.5, at least the one that ships on Mac OS X, calculates
    # 2 ** 53 as 0! It manages to calculate 1 << 53 correctly.
    values = [(200, 200),
              ((1 << 53) - 1, 9007199254740991),
              ((1 << 53), '9007199254740992'),
              ((1 << 53) + 1, '9007199254740993'),
              (-100, -100),
              ((-1 << 53), '-9007199254740992'),
              ((-1 << 53) - 1, '-9007199254740993'),
              ((-1 << 53) + 1, -9007199254740991)]

    options = (
        {"bigint_as_string": True},
        {"int_as_string_bitcount": 53}
    )

    def test_ints(self):
        for opts in self.options:
            for val, expect in self.values:
                self.assertEqual(
                    val,
                    json.loads(json.dumps(val)))
                self.assertEqual(
                    expect,
                    json.loads(json.dumps(val, **opts)))

    def test_lists(self):
        for opts in self.options:
            for val, expect in self.values:
                val = [val, val]
                expect = [expect, expect]
                self.assertEqual(
                    val,
                    json.loads(json.dumps(val)))
                self.assertEqual(
                    expect,
                    json.loads(json.dumps(val, **opts)))

    def test_dicts(self):
        for opts in self.options:
            for val, expect in self.values:
                val = {'k': val}
                expect = {'k': expect}
                self.assertEqual(
                    val,
                    json.loads(json.dumps(val)))
                self.assertEqual(
                    expect,
                    json.loads(json.dumps(val, **opts)))

    def test_dict_keys(self):
        for opts in self.options:
            for val, _ in self.values:
                expect = {str(val): 'value'}
                val = {val: 'value'}
                self.assertEqual(
                    expect,
                    json.loads(json.dumps(val)))
                self.assertEqual(
                    expect,
                    json.loads(json.dumps(val, **opts)))