| import json |
| import os |
| import unittest |
|
|
| from importlib import import_module |
|
|
| from faker.config import META_PROVIDERS_MODULES, PROVIDERS |
| from faker.generator import random |
| from faker.utils.datasets import add_dicts |
| from faker.utils.distribution import choices_distribution, choices_distribution_unique |
| from faker.utils.loading import find_available_locales, find_available_providers |
|
|
| TEST_DIR = os.path.dirname(__file__) |
|
|
|
|
| class UtilsTestCase(unittest.TestCase): |
| def test_choice_distribution(self): |
| a = ('a', 'b', 'c', 'd') |
| p = (0.5, 0.2, 0.2, 0.1) |
|
|
| sample = choices_distribution(a, p)[0] |
| assert sample in a |
|
|
| with open(os.path.join(TEST_DIR, 'random_state.json'), 'r') as fh: |
| random_state = json.load(fh) |
| random_state[1] = tuple(random_state[1]) |
|
|
| random.setstate(random_state) |
| samples = choices_distribution(a, p, length=100) |
| a_pop = len([i for i in samples if i == 'a']) |
| b_pop = len([i for i in samples if i == 'b']) |
| c_pop = len([i for i in samples if i == 'c']) |
| d_pop = len([i for i in samples if i == 'd']) |
|
|
| boundaries = [] |
| tolerance = 5 |
| for probability in p: |
| boundaries.append([100 * probability + tolerance, 100 * probability - tolerance]) |
|
|
| assert boundaries[0][0] > a_pop > boundaries[0][1] |
| assert boundaries[1][0] > b_pop > boundaries[1][1] |
| assert boundaries[2][0] > c_pop > boundaries[2][1] |
| assert boundaries[3][0] > d_pop > boundaries[3][1] |
|
|
| def test_choices_distribution_unique(self): |
| a = ('a', 'b', 'c', 'd') |
| p = (0.25, 0.25, 0.25, 0.25) |
| with self.assertRaises(AssertionError): |
| choices_distribution_unique(a, p, length=5) |
|
|
| samples = choices_distribution_unique(a, p, length=4) |
| assert len(set(samples)) == len(samples) |
|
|
| def test_add_dicts(self): |
| t1 = {'a': 1, 'b': 2} |
| t2 = {'b': 1, 'c': 3} |
| t3 = {'d': 4} |
|
|
| result = add_dicts(t1, t2, t3) |
| assert result == {'a': 1, 'c': 3, 'b': 3, 'd': 4} |
|
|
| def test_find_available_locales(self): |
| result = find_available_locales(PROVIDERS) |
| assert len(result) != 0 |
|
|
| def test_find_available_providers(self): |
| modules = [import_module(path) for path in META_PROVIDERS_MODULES] |
| providers = find_available_providers(modules) |
|
|
| expected_providers = list(map(str, [ |
| 'faker.providers.address', |
| 'faker.providers.automotive', |
| 'faker.providers.bank', |
| 'faker.providers.barcode', |
| 'faker.providers.color', |
| 'faker.providers.company', |
| 'faker.providers.credit_card', |
| 'faker.providers.currency', |
| 'faker.providers.date_time', |
| 'faker.providers.file', |
| 'faker.providers.geo', |
| 'faker.providers.internet', |
| 'faker.providers.isbn', |
| 'faker.providers.job', |
| 'faker.providers.lorem', |
| 'faker.providers.misc', |
| 'faker.providers.person', |
| 'faker.providers.phone_number', |
| 'faker.providers.profile', |
| 'faker.providers.python', |
| 'faker.providers.ssn', |
| 'faker.providers.user_agent', |
| ])) |
| assert providers == expected_providers |
|
|
