| Tim Hammerquist | 545ba4e | 2017-12-12 02:36:17 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python -tt |
| 2 | |
| 3 | """ |
| 4 | unittests.test_result |
| 5 | """ |
| 6 | |
| 7 | try: |
| 8 | import unittest2 as unittest |
| 9 | except ImportError: |
| 10 | import unittest |
| 11 | |
| 12 | import mock |
| 13 | import StringIO |
| 14 | |
| 15 | import dbsign.result as R |
| 16 | |
| 17 | |
| 18 | class TestResult(unittest.TestCase): |
| 19 | def setUp(self): |
| 20 | self.msg = "The quick brown fox." |
| 21 | |
| 22 | def test_result_failure(self): |
| 23 | value = self.msg |
| 24 | failure = R.Failure(value) |
| 25 | |
| 26 | self.assertFalse(failure.checked) |
| 27 | self.assertEqual(value, failure.value) |
| 28 | self.assertFalse(failure) |
| 29 | self.assertTrue(failure.checked) |
| 30 | self.assertRegexpMatches(repr(failure), value) |
| 31 | |
| 32 | def test_result_success(self): |
| 33 | value = self.msg |
| 34 | success = R.Success(value) |
| 35 | |
| 36 | self.assertFalse(success.checked) |
| 37 | self.assertEqual(success.value, value) |
| 38 | self.assertTrue(success) |
| 39 | self.assertTrue(success.checked) |
| 40 | self.assertRegexpMatches(repr(success), value) |
| 41 | |
| 42 | def test_abstract(self): |
| 43 | text = self.msg |
| 44 | error_text = "does not support boolean evaluation" |
| 45 | res = R.Result(text) |
| 46 | |
| 47 | self.assertEqual(text, res.value) |
| 48 | with self.assertRaisesRegexp(NotImplementedError, error_text): |
| 49 | bool(res) |
| 50 | |
| 51 | def test_renew(self): |
| 52 | msg = self.msg |
| 53 | |
| 54 | def fn(res_type): |
| 55 | # create instance |
| 56 | res = res_type(msg) |
| 57 | self.assertFalse(res.checked) |
| 58 | # invoke __nonzero__() |
| 59 | bool(res) |
| 60 | self.assertTrue(res.checked) |
| 61 | # return "renewed" object |
| 62 | return res.renew() |
| 63 | |
| 64 | for res_type in (R.Success, R.Failure): |
| 65 | with self.subTest(resultType=res_type.__name__): |
| 66 | res = fn(res_type) |
| 67 | self.assertEqual(res_type, res.__class__) |
| 68 | self.assertFalse(res.checked) |
| 69 | bool(res) |
| 70 | self.assertTrue(res.checked) |
| 71 | |
| 72 | @mock.patch('sys.stderr', new_callable=StringIO.StringIO) |
| 73 | def test_unchecked_asserts(self, mock_stderr): |
| 74 | for res_type in (R.Result, R.Success, R.Failure): |
| 75 | with self.subTest(resultType=res_type.__name__): |
| 76 | with self.assertRaises(AssertionError): |
| 77 | # generate an instance of the passed class |
| 78 | res = res_type(res_type.__name__) |
| 79 | # call destructor to simulate program termination |
| 80 | res.__del__() |