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Diffstat (limited to 'scripts/external_libs/python-daemon-2.0.5/test/test_metadata.py')
| -rw-r--r-- | scripts/external_libs/python-daemon-2.0.5/test/test_metadata.py | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/scripts/external_libs/python-daemon-2.0.5/test/test_metadata.py b/scripts/external_libs/python-daemon-2.0.5/test/test_metadata.py new file mode 100644 index 00000000..692753f4 --- /dev/null +++ b/scripts/external_libs/python-daemon-2.0.5/test/test_metadata.py @@ -0,0 +1,380 @@ +# -*- coding: utf-8 -*- +# +# test/test_metadata.py +# Part of ‘python-daemon’, an implementation of PEP 3143. +# +# Copyright © 2008–2015 Ben Finney <ben+python@benfinney.id.au> +# +# This is free software: you may copy, modify, and/or distribute this work +# under the terms of the Apache License, version 2.0 as published by the +# Apache Software Foundation. +# No warranty expressed or implied. See the file ‘LICENSE.ASF-2’ for details. + +""" Unit test for ‘_metadata’ private module. + """ + +from __future__ import (absolute_import, unicode_literals) + +import sys +import errno +import re +try: + # Python 3 standard library. + import urllib.parse as urlparse +except ImportError: + # Python 2 standard library. + import urlparse +import functools +import collections +import json + +import pkg_resources +import mock +import testtools.helpers +import testtools.matchers +import testscenarios + +from . import scaffold +from .scaffold import (basestring, unicode) + +import daemon._metadata as metadata + + +class HasAttribute(testtools.matchers.Matcher): + """ A matcher to assert an object has a named attribute. """ + + def __init__(self, name): + self.attribute_name = name + + def match(self, instance): + """ Assert the object `instance` has an attribute named `name`. """ + result = None + if not testtools.helpers.safe_hasattr(instance, self.attribute_name): + result = AttributeNotFoundMismatch(instance, self.attribute_name) + return result + + +class AttributeNotFoundMismatch(testtools.matchers.Mismatch): + """ The specified instance does not have the named attribute. """ + + def __init__(self, instance, name): + self.instance = instance + self.attribute_name = name + + def describe(self): + """ Emit a text description of this mismatch. """ + text = ( + "{instance!r}" + " has no attribute named {name!r}").format( + instance=self.instance, name=self.attribute_name) + return text + + +class metadata_value_TestCase(scaffold.TestCaseWithScenarios): + """ Test cases for metadata module values. """ + + expected_str_attributes = set([ + 'version_installed', + 'author', + 'copyright', + 'license', + 'url', + ]) + + scenarios = [ + (name, {'attribute_name': name}) + for name in expected_str_attributes] + for (name, params) in scenarios: + if name == 'version_installed': + # No duck typing, this attribute might be None. + params['ducktype_attribute_name'] = NotImplemented + continue + # Expect an attribute of ‘str’ to test this value. + params['ducktype_attribute_name'] = 'isdigit' + + def test_module_has_attribute(self): + """ Metadata should have expected value as a module attribute. """ + self.assertThat( + metadata, HasAttribute(self.attribute_name)) + + def test_module_attribute_has_duck_type(self): + """ Metadata value should have expected duck-typing attribute. """ + if self.ducktype_attribute_name == NotImplemented: + self.skipTest("Can't assert this attribute's type") + instance = getattr(metadata, self.attribute_name) + self.assertThat( + instance, HasAttribute(self.ducktype_attribute_name)) + + +class parse_person_field_TestCase( + testscenarios.WithScenarios, testtools.TestCase): + """ Test cases for ‘get_latest_version’ function. """ + + scenarios = [ + ('simple', { + 'test_person': "Foo Bar <foo.bar@example.com>", + 'expected_result': ("Foo Bar", "foo.bar@example.com"), + }), + ('empty', { + 'test_person': "", + 'expected_result': (None, None), + }), + ('none', { + 'test_person': None, + 'expected_error': TypeError, + }), + ('no email', { + 'test_person': "Foo Bar", + 'expected_result': ("Foo Bar", None), + }), + ] + + def test_returns_expected_result(self): + """ Should return expected result. """ + if hasattr(self, 'expected_error'): + self.assertRaises( + self.expected_error, + metadata.parse_person_field, self.test_person) + else: + result = metadata.parse_person_field(self.test_person) + self.assertEqual(self.expected_result, result) + + +class YearRange_TestCase(scaffold.TestCaseWithScenarios): + """ Test cases for ‘YearRange’ class. """ + + scenarios = [ + ('simple', { + 'begin_year': 1970, + 'end_year': 1979, + 'expected_text': "1970–1979", + }), + ('same year', { + 'begin_year': 1970, + 'end_year': 1970, + 'expected_text': "1970", + }), + ('no end year', { + 'begin_year': 1970, + 'end_year': None, + 'expected_text': "1970", + }), + ] + + def setUp(self): + """ Set up test fixtures. """ + super(YearRange_TestCase, self).setUp() + + self.test_instance = metadata.YearRange( + self.begin_year, self.end_year) + + def test_text_representation_as_expected(self): + """ Text representation should be as expected. """ + result = unicode(self.test_instance) + self.assertEqual(result, self.expected_text) + + +FakeYearRange = collections.namedtuple('FakeYearRange', ['begin', 'end']) + +@mock.patch.object(metadata, 'YearRange', new=FakeYearRange) +class make_year_range_TestCase(scaffold.TestCaseWithScenarios): + """ Test cases for ‘make_year_range’ function. """ + + scenarios = [ + ('simple', { + 'begin_year': "1970", + 'end_date': "1979-01-01", + 'expected_range': FakeYearRange(begin=1970, end=1979), + }), + ('same year', { + 'begin_year': "1970", + 'end_date': "1970-01-01", + 'expected_range': FakeYearRange(begin=1970, end=1970), + }), + ('no end year', { + 'begin_year': "1970", + 'end_date': None, + 'expected_range': FakeYearRange(begin=1970, end=None), + }), + ('end date UNKNOWN token', { + 'begin_year': "1970", + 'end_date': "UNKNOWN", + 'expected_range': FakeYearRange(begin=1970, end=None), + }), + ('end date FUTURE token', { + 'begin_year': "1970", + 'end_date': "FUTURE", + 'expected_range': FakeYearRange(begin=1970, end=None), + }), + ] + + def test_result_matches_expected_range(self): + """ Result should match expected YearRange. """ + result = metadata.make_year_range(self.begin_year, self.end_date) + self.assertEqual(result, self.expected_range) + + +class metadata_content_TestCase(scaffold.TestCase): + """ Test cases for content of metadata. """ + + def test_copyright_formatted_correctly(self): + """ Copyright statement should be formatted correctly. """ + regex_pattern = ( + "Copyright © " + "\d{4}" # four-digit year + "(?:–\d{4})?" # optional range dash and ending four-digit year + ) + regex_flags = re.UNICODE + self.assertThat( + metadata.copyright, + testtools.matchers.MatchesRegex(regex_pattern, regex_flags)) + + def test_author_formatted_correctly(self): + """ Author information should be formatted correctly. """ + regex_pattern = ( + ".+ " # name + "<[^>]+>" # email address, in angle brackets + ) + regex_flags = re.UNICODE + self.assertThat( + metadata.author, + testtools.matchers.MatchesRegex(regex_pattern, regex_flags)) + + def test_copyright_contains_author(self): + """ Copyright information should contain author information. """ + self.assertThat( + metadata.copyright, + testtools.matchers.Contains(metadata.author)) + + def test_url_parses_correctly(self): + """ Homepage URL should parse correctly. """ + result = urlparse.urlparse(metadata.url) + self.assertIsInstance( + result, urlparse.ParseResult, + "URL value {url!r} did not parse correctly".format( + url=metadata.url)) + + +try: + FileNotFoundError +except NameError: + # Python 2 uses IOError. + FileNotFoundError = functools.partial(IOError, errno.ENOENT) + +version_info_filename = "version_info.json" + +def fake_func_has_metadata(testcase, resource_name): + """ Fake the behaviour of ‘pkg_resources.Distribution.has_metadata’. """ + if ( + resource_name != testcase.expected_resource_name + or not hasattr(testcase, 'test_version_info')): + return False + return True + + +def fake_func_get_metadata(testcase, resource_name): + """ Fake the behaviour of ‘pkg_resources.Distribution.get_metadata’. """ + if not fake_func_has_metadata(testcase, resource_name): + error = FileNotFoundError(resource_name) + raise error + content = testcase.test_version_info + return content + + +def fake_func_get_distribution(testcase, distribution_name): + """ Fake the behaviour of ‘pkg_resources.get_distribution’. """ + if distribution_name != metadata.distribution_name: + raise pkg_resources.DistributionNotFound + if hasattr(testcase, 'get_distribution_error'): + raise testcase.get_distribution_error + mock_distribution = testcase.mock_distribution + mock_distribution.has_metadata.side_effect = functools.partial( + fake_func_has_metadata, testcase) + mock_distribution.get_metadata.side_effect = functools.partial( + fake_func_get_metadata, testcase) + return mock_distribution + + +@mock.patch.object(metadata, 'distribution_name', new="mock-dist") +class get_distribution_version_info_TestCase(scaffold.TestCaseWithScenarios): + """ Test cases for ‘get_distribution_version_info’ function. """ + + default_version_info = { + 'release_date': "UNKNOWN", + 'version': "UNKNOWN", + 'maintainer': "UNKNOWN", + } + + scenarios = [ + ('version 0.0', { + 'test_version_info': json.dumps({ + 'version': "0.0", + }), + 'expected_version_info': {'version': "0.0"}, + }), + ('version 1.0', { + 'test_version_info': json.dumps({ + 'version': "1.0", + }), + 'expected_version_info': {'version': "1.0"}, + }), + ('file lorem_ipsum.json', { + 'version_info_filename': "lorem_ipsum.json", + 'test_version_info': json.dumps({ + 'version': "1.0", + }), + 'expected_version_info': {'version': "1.0"}, + }), + ('not installed', { + 'get_distribution_error': pkg_resources.DistributionNotFound(), + 'expected_version_info': default_version_info, + }), + ('no version_info', { + 'expected_version_info': default_version_info, + }), + ] + + def setUp(self): + """ Set up test fixtures. """ + super(get_distribution_version_info_TestCase, self).setUp() + + if hasattr(self, 'expected_resource_name'): + self.test_args = {'filename': self.expected_resource_name} + else: + self.test_args = {} + self.expected_resource_name = version_info_filename + + self.mock_distribution = mock.MagicMock() + func_patcher_get_distribution = mock.patch.object( + pkg_resources, 'get_distribution') + func_patcher_get_distribution.start() + self.addCleanup(func_patcher_get_distribution.stop) + pkg_resources.get_distribution.side_effect = functools.partial( + fake_func_get_distribution, self) + + def test_requests_installed_distribution(self): + """ The package distribution should be retrieved. """ + expected_distribution_name = metadata.distribution_name + version_info = metadata.get_distribution_version_info(**self.test_args) + pkg_resources.get_distribution.assert_called_with( + expected_distribution_name) + + def test_requests_specified_filename(self): + """ The specified metadata resource name should be requested. """ + if hasattr(self, 'get_distribution_error'): + self.skipTest("No access to distribution") + version_info = metadata.get_distribution_version_info(**self.test_args) + self.mock_distribution.has_metadata.assert_called_with( + self.expected_resource_name) + + def test_result_matches_expected_items(self): + """ The result should match the expected items. """ + version_info = metadata.get_distribution_version_info(**self.test_args) + self.assertEqual(self.expected_version_info, version_info) + + +# Local variables: +# coding: utf-8 +# mode: python +# End: +# vim: fileencoding=utf-8 filetype=python : |