Coverage for tests/test_000_accretive/test_400_modules.py: 100%

1# vim: set filetype=python fileencoding=utf-8: 

2# -*- coding: utf-8 -*- 

3 

4#============================================================================# 

5# # 

6# Licensed under the Apache License, Version 2.0 (the "License"); # 

7# you may not use this file except in compliance with the License. # 

8# You may obtain a copy of the License at # 

9# # 

10# http://www.apache.org/licenses/LICENSE-2.0 # 

11# # 

12# Unless required by applicable law or agreed to in writing, software # 

13# distributed under the License is distributed on an "AS IS" BASIS, # 

14# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # 

15# See the License for the specific language governing permissions and # 

16# limitations under the License. # 

17# # 

18#============================================================================# 

19 

20 

21''' Assert correct function of modules. ''' 

22 

23# mypy: ignore-errors 

24# pylint: disable=attribute-defined-outside-init 

25# pylint: disable=invalid-name,magic-value-comparison,protected-access 

26 

27 

28import pytest 

29 

30from itertools import product 

31 

32from . import ( 

33 MODULES_QNAMES, 

34 PACKAGE_NAME, 

35 cache_import_module, 

36) 

37 

38 

39THESE_MODULE_QNAMES = tuple( 

40 name for name in MODULES_QNAMES if name.endswith( '.modules' ) ) 

41THESE_CLASSES_NAMES = ( 'Module', ) 

42 

43base = cache_import_module( f"{PACKAGE_NAME}.__" ) 

44exceptions = cache_import_module( f"{PACKAGE_NAME}.exceptions" ) 

45 

46 

47@pytest.mark.parametrize( 

48 'module_qname, class_name', 

49 product( THESE_MODULE_QNAMES, THESE_CLASSES_NAMES ) 

50) 

51def test_100_instantiation( module_qname, class_name ): 

52 ''' Class instantiates. ''' 

53 module = cache_import_module( module_qname ) 

54 Module = getattr( module, class_name ) 

55 obj = Module( 'foo' ) 

56 assert isinstance( obj, Module ) 

57 assert 'foo' == obj.__name__ 

58 

59 

60@pytest.mark.parametrize( 

61 'module_qname, class_name', 

62 product( THESE_MODULE_QNAMES, THESE_CLASSES_NAMES ) 

63) 

64def test_101_accretion( module_qname, class_name ): 

65 ''' Module accretes attributes. ''' 

66 module = cache_import_module( module_qname ) 

67 Module = getattr( module, class_name ) 

68 obj = Module( 'foo' ) 

69 obj.attr = 42 

70 with pytest.raises( exceptions.IndelibleAttributeError ): 

71 obj.attr = -1 

72 assert 42 == obj.attr 

73 with pytest.raises( exceptions.IndelibleAttributeError ): 

74 del obj.attr 

75 assert 42 == obj.attr 

76 

77 

78@pytest.mark.parametrize( 

79 'module_qname, class_name', 

80 product( THESE_MODULE_QNAMES, THESE_CLASSES_NAMES ) 

81) 

82def test_500_module_reclassification( module_qname, class_name ): 

83 ''' Modules are correctly reclassified. ''' 

84 module = cache_import_module( module_qname ) 

85 Module = getattr( module, class_name ) 

86 from types import ModuleType as Module_ 

87 m1 = Module_( 'm1' ) 

88 m2 = Module_( 'm2' ) 

89 m3 = Module( 'm3' ) 

90 attrs = { 'bar': 42, 'orb': True, 'm1': m1, 'm2': m2, 'm3': m3 } 

91 assert not isinstance( m1, Module ) 

92 assert not isinstance( m2, Module ) 

93 assert isinstance( m3, Module ) 

94 module.reclassify_modules( attrs ) 

95 assert isinstance( m1, Module ) 

96 assert isinstance( m2, Module ) 

97 assert isinstance( m3, Module ) 

98 

99 

100@pytest.mark.parametrize( 

101 'module_qname, class_name', 

102 product( THESE_MODULE_QNAMES, THESE_CLASSES_NAMES ) 

103) 

104def test_900_docstring_sanity( module_qname, class_name ): 

105 ''' Class has valid docstring. ''' 

106 module = cache_import_module( module_qname ) 

107 Object = getattr( module, class_name ) 

108 assert hasattr( Object, '__doc__' ) 

109 assert isinstance( Object.__doc__, str ) 

110 assert Object.__doc__ 

111 

112 

113@pytest.mark.parametrize( 

114 'module_qname, class_name', 

115 product( THESE_MODULE_QNAMES, THESE_CLASSES_NAMES ) 

116) 

117def test_902_docstring_mentions_accretion( module_qname, class_name ): 

118 ''' Class docstring mentions accretion. ''' 

119 module = cache_import_module( module_qname ) 

120 Object = getattr( module, class_name ) 

121 fragment = base.generate_docstring( 'module attributes accretion' ) 

122 assert fragment in Object.__doc__