Coverage for tests/test_api.py: 91.87%

1"""Tests for our own API exposition.""" 

2 

3from __future__ import annotations 

4 

5from collections import defaultdict 

6from pathlib import Path 

7from typing import TYPE_CHECKING 

8 

9import griffe 

10import pytest 

11from mkdocstrings import Inventory 

12 

13import griffe_typingdoc 

14 

15if TYPE_CHECKING: 

16 from collections.abc import Iterator 

17 

18 

19@pytest.fixture(name="loader", scope="module") 

20def _fixture_loader() -> griffe.GriffeLoader: 

21 loader = griffe.GriffeLoader() 

22 loader.load("griffe_typingdoc") 

23 loader.resolve_aliases() 

24 return loader 

25 

26 

27@pytest.fixture(name="internal_api", scope="module") 

28def _fixture_internal_api(loader: griffe.GriffeLoader) -> griffe.Module: 

29 return loader.modules_collection["griffe_typingdoc._internal"] 

30 

31 

32@pytest.fixture(name="public_api", scope="module") 

33def _fixture_public_api(loader: griffe.GriffeLoader) -> griffe.Module: 

34 return loader.modules_collection["griffe_typingdoc"] 

35 

36 

37def _yield_public_objects( 

38 obj: griffe.Module | griffe.Class, 

39 *, 

40 modules: bool = False, 

41 modulelevel: bool = True, 

42 inherited: bool = False, 

43 special: bool = False, 

44) -> Iterator[griffe.Object | griffe.Alias]: 

45 for member in obj.all_members.values() if inherited else obj.members.values(): 

46 try: 

47 if member.is_module: 

48 if member.is_alias or not member.is_public: 

49 continue 

50 if modules: 50 ↛ 51line 50 didn't jump to line 51 because the condition on line 50 was never true

51 yield member 

52 yield from _yield_public_objects( 

53 member, # type: ignore[arg-type] 

54 modules=modules, 

55 modulelevel=modulelevel, 

56 inherited=inherited, 

57 special=special, 

58 ) 

59 elif member.is_public and (special or not member.is_special): 

60 yield member 

61 else: 

62 continue 

63 if member.is_class and not modulelevel: 

64 yield from _yield_public_objects( 

65 member, # type: ignore[arg-type] 

66 modules=modules, 

67 modulelevel=False, 

68 inherited=inherited, 

69 special=special, 

70 ) 

71 except (griffe.AliasResolutionError, griffe.CyclicAliasError): 

72 continue 

73 

74 

75@pytest.fixture(name="modulelevel_internal_objects", scope="module") 

76def _fixture_modulelevel_internal_objects(internal_api: griffe.Module) -> list[griffe.Object | griffe.Alias]: 

77 return list(_yield_public_objects(internal_api, modulelevel=True)) 

78 

79 

80@pytest.fixture(name="internal_objects", scope="module") 

81def _fixture_internal_objects(internal_api: griffe.Module) -> list[griffe.Object | griffe.Alias]: 

82 return list(_yield_public_objects(internal_api, modulelevel=False, special=True)) 

83 

84 

85@pytest.fixture(name="public_objects", scope="module") 

86def _fixture_public_objects(public_api: griffe.Module) -> list[griffe.Object | griffe.Alias]: 

87 return list(_yield_public_objects(public_api, modulelevel=False, inherited=True, special=True)) 

88 

89 

90@pytest.fixture(name="inventory", scope="module") 

91def _fixture_inventory() -> Inventory: 

92 inventory_file = Path(__file__).parent.parent / "site" / "objects.inv" 

93 if not inventory_file.exists(): 93 ↛ 94line 93 didn't jump to line 94 because the condition on line 93 was never true

94 pytest.skip("The objects inventory is not available.") # ty: ignore[call-non-callable] 

95 with inventory_file.open("rb") as file: 

96 return Inventory.parse_sphinx(file) 

97 

98 

99def test_exposed_objects(modulelevel_internal_objects: list[griffe.Object | griffe.Alias]) -> None: 

100 """All public objects in the internal API are exposed under `griffe_typingdoc`.""" 

101 not_exposed = [ 

102 obj.path 

103 for obj in modulelevel_internal_objects 

104 if obj.name not in griffe_typingdoc.__all__ or not hasattr(griffe_typingdoc, obj.name) 

105 ] 

106 assert not not_exposed, "Objects not exposed:\n" + "\n".join(sorted(not_exposed)) 

107 

108 

109def test_unique_names(modulelevel_internal_objects: list[griffe.Object | griffe.Alias]) -> None: 

110 """All internal objects have unique names.""" 

111 names_to_paths = defaultdict(list) 

112 for obj in modulelevel_internal_objects: 

113 names_to_paths[obj.name].append(obj.path) 

114 non_unique = [paths for paths in names_to_paths.values() if len(paths) > 1] 

115 assert not non_unique, "Non-unique names:\n" + "\n".join(str(paths) for paths in non_unique) 

116 

117 

118def test_single_locations(public_api: griffe.Module) -> None: 

119 """All objects have a single public location.""" 

120 

121 def _public_path(obj: griffe.Object | griffe.Alias) -> bool: 

122 return obj.is_public and (obj.parent is None or _public_path(obj.parent)) 

123 

124 multiple_locations = {} 

125 for obj_name in griffe_typingdoc.__all__: 

126 obj = public_api[obj_name] 

127 if obj.aliases and ( 127 ↛ 130line 127 didn't jump to line 130 because the condition on line 127 was never true

128 public_aliases := [path for path, alias in obj.aliases.items() if path != obj.path and _public_path(alias)] 

129 ): 

130 multiple_locations[obj.path] = public_aliases 

131 assert not multiple_locations, "Multiple public locations:\n" + "\n".join( 

132 f"{path}: {aliases}" for path, aliases in multiple_locations.items() 

133 ) 

134 

135 

136def test_api_matches_inventory(inventory: Inventory, public_objects: list[griffe.Object | griffe.Alias]) -> None: 

137 """All public objects are added to the inventory.""" 

138 ignore_names = {"__getattr__", "__init__", "__repr__", "__str__", "__post_init__"} 

139 not_in_inventory = [ 

140 f"{obj.relative_filepath}:{obj.lineno}: {obj.path}" 

141 for obj in public_objects 

142 if obj.name not in ignore_names and obj.path not in inventory 

143 ] 

144 msg = "Objects not in the inventory (try running `make run mkdocs build`):\n{paths}" 

145 assert not not_in_inventory, msg.format(paths="\n".join(sorted(not_in_inventory))) 

146 

147 

148def test_inventory_matches_api( 

149 inventory: Inventory, 

150 public_objects: list[griffe.Object | griffe.Alias], 

151 loader: griffe.GriffeLoader, 

152) -> None: 

153 """The inventory doesn't contain any additional Python object.""" 

154 not_in_api = [] 

155 public_api_paths = {obj.path for obj in public_objects} 

156 public_api_paths.add("griffe_typingdoc") 

157 for item in inventory.values(): 

158 if ( 

159 item.domain == "py" 

160 and "(" not in item.name 

161 and (item.name == "griffe_typingdoc" or item.name.startswith("griffe_typingdoc.")) 

162 ): 

163 obj = loader.modules_collection[item.name] 

164 if obj.path not in public_api_paths and not any(path in public_api_paths for path in obj.aliases): 164 ↛ 165line 164 didn't jump to line 165 because the condition on line 164 was never true

165 not_in_api.append(item.name) 

166 msg = "Inventory objects not in public API (try running `make run mkdocs build`):\n{paths}" 

167 assert not not_in_api, msg.format(paths="\n".join(sorted(not_in_api))) 

168 

169 

170def test_no_module_docstrings_in_internal_api(internal_api: griffe.Module) -> None: 

171 """No module docstrings should be written in our internal API. 

172 

173 The reasoning is that docstrings are addressed to users of the public API, 

174 but internal modules are not exposed to users, so they should not have docstrings. 

175 """ 

176 

177 def _modules(obj: griffe.Module) -> Iterator[griffe.Module]: 

178 for member in obj.modules.values(): 

179 yield member 

180 yield from _modules(member) 

181 

182 for obj in _modules(internal_api): 

183 assert not obj.docstring