| 4710c53d |
1 | import os\r |
| 2 | import re\r |
| 3 | import sys\r |
| 4 | \r |
| 5 | import unittest\r |
| 6 | \r |
| 7 | \r |
| 8 | class TestDiscovery(unittest.TestCase):\r |
| 9 | \r |
| 10 | # Heavily mocked tests so I can avoid hitting the filesystem\r |
| 11 | def test_get_name_from_path(self):\r |
| 12 | loader = unittest.TestLoader()\r |
| 13 | \r |
| 14 | loader._top_level_dir = '/foo'\r |
| 15 | name = loader._get_name_from_path('/foo/bar/baz.py')\r |
| 16 | self.assertEqual(name, 'bar.baz')\r |
| 17 | \r |
| 18 | if not __debug__:\r |
| 19 | # asserts are off\r |
| 20 | return\r |
| 21 | \r |
| 22 | with self.assertRaises(AssertionError):\r |
| 23 | loader._get_name_from_path('/bar/baz.py')\r |
| 24 | \r |
| 25 | def test_find_tests(self):\r |
| 26 | loader = unittest.TestLoader()\r |
| 27 | \r |
| 28 | original_listdir = os.listdir\r |
| 29 | def restore_listdir():\r |
| 30 | os.listdir = original_listdir\r |
| 31 | original_isfile = os.path.isfile\r |
| 32 | def restore_isfile():\r |
| 33 | os.path.isfile = original_isfile\r |
| 34 | original_isdir = os.path.isdir\r |
| 35 | def restore_isdir():\r |
| 36 | os.path.isdir = original_isdir\r |
| 37 | \r |
| 38 | path_lists = [['test1.py', 'test2.py', 'not_a_test.py', 'test_dir',\r |
| 39 | 'test.foo', 'test-not-a-module.py', 'another_dir'],\r |
| 40 | ['test3.py', 'test4.py', ]]\r |
| 41 | os.listdir = lambda path: path_lists.pop(0)\r |
| 42 | self.addCleanup(restore_listdir)\r |
| 43 | \r |
| 44 | def isdir(path):\r |
| 45 | return path.endswith('dir')\r |
| 46 | os.path.isdir = isdir\r |
| 47 | self.addCleanup(restore_isdir)\r |
| 48 | \r |
| 49 | def isfile(path):\r |
| 50 | # another_dir is not a package and so shouldn't be recursed into\r |
| 51 | return not path.endswith('dir') and not 'another_dir' in path\r |
| 52 | os.path.isfile = isfile\r |
| 53 | self.addCleanup(restore_isfile)\r |
| 54 | \r |
| 55 | loader._get_module_from_name = lambda path: path + ' module'\r |
| 56 | loader.loadTestsFromModule = lambda module: module + ' tests'\r |
| 57 | \r |
| 58 | top_level = os.path.abspath('/foo')\r |
| 59 | loader._top_level_dir = top_level\r |
| 60 | suite = list(loader._find_tests(top_level, 'test*.py'))\r |
| 61 | \r |
| 62 | expected = [name + ' module tests' for name in\r |
| 63 | ('test1', 'test2')]\r |
| 64 | expected.extend([('test_dir.%s' % name) + ' module tests' for name in\r |
| 65 | ('test3', 'test4')])\r |
| 66 | self.assertEqual(suite, expected)\r |
| 67 | \r |
| 68 | def test_find_tests_with_package(self):\r |
| 69 | loader = unittest.TestLoader()\r |
| 70 | \r |
| 71 | original_listdir = os.listdir\r |
| 72 | def restore_listdir():\r |
| 73 | os.listdir = original_listdir\r |
| 74 | original_isfile = os.path.isfile\r |
| 75 | def restore_isfile():\r |
| 76 | os.path.isfile = original_isfile\r |
| 77 | original_isdir = os.path.isdir\r |
| 78 | def restore_isdir():\r |
| 79 | os.path.isdir = original_isdir\r |
| 80 | \r |
| 81 | directories = ['a_directory', 'test_directory', 'test_directory2']\r |
| 82 | path_lists = [directories, [], [], []]\r |
| 83 | os.listdir = lambda path: path_lists.pop(0)\r |
| 84 | self.addCleanup(restore_listdir)\r |
| 85 | \r |
| 86 | os.path.isdir = lambda path: True\r |
| 87 | self.addCleanup(restore_isdir)\r |
| 88 | \r |
| 89 | os.path.isfile = lambda path: os.path.basename(path) not in directories\r |
| 90 | self.addCleanup(restore_isfile)\r |
| 91 | \r |
| 92 | class Module(object):\r |
| 93 | paths = []\r |
| 94 | load_tests_args = []\r |
| 95 | \r |
| 96 | def __init__(self, path):\r |
| 97 | self.path = path\r |
| 98 | self.paths.append(path)\r |
| 99 | if os.path.basename(path) == 'test_directory':\r |
| 100 | def load_tests(loader, tests, pattern):\r |
| 101 | self.load_tests_args.append((loader, tests, pattern))\r |
| 102 | return 'load_tests'\r |
| 103 | self.load_tests = load_tests\r |
| 104 | \r |
| 105 | def __eq__(self, other):\r |
| 106 | return self.path == other.path\r |
| 107 | \r |
| 108 | # Silence py3k warning\r |
| 109 | __hash__ = None\r |
| 110 | \r |
| 111 | loader._get_module_from_name = lambda name: Module(name)\r |
| 112 | def loadTestsFromModule(module, use_load_tests):\r |
| 113 | if use_load_tests:\r |
| 114 | raise self.failureException('use_load_tests should be False for packages')\r |
| 115 | return module.path + ' module tests'\r |
| 116 | loader.loadTestsFromModule = loadTestsFromModule\r |
| 117 | \r |
| 118 | loader._top_level_dir = '/foo'\r |
| 119 | # this time no '.py' on the pattern so that it can match\r |
| 120 | # a test package\r |
| 121 | suite = list(loader._find_tests('/foo', 'test*'))\r |
| 122 | \r |
| 123 | # We should have loaded tests from the test_directory package by calling load_tests\r |
| 124 | # and directly from the test_directory2 package\r |
| 125 | self.assertEqual(suite,\r |
| 126 | ['load_tests', 'test_directory2' + ' module tests'])\r |
| 127 | self.assertEqual(Module.paths, ['test_directory', 'test_directory2'])\r |
| 128 | \r |
| 129 | # load_tests should have been called once with loader, tests and pattern\r |
| 130 | self.assertEqual(Module.load_tests_args,\r |
| 131 | [(loader, 'test_directory' + ' module tests', 'test*')])\r |
| 132 | \r |
| 133 | def test_discover(self):\r |
| 134 | loader = unittest.TestLoader()\r |
| 135 | \r |
| 136 | original_isfile = os.path.isfile\r |
| 137 | original_isdir = os.path.isdir\r |
| 138 | def restore_isfile():\r |
| 139 | os.path.isfile = original_isfile\r |
| 140 | \r |
| 141 | os.path.isfile = lambda path: False\r |
| 142 | self.addCleanup(restore_isfile)\r |
| 143 | \r |
| 144 | orig_sys_path = sys.path[:]\r |
| 145 | def restore_path():\r |
| 146 | sys.path[:] = orig_sys_path\r |
| 147 | self.addCleanup(restore_path)\r |
| 148 | \r |
| 149 | full_path = os.path.abspath(os.path.normpath('/foo'))\r |
| 150 | with self.assertRaises(ImportError):\r |
| 151 | loader.discover('/foo/bar', top_level_dir='/foo')\r |
| 152 | \r |
| 153 | self.assertEqual(loader._top_level_dir, full_path)\r |
| 154 | self.assertIn(full_path, sys.path)\r |
| 155 | \r |
| 156 | os.path.isfile = lambda path: True\r |
| 157 | os.path.isdir = lambda path: True\r |
| 158 | \r |
| 159 | def restore_isdir():\r |
| 160 | os.path.isdir = original_isdir\r |
| 161 | self.addCleanup(restore_isdir)\r |
| 162 | \r |
| 163 | _find_tests_args = []\r |
| 164 | def _find_tests(start_dir, pattern):\r |
| 165 | _find_tests_args.append((start_dir, pattern))\r |
| 166 | return ['tests']\r |
| 167 | loader._find_tests = _find_tests\r |
| 168 | loader.suiteClass = str\r |
| 169 | \r |
| 170 | suite = loader.discover('/foo/bar/baz', 'pattern', '/foo/bar')\r |
| 171 | \r |
| 172 | top_level_dir = os.path.abspath('/foo/bar')\r |
| 173 | start_dir = os.path.abspath('/foo/bar/baz')\r |
| 174 | self.assertEqual(suite, "['tests']")\r |
| 175 | self.assertEqual(loader._top_level_dir, top_level_dir)\r |
| 176 | self.assertEqual(_find_tests_args, [(start_dir, 'pattern')])\r |
| 177 | self.assertIn(top_level_dir, sys.path)\r |
| 178 | \r |
| 179 | def test_discover_with_modules_that_fail_to_import(self):\r |
| 180 | loader = unittest.TestLoader()\r |
| 181 | \r |
| 182 | listdir = os.listdir\r |
| 183 | os.listdir = lambda _: ['test_this_does_not_exist.py']\r |
| 184 | isfile = os.path.isfile\r |
| 185 | os.path.isfile = lambda _: True\r |
| 186 | orig_sys_path = sys.path[:]\r |
| 187 | def restore():\r |
| 188 | os.path.isfile = isfile\r |
| 189 | os.listdir = listdir\r |
| 190 | sys.path[:] = orig_sys_path\r |
| 191 | self.addCleanup(restore)\r |
| 192 | \r |
| 193 | suite = loader.discover('.')\r |
| 194 | self.assertIn(os.getcwd(), sys.path)\r |
| 195 | self.assertEqual(suite.countTestCases(), 1)\r |
| 196 | test = list(list(suite)[0])[0] # extract test from suite\r |
| 197 | \r |
| 198 | with self.assertRaises(ImportError):\r |
| 199 | test.test_this_does_not_exist()\r |
| 200 | \r |
| 201 | def test_command_line_handling_parseArgs(self):\r |
| 202 | # Haha - take that uninstantiable class\r |
| 203 | program = object.__new__(unittest.TestProgram)\r |
| 204 | \r |
| 205 | args = []\r |
| 206 | def do_discovery(argv):\r |
| 207 | args.extend(argv)\r |
| 208 | program._do_discovery = do_discovery\r |
| 209 | program.parseArgs(['something', 'discover'])\r |
| 210 | self.assertEqual(args, [])\r |
| 211 | \r |
| 212 | program.parseArgs(['something', 'discover', 'foo', 'bar'])\r |
| 213 | self.assertEqual(args, ['foo', 'bar'])\r |
| 214 | \r |
| 215 | def test_command_line_handling_do_discovery_too_many_arguments(self):\r |
| 216 | class Stop(Exception):\r |
| 217 | pass\r |
| 218 | def usageExit():\r |
| 219 | raise Stop\r |
| 220 | \r |
| 221 | program = object.__new__(unittest.TestProgram)\r |
| 222 | program.usageExit = usageExit\r |
| 223 | \r |
| 224 | with self.assertRaises(Stop):\r |
| 225 | # too many args\r |
| 226 | program._do_discovery(['one', 'two', 'three', 'four'])\r |
| 227 | \r |
| 228 | \r |
| 229 | def test_command_line_handling_do_discovery_calls_loader(self):\r |
| 230 | program = object.__new__(unittest.TestProgram)\r |
| 231 | \r |
| 232 | class Loader(object):\r |
| 233 | args = []\r |
| 234 | def discover(self, start_dir, pattern, top_level_dir):\r |
| 235 | self.args.append((start_dir, pattern, top_level_dir))\r |
| 236 | return 'tests'\r |
| 237 | \r |
| 238 | program._do_discovery(['-v'], Loader=Loader)\r |
| 239 | self.assertEqual(program.verbosity, 2)\r |
| 240 | self.assertEqual(program.test, 'tests')\r |
| 241 | self.assertEqual(Loader.args, [('.', 'test*.py', None)])\r |
| 242 | \r |
| 243 | Loader.args = []\r |
| 244 | program = object.__new__(unittest.TestProgram)\r |
| 245 | program._do_discovery(['--verbose'], Loader=Loader)\r |
| 246 | self.assertEqual(program.test, 'tests')\r |
| 247 | self.assertEqual(Loader.args, [('.', 'test*.py', None)])\r |
| 248 | \r |
| 249 | Loader.args = []\r |
| 250 | program = object.__new__(unittest.TestProgram)\r |
| 251 | program._do_discovery([], Loader=Loader)\r |
| 252 | self.assertEqual(program.test, 'tests')\r |
| 253 | self.assertEqual(Loader.args, [('.', 'test*.py', None)])\r |
| 254 | \r |
| 255 | Loader.args = []\r |
| 256 | program = object.__new__(unittest.TestProgram)\r |
| 257 | program._do_discovery(['fish'], Loader=Loader)\r |
| 258 | self.assertEqual(program.test, 'tests')\r |
| 259 | self.assertEqual(Loader.args, [('fish', 'test*.py', None)])\r |
| 260 | \r |
| 261 | Loader.args = []\r |
| 262 | program = object.__new__(unittest.TestProgram)\r |
| 263 | program._do_discovery(['fish', 'eggs'], Loader=Loader)\r |
| 264 | self.assertEqual(program.test, 'tests')\r |
| 265 | self.assertEqual(Loader.args, [('fish', 'eggs', None)])\r |
| 266 | \r |
| 267 | Loader.args = []\r |
| 268 | program = object.__new__(unittest.TestProgram)\r |
| 269 | program._do_discovery(['fish', 'eggs', 'ham'], Loader=Loader)\r |
| 270 | self.assertEqual(program.test, 'tests')\r |
| 271 | self.assertEqual(Loader.args, [('fish', 'eggs', 'ham')])\r |
| 272 | \r |
| 273 | Loader.args = []\r |
| 274 | program = object.__new__(unittest.TestProgram)\r |
| 275 | program._do_discovery(['-s', 'fish'], Loader=Loader)\r |
| 276 | self.assertEqual(program.test, 'tests')\r |
| 277 | self.assertEqual(Loader.args, [('fish', 'test*.py', None)])\r |
| 278 | \r |
| 279 | Loader.args = []\r |
| 280 | program = object.__new__(unittest.TestProgram)\r |
| 281 | program._do_discovery(['-t', 'fish'], Loader=Loader)\r |
| 282 | self.assertEqual(program.test, 'tests')\r |
| 283 | self.assertEqual(Loader.args, [('.', 'test*.py', 'fish')])\r |
| 284 | \r |
| 285 | Loader.args = []\r |
| 286 | program = object.__new__(unittest.TestProgram)\r |
| 287 | program._do_discovery(['-p', 'fish'], Loader=Loader)\r |
| 288 | self.assertEqual(program.test, 'tests')\r |
| 289 | self.assertEqual(Loader.args, [('.', 'fish', None)])\r |
| 290 | self.assertFalse(program.failfast)\r |
| 291 | self.assertFalse(program.catchbreak)\r |
| 292 | \r |
| 293 | Loader.args = []\r |
| 294 | program = object.__new__(unittest.TestProgram)\r |
| 295 | program._do_discovery(['-p', 'eggs', '-s', 'fish', '-v', '-f', '-c'],\r |
| 296 | Loader=Loader)\r |
| 297 | self.assertEqual(program.test, 'tests')\r |
| 298 | self.assertEqual(Loader.args, [('fish', 'eggs', None)])\r |
| 299 | self.assertEqual(program.verbosity, 2)\r |
| 300 | self.assertTrue(program.failfast)\r |
| 301 | self.assertTrue(program.catchbreak)\r |
| 302 | \r |
| 303 | def test_detect_module_clash(self):\r |
| 304 | class Module(object):\r |
| 305 | __file__ = 'bar/foo.py'\r |
| 306 | sys.modules['foo'] = Module\r |
| 307 | full_path = os.path.abspath('foo')\r |
| 308 | original_listdir = os.listdir\r |
| 309 | original_isfile = os.path.isfile\r |
| 310 | original_isdir = os.path.isdir\r |
| 311 | \r |
| 312 | def cleanup():\r |
| 313 | os.listdir = original_listdir\r |
| 314 | os.path.isfile = original_isfile\r |
| 315 | os.path.isdir = original_isdir\r |
| 316 | del sys.modules['foo']\r |
| 317 | if full_path in sys.path:\r |
| 318 | sys.path.remove(full_path)\r |
| 319 | self.addCleanup(cleanup)\r |
| 320 | \r |
| 321 | def listdir(_):\r |
| 322 | return ['foo.py']\r |
| 323 | def isfile(_):\r |
| 324 | return True\r |
| 325 | def isdir(_):\r |
| 326 | return True\r |
| 327 | os.listdir = listdir\r |
| 328 | os.path.isfile = isfile\r |
| 329 | os.path.isdir = isdir\r |
| 330 | \r |
| 331 | loader = unittest.TestLoader()\r |
| 332 | \r |
| 333 | mod_dir = os.path.abspath('bar')\r |
| 334 | expected_dir = os.path.abspath('foo')\r |
| 335 | msg = re.escape(r"'foo' module incorrectly imported from %r. Expected %r. "\r |
| 336 | "Is this module globally installed?" % (mod_dir, expected_dir))\r |
| 337 | self.assertRaisesRegexp(\r |
| 338 | ImportError, '^%s$' % msg, loader.discover,\r |
| 339 | start_dir='foo', pattern='foo.py'\r |
| 340 | )\r |
| 341 | self.assertEqual(sys.path[0], full_path)\r |
| 342 | \r |
| 343 | \r |
| 344 | def test_discovery_from_dotted_path(self):\r |
| 345 | loader = unittest.TestLoader()\r |
| 346 | \r |
| 347 | tests = [self]\r |
| 348 | expectedPath = os.path.abspath(os.path.dirname(unittest.test.__file__))\r |
| 349 | \r |
| 350 | self.wasRun = False\r |
| 351 | def _find_tests(start_dir, pattern):\r |
| 352 | self.wasRun = True\r |
| 353 | self.assertEqual(start_dir, expectedPath)\r |
| 354 | return tests\r |
| 355 | loader._find_tests = _find_tests\r |
| 356 | suite = loader.discover('unittest.test')\r |
| 357 | self.assertTrue(self.wasRun)\r |
| 358 | self.assertEqual(suite._tests, tests)\r |
| 359 | \r |
| 360 | \r |
| 361 | if __name__ == '__main__':\r |
| 362 | unittest.main()\r |
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