| 1 | n/a | from .. import util |
|---|
| 2 | n/a | import sys |
|---|
| 3 | n/a | import unittest |
|---|
| 4 | n/a | from test import support |
|---|
| 5 | n/a | |
|---|
| 6 | n/a | |
|---|
| 7 | n/a | class ParentModuleTests: |
|---|
| 8 | n/a | |
|---|
| 9 | n/a | """Importing a submodule should import the parent modules.""" |
|---|
| 10 | n/a | |
|---|
| 11 | n/a | def test_import_parent(self): |
|---|
| 12 | n/a | with util.mock_spec('pkg.__init__', 'pkg.module') as mock: |
|---|
| 13 | n/a | with util.import_state(meta_path=[mock]): |
|---|
| 14 | n/a | module = self.__import__('pkg.module') |
|---|
| 15 | n/a | self.assertIn('pkg', sys.modules) |
|---|
| 16 | n/a | |
|---|
| 17 | n/a | def test_bad_parent(self): |
|---|
| 18 | n/a | with util.mock_spec('pkg.module') as mock: |
|---|
| 19 | n/a | with util.import_state(meta_path=[mock]): |
|---|
| 20 | n/a | with self.assertRaises(ImportError) as cm: |
|---|
| 21 | n/a | self.__import__('pkg.module') |
|---|
| 22 | n/a | self.assertEqual(cm.exception.name, 'pkg') |
|---|
| 23 | n/a | |
|---|
| 24 | n/a | def test_raising_parent_after_importing_child(self): |
|---|
| 25 | n/a | def __init__(): |
|---|
| 26 | n/a | import pkg.module |
|---|
| 27 | n/a | 1/0 |
|---|
| 28 | n/a | mock = util.mock_spec('pkg.__init__', 'pkg.module', |
|---|
| 29 | n/a | module_code={'pkg': __init__}) |
|---|
| 30 | n/a | with mock: |
|---|
| 31 | n/a | with util.import_state(meta_path=[mock]): |
|---|
| 32 | n/a | with self.assertRaises(ZeroDivisionError): |
|---|
| 33 | n/a | self.__import__('pkg') |
|---|
| 34 | n/a | self.assertNotIn('pkg', sys.modules) |
|---|
| 35 | n/a | self.assertIn('pkg.module', sys.modules) |
|---|
| 36 | n/a | with self.assertRaises(ZeroDivisionError): |
|---|
| 37 | n/a | self.__import__('pkg.module') |
|---|
| 38 | n/a | self.assertNotIn('pkg', sys.modules) |
|---|
| 39 | n/a | self.assertIn('pkg.module', sys.modules) |
|---|
| 40 | n/a | |
|---|
| 41 | n/a | def test_raising_parent_after_relative_importing_child(self): |
|---|
| 42 | n/a | def __init__(): |
|---|
| 43 | n/a | from . import module |
|---|
| 44 | n/a | 1/0 |
|---|
| 45 | n/a | mock = util.mock_spec('pkg.__init__', 'pkg.module', |
|---|
| 46 | n/a | module_code={'pkg': __init__}) |
|---|
| 47 | n/a | with mock: |
|---|
| 48 | n/a | with util.import_state(meta_path=[mock]): |
|---|
| 49 | n/a | with self.assertRaises((ZeroDivisionError, ImportError)): |
|---|
| 50 | n/a | # This raises ImportError on the "from . import module" |
|---|
| 51 | n/a | # line, not sure why. |
|---|
| 52 | n/a | self.__import__('pkg') |
|---|
| 53 | n/a | self.assertNotIn('pkg', sys.modules) |
|---|
| 54 | n/a | with self.assertRaises((ZeroDivisionError, ImportError)): |
|---|
| 55 | n/a | self.__import__('pkg.module') |
|---|
| 56 | n/a | self.assertNotIn('pkg', sys.modules) |
|---|
| 57 | n/a | # XXX False |
|---|
| 58 | n/a | #self.assertIn('pkg.module', sys.modules) |
|---|
| 59 | n/a | |
|---|
| 60 | n/a | def test_raising_parent_after_double_relative_importing_child(self): |
|---|
| 61 | n/a | def __init__(): |
|---|
| 62 | n/a | from ..subpkg import module |
|---|
| 63 | n/a | 1/0 |
|---|
| 64 | n/a | mock = util.mock_spec('pkg.__init__', 'pkg.subpkg.__init__', |
|---|
| 65 | n/a | 'pkg.subpkg.module', |
|---|
| 66 | n/a | module_code={'pkg.subpkg': __init__}) |
|---|
| 67 | n/a | with mock: |
|---|
| 68 | n/a | with util.import_state(meta_path=[mock]): |
|---|
| 69 | n/a | with self.assertRaises((ZeroDivisionError, ImportError)): |
|---|
| 70 | n/a | # This raises ImportError on the "from ..subpkg import module" |
|---|
| 71 | n/a | # line, not sure why. |
|---|
| 72 | n/a | self.__import__('pkg.subpkg') |
|---|
| 73 | n/a | self.assertNotIn('pkg.subpkg', sys.modules) |
|---|
| 74 | n/a | with self.assertRaises((ZeroDivisionError, ImportError)): |
|---|
| 75 | n/a | self.__import__('pkg.subpkg.module') |
|---|
| 76 | n/a | self.assertNotIn('pkg.subpkg', sys.modules) |
|---|
| 77 | n/a | # XXX False |
|---|
| 78 | n/a | #self.assertIn('pkg.subpkg.module', sys.modules) |
|---|
| 79 | n/a | |
|---|
| 80 | n/a | def test_module_not_package(self): |
|---|
| 81 | n/a | # Try to import a submodule from a non-package should raise ImportError. |
|---|
| 82 | n/a | assert not hasattr(sys, '__path__') |
|---|
| 83 | n/a | with self.assertRaises(ImportError) as cm: |
|---|
| 84 | n/a | self.__import__('sys.no_submodules_here') |
|---|
| 85 | n/a | self.assertEqual(cm.exception.name, 'sys.no_submodules_here') |
|---|
| 86 | n/a | |
|---|
| 87 | n/a | def test_module_not_package_but_side_effects(self): |
|---|
| 88 | n/a | # If a module injects something into sys.modules as a side-effect, then |
|---|
| 89 | n/a | # pick up on that fact. |
|---|
| 90 | n/a | name = 'mod' |
|---|
| 91 | n/a | subname = name + '.b' |
|---|
| 92 | n/a | def module_injection(): |
|---|
| 93 | n/a | sys.modules[subname] = 'total bunk' |
|---|
| 94 | n/a | mock_spec = util.mock_spec('mod', |
|---|
| 95 | n/a | module_code={'mod': module_injection}) |
|---|
| 96 | n/a | with mock_spec as mock: |
|---|
| 97 | n/a | with util.import_state(meta_path=[mock]): |
|---|
| 98 | n/a | try: |
|---|
| 99 | n/a | submodule = self.__import__(subname) |
|---|
| 100 | n/a | finally: |
|---|
| 101 | n/a | support.unload(subname) |
|---|
| 102 | n/a | |
|---|
| 103 | n/a | |
|---|
| 104 | n/a | (Frozen_ParentTests, |
|---|
| 105 | n/a | Source_ParentTests |
|---|
| 106 | n/a | ) = util.test_both(ParentModuleTests, __import__=util.__import__) |
|---|
| 107 | n/a | |
|---|
| 108 | n/a | |
|---|
| 109 | n/a | if __name__ == '__main__': |
|---|
| 110 | n/a | unittest.main() |
|---|
