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Diffstat (limited to 'extras/tests/test_extras.py')
| -rw-r--r-- | extras/tests/test_extras.py | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/extras/tests/test_extras.py b/extras/tests/test_extras.py index be1ed1c..d048bda 100644 --- a/extras/tests/test_extras.py +++ b/extras/tests/test_extras.py @@ -1,5 +1,8 @@ # Copyright (c) 2010-2012 extras developers. See LICENSE for details. +import sys +import types + from testtools import TestCase from testtools.matchers import ( Equals, @@ -125,6 +128,22 @@ class TestTryImport(TestCase): # the error callback is not called on success. check_error_callback(self, try_import, 'os.path', 0, True) + def test_handle_partly_imported_name(self): + # try_import('thing.other') when thing.other is mid-import + # used to fail because thing.other is not assigned until thing.other + # finishes its import - but thing.other is accessible via sys.modules. + outer = types.ModuleType("extras.outer") + inner = types.ModuleType("extras.outer.inner") + inner.attribute = object() + self.addCleanup(sys.modules.pop, "extras.outer", None) + self.addCleanup(sys.modules.pop, "extras.outer.inner", None) + sys.modules["extras.outer"] = outer + sys.modules["extras.outer.inner"] = inner + result = try_import("extras.outer.inner.attribute") + self.expectThat(result, Is(inner.attribute)) + result = try_import("extras.outer.inner") + self.expectThat(result, Is(inner)) + class TestTryImports(TestCase): |