From: Brett Cannon <brett@python.org>
Date: Thu, 13 Jun 2013 03:38:50 +0000 (-0400)
Subject: Issue #15767: Add an explicit test for raising ModuleNotFoundError
X-Git-Tag: v3.4.0a1~518
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e5b25df16d10f6e3fb5010c29bfcc155f8b09bef;p=python

Issue #15767: Add an explicit test for raising ModuleNotFoundError
when None in sys.modules.
---

diff --git a/Lib/test/test_importlib/import_/test_api.py b/Lib/test/test_importlib/import_/test_api.py
index 6aca6dcf7d..4b7baadab6 100644
--- a/Lib/test/test_importlib/import_/test_api.py
+++ b/Lib/test/test_importlib/import_/test_api.py
@@ -26,6 +26,13 @@ class APITest(unittest.TestCase):
         with self.assertRaises(ModuleNotFoundError):
             util.import_('some module that does not exist')
 
+    def test_raises_ModuleNotFoundError_for_None(self):
+        # None in sys.modules should raise ModuleNotFoundError.
+        with importlib_test_util.uncache('not_here'):
+            sys.modules['not_here'] = None
+            with self.assertRaises(ModuleNotFoundError):
+                util.import_('not_here')
+
     def test_name_requires_rparition(self):
         # Raise TypeError if a non-string is passed in for the module name.
         with self.assertRaises(TypeError):