Merged revisions 78966,78970,79018,79026-79027,79055,79156,79159,79163-79164,79173,79176,79194,79208,79212 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r78966 | florent.xicluna | 2010-03-14 10:20:59 -0500 (Sun, 14 Mar 2010) | 2 lines

  Do not hardcode Expat version.  It's possible to build Python with --with-system-expat option.
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  r78970 | benjamin.peterson | 2010-03-14 21:58:24 -0500 (Sun, 14 Mar 2010) | 1 line

  this little exception dance is pointless
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  r79018 | collin.winter | 2010-03-16 22:04:01 -0500 (Tue, 16 Mar 2010) | 1 line

  Delete unused import.
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  r79026 | vinay.sajip | 2010-03-17 10:05:57 -0500 (Wed, 17 Mar 2010) | 1 line

  Issue #8162: logging: Clarified docstring and documentation for disable function.
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  r79027 | collin.winter | 2010-03-17 12:36:16 -0500 (Wed, 17 Mar 2010) | 1 line

  Avoid hardcoding refcounts in tests.
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  r79055 | benjamin.peterson | 2010-03-18 16:30:48 -0500 (Thu, 18 Mar 2010) | 1 line

  remove installation of deleted test/output dir
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  r79156 | florent.xicluna | 2010-03-20 17:21:02 -0500 (Sat, 20 Mar 2010) | 2 lines

  Cleanup test_struct using check_warnings.
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  r79159 | florent.xicluna | 2010-03-20 17:26:42 -0500 (Sat, 20 Mar 2010) | 2 lines

  Cleanup test_tarfile, and use check_warnings.
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  r79163 | michael.foord | 2010-03-20 19:53:39 -0500 (Sat, 20 Mar 2010) | 1 line

  A faulty load_tests in a test module no longer halts test discovery. A placeholder test, that reports the failure, is created instead.
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  r79164 | michael.foord | 2010-03-20 19:55:58 -0500 (Sat, 20 Mar 2010) | 1 line

  Change order of arguments in a unittest function.
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  r79173 | georg.brandl | 2010-03-21 04:09:38 -0500 (Sun, 21 Mar 2010) | 1 line

  Document that GzipFile supports iteration.
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  r79176 | georg.brandl | 2010-03-21 04:17:41 -0500 (Sun, 21 Mar 2010) | 1 line

  Introduce copy by slicing, used in later chapters.
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  r79194 | florent.xicluna | 2010-03-21 06:58:11 -0500 (Sun, 21 Mar 2010) | 2 lines

  Use assertRaises and add a specific warning filter.
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  r79208 | andrew.kuchling | 2010-03-21 13:47:12 -0500 (Sun, 21 Mar 2010) | 1 line

  Add items
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  r79212 | georg.brandl | 2010-03-21 14:01:38 -0500 (Sun, 21 Mar 2010) | 1 line

  Fix plural.
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diff --git a/Lib/unittest/loader.py b/Lib/unittest/loader.py
index bfee3dc..4e9e152 100644
--- a/Lib/unittest/loader.py
+++ b/Lib/unittest/loader.py
@@ -23,12 +23,18 @@
         # Python 2.3 compatibility
         # format_exc returns two frames of discover.py as well
         message += '\n%s' % traceback.format_exc()
+    return _make_failed_test('ModuleImportFailure', name, ImportError(message),
+                             suiteClass)
 
-    def testImportFailure(self):
-        raise ImportError(message)
-    attrs = {name: testImportFailure}
-    ModuleImportFailure = type('ModuleImportFailure', (case.TestCase,), attrs)
-    return suiteClass((ModuleImportFailure(name),))
+def _make_failed_load_tests(name, exception, suiteClass):
+    return _make_failed_test('LoadTestsFailure', name, exception, suiteClass)
+
+def _make_failed_test(classname, methodname, exception, suiteClass):
+    def testFailure(self):
+        raise exception
+    attrs = {methodname: testFailure}
+    TestClass = type(classname, (case.TestCase,), attrs)
+    return suiteClass((TestClass(methodname),))
 
 
 class TestLoader(object):
@@ -63,7 +69,11 @@
         load_tests = getattr(module, 'load_tests', None)
         tests = self.suiteClass(tests)
         if use_load_tests and load_tests is not None:
-            return load_tests(self, tests, None)
+            try:
+                return load_tests(self, tests, None)
+            except Exception as e:
+                return _make_failed_load_tests(module.__name__, e,
+                                               self.suiteClass)
         return tests
 
     def loadTestsFromName(self, name, module=None):
@@ -234,7 +244,11 @@
                     for test in self._find_tests(full_path, pattern):
                         yield test
                 else:
-                    yield load_tests(self, tests, pattern)
+                    try:
+                        yield load_tests(self, tests, pattern)
+                    except Exception as e:
+                        yield _make_failed_load_tests(package.__name__, e,
+                                                      self.suiteClass)
 
 defaultTestLoader = TestLoader()