diff options
Diffstat (limited to 'Lib/test/test_traceback.py')
| -rw-r--r-- | Lib/test/test_traceback.py | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/Lib/test/test_traceback.py b/Lib/test/test_traceback.py index 24753a8..66a12bf 100644 --- a/Lib/test/test_traceback.py +++ b/Lib/test/test_traceback.py @@ -150,11 +150,17 @@ class SyntaxTracebackCases(unittest.TestCase): class TracebackFormatTests(unittest.TestCase): - def test_traceback_format(self): + def some_exception(self): + raise KeyError('blah') + + def check_traceback_format(self, cleanup_func=None): try: - raise KeyError('blah') + self.some_exception() except KeyError: type_, value, tb = sys.exc_info() + if cleanup_func is not None: + # Clear the inner frames, not this one + cleanup_func(tb.tb_next) traceback_fmt = 'Traceback (most recent call last):\n' + \ ''.join(traceback.format_tb(tb)) file_ = StringIO() @@ -183,12 +189,22 @@ class TracebackFormatTests(unittest.TestCase): # Make sure that the traceback is properly indented. tb_lines = python_fmt.splitlines() - self.assertEqual(len(tb_lines), 3) - banner, location, source_line = tb_lines + self.assertEqual(len(tb_lines), 5) + banner = tb_lines[0] + location, source_line = tb_lines[-2:] self.assertTrue(banner.startswith('Traceback')) self.assertTrue(location.startswith(' File')) self.assertTrue(source_line.startswith(' raise')) + def test_traceback_format(self): + self.check_traceback_format() + + def test_traceback_format_with_cleared_frames(self): + # Check that traceback formatting also works with a clear()ed frame + def cleanup_tb(tb): + tb.tb_frame.clear() + self.check_traceback_format(cleanup_tb) + def test_stack_format(self): # Verify _stack functions. Note we have to use _getframe(1) to # compare them without this frame appearing in the output |