Fix logcapture plugin to capture output from non-propagating loggers, and to not output 'no handlers could be found' message

2 files changed, 25 insertions, 0 deletions

diff --git a/nose/plugins/logcapture.py b/nose/plugins/logcapture.py
index 4c9a79f..9623ae5 100644
--- a/nose/plugins/logcapture.py
+++ b/nose/plugins/logcapture.py
@@ -194,6 +194,13 @@ class LogCapture(Plugin):
             if isinstance(handler, MyMemoryHandler):
                 root_logger.handlers.remove(handler)
         root_logger.addHandler(self.handler)
+        # Also patch any non-propagating loggers in the tree
+        for logger in logging.Logger.manager.loggerDict.values():
+            if not getattr(logger, 'propagate', True) and hasattr(logger, "addHandler"):
+                for handler in logger.handlers[:]:
+                    if isinstance(handler, MyMemoryHandler):
+                        logger.handlers.remove(handler)
+                logger.addHandler(self.handler)
         # to make sure everything gets captured
         loglevel = getattr(self, "loglevel", "NOTSET")
         root_logger.setLevel(getattr(logging, loglevel))
diff --git a/unit_tests/test_logcapture_plugin.py b/unit_tests/test_logcapture_plugin.py
index 63aa651..1f2d50f 100644
--- a/unit_tests/test_logcapture_plugin.py
+++ b/unit_tests/test_logcapture_plugin.py
@@ -255,3 +255,21 @@ class TestLogCapturePlugin(object):
             assert msg in ev
         else:
             assert msg.encode('utf-8') in ev
+
+    def test_non_propagating_loggers_handled(self):
+        c = LogCapture()
+        parser = OptionParser()
+        c.addOptions(parser, {})
+        options, args = parser.parse_args([])
+        c.configure(options, Config())
+
+        logger = logging.getLogger('foo.yes')
+        logger.propagate = False
+
+        c.start()
+        logger.debug("test message")
+        c.end()
+
+        records = c.formatLogRecords()
+        eq_(1, len(records))
+        assert records[0].startswith('foo.yes:'), records[0]