[jira] [Created] (DISPATCH-2063) In system_test.Logger, a __str__ must be a function, not a string @property

["Jiri Daněk (Jira)" <ji...@apache.org>]

Jiri Daněk created DISPATCH-2063:
------------------------------------

             Summary: In system_test.Logger, a __str__ must be a function, not a string @property
                 Key: DISPATCH-2063
                 URL: https://issues.apache.org/jira/browse/DISPATCH-2063
             Project: Qpid Dispatch
          Issue Type: Test
          Components: Tests
    Affects Versions: 1.15.0
            Reporter: Jiri Daněk
            Assignee: Jiri Daněk


{code}
    def dump(self):
        print(self)
        sys.stdout.flush()

    @property
    def __str__(self):
        lines = [self.title]
        for ts, msg in self.logs:
            lines.append("%s %s" % (ts, msg))
        res = str('\n'.join(lines))
        return res
{code}

When dump() runs, Python's print() looks for a __str__ attribute on the argument, it finds it and tries to call it (as a function). But here it is a string, so this all fails with

{noformat}
71: ======================================================================
71: ERROR: test_01_concurrent_requests (system_tests_http1_adaptor.Http1AdaptorEdge2EdgeTest)
71: Test multiple concurrent clients sending streaming messages
71: ----------------------------------------------------------------------
71: Traceback (most recent call last):
71:   File "/home/jdanek/repos/qpid/qpid-dispatch/tests/http1_tests.py", line 485, in test_01_concurrent_requests
71:     client.dump_log()
71:   File "/home/jdanek/repos/qpid/qpid-dispatch/tests/http1_tests.py", line 207, in dump_log
71:     self._logger.dump()
71:   File "/home/jdanek/repos/qpid/qpid-dispatch/tests/system_test.py", line 1424, in dump
71:     print(self)
71: TypeError: 'str' object is not callable
{noformat}



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