Greg Ward ac14957fbb Always detect when a connection is closed behind psycopg2's back. ... There's a race condition that only seems to happen over Unix-domain sockets. Sometimes, the closed socket is reported by the kernel to libpq like this (captured with strace): sendto(3, "Q\0\0\0\34select pg_backend_pid()\0", 29, MSG_NOSIGNAL, NULL, 0) = 29 recvfrom(3, "E\0\0\0mSFATAL\0C57P01\0Mterminating "..., 16384, 0, NULL, NULL) = 110 recvfrom(3, 0x12d0330, 16384, 0, 0, 0) = -1 ECONNRESET (Connection reset by peer) That is, psycopg2/libpq sees no error when sending the first query after the connection is closed, but gets an error reading the result. In that case, everything worked fine. But sometimes, the error manifests like this: sendto(3, "Q\0\0\0\34select pg_backend_pid()\0", 29, MSG_NOSIGNAL, NULL, 0) = -1 EPIPE (Broken pipe) recvfrom(3, "E\0\0\0mSFATAL\0C57P01\0Mterminating "..., 16384, 0, NULL, NULL) = 110 recvfrom(3, "", 16274, 0, NULL, NULL) = 0 recvfrom(3, "", 16274, 0, NULL, NULL) = 0 i.e. libpq received an error when sending the query. This manifests as a slightly different exception from a slightly different place. More importantly, in this case connection.closed is left at 0 rather than being set to 2, and that is the bug I'm fixing here. Note that we see almost identical behaviour for sync and async connections, and the fixes are the same. So I added extremely similar test cases. Finally, there is still a bug here: for async connections, we sometimes raise DatabaseError (incorrect) and sometimes raise OperationalError (correct). Will fix that next.		2016-06-28 17:46:21 -04:00
..
__init__.py	Fixed race condition on import in errorcodes.lookup	2015-12-16 12:00:52 +00:00
dbapi20_tpc.py	hook up two phase commit tests.	2010-11-05 09:34:47 +00:00
dbapi20.py	Fix several typos	2015-05-03 10:00:11 +01:00
test_async.py	Added select.select timeout on AsyncTests.wait	2014-05-19 12:15:52 +01:00
test_bug_gc.py	Testing boilerplate unified in a single base class	2013-04-07 00:23:30 +01:00
test_bugX000.py	All unit test modules have a test_ prefix	2011-10-19 02:20:43 +01:00
test_cancel.py	Testing boilerplate unified in a single base class	2013-04-07 00:23:30 +01:00
test_connection.py	Report NotSupportedError for PGRES_COPY_BOTH and PGRES_SINGLE_TUPLE	2015-09-30 12:24:47 +01:00
test_copy.py	Propagate read error messages in COPY FROM	2015-02-08 01:42:21 +00:00
test_cursor.py	Always detect when a connection is closed behind psycopg2's back.	2016-06-28 17:46:21 -04:00
test_dates.py	More tests tweaks	2015-02-08 12:51:36 +00:00
test_errcodes.py	Fixed race condition on import in errorcodes.lookup	2015-12-16 12:00:52 +00:00
test_extras_dictcursor.py	Testing boilerplate unified in a single base class	2013-04-07 00:23:30 +01:00
test_green.py	Testing boilerplate unified in a single base class	2013-04-07 00:23:30 +01:00
test_lobject.py	Accept overflow errors testing for LO64 funcs	2015-02-08 02:04:41 +00:00
test_module.py	Added test to verify _psycopg can be imported	2014-08-28 02:17:49 +01:00
test_notify.py	Testing external script independent from psycopg implementation	2013-04-19 23:01:28 +01:00
test_psycopg2_dbapi20.py	Pulled down changes from dvarrazzo branch on gh	2011-02-10 15:59:31 -07:00
test_quote.py	Testing boilerplate unified in a single base class	2013-04-07 00:23:30 +01:00
test_transaction.py	Testing boilerplate unified in a single base class	2013-04-07 00:23:30 +01:00
test_types_basic.py	Skip null array test on Postgres versions not supporting it	2015-06-14 19:04:04 +01:00
test_types_extras.py	Clear adapters in test to maintain reference count	2014-08-28 02:17:54 +01:00
test_with.py	More tests tweaks	2015-02-08 12:51:36 +00:00
testconfig.py	Report NotSupportedError for PGRES_COPY_BOTH and PGRES_SINGLE_TUPLE	2015-09-30 12:24:47 +01:00
testutils.py	Report NotSupportedError for PGRES_COPY_BOTH and PGRES_SINGLE_TUPLE	2015-09-30 12:24:47 +01:00