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emit_tap_output_v() includes some fprintf() calls for some output related to the TAP protocol, that may clobber errno and break %m. This commit makes the logging of pg_regress smarter by saving errno before restoring it in vfprintf() where the input strings are used, removing the need for strerror(). All logs are switched to %m rather than strerror(), shaving some code. This was not a problem until now as pg_regress.c did not use %m, but the change is simple enough that we have no reason to not support this placeholder, and that will avoid future mistakes if new logs that include %m are added. Author: Dagfinn Ilmari Mannsåker Reviewed-by: Peter Eisentraunt, Michael Paquier Discussion: https://postgr.es/m/87sf13jhuw.fsf@wibble.ilmari.org
PostgreSQL tests ================ This directory contains a variety of test infrastructure as well as some of the tests in PostgreSQL. Not all tests are here -- in particular, there are more in individual contrib/ modules and in src/bin. Not all these tests get run by "make check". Check src/test/Makefile to see which tests get run automatically. authentication/ Tests for authentication (but see also below) examples/ Demonstration programs for libpq that double as regression tests via "make check" isolation/ Tests for concurrent behavior at the SQL level kerberos/ Tests for Kerberos/GSSAPI authentication and encryption ldap/ Tests for LDAP-based authentication locale/ Sanity checks for locale data, encodings, etc mb/ Tests for multibyte encoding (UTF-8) support modules/ Extensions used only or mainly for test purposes, generally not suitable for installing in production databases perl/ Infrastructure for Perl-based TAP tests recovery/ Test suite for recovery and replication regress/ PostgreSQL's main regression test suite, pg_regress ssl/ Tests to exercise and verify SSL certificate handling subscription/ Tests for logical replication