These tests are obviously meant to test successful and failing uri:
DSNs, but did not pass proper file:// URIs, so actually ended up
testing for invalid data source URIs twice. We fix this, and adjust
the expectations accordingly.
We also unfork the -win32 variant, since both test cases are almost
identical, and the expected error message may be either one.
Use less aggressive conversion to exceptions, in particular
do not convert warnings that happen during check_liveness. If the
server has gone away this will just reconnect and we still end up
with a valid connection, so it shouldn't throw.
Also drop some unnecessary checks for malloc returning NULL.
pecl#12794, pecl#12401
# Running the tests:
# (Note: Doesn't work currnetly on HEAD, see:
# http://news.php.net/php.qa/64378)
#
# PDO_MYSQL_TEST_DSN - DSN
# For example: mysql:dbname=test;host=localhost;port=3306
#
# PDO_MYSQL_TEST_HOST - database host
# PDO_MYSQL_TEST_DB - database (schema) name
# PDO_MYSQL_TEST_SOCKET - database server socket
# PDO_MYSQL_TEST_ENGINE - storage engine to use
# PDO_MYSQL_TEST_USER - database user
# PDO_MYSQL_TEST_PASS - database user password
# PDO_MYSQL_TEST_CHARSET - database charset
#
# NOTE: if any of PDO_MYSQL_TEST_[HOST|DB|SOCKET|ENGINE|CHARSET] is
# part of PDO_MYSQL_TEST_DSN, the values must match. That is, for example,
# for PDO_MYSQL_TEST_DSN = mysql:dbname=test you MUST set PDO_MYSQL_TEST_DB=test.
