You must set the following environment variables to run the tests:

# DSN; For example: mysql:dbname=test;host=localhost;port=3306
PDO_MYSQL_TEST_DSN

# Database host
PDO_MYSQL_TEST_HOST

# Database (schema) name
PDO_MYSQL_TEST_DB

# Database server socket
PDO_MYSQL_TEST_SOCKET

# Storage engine to use
PDO_MYSQL_TEST_ENGINE

# Database user
PDO_MYSQL_TEST_USER

# Database user password
PDO_MYSQL_TEST_PASS

# Database charset
PDO_MYSQL_TEST_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.

The MySQL user used to run the tests must have full permissions on the test database, plus the following additional permissions:

• SUPER: Required to create functions if binary logging is enabled
• SELECT permissions on performance_schema.session_connect_attrs