FYI... We don't have a place to document that yet, but 3.1 requires a special URL parameter to run unit tests on MySQL: enerateSimpleParameterMetadata=true. E.g.:
mysql.cayenne.adapter = org.apache.cayenne.dba.mysql.MySQLAdapter mysql.jdbc.username = bla mysql.jdbc.password = bla mysql.jdbc.url = jdbc:mysql://localhost/cayenne?generateSimpleParameterMetadata=true mysql.jdbc.driver = com.mysql.jdbc.Driver Andrus
