Move CWSchemaTC to RQLExpressionTC The test actually doesn't require a cubicweb schema, except for testing EmailAdress which is out of scope of the test (testing RQLExpression.transform_has_permission()). Just move the test in existing RQLExpressionTC inheriting from TestCase and rename the tests to be more explicit.

cubicweb source: source-is-missing cubicweb/web/data/jquery.flot.js line length is * characters (>512)