Follow up on bd67479316
This test file is not respecting Odoo module dependencies.
If the module is not defined, calling `[Symbol.for("default")]` will crash.
Old require system didn't have this syntax, the similar guard was done just
before using the class.
closes odoo/odoo#69845
Signed-off-by: Xavier Dollé (xdo) <xdo@odoo.com>