CM_Tools_Generator_CliTest::testCreateView fails randomly

```
1) CM_Tools_Generator_CliTest::testCreateView
CM_Exception_Invalid: Detected parent className `CM_Class_Abstract` is not a subclass of `CM_View_Abstract`.
/home/travis/build/cargomedia/CM/library/CM/Tools/Generator/Cli.php:57
/home/travis/build/cargomedia/CM/tests/library/CM/Tools/Generator/CliTest.php:107
```
Never reproduced locally.

To be investigated.