vrde 4c177a9946 Replace == with is for some tests
Replace all occurrences of:
 - `== True` with `is True`
 - `== False` with `is False`
 - `== None` with `is None`
2016-02-18 11:42:34 +01:00
..
2016-02-18 11:42:34 +01:00
2016-02-18 11:42:34 +01:00
2016-02-10 19:55:33 +01:00