Those unit tests that are registered in `Init.py` will always run,
while those that are registerd in `InitGui.py` will only run
when the graphical interface is available.
This allows us to more clearly distinguish functions that
should be able to run always, from those that may run only
when the interfce is available.
This solves a small bug in the radial dimension
unit test introduced in 81c2896928, where a circle shape
is used before it is recomputed.
```
drafttests/test_creation.DraftCreation.test_dimension_radial
```
Previously the `makeAngularDimension` function produced
error messages in the report view due to internal rounding
of `App::PropertyAngles`.
This was fixed in `Base::Quantity`, which now supports
Python's `__round__` function.
The test script can be run by the program's executable
or run as a macro.
```
freecad draft_test_objects.py
```
It can also be used as a Python module within the program
to create a test file on demand.
```
import drafttests.draft_test_objects as dt
dt.create_test_file()
```
The produced test file will be added in a different commit
once this commit is merged.
The idea is to have a test file created by a certain
stable version of the master branch. Then as the code
continues to change and grow, this file can be opened
with future versions of the program to test for compatibility
and regressions.
