Use pytest to run the test suite

[Peque]

While creating the test for #235, I missed a couple of things about pytest:

• I had to add extra indentation (tests needed to be inside a class, so extra "boilerplate")
• Output of the test suite was not very pretty

But specially, I had to write:

self.assertAlmostEqual(rotated[0], normal[0])
self.assertAlmostEqual(rotated[1], normal[1])
self.assertAlmostEqual(rotated[2], normal[2])

Instead of (from pytest import approx):

assert rotated == approx(normal)

The latter is definitely shorter, clearer and more Pythonic. 😊

Also, I think nowadays pytest is the de facto tool. Or that is my impression.

Hope you like the shift.

[jmwright]

@Peque Thanks for the contributions. The CI systems are complaining about pytest not being installed. I think you'll need to add a pip install line to appveyor.yml and .travis.yml to get those checks to pass.

[Peque]

@jmwright You are right! I assumed both Travis and AppVeyor would create the Conda environments with the environment.yaml file.

I will fix that. 👍

[Peque]

Had a quick look to try to use conda env create -f environment.yaml in both Travis and AppVeyor but:

• It seems you cannot conda env create -f environment python=other_version (Conda ignores the python=other_version part)
• Did not find an easy way to edit the config file with AppVeyor (with Travis it is easy, using sed to replace the Python version before creating the virtual environment)

[codecov]

Codecov Report

Merging #236 into master will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #236      +/-   ##
==========================================
- Coverage   94.86%   94.84%   -0.02%     
==========================================
  Files          19       18       -1     
  Lines        4189     4173      -16     
==========================================
- Hits         3974     3958      -16     
  Misses        215      215

Impacted Files	Coverage Δ
tests/test_selectors.py	100% <ø> (ø)
tests/test_jupyter.py	100% <ø> (ø)
tests/test_importers.py	93.75% <ø> (ø)
tests/test_cadquery.py	98.97% <ø> (ø)
tests/test_exporters.py	100% <ø> (ø)
tests/test_workplanes.py	100% <ø> (ø)
tests/test_cad_objects.py	99.33% <ø> (ø)
tests/test_cqgi.py	100% <ø> (ø)

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[Peque]

@jmwright Passing now.

Isn't the output prettier this way? 😍 [before vs. after]

[adam-urbanczyk]

Thanks for the contribution @Peque . Py-test is definitely nicer. Are there any actions required regarding appveyor? BTW there are ways to do sed-like stuff with PowerShell or CMake.

[Peque]

@adam-urbanczyk What do you mean by "any actions required regarding appveyor"? I already updated the configuration file (and pipelines are passing).

Yeah, I guessed there would be ways, but I was not willing to spend time on that. 😇

I created this issue, which I think would be the most convenient way to do it: conda/conda#9506

[jmwright]

@Peque Looks much nicer, thanks. That will be a nice quality of life improvement for all CadQuery contributors.

@adam-urbanczyk I'm all for merging when you're ready.

[adam-urbanczyk]

@Peque ok, clear. I just wasn't sure if you were done with it. Thanks for the contribution!