pytest-blender 0.0.3

Blender addons tester for Pytest.

pytest-blender

Pytest plugin for Blender testing. Executes your pytest testsuite with Blender in headless mode using its builtin Python interpreter.

Install

pip install pytest-blender

Documentation

Usage

Install dependencies in Blender Python interpreter

Before execute it, you need to install your testing dependencies inside the builtin Blender Python interpreter. To get the interpreter location you can use the CLI utility pytest-blender, something like:

blender_python="$(pytest-blender)"
$blender_python -m ensurepip
$blender_python -m pip install -r test-requirements.txt

You can also get the intepreter for a custom Blender installation location with --blender-executable option:

pytest-blender --blender-executable ~/blender-2.91.2-linux64/blender

Execute tests

After installing dependencies, just call pytest as usually.

pytest -svv

Blender 2.82 (sub 7)
Read prefs: ~/.config/blender/2.82/config/userpref.blend
========================= test session starts ==================================
platform linux -- Python 3.8.5, pytest-6.1.2, py-1.9.0, pluggy-0.13.1 -- /usr/bin/blender
cachedir: .pytest_cache
rootdir: /home/mondeja/files/code/pytest-blender
collected 1 item

tests/test_bpy_import.py::test_inside_blender <module 'bpy' from '/usr/share/blender/scripts/modules/bpy/__init__.py'>
PASSED
=========================== 1 passed in 0.01s ==================================

Just can specify a custom blender executable path using --blender-executable option:

pytest --blender-executable ~/blender-2.91.2-linux64/blender

Blender 2.91.2 (hash 5be9ef417703 built 2021-01-19 16:16:34)
Read prefs: ~/.config/blender/2.91/config/userpref.blend
found bundled python: ~/blender-2.91.2-linux64/2.91/python
============================ test session starts ===============================
platform linux -- Python 3.7.7, pytest-6.2.2, py-1.10.0, pluggy-0.13.1
rootdir: ~/pytest-blender
collected 1 item

tests/test_bpy_import.py .                                                [100%]

============================== 1 passed in 0.00s ===============================

Reference

Fixtures

# blender_executable ⇒ str

Returns the path of the executable that has started the current Blender session.

# blender_version ⇒ str

Returns the version of Blender running in the current session.

# blender_python_executable ⇒ str

Returns the path of the Python executable builtin in the Blender release of the currently running session.

# blender_python_version ⇒ str

Returns the version of the Python executable builtin in the Blender release of the currently running session.