tests.yml

name: tests

on:
  push:
  pull_request:

jobs:
  pytest:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5

      - name: Install uv
        uses: astral-sh/setup-uv@v7

      # PsychoPy is deliberately NOT installed: it's a heavy GUI/audio dep whose
      # transitive build (ffpyplayer → SDL headers) is fragile on headless CI.
      # The medoc + ramp/hold modules the tests exercise are import-clean without
      # it, so the suite imports and runs with just pydantic + psyexp-core. We put
      # `src` on PYTHONPATH rather than resolving the project's full dependency
      # graph (which would drag in PsychoPy and the unavailable psychtoolbox arm64
      # wheel).
      #
      # psyexp-core is installed --no-deps for the same reason: the light modules
      # the tests pull in are import-clean without PsychoPy, so --no-deps avoids
      # dragging the GUI stack back in. Its pinned version is read from uv.lock via
      # `uv export` rather than hardcoded here — the lockfile stays the single
      # source of truth.
      - name: Create venv and install minimal test deps
        run: |
          uv venv
          uv pip install pytest pydantic
          uv export --frozen --no-hashes --no-emit-project | grep '^psyexp-core==' > psyexp-core-req.txt
          uv pip install --no-deps -r psyexp-core-req.txt

      # tests/test_ramp_hold_recorder.py is excluded: it imports the setup wizard,
      # which pulls in psyexp_core.screen and thus PsychoPy at module import time.
      # That dep is deliberately absent here (see above), so this module can't be
      # collected headless. Every other test runs without a display.
      - name: Run tests
        env:
          PYTHONPATH: src
        run: .venv/bin/python -m pytest -v --ignore=tests/test_ramp_hold_recorder.py