try pytest-xvfb instead of xvfb-run

Author: minrk

.github/workflows/ci.yml

@@ -53,11 +53,6 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: setup xvfb
-        if: ${{ startsWith(matrix.os, 'ubuntu') }}
-        run: |
-          echo "PRE_TEST=xvfb-run --auto-servernum" >> "$GITHUB_ENV"
-
       - name: set qt env
         run: |
           echo "QT=${{ matrix.qt }}" >> $GITHUB_ENV
@@ -72,19 +67,19 @@ jobs:
         timeout-minutes: 15
         if: ${{ !startsWith( matrix.python-version, 'pypy' ) && !startsWith(matrix.os, 'windows') }}
         run: |
-          ${PRE_TEST-} hatch run cov:test --cov-fail-under 50
+          hatch run cov:test --cov-fail-under 50
 
       - name: Run the tests on pypy
         timeout-minutes: 15
         if: ${{ startsWith( matrix.python-version, 'pypy' ) }}
         run: |
-          ${PRE_TEST-} hatch run test:nowarn --ignore=tests/test_debugger.py
+          hatch run test:nowarn --ignore=tests/test_debugger.py
 
       - name: Run the tests on Windows
         timeout-minutes: 15
         if: ${{ !startsWith( matrix.python-version, 'pypy' ) && startsWith(matrix.os, 'windows') }}
         run: |
-          ${PRE_TEST-} hatch run cov:nowarn
+          hatch run cov:nowarn
 
       - name: Check Launcher
         run: |

pyproject.toml

@@ -57,6 +57,7 @@ docs = [
 test = [
     "pytest>=7.0,<9",
     "pytest-cov",
+    'pytest-xvfb; platform_system == "Linux"',
     "flaky",
     "ipyparallel",
     "pre-commit",