Use Chrome webdriver for tests

.github/workflows/main.yml

@@ -20,6 +20,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - uses: browser-actions/setup-chrome@latest
+      with:
+        chrome-version: 95.0.4638.17.0
     - uses: conda-incubator/setup-miniconda@v2
       with:
         auto-update-conda: true

environment.devenv.yml

@@ -9,7 +9,7 @@ includes:
 environment:
   # Tip: Use `--driver <driver_name>` to change driver for a single run
   {% if TEST_QMXGRAPH %}
-  PYTEST_ADDOPTS: --driver Firefox
+  PYTEST_ADDOPTS: --driver Chrome
   {% endif %}
 
 dependencies:
@@ -18,8 +18,7 @@ dependencies:
   {% if TEST_QMXGRAPH %}
   - cherrypy
   - hypothesis =3.11
-  - firefox
-  - geckodriver
+  - python-chromedriver-binary =95.0.4638.17.0
   - pytest-mock
   - pytest-qt
   - pytest-rerunfailures

tests/conftest.py

@@ -4,6 +4,9 @@
 
 
 def pytest_configure(config):
+    # Adds chromedriver binary to path.
+    import chromedriver_binary  # noqa
+
     # During warm up, clean up the temporary files/objects used by ports
     # fixture from previous runs. Note these files are shared among ALL slaves
     # of pytest so they can't reliably be removed by a fixture.
@@ -16,9 +19,9 @@ def pytest_configure(config):
 
 # Fixtures --------------------------------------------------------------------
 @pytest.fixture
-def firefox_options(firefox_options):
-    firefox_options.headless = True
-    return firefox_options
+def chrome_options(chrome_options):
+    chrome_options.headless = True
+    return chrome_options
 
 
 @pytest.fixture(autouse=True)