Add timeout option back to ini and remove command line option

.travis.yml

@@ -144,7 +144,7 @@ script:
 
     # Run unit tests
     - start_test "unit tests";
-      PYTHONPATH=. pytest --cov pyqtgraph -sv -o faulthandler_timeout=15;
+      PYTHONPATH=. pytest --cov pyqtgraph -sv;
       check_output "unit tests";
     - echo "test script finished. Current directory:"
     - pwd

CONTRIBUTING.md

@@ -47,6 +47,10 @@ Please use the following guidelines when preparing changes:
 * pytest-xdist
 * Optional: pytest-xvfb
 
+If you have pytest < 5, you may also want to install the pytest-faulthandler
+plugin to output extra debugging information in case of test failures. This
+isn't necessary with pytest 5+ as the plugin was merged into core pytest.
+
 ### Tox
 
 As PyQtGraph supports a wide array of Qt-bindings, and python versions, we make use of `tox` to test against most of the configurations in our test matrix.  As some of the qt-bindings are only installable via `conda`, `conda` needs to be in your `PATH`, and we utilize the `tox-conda` plugin.

azure-test-template.yml

@@ -174,8 +174,7 @@ jobs:
       # echo "https://dev.azure.com/pyqtgraph/pyqtgraph/_apis/build/builds/$(Build.BuildId)/artifacts?artifactName=Screenshots&api-version=5.0"
       pytest . -sv \
         --junitxml=junit/test-results.xml \
-        -n 1 --cov pyqtgraph --cov-report=xml --cov-report=html \
+        -n 1 --cov pyqtgraph --cov-report=xml --cov-report=html
-        -o faulthandler_timeout=15
     displayName: 'Unit tests' 
     env:
       AZURE: 1

pytest.ini

@@ -4,6 +4,7 @@ xvfb_height = 1080
 # use this due to some issues with ndarray reshape errors on CI systems
 xvfb_colordepth = 24
 xvfb_args=-ac +extension GLX +render
+faulthandler_timeout = 15
 
 filterwarnings =
     # comfortable skipping these warnings runtime warnings