remove resolution test, have display information printed during debug step

azure-test-template.yml

@@ -10,19 +10,19 @@ jobs:
     vmImage: ${{ parameters.vmImage }}
   strategy:
     matrix:
-      Python27-PyQt4:
+      Python27-PyQt4-4.8:
         python.version: '2.7'
         qt.bindings: "pyqt=4"
         install.method: "conda"
-      Python27-PySide:
+      Python27-PySide-4.8:
         python.version: '2.7'
         qt.bindings: "pyside"
         install.method: "conda"
-      Python37-PyQt-5.9:
+      Python36-PyQt-5.9:
         python.version: "3.6"
         qt.bindings: "pyqt"
         install.method: "conda"
-      Python37-PySide2-5.9:
+      Python36-PySide2-5.9:
         python.version: "3.6"
         qt.bindings: "pyside2"
         install.method: "conda"
@@ -88,7 +88,6 @@ jobs:
       then
         source activate test-environment-$(python.version)
       fi
-
       pip install setuptools wheel
       python setup.py bdist_wheel
       pip install dist/*.whl
@@ -98,11 +97,11 @@ jobs:
     inputs:
       contents: 'dist/**' 
       targetFolder: $(Build.ArtifactStagingDirectory)
-      cleanTargetFolder: true # Optional
-    displayName: "Copy Distributions To Artifacts"
+      cleanTargetFolder: true
+    displayName: "Copy Binary Wheel Distribution To Artifacts"
 
   - task: PublishBuildArtifacts@1
-    displayName: 'Publish Distributions' 
+    displayName: 'Publish Binary Wheel' 
     condition: always()
     inputs:
       pathtoPublish: $(Build.ArtifactStagingDirectory)/dist
@@ -130,10 +129,18 @@ jobs:
       pip list
       echo pyqtgraph system info
       python -c "import pyqtgraph as pg; pg.systemInfo()"
+      echo display information
+      if [ $(agent.os) == 'Linux' ]
+      then
+        export DISPLAY=:99.0
+        Xvfb :99 -screen 0 1920x1080x24 &
+        sleep 3
+      fi
+      python -m pyqtgraph.util.get_resolution
     displayName: 'Debug Info'
     continueOnError: false
 
-  - bash: | 
+  - bash: |
       if [ $(install.method) == "conda" ]
       then
         source activate test-environment-$(python.version)

pyqtgraph/tests/test_display.py

@@ -1,10 +0,0 @@
-from .. import mkQApp
-
-qApp = mkQApp()
-
-
-def test_displayResolution():
-    desktop = qApp.desktop().screenGeometry()
-    width, height = desktop.width(), desktop.height()
-    print("\n\nDisplay Resolution Logged as {}x{}\n\n".format(width, height))
-    assert height > 0 and width > 0

pyqtgraph/util/get_resolution.py

@@ -1,7 +1,15 @@
 from .. import mkQApp
 
-
-def getResolution():
+def test_screenInformation():
     qApp = mkQApp()
-    desktop = qApp.desktop().screenGeometry()
-    return (desktop.width(), desktop.height())
+    desktop = qApp.desktop()
+    resolution = desktop.screenGeometry()
+    availableResolution = desktop.availableGeometry()
+    print("Screen resolution: {}x{}".format(resolution.width(), resolution.height()))
+    print("Available geometry: {}x{}".format(availableResolution.width(), availableResolution.height()))
+    print("Number of Screens: {}".format(desktop.screenCount()))
+    return None
+
+
+if __name__ == "__main__":
+    test_screenInformation()

pytest.ini

@@ -1,11 +1,14 @@
 [pytest]
+xvfb_width = 1920
+xvfb_height = 1080
 # use this due to some issues with ndarray reshape errors on CI systems
 xvfb_colordepth = 24
 addopts = --faulthandler-timeout=15
+
 filterwarnings =
     # comfortable skipping these warnings runtime warnings
     # https://stackoverflow.com/questions/40845304/runtimewarning-numpy-dtype-size-changed-may-indicate-binary-incompatibility
     ignore:numpy.ufunc size changed, may indicate binary incompatibility.*:RuntimeWarning
     # Warnings generated from PyQt5.9
-    ignore:*U.*mode is deprecated:DeprecationWarning
-    ignore:This method will be removed in future versions.  Use 'tree.iter\(\)' or 'list\(tree.iter\(\)\)' instead.:PendingDeprecationWarning
+    ignore:This method will be removed in future versions.  Use 'tree.iter\(\)' or 'list\(tree.iter\(\)\)' instead.:PendingDeprecationWarning
+    ignore:'U' mode is deprecated\nplugin = open\(filename, 'rU'\):DeprecationWarning