Added pylint test

Author: asenyaev

.github/workflows/build_wheels_macos.yml

@@ -171,6 +171,11 @@ jobs:
         cd ${{ github.workspace }}/opencv
         python modules/python/test/test.py -v --repo .
 
+    - name: Pylint test
+      run: |
+        python -m pip install pylint
+        python -m pylint ${{ github.workspace }}/tests/pylint.py --extension-pkg-whitelist=cv2 --disable=missing-docstring
+
   test_release_opencv_python:
     if: github.event_name == 'release' && github.event.release.prerelease
     needs: [build, test]

.github/workflows/build_wheels_macos_m1.yml

@@ -106,6 +106,11 @@ jobs:
         cd ${{ github.workspace }}/opencv
         arch -arm64 python${{ matrix.python-version }} modules/python/test/test.py -v --repo .
 
+    - name: Pylint test
+      run: |
+        arch -arm64 python${{ matrix.python-version }} -m pip install pylint
+        arch -arm64 python${{ matrix.python-version }} -m pylint ${{ github.workspace }}/tests/pylint.py --extension-pkg-whitelist=cv2 --disable=missing-docstring
+
   test_release_opencv_python:
     if: github.event_name == 'release' && github.event.release.prerelease
     needs: [build, test]

.github/workflows/build_wheels_windows.yml

@@ -130,6 +130,12 @@ jobs:
         python modules\python\test\test.py -v --repo .
       shell: cmd
 
+    - name: Pylint test
+      run: |
+        python -m pip install pylint
+        python -m pylint ${{ github.workspace }}\tests\pylint.py --extension-pkg-whitelist=cv2 --disable=missing-docstring
+      shell: cmd
+
   test_release_opencv_python:
     if: github.event_name == 'release' && github.event.release.prerelease
     needs: [build-windows-x86_64, test]

tests/pylint.py

@@ -0,0 +1,3 @@
+from cv2 import getStructuringElement, MORPH_ELLIPSE
+
+a = getStructuringElement(MORPH_ELLIPSE, (3, 3))

travis_config.sh

@@ -141,37 +141,36 @@ function run_tests {
 
     PYTHON=python$PYTHON_VERSION
 
-    if [ -n "$IS_OSX" ]; then
-      echo "Running for OS X"
-
-      cd ../tests
-      $PYTHON get_build_info.py
-
-      cd ../opencv/
-      export OPENCV_TEST_DATA_PATH=../opencv_extra/testdata
-    else
-      echo "Running for linux"
-
-      if [ $PYTHON == "python3.6" ]; then
-        $PYTHON -m pip install -U numpy==1.19.4
-      fi
-      cd /io/tests
-      $PYTHON get_build_info.py
+    echo "Running for linux"
 
-      cd /io/opencv
-      export OPENCV_TEST_DATA_PATH=/io/opencv_extra/testdata
+    if [ $PYTHON == "python3.6" ]; then
+      $PYTHON -m pip install -U numpy==1.19.4
     fi
+    cd /io/tests
+    $PYTHON get_build_info.py
+
+    cd /io/opencv
+    export OPENCV_TEST_DATA_PATH=/io/opencv_extra/testdata
 
     test_wheels
+    pylint_test
 }
 
 function test_wheels {
 
-    echo "Starting tests..."
+    echo "Starting OpenCV tests..."
 
     #Test package
     $PYTHON modules/python/test/test.py -v --repo .
 }
 
+function pylint_test {
+
+    echo "Starting Pylint tests..."
+
+    $PYTHON -m pip install pylint
+    $PYTHON -m pylint /io/tests/pylint.py --extension-pkg-whitelist=cv2 --disable=missing-docstring
+}
+
 export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
 set -x