Use an environment file definition for each binding for testing

.github/workflows/linux-tests.yml

@@ -42,7 +42,7 @@ jobs:
            channel-priority: strict
       - name: Install dependencies
         shell: bash -l {0}
-        run: conda env update --file requirements/environment_tests.yml
+        run: conda env update --file requirements/environment_tests_${{ matrix.QT_BINDING }}.yml
       - name: Install Package
         shell: bash -l {0}
         run: pip install -e .

.github/workflows/macos-tests.yml

@@ -37,7 +37,7 @@ jobs:
            channel-priority: strict
       - name: Install package dependencies
         shell: bash -l {0}
-        run: conda env update --file requirements/environment_tests.yml
+        run: conda env update --file requirements/environment_tests_${{ matrix.QT_BINDING }}.yml
       - name: Install Package
         shell: bash -l {0}
         run: pip install -e .

.github/workflows/windows-tests.yml

@@ -37,7 +37,7 @@ jobs:
            channel-priority: strict
       - name: Install package dependencies
         shell: bash -l {0}
-        run: conda env update --file requirements/environment_tests.yml
+        run: conda env update --file requirements/environment_tests_${{ matrix.QT_BINDING }}.yml
       - name: Install Package
         shell: bash -l {0}
         run: pip install -e .

requirements/environment_tests.yml → requirements/environment_tests_pyqt5.yml

@@ -2,8 +2,7 @@ channels:
   - conda-forge
 dependencies:
 - codecov
-- pyqt
-- pyside2>=5.12
+- pyqt>=5.15
 - pytest
 - pytest-cov
 - pytest-qt

requirements/environment_tests_pyside2.yml

@@ -0,0 +1,9 @@
+channels:
+  - conda-forge
+dependencies:
+- codecov
+- pyside2>=5.15
+- pytest
+- pytest-cov
+- pytest-qt
+- qtpy