fix(ci): prune duplicated tests/checks (#333)

* prune duplicated tests
* testing-guardian

.github/workflows/ci-testing.yml

@@ -13,14 +13,13 @@ defaults:
     shell: bash
 
 jobs:
-  pytest:
+  pytester:
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-13, windows-latest]
-        python-version: [3.9]
-        requires: ["oldest", "latest"]
+        os: ["ubuntu-latest", "macos-13", "windows-latest"]
+        python-version: ["3.9"]
 
     # Timeout: https://stackoverflow.com/a/59076067/4521646
     timeout-minutes: 35
@@ -34,20 +33,6 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      # Github Actions: Run step on specific OS: https://stackoverflow.com/a/57948488/4521646
-      #- name: Setup macOS
-      #  if: runner.os == 'macOS'
-      #  run: |
-      #    brew install libomp  # https://github.com/pytorch/pytorch/issues/20030
-
-      - name: Set min. dependencies
-        if: matrix.requires == 'oldest'
-        run: |
-          for fpath in ('requirements.txt', 'requirements/test.txt'):
-              req = open(fpath).read().replace('>=', '==')
-              open(fpath, 'w').write(req)
-        shell: python
-
       - name: Display dependencies
         run: |
           cat requirements.txt
@@ -64,18 +49,10 @@ jobs:
           key: ${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.requires }}-pip-${{ hashFiles('requirements.txt') }}
           restore-keys: ${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.requires }}-pip-
 
-      - name: Install package & dependencies on Ubuntu
-        if: matrix.os == 'ubuntu-latest'
-        run: |
-          pip --version
-          pip install -e '.[extras]' -r requirements/test.txt -U -q --find-links $TORCH_URL
-          pip list
-
       - name: Install package & dependencies
-        if: matrix.os != 'ubuntu-latest'
         run: |
           pip --version
-          pip install -e . -r requirements/test.txt -U -q --find-links $TORCH_URL
+          pip install -e ".[extras]" -r requirements/test.txt -U -q --find-links $TORCH_URL
           pip list
 
       - name: Tests
@@ -96,3 +73,17 @@ jobs:
           env_vars: OS,PYTHON
           name: codecov-umbrella
           fail_ci_if_error: false
+
+  testing-guardian:
+    runs-on: ubuntu-latest
+    needs: pytester
+    if: always()
+    steps:
+      - run: echo "${{ needs.pytester.result }}"
+      - name: failing...
+        if: needs.pytester.result == 'failure'
+        run: exit 1
+      - name: cancelled or skipped...
+        if: contains(fromJSON('["cancelled", "skipped"]'), needs.pytester.result)
+        timeout-minutes: 1
+        run: sleep 90