TST: Run with -OO Flags

.github/workflows/github-ci.yaml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["2.7", "3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["2.7", "3.6", "3.7", "3.10.1", "3.8", "3.9", "3.10"]
 
     steps:
     - name: Checkout Code
@@ -45,6 +45,11 @@ jobs:
     - name: Test with pytest
       run: |
         python -m coverage run --parallel-mode -m pytest Tests -vv
+      if: matrix.python-version != '3.10.1'
+    - name: Test with pytest
+      run: |
+        python -OO -m coverage run --parallel-mode -m pytest Tests -vv
+      if: matrix.python-version == '3.10.1'
     - name: Upload coverage data
       uses: actions/upload-artifact@v3
       with:

.gitignore

@@ -6,6 +6,7 @@ build
 .idea/*
 *.egg-info/
 dist/*
+__pycache__/
 
 #
 .mutmut-cache

PyPDF2/pdf.py

@@ -2287,7 +2287,8 @@ def rotateClockwise(self, angle):
         :param int angle: Angle to rotate the page.  Must be an increment
             of 90 deg.
         """
-        assert angle % 90 == 0
+        if angle % 90 != 0:
+            raise ValueError("Rotation angle must be a multiple of 90")
         self._rotate(angle)
         return self
 
@@ -2298,7 +2299,8 @@ def rotateCounterClockwise(self, angle):
         :param int angle: Angle to rotate the page.  Must be an increment
             of 90 deg.
         """
-        assert angle % 90 == 0
+        if angle % 90 != 0:
+            raise ValueError("Rotation angle must be a multiple of 90")
         self._rotate(-angle)
         return self
 

Tests/test_workflows.py

@@ -96,5 +96,6 @@ def test_rotate_45():
     with open(os.path.join(RESOURCE_ROOT, "crazyones.pdf"), "rb") as inputfile:
         reader = PdfFileReader(inputfile)
         page = reader.getPage(0)
-        with pytest.raises(AssertionError):
+        with pytest.raises(ValueError) as exc:
             page.rotateCounterClockwise(45)
+        assert exc.value.args[0] == "Rotation angle must be a multiple of 90"