From 81e69c43c913f9024dd9144eee725855da43b105 Mon Sep 17 00:00:00 2001
From: Martin Thoma <info@martin-thoma.de>
Date: Sat, 16 Apr 2022 23:39:52 +0200
Subject: [PATCH 1/2] TST: Run with -OO Flags

---
 .github/workflows/github-ci.yaml | 7 ++++++-
 .gitignore                       | 1 +
 PyPDF2/pdf.py                    | 6 ++++--
 Tests/test_workflows.py          | 3 ++-
 4 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/github-ci.yaml b/.github/workflows/github-ci.yaml
index 19ca30144..5d9ff7705 100644
--- a/.github/workflows/github-ci.yaml
+++ b/.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", "3.7.4", "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 != '3.7.4'
+    - name: Test with pytest
+      run: |
+        python -OO -m coverage run --parallel-mode -m pytest Tests -vv
+      if: matrix.python-version == '3.7.4'
     - name: Upload coverage data
       uses: actions/upload-artifact@v3
       with:
diff --git a/.gitignore b/.gitignore
index 4a9c9ab80..e11314331 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@ build
 .idea/*
 *.egg-info/
 dist/*
+__pycache__/
 
 #
 .mutmut-cache
diff --git a/PyPDF2/pdf.py b/PyPDF2/pdf.py
index 29bedc28d..81da4a644 100644
--- a/PyPDF2/pdf.py
+++ b/PyPDF2/pdf.py
@@ -2261,7 +2261,8 @@ 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
 
@@ -2272,7 +2273,8 @@ 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
 
diff --git a/Tests/test_workflows.py b/Tests/test_workflows.py
index 300430657..eb313fa8c 100644
--- a/Tests/test_workflows.py
+++ b/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"

From cc9b8146462dc1e22660f2edfccc62c4dbf19c70 Mon Sep 17 00:00:00 2001
From: Martin Thoma <info@martin-thoma.de>
Date: Sat, 16 Apr 2022 23:41:48 +0200
Subject: [PATCH 2/2] Fix

---
 .github/workflows/github-ci.yaml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/github-ci.yaml b/.github/workflows/github-ci.yaml
index 5d9ff7705..6fe34071a 100644
--- a/.github/workflows/github-ci.yaml
+++ b/.github/workflows/github-ci.yaml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["2.7", "3.6", "3.7", "3.7.4", "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
@@ -45,11 +45,11 @@ jobs:
     - name: Test with pytest
       run: |
         python -m coverage run --parallel-mode -m pytest Tests -vv
-      if: matrix.python-version != '3.7.4'
+      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 == '3.7.4'
+      if: matrix.python-version == '3.10.1'
     - name: Upload coverage data
       uses: actions/upload-artifact@v3
       with: