Add CI caching and parallel test execution support (#186)

* Initial plan

* Add performance optimizations to project configuration

- Add pip dependency caching in GitHub Actions workflow
- Enable pytest strict mode and configure cache directory
- Add pytest-xdist for parallel test execution
- Update test requirements with pytest-xdist

Co-authored-by: JaclynCodes <218383634+JaclynCodes@users.noreply.github.com>

* Remove duplicate pytest options from workflow

Move all pytest options to pytest.ini to avoid duplication and ensure consistency

Co-authored-by: JaclynCodes <218383634+JaclynCodes@users.noreply.github.com>

* Remove --cache-clear flag to improve test performance

Allow pytest to utilize its cache for better performance instead of clearing it on every run

Co-authored-by: JaclynCodes <218383634+JaclynCodes@users.noreply.github.com>

* Add documentation for pytest strict mode flags

Add comments explaining the purpose of --strict-markers and --strict-config flags

Co-authored-by: JaclynCodes <218383634+JaclynCodes@users.noreply.github.com>

* Add markers section to pytest.ini for strict mode

Add workflow, integration, and unit markers to satisfy --strict-markers requirement

Co-authored-by: JaclynCodes <218383634+JaclynCodes@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: JaclynCodes <218383634+JaclynCodes@users.noreply.github.com>

Author: Copilot

.github/workflows/blank.yml

@@ -31,6 +31,10 @@ jobs:
         uses: actions/setup-python@v6
         with:
           python-version: '3.12'
+          cache: 'pip'
+          cache-dependency-path: |
+            requirements.txt
+            tests/requirements.txt
 
       # Install dependencies
       - name: Install dependencies
@@ -50,7 +54,7 @@ jobs:
       # Run tests with pytest
       - name: Run tests with pytest
         run: |
-          python -m pytest tests/ -v --tb=short
+          python -m pytest tests/
 
       # Runs a single command using the runners shell
       - name: Run a one-line script

pytest.ini

@@ -3,4 +3,12 @@ testpaths = tests
 python_files = test_*.py
 python_classes = Test*
 python_functions = test_*
-addopts = -v --tb=short
+# strict-markers: Ensures all markers are registered in pytest config
+# strict-config: Raises errors on unknown config options
+# These flags help catch configuration issues early
+addopts = -v --tb=short --strict-markers --strict-config
+cache_dir = .pytest_cache
+markers =
+    workflows: marks tests as workflow tests
+    integration: marks tests as integration tests
+    unit: marks tests as unit tests

setup.py

@@ -53,6 +53,7 @@
         "dev": [
             "pytest>=7.0.0",
             "pytest-cov>=3.0.0",
+            "pytest-xdist>=3.0.0",  # Parallel test execution
             "PyYAML>=5.1",
         ],
     },

tests/requirements.txt

@@ -1,6 +1,7 @@
 # Test dependencies for Symphonic-Joules
 pytest>=7.0.0
 pytest-cov>=3.0.0
+pytest-xdist>=3.0.0  # Parallel test execution for faster CI builds
 PyYAML>=5.1
 
 # Dependencies needed for testing audio and energy modules