[ehanrsha]

Running pytest tests/test_processing.py -v prints collected 0 items, even though the file contains 8 test methods.

Cause: the classes are named test_processing and test_qrs. pytest's default python_classes = "Test*" only collects classes whose names start with Test (unless they subclass unittest.TestCase, which these don't). So the whole file is silently skipped, both locally and in CI. That means the resampling, peak-finding, GQRS, and XQRS tests have not been running.

Fix: rename the classes to TestProcessing and TestQrs. No test logic changed.

Before:

pytest tests/test_processing.py -v
collected 0 items

After:

pytest tests/test_processing.py -v
collected 8 items
8 passed in 4.27s

Tested on Windows 11, Python 3.14.3, pytest 9.1.1.