coverallsapp / coverage-reporter / 17813769888

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Fix: handle empty/zero-line classes in Cobertura parser + add regression tests (#177)

This fixes the overflow reported by customer large Cobertura XML uploads, adds safety tests, and makes the dev environment reproducible.

- Fixed Cobertura parser crash ("Arithmetic overflow") when a file had no <line> entries or only line="0" entries (e.g. kvstore/__init__.py).
- Added two tiny fixtures (cobertura-empty-lines.xml, cobertura-zero-only.xml) and new specs to prevent regressions.
- Updated developer setup:
  • Added .venv/ workflow for Python deps (coverage.py + pytest).
  • Pinned Python version in .python-version (3.12.7).
  • Updated README with clear local dev/test instructions.
  • Added Makefile `test` target integration so `make test` runs with venv.

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