Type safety rewrite with e2e tests

.github/workflows/ci.yml

@@ -0,0 +1,35 @@
+name: ci
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Run tests
+        run: python -m unittest cmus_status_scrobbler.py tests.py test_cmus_status_scrobbler.py
+  typecheck:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install typecheck dependencies
+        run: python -m pip install -r requirements-dev.txt
+      - name: Run typecheck
+        run: make typecheck PYTHON=python

Makefile

@@ -0,0 +1,22 @@
+PYTHON ?= ./venv/bin/python
+VENV ?= ./venv
+VENV_PYTHON := $(VENV)/bin/python
+FILES := cmus_status_scrobbler.py tests.py test_cmus_status_scrobbler.py
+
+.PHONY: test typecheck format check venv
+
+test:
+	$(PYTHON) -m unittest $(FILES)
+
+typecheck:
+	$(PYTHON) -m mypy --strict --check-untyped-defs $(FILES)
+	$(PYTHON) -m pyright $(FILES)
+
+format:
+	$(PYTHON) -m yapf -i $(FILES)
+
+check: typecheck test
+
+venv:
+	python3 -m venv $(VENV)
+	$(VENV_PYTHON) -m pip install -r requirements-dev.txt

README.md

@@ -1,8 +1,8 @@
 # cmus-status-scrobbler
 
-![tests passing status](https://github.com/vjeranc/cmus-status-scrobbler/actions/workflows/run-tests.yml/badge.svg?branch=main)
+![tests passing status](https://github.com/vjeranc/cmus-status-scrobbler/actions/workflows/ci.yml/badge.svg?branch=main)
 
-Works with [cmus](https://cmus.github.io/). Requires Python 3 and has no
+Works with [cmus](https://cmus.github.io/). Requires Python 3.9+ and has no
 additional dependencies.
 
 **Features:**