Clean up CI & add backend unit tests

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          uv sync --dev
+          uv sync --extra dev
 
       - name: Check code formatting with black
         run: |
@@ -67,12 +67,12 @@ jobs:
 
       - name: Install dependencies
         run: |
-          uv sync --dev
+          uv sync --extra dev
 
       - name: Run tests with pytest
         run: |
           if [ -d "tests" ] && [ "$(ls -A tests 2>/dev/null)" ]; then
-            uv run pytest tests/ -v
+            uv run pytest tests/ -v --cov=github_pm --cov-report=term
           else
             echo "No tests directory or tests found, skipping pytest"
           fi

backend/pyproject.toml

@@ -45,8 +45,11 @@ github_pm = "github_pm.cli:main"
 dev = [
     "black>=24.4.2",
     "flake8>=7.3.0",
+    "httpx>=0.27.0",
     "isort>=6.0.1",
     "pytest>=8.0.0",
+    "pytest-asyncio>=0.23.0",
+    "pytest-cov>=5.0.0",
     "tox>=4.23.2",
 ]
 
@@ -62,7 +65,7 @@ order_by_type = false
 
 [tool.tox]
 requires = ["tox>=4.23.2"]
-env_list = ["format", "isort", "lint"]
+env_list = ["format", "isort", "lint", "test", "coverage"]
 
 [tool.tox.env.format]
 description = "check code format"
@@ -81,3 +84,53 @@ description = "check code"
 skip_install = true
 deps = ["flake8"]
 commands = [["flake8", { replace = "posargs", default = ["src", "tests"], extend = true}]]
+
+[tool.tox.env.test]
+description = "run tests"
+deps = ["pytest>=8.0.0", "pytest-asyncio>=0.23.0", "httpx>=0.27.0"]
+commands = [["pytest", { replace = "posargs", default = ["tests"], extend = true}]]
+
+[tool.tox.env.coverage]
+description = "run tests with coverage"
+deps = ["pytest>=8.0.0", "pytest-asyncio>=0.23.0", "pytest-cov>=5.0.0", "httpx>=0.27.0"]
+commands = [
+    ["pytest", "--cov=github_pm", "--cov-report=term-missing", "--cov-report=html", { replace = "posargs", default = ["tests"], extend = true}],
+]
+
+[tool.pytest.ini_options]
+asyncio_mode = "auto"
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+python_classes = ["Test*"]
+python_functions = ["test_*"]
+
+[tool.coverage.run]
+source = ["src"]
+omit = [
+    "*/tests/*",
+    "*/test_*.py",
+    "*/__pycache__/*",
+    "*/__init__.py",
+]
+
+[tool.coverage.report]
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "raise AssertionError",
+    "raise NotImplementedError",
+    "if __name__ == .__main__.:",
+    "if TYPE_CHECKING:",
+    "@abstractmethod",
+    "@abstractproperty",
+    "if False:",
+    "if 0:",
+    "class .*\\bProtocol\\):",
+    "@(abc\\.)?abstractmethod",
+]
+show_missing = true
+precision = 2
+skip_covered = false
+
+[tool.coverage.html]
+directory = "htmlcov"

backend/tests/conftest.py

@@ -0,0 +1,13 @@
+"""Pytest configuration and fixtures.
+
+ai-generated: Cursor
+"""
+
+from pathlib import Path
+import sys
+
+# Add src directory to Python path for imports
+backend_dir = Path(__file__).parent.parent
+src_dir = backend_dir / "src"
+if str(src_dir) not in sys.path:
+    sys.path.insert(0, str(src_dir))