Add comprehensive test suite and GitHub Actions CI workflow

- 102 unit tests covering all public methods in VUUtil, VUAdminUtil,
  VUDial, and VUAdmin using pytest and the responses library for HTTP
  mocking (no hardware or live server required)
- Tests cover happy paths, correct endpoint/param construction, HTTP
  error propagation, URL encoding, and boundary values (RGB 0/255,
  value zero, missing files, etc.)
- GitHub Actions workflow runs the full suite across Python 3.11,
  3.12, and 3.13 on every push and pull request to main
- pyproject.toml updated with [dev] optional dependencies (pytest,
  responses, pytest-cov) and pytest/coverage configuration

https://claude.ai/code/session_01H9Y23xpAt1rCjBCXLUdujo

Author: claude

.github/workflows/ci.yml

@@ -0,0 +1,43 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+      - "claude/**"
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    name: Test (Python ${{ matrix.python-version }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.11", "3.12", "3.13"]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e ".[dev]"
+
+      - name: Run tests
+        run: |
+          pytest tests/ -v --cov=vudials_client --cov-report=term-missing --cov-report=xml
+
+      - name: Upload coverage report
+        uses: actions/upload-artifact@v4
+        if: matrix.python-version == '3.12'
+        with:
+          name: coverage-report
+          path: coverage.xml

pyproject.toml

@@ -21,6 +21,23 @@ classifiers = [
 license = "MIT"
 license-files = ["LICEN[CS]E*"]
 
+[project.optional-dependencies]
+dev = [
+    "pytest>=8.0",
+    "responses>=0.25",
+    "pytest-cov>=5.0",
+]
+
 [project.urls]
 Homepage = "https://github.com/erinlkolp/vu1-dial-python-module"
 Issues = "https://github.com/erinlkolp/vu1-dial-python-module/issues"
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+
+[tool.coverage.run]
+source = ["src/vudials_client"]
+omit = ["tests/*"]
+
+[tool.coverage.report]
+show_missing = true

tests/__init__.py

@@ -0,0 +1,12 @@
+import pytest
+from vudials_client.vudialsclient import VUDial, VUAdmin
+
+
+@pytest.fixture
+def vudial():
+    return VUDial("localhost", 5340, "test-api-key")
+
+
+@pytest.fixture
+def vuadmin():
+    return VUAdmin("localhost", 5340, "test-admin-key")