Add tests

Author: jeremyfowers

.github/workflows/test_lemonade_client.yml

@@ -0,0 +1,87 @@
+name: Run LemonadeClient Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Linux with source installation
+          - os: ubuntu-latest
+            install-type: 'source'
+            test-name: 'Linux Source'
+          
+          # Windows with source installation
+          - os: windows-latest
+            install-type: 'source'
+            test-name: 'Windows Source'
+          
+          # Windows with PyInstaller build
+          - os: windows-latest
+            install-type: 'pyinstaller'
+            test-name: 'Windows PyInstaller'
+
+    name: ${{ matrix.test-name }}
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
+
+    - name: Install base dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install httpx
+
+    - name: Install source dependencies (Linux/Windows Source)
+      if: matrix.install-type == 'source'
+      run: |
+        pip install -e .
+
+    - name: Cache Python dependencies (PyInstaller)
+      if: matrix.install-type == 'pyinstaller' && runner.os == 'Windows'
+      uses: actions/cache@v3
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('setup.py') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
+    - name: Install PyInstaller dependencies (Windows PyInstaller)
+      if: matrix.install-type == 'pyinstaller' && runner.os == 'Windows'
+      run: |
+        python -m pip install -e .
+        python -m pip install pyinstaller
+
+    - name: Build PyInstaller executable (Windows PyInstaller)
+      if: matrix.install-type == 'pyinstaller' && runner.os == 'Windows'
+      run: |
+        python -m PyInstaller lemonade_arcade.spec
+      continue-on-error: true  # PyInstaller build might fail but we still want to test the source
+
+    - name: Verify PyInstaller build (Windows PyInstaller)
+      if: matrix.install-type == 'pyinstaller' && runner.os == 'Windows'
+      run: |
+        if (-not (Test-Path "dist\LemonadeArcade.exe")) {
+          Write-Warning "PyInstaller executable not found, but continuing with tests"
+        } else {
+          $exe = Get-Item "dist\LemonadeArcade.exe"
+          Write-Host "✓ PyInstaller build successful: $($exe.Name) ($([math]::Round($exe.Length / 1MB, 2)) MB)"
+        }
+      shell: pwsh
+      continue-on-error: true
+
+    - name: Run unit tests
+      run: |
+        python test/lemonade_client_unit.py