gamma-ci-integration skill

---
name: gamma-ci-integration
description: |
  Configure Gamma CI/CD integration with GitHub Actions and testing.
  Use when setting up automated testing, configuring CI pipelines,
  or integrating Gamma tests into your build process.
  Trigger with phrases like "gamma CI", "gamma GitHub Actions",
  "gamma automated tests", "CI gamma", "gamma pipeline".
allowed-tools: Read, Write, Edit, Bash(gh:*)
version: 1.0.0
license: MIT
author: Jeremy Longshore <[email protected]>
---

# Gamma CI Integration

## Overview
Set up continuous integration for Gamma-powered applications with automated testing and deployment.

## Prerequisites
- GitHub repository with Actions enabled
- Gamma test API key
- npm/pnpm project configured

## Instructions

### Step 1: Create GitHub Actions Workflow
```yaml
# .github/workflows/gamma-ci.yml
name: Gamma CI

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main]

env:
  GAMMA_API_KEY: ${{ secrets.GAMMA_API_KEY }}

jobs:
  test:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Run unit tests
        run: npm test

      - name: Run Gamma integration tests
        run: npm run test:gamma
        env:
          GAMMA_MOCK: ${{ github.event_name == 'pull_request' }}

      - name: Upload coverage
        uses: codecov/codecov-action@v4
        with:
          files: ./coverage/lcov.info
```

### Step 2: Create Test Scripts
```json
// package.json
{
  "scripts": {
    "test": "vitest run",
    "test:gamma": "vitest run --config vitest.gamma.config.ts",
    "test:gamma:live": "GAMMA_MOCK=false vitest run --config vitest.gamma.config.ts"
  }
}
```

### Step 3: Gamma Test Configuration
```typescript
// vitest.gamma.config.ts
import { defineConfig } from 'vitest/config';

export default defineConfig({
  test: {
    include: ['tests/gamma/**/*.test.ts'],
    testTimeout: 60000, // Gamma API can be slow
    hookTimeout: 30000,
    setupFiles: ['./tests/gamma/setup.ts'],
  },
});
```

### Step 4: Test Setup with Mocking
```typescript
// tests/gamma/setup.ts
import { beforeAll, afterAll } from 'vitest';
import { GammaClient } from '@gamma/sdk';

const useMock = process.env.GAMMA_MOCK === 'true';

export let gamma: GammaClient;

beforeAll(() => {
  if (useMock) {
    gamma = createMockGammaClient();
  } else {
    gamma = new GammaClient({
      apiKey: process.env.GAMMA_API_KEY,
    });
  }
});

function createMockGammaClient() {
  return {
    presentations: {
      create: vi.fn().mockResolvedValue({
        id: 'mock-id',
        url: 'https://gamma.app/mock/test',
        title: 'Mock Presentation',
      }),
      list: vi.fn().mockResolvedValue([]),
      get: vi.fn().mockResolvedValue({ id: 'mock-id' }),
    },
    ping: vi.fn().mockResolvedValue({ ok: true }),
  } as unknown as GammaClient;
}
```

### Step 5: Integration Test Example
```typescript
// tests/gamma/presentation.test.ts
import { describe, it, expect } from 'vitest';
import { gamma } from './setup';

describe('Gamma Presentations', () => {
  it('should create a presentation', async () => {
    const result = await gamma.presentations.create({
      title: 'CI Test Presentation',
      prompt: 'Test slide for CI',
      slideCount: 1,
    });

    expect(result.id).toBeDefined();
    expect(result.url).toContain('gamma.app');
  });

  it('should list presentations', async () => {
    const presentations = await gamma.presentations.list({ limit: 5 });

    expect(Array.isArray(presentations)).toBe(true);
  });
});
```

### Step 6: Add Secrets to GitHub
```bash
# Using GitHub CLI
gh secret set GAMMA_API_KEY --body "your-test-api-key"

# Verify secrets
gh secret list
```

## Output
- Automated test pipeline running on push/PR
- Mock mode for PR checks (no API calls)
- Live integration tests on main branch
- Coverage reports uploaded

## Error Handling
| Error | Cause | Solution |
|-------|-------|----------|
| Secret not found | Missing GitHub secret | Add GAMMA_API_KEY secret |
| Test timeout | Slow API response | Increase testTimeout |
| Mock mismatch | Mock out of sync | Update mock responses |
| Rate limit in CI | Too many test runs | Use mock mode for PRs |

## Resources
- [GitHub Actions Documentation](https://docs.github.com/en/actions)
- [Vitest Documentation](https://vitest.dev/)
- [Gamma Testing Guide](https://gamma.app/docs/testing)

## Next Steps
Proceed to `gamma-deploy-integration` for deployment workflows.