test(cli): add vitest infrastructure and tests for auth functionality

[romitg2]

Summary

• Set up vitest testing infrastructure for the @calcom/cli package
• Added comprehensive unit tests for authentication and configuration functionality
• Added CI integration to run tests on every PR/push

Changes

Test Infrastructure

• Added vitest as dev dependency
• Created test setup file (src/__tests__/setup.ts) with automatic mock resets
• Created test helpers:
  • mockFs.ts - File system mocking utilities
  • mockProcess.ts - process.exit and console mocking
  • fixtures.ts - Test data (configs, tokens, error bodies)

Test Coverage

config.test.ts (21 tests)

Function	Test Case
readConfig	Returns empty object when file doesn't exist
readConfig	Parses valid JSON config
readConfig	Returns empty object on JSON parse error
readConfig	Returns empty object when file read throws
writeConfig	Writes config with mode 0o600
writeConfig	Creates config directory if missing
getApiUrl	Returns env var CAL_API_URL first
getApiUrl	Falls back to config.apiUrl
getApiUrl	Returns default https://api.cal.com
getAppUrl	Returns env var CAL_APP_URL first
getAppUrl	Falls back to config.appUrl
getAppUrl	Returns default https://app.cal.com
getAuthToken	Returns CAL_API_KEY from env
getAuthToken	Returns OAuth token when valid
getAuthToken	Auto-refreshes expired OAuth token
getAuthToken	Falls back to apiKey when no OAuth
getAuthToken	Exits with error when no auth configured
getAuthToken	Exits with error when token refresh fails
getAuthToken	Refreshes token within 60-second buffer before expiry
getAuthToken	Persists new tokens to config after refresh
getAuthToken	Treats invalid expiry date as expired and refreshes

errors.test.ts (16 tests)

Function	Test Case
handleSdkError	Handles Error with JSON body containing validation errors
handleSdkError	Handles Error with JSON body containing nested validation errors
handleSdkError	Handles Error with JSON body containing simple message
handleSdkError	Handles Error with JSON body containing string error
handleSdkError	Handles SDK error object with body property
handleSdkError	Handles SDK error object with status but no body
handleSdkError	Handles plain Error with non-JSON message
handleSdkError	Handles plain object error with error.message
handleSdkError	Handles plain object error with error.details.message
handleSdkError	Handles plain object error with top-level message
handleSdkError	Handles string error
handleSdkError	Handles null/undefined by converting to string
withErrorHandling	Returns result on success
withErrorHandling	Returns complex objects on success
withErrorHandling	Calls exit(1) on error
withErrorHandling	Handles SDK errors in wrapped function

auth.test.ts (6 tests)

Function	Test Case
ApiKeyAuth.login	Saves provided API key
ApiKeyAuth.login	Clears existing OAuth config
ApiKeyAuth.login	Sets custom apiUrl
OAuthAuth.refreshToken	Throws when no OAuth config exists
OAuthAuth.refreshToken	Refreshes token and saves new credentials
OAuthAuth.refreshToken	Throws when token exchange fails

CI Integration

• Added CLI - Unit Tests job to .github/workflows/ci.yml
• Added root-level test script to package.json

Test plan

• Run bun run test locally - all 43 tests pass
• CI runs test job successfully on PR

🤖 Generated with Claude Code

[cubic-dev-ai]

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