# Feature #58: Playwright Test Helpers & Fixtures - Implementation Summary

## Status: ✅ COMPLETE

All requirements from feature #58 have been successfully implemented.

## Created Files

### 1. `tests/e2e/helpers/fixtures.ts` (377 lines)

**Main implementation file with all required functionality:**

- ✅ **E2E User Type Definitions**
  - `E2EUserType` type with all user types (landlord, tenant, admin, etc.)
  - `E2E_USER_IDS` constant matching services/e2eFixtures.ts
  - `BASE_TIME` constant for deterministic time (2024-01-15T12:00:00.000Z)

- ✅ **useE2EUser() function**
  - Sets `x-e2e-user` header for authenticated requests
  - Injects encryption bypass flag in localStorage
  - Adds route handler to inject headers in all browser requests

- ✅ **applyDeterministicPage() function**
  - Stubs `Date.now()` to return BASE_TIME
  - Stubs `new Date()` to use deterministic time
  - Stubs `Math.random()` for consistent sequences
  - Disables CSS animations and transitions
  - Sets timezone to UTC

- ✅ **Test Data Generators**
  - `generateTestProperty()` - creates unique test properties
  - `generateTestLease()` - creates unique test leases
  - `generateTestMessage()` - creates unique test messages
  - `generateTestMaintenanceRequest()` - creates unique test maintenance
    requests
  - All generators accept optional overrides for customization

- ✅ **Helper Functions for Common Assertions**
  - `expectSuccess()` - expects successful API response
  - `expectStatus()` - expects specific HTTP status
  - `expectVisible()` - expects element to be visible
  - `expectText()` - expects element to contain text
  - `expectNoConsoleErrors()` - expects no console errors
  - `waitForPageLoad()` - waits for page to fully load
  - `takeScreenshot()` - captures screenshots with automatic naming

- ✅ **Additional Utilities**
  - `e2eHeaders()` - creates headers object for API requests
  - `ROUTES` constant with common route paths
  - Extended Playwright test with custom fixtures

### 2. `tests/helpers/test-utils.ts` (Compatibility Layer)

**Provides backward compatibility for existing tests:**

- Re-exports all fixtures from `tests/e2e/helpers/fixtures.ts`
- Exports `test` and `expect` from Playwright
- Allows existing tests to import from `../../helpers/test-utils.ts`

### 3. `tests/e2e/example.test.ts` (139 lines)

**Demonstrates proper usage of all helpers:**

- Basic UI tests with E2E user context
- API tests with E2E headers
- Test data generator usage
- Onboarding flow testing
- Data isolation testing between users
- Deterministic behavior verification

### 4. `tests/e2e/sanity.test.ts` (106 lines)

**Verifies all helper functions work correctly:**

- Tests all E2E user IDs
- Tests header generation
- Tests all data generators (uniqueness and overrides)
- Tests ROUTES constant
- API integration tests with real endpoints

### 5. `tests/e2e/README.md` (319 lines)

**Comprehensive documentation:**

- Overview of E2E infrastructure
- Available E2E users table with descriptions
- Test data available for each user type
- How-to guide for writing tests
- Helper function reference
- Routes reference
- Best practices
- Troubleshooting guide

## Verification

### TypeScript Type Checking

All files pass `deno check` without errors:

- ✅ `tests/e2e/helpers/fixtures.ts`
- ✅ `tests/helpers/test-utils.ts`
- ✅ `tests/e2e/example.test.ts`
- ✅ `tests/e2e/sanity.test.ts`

### Integration with Existing Code

- ✅ Integrates with `services/e2eFixtures.ts` (uses same user IDs)
- ✅ Integrates with `services/stateMiddleware.ts` (uses `x-e2e-user` header)
- ✅ Backward compatible with existing tests via `tests/helpers/test-utils.ts`

## Feature Requirements Checklist

From feature #58 description:

1. ✅ Create `tests/e2e/helpers/fixtures.ts` with E2E user type definitions and
   helper functions
2. ✅ Implement `useE2EUser()` fixture to set x-e2e-user header for
   authenticated requests
3. ✅ Implement `applyDeterministicPage()` to mock time and ensure consistent
   test runs
4. ✅ Create test data generators for properties, leases, and messages
5. ✅ Add helper functions for common assertions (expectSuccess, expectError,
   etc.)

**All requirements met! ✅**

## Usage Example

```typescript
import { expect, test } from "@playwright/test";
import {
  applyDeterministicPage,
  e2eHeaders,
  generateTestProperty,
  ROUTES,
  useE2EUser,
} from "../helpers/fixtures.ts";

test("landlord can create property", async ({ page, request }) => {
  await applyDeterministicPage(page);
  await useE2EUser(page, "landlord");

  // Navigate to properties page
  await page.goto(ROUTES.landlordProperties);

  // Or test via API
  const newProperty = generateTestProperty({ title: "Test Property" });
  const response = await request.post("/api/create/property", {
    headers: e2eHeaders("landlord"),
    data: newProperty,
  });

  expect(response.ok()).toBeTruthy();
});
```

## Next Steps

This infrastructure is now ready for use by other E2E tests. Existing tests can
be updated to use these helpers for more reliable and maintainable test code.