Complete framework from ~90% to production-ready: missing modules, OAuth2, tests, docs

[Copilot]

The framework had several broken import paths, a stubbed NotImplementedError, no tests/ directory (despite pytest.ini pointing there), and documentation references to non-existent files.

Bug Fixes

• utils/config.py — Removed four duplicate method definitions (get_api_username, get_api_password, get_api_bearer_token, get_api_key)

Missing Implementations

• core/api/services/auth/strategies/oauth2.py — Replaced raise NotImplementedError stub in _fetch_token with a working OAuth2 client-credentials token fetch using asyncio.to_thread + stdlib urllib.request (no new dependencies):

async def _fetch_token(self) -> None:
    def _sync_fetch() -> dict:
        req = urllib.request.Request(
            self.token_url, data=encoded_data,
            headers={"Content-Type": "application/x-www-form-urlencoded"}, method="POST"
        )
        with urllib.request.urlopen(req) as resp:
            return json.loads(resp.read().decode("utf-8"))

    token_response = await asyncio.to_thread(_sync_fetch)
    self._access_token = token_response["access_token"]
    self._expires_at = time.time() + int(token_response.get("expires_in", 3600))

Missing Modules

• services/base_pages/login_page.py — Created LoginPage(BasePage) with login(username, password, url) — was imported by conftest.py but absent, breaking the entire test suite on import
• conftest.py — Added api_client fixture (BaseAPIClient via context.request), documented in the README but not implemented

Tests (tests/)

pytest.ini had testpaths = tests but the directory didn't exist. Added four example test files targeting free public APIs (no private infra required):

File	Covers
test_ui_examples.py	POM, fill_data, validation/storage/tab services, TestDataGenerator
test_api_examples.py	All HTTP verbs, every auth strategy, all validation helpers
test_database_examples.py	DatabaseClient + RedisClient — skip gracefully without infra
test_crud_example.py	Full CRUD lifecycle, hybrid UI+API pattern, data generation

Documentation (docs/)

Created three files referenced from existing READMEs but missing:

• docs/UI_TESTING.md — POM setup, all services, components, markers, complete CRUD example
• docs/API_TESTING.md — All auth strategies, HTTP methods, validation, config presets
• docs/DATABASE_TESTING.md — DatabaseClient/RedisClient API, Docker Compose, cross-layer validation examples

README

Updated the project structure tree to reflect the actual layout (core/, services/, tests/, docs/) instead of the outdated pages/ hierarchy.

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