"""
Step 10 — PWA Finalization & Polish tests.
Tests manifest presence and validity, service worker registration,
icon availability, and install prompt absence in test environment.
"""
import json
import pytest
def test_manifest_link_present(page, app_url):
"""HTML page includes a pointing to /manifest.json."""
page.goto(app_url)
handle = page.query_selector('link[rel="manifest"]')
assert handle is not None, " not found in "
href = handle.get_attribute("href")
assert href == "/manifest.json", f"Unexpected manifest href: {href}"
def test_manifest_json_valid(page, app_url):
"""manifest.json is reachable, valid JSON, and has required PWA fields."""
response = page.request.get(f"{app_url}/manifest.json")
assert response.status == 200, f"manifest.json returned {response.status}"
manifest = json.loads(response.text())
assert manifest.get("name"), "manifest missing 'name'"
assert manifest.get("display") == "standalone", "manifest display should be 'standalone'"
icons = manifest.get("icons", [])
assert len(icons) >= 2, "manifest should declare at least 2 icons"
sizes = {icon["sizes"] for icon in icons}
assert "192x192" in sizes, "192x192 icon missing from manifest"
assert "512x512" in sizes, "512x512 icon missing from manifest"
def test_icon_192_accessible(page, app_url):
"""icon-192.png is served with a 200 status."""
response = page.request.get(f"{app_url}/icon-192.png")
assert response.status == 200, f"icon-192.png returned {response.status}"
def test_icon_512_accessible(page, app_url):
"""icon-512.png is served with a 200 status."""
response = page.request.get(f"{app_url}/icon-512.png")
assert response.status == 200, f"icon-512.png returned {response.status}"
def test_service_worker_registered(page, app_url):
"""Service worker is registered in the browser after page load."""
page.goto(app_url)
page.wait_for_selector('[data-testid="db-loading"]', state="detached", timeout=15000)
registration = page.evaluate(
"() => navigator.serviceWorker.getRegistration().then(r => !!r)"
)
assert registration, "No service worker registration found"
def test_install_prompt_hidden_by_default(page, app_url):
"""Install prompt button is not shown in the test environment (beforeinstallprompt not fired)."""
page.goto(app_url)
page.wait_for_selector('[data-testid="db-loading"]', state="detached", timeout=15000)
btn = page.query_selector('[data-testid="install-prompt-btn"]')
assert btn is None, "Install prompt button should not appear without beforeinstallprompt"
def test_favicon_linked(page, app_url):
"""HTML page includes a for the favicon."""
page.goto(app_url)
handle = page.query_selector('link[rel="icon"]')
assert handle is not None, " not found in "
def test_apple_touch_icon_linked(page, app_url):
"""HTML page includes a ."""
page.goto(app_url)
handle = page.query_selector('link[rel="apple-touch-icon"]')
assert handle is not None, " not found in "
def test_nav_has_aria_label(page, app_url):
"""Main navigation has an aria-label for screen readers."""
page.goto(app_url)
page.wait_for_selector('[data-testid="db-loading"]', state="detached", timeout=15000)
nav = page.query_selector("nav.navbar")
assert nav is not None, "