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ai-ag2026
73 lines
3.5 KiB
Python
73 lines
3.5 KiB
Python
"""Regression coverage for the browser-offline banner and auto-refresh loop."""
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from __future__ import annotations
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import pathlib
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REPO_ROOT = pathlib.Path(__file__).parent.parent
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UI_JS = (REPO_ROOT / "static" / "ui.js").read_text(encoding="utf-8")
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MESSAGES_JS = (REPO_ROOT / "static" / "messages.js").read_text(encoding="utf-8")
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INDEX_HTML = (REPO_ROOT / "static" / "index.html").read_text(encoding="utf-8")
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STYLE_CSS = (REPO_ROOT / "static" / "style.css").read_text(encoding="utf-8")
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I18N_JS = (REPO_ROOT / "static" / "i18n.js").read_text(encoding="utf-8")
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def test_offline_banner_markup_styles_and_copy_exist():
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assert 'id="offlineBanner"' in INDEX_HTML
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assert 'role="status"' in INDEX_HTML
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assert 'aria-live="assertive"' in INDEX_HTML
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assert 'onclick="checkOfflineRecoveryNow()"' in INDEX_HTML
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assert ".offline-banner" in STYLE_CSS
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assert ".offline-banner.visible" in STYLE_CSS
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assert ".offline-action[disabled]" in STYLE_CSS
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for key in (
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"offline_title",
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"offline_browser_detail",
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"offline_network_detail",
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"offline_autorefresh",
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"offline_check_now",
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"offline_checking",
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"offline_stream_waiting",
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):
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assert key in I18N_JS
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def test_offline_monitor_patches_fetch_and_auto_reloads_after_health_probe():
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assert "const OFFLINE_RECHECK_MS=2500" in UI_JS
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assert "window.fetch=async function(...args)" in UI_JS
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assert "window.addEventListener('offline',()=>showOfflineBanner('browser'))" in UI_JS
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assert "window.addEventListener('online',()=>{if(_offlineVisible)checkOfflineRecoveryNow();})" in UI_JS
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assert "setInterval(()=>{checkOfflineRecoveryNow();},OFFLINE_RECHECK_MS)" in UI_JS
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assert "new URL('health',document.baseURI||location.href)" in UI_JS
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assert "window.location.reload()" in UI_JS
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def test_offline_recovery_probe_is_serialized_and_stops_timer_before_reload():
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assert "let _offlineProbePromise=null" in UI_JS
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assert "let _offlineHealthProbePromise=null" in UI_JS
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assert "if(!_offlineVisible)return false;" in UI_JS
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assert "if(!_offlineVisible&&!_offlineFetchPatched)return false;" not in UI_JS
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assert "finally{_offlineProbePromise=null;}" in UI_JS
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assert "finally{_offlineHealthProbePromise=null;}" in UI_JS
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reload_idx = UI_JS.find("window.location.reload()")
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assert reload_idx != -1
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assert UI_JS.rfind("_stopOfflineProbeTimer();", 0, reload_idx) != -1
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def test_fetch_typeerror_is_gated_by_health_probe_not_blind_banner():
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fetch_patch = UI_JS.split("window.fetch=async function(...args){", 1)[1].split("function initOfflineMonitor", 1)[0]
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assert "function _isAbortError(e)" in UI_JS
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assert "e instanceof TypeError&&!_isAbortError(e)" in fetch_patch
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assert "void _probeOfflineRecovery().then(ok=>{if(!ok)showOfflineBanner('network');})" in fetch_patch
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assert "if(!_browserReportsOnline())showOfflineBanner('browser');" in fetch_patch
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assert "e instanceof TypeError||!_browserReportsOnline()" not in fetch_patch
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def test_sse_network_error_defers_to_offline_banner_instead_of_inline_error():
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assert "function _deferStreamErrorIfOffline()" in MESSAGES_JS
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assert "t('offline_stream_waiting')" in MESSAGES_JS
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assert "if(_deferStreamErrorIfOffline()) return;" in MESSAGES_JS
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error_handler = MESSAGES_JS.split("source.addEventListener('error',async e=>{", 1)[1].split("source.addEventListener('cancel'", 1)[0]
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assert error_handler.find("_deferStreamErrorIfOffline()") < error_handler.rfind("_handleStreamError()")
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