from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]

def test_extension_retries_error_page_script_injection_before_failing():
    core = (ROOT / "extension" / "src" / "core.ts").read_text()

    assert "isBrowserErrorUrl" in core
    assert "isErrorPageScriptError" in core
    assert "chrome-error://" in core
    assert "edge-error://" in core
    assert "brave-error://" in core
    assert "about:neterror" in core
    assert "about:certerror" in core
    assert "isTransientScriptError(e)" in core

def test_read_only_dom_commands_have_error_page_fallbacks():
    dom = (ROOT / "extension" / "src" / "commands" / "dom.ts").read_text()

    assert "fallbackForErrorPageDomOp" in dom
    assert 'case "domExists":' in dom
    assert "return false;" in dom
    assert 'case "domQuery":' in dom
    assert 'case "extractText":' in dom
    assert "isBrowserErrorUrl(tabUrl)" in dom
    assert "isErrorPageScriptError(e)" in dom

def test_navigation_and_tabs_report_browser_error_pages():
    tabs = (ROOT / "extension" / "src" / "commands" / "tabs.ts").read_text()
    navigation = (ROOT / "extension" / "src" / "commands" / "navigation.ts").read_text()

    assert "lastUrl" in tabs
    assert "lastStatus" in tabs
    assert "showing an error page" in tabs
    assert "last URL:" in tabs
    assert "isBrowserErrorUrl" in navigation
    assert "showing an error page while waiting for load" in navigation