/* Any copyright is dedicated to the Public Domain. * http://creativecommons.org/publicdomain/zero/1.0/ */ // Check that "use strict" JS errors generate errors, not warnings. "use strict"; add_task(async function () { const hud = await openNewTabAndConsole( "data:text/html;charset=utf8,empty page" ); await loadScriptURI("'use strict';var arguments;"); await waitForError( hud, "SyntaxError: 'arguments' can't be defined or assigned to in strict mode code" ); await loadScriptURI("'use strict';function f(a, a) {};"); await waitForError(hud, "SyntaxError: duplicate formal argument a"); await loadScriptURI("'use strict';var o = {get p() {}};o.p = 1;"); await waitForError(hud, 'TypeError: setting getter-only property "p"'); await loadScriptURI("'use strict';v = 1;"); await waitForError( hud, "ReferenceError: assignment to undeclared variable v" ); }); async function waitForError(hud, text) { await waitFor(() => findErrorMessage(hud, text)); ok(true, "Received expected error message"); } function loadScriptURI(script) { // On e10s, the exception is triggered in child process // and is ignored by test harness if (!Services.appinfo.browserTabsRemoteAutostart) { expectUncaughtException(); } const uri = "data:text/html;charset=utf8,"; return navigateTo(uri); }