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/* 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,<!DOCTYPE html>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,<!DOCTYPE html><script>" +
script +
"</script>";
return navigateTo(uri);
}
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