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"use strict";
var { ObjectUtils } = ChromeUtils.import(
"resource://gre/modules/ObjectUtils.jsm"
);
var { PromiseTestUtils } = ChromeUtils.import(
"resource://testing-common/PromiseTestUtils.jsm"
);
add_task(async function test_strict() {
let loose = { a: 1 };
let strict = ObjectUtils.strict(loose);
loose.a; // Should not throw.
loose.b || undefined; // Should not throw.
strict.a; // Should not throw.
PromiseTestUtils.expectUncaughtRejection(/No such property: "b"/);
Assert.throws(() => strict.b, /No such property: "b"/);
"b" in strict; // Should not throw.
strict.b = 2;
strict.b; // Should not throw.
PromiseTestUtils.expectUncaughtRejection(/No such property: "c"/);
Assert.throws(() => strict.c, /No such property: "c"/);
"c" in strict; // Should not throw.
loose.c = 3;
strict.c; // Should not throw.
});
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