53 lines
2.1 KiB
JavaScript
53 lines
2.1 KiB
JavaScript
// META: global=window,worker
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// META: title=IndexedDB: ES bindings - Inject a key into a value - Values bypass chain and setters
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// META: script=resources/support-promises.js
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'use_strict';
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promise_test(async t => {
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const db = await createDatabase(t, db => {
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db.createObjectStore('store', {autoIncrement: true, keyPath: 'a.b.c'});
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});
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Object.prototype.a = {b: {c: 'on proto'}};
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t.add_cleanup(() => { delete Object.prototype.a; });
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const tx = db.transaction('store', 'readwrite');
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tx.objectStore('store').put({});
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const result = await promiseForRequest(t, tx.objectStore('store').get(1));
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assert_true(result.hasOwnProperty('a'),
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'Result should have own-properties overriding prototype.');
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assert_true(result.a.hasOwnProperty('b'),
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'Result should have own-properties overriding prototype.');
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assert_true(result.a.b.hasOwnProperty('c'),
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'Result should have own-properties overriding prototype.');
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assert_equals(result.a.b.c, 1,
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'Own property should match primary key generator value');
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assert_equals(Object.prototype.a.b.c, 'on proto',
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'Prototype should not be modified');
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}, 'Returning values to script should bypass prototype chain');
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promise_test(async t => {
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const db = await createDatabase(t, db => {
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db.createObjectStore('store', {autoIncrement: true, keyPath: 'id'});
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});
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let setter_called = false;
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Object.defineProperty(Object.prototype, 'id', {
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configurable: true,
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set: value => { setter_called = true; },
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});
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t.add_cleanup(() => { delete Object.prototype['id']; });
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const tx = db.transaction('store', 'readwrite');
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tx.objectStore('store').put({});
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const result = await promiseForRequest(t, tx.objectStore('store').get(1));
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assert_false(setter_called,
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'Setter should not be called for key result.');
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assert_true(result.hasOwnProperty('id'),
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'Result should have own-property overriding prototype setter.');
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assert_equals(result.id, 1,
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'Own property should match primary key generator value');
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}, 'Returning values to script should bypass prototype setters');
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