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Add DateTimeFormat tests for OrdinaryHasInstance

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Add tests to make sure DateTimeFormat does not call the instanceof
operator and calls OrdinaryHasInstance instead.

Refs: https://github.com/tc39/ecma402/pull/500
This commit is contained in:
Ujjwal Sharma 2021-02-16 19:57:19 +05:30 committed by Rick Waldron
parent 76ab0187c0
commit f6034ebe9f
3 changed files with 52 additions and 0 deletions
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16
test/intl402/DateTimeFormat/constructor-no-instanceof.js Normal file
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// Copyright (C) 2021 Igalia S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-Intl.DateTimeFormat.prototype.resolvedOptions
description: >
Tests that Intl.DateTimeFormat.prototype.resolvedOptions calls
OrdinaryHasInstance instead of the instanceof operator which includes a
Symbol.hasInstance lookup and call among other things.
---*/
Object.defineProperty(Intl.DateTimeFormat, Symbol.hasInstance, {
get() { throw new Test262Error(); }
});
Intl.DateTimeFormat();

18
test/intl402/DateTimeFormat/prototype/format/no-instanceof.js vendored Normal file
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// Copyright (C) 2021 Igalia S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-Intl.DateTimeFormat.prototype.resolvedOptions
description: >
Tests that Intl.DateTimeFormat.prototype.resolvedOptions calls
OrdinaryHasInstance instead of the instanceof operator which includes a
Symbol.hasInstance lookup and call among other things.
---*/
const dtf = new Intl.DateTimeFormat();
Object.defineProperty(Intl.DateTimeFormat, Symbol.hasInstance, {
get() { throw new Test262Error(); }
});
dtf.format;

18
test/intl402/DateTimeFormat/prototype/resolvedOptions/no-instanceof.js vendored Normal file
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// Copyright (C) 2021 Igalia S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-Intl.DateTimeFormat.prototype.resolvedOptions
description: >
Tests that Intl.DateTimeFormat.prototype.resolvedOptions calls
OrdinaryHasInstance instead of the instanceof operator which includes a
Symbol.hasInstance lookup and call among other things.
---*/
const dtf = new Intl.DateTimeFormat();
Object.defineProperty(Intl.DateTimeFormat, Symbol.hasInstance, {
get() { throw new Test262Error(); }
});
dtf.resolvedOptions();