mirror of https://github.com/tc39/test262.git
18 lines
488 B
JavaScript
18 lines
488 B
JavaScript
function assert(b) {
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if (!b)
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throw new Error("Bad assertion");
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}
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let getter = Object.getOwnPropertyDescriptor({get foo(){}}, "foo").get;
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Object.defineProperty(getter, Symbol.hasInstance, {value:undefined});
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let y = {};
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Object.defineProperty(getter, "prototype", {get: Uint8Array});
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let error = null;
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try {
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y instanceof getter;
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} catch(e) {
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error = e;
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}
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assert(!!error);
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assert(error.toString() === "TypeError: calling Uint8Array constructor without new is invalid");
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