Test Math.hypot argument coercion (#3177)

* Test Math.hypot argument coercion

* Fix constructor
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Richard Gibson 2021-09-03 15:59:25 -04:00 committed by GitHub
parent 2fcc43df17
commit 50f3fca7a0
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2 changed files with 43 additions and 1 deletions

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// Copyright (c) 2021 Richard Gibson. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
Math.hypot should coerce all arguments before inspecting them.
esid: sec-math.hypot
info: |
1. Let _coerced_ be a new empty List.
2. For each element _arg_ of _args_, do
a. Let _n_ be ? ToNumber(_arg_).
b. Append _n_ to _coerced_.
3. For each element _number_ of _coerced_, do
---*/
let uniqueErrorCount = 0;
class UniqueError extends Error {
constructor() { super(); uniqueErrorCount++; }
}
assert.throws(
UniqueError,
function() {
Math.hypot(
Infinity,
-Infinity,
NaN,
0,
-0,
{valueOf(){ throw new UniqueError(); }},
{valueOf(){ throw new UniqueError(); }},
);
},
'Math.hypot propagates an abrupt completion from coercing an argument to Number'
);
assert.sameValue(uniqueErrorCount, 1,
'Math.hypot aborts argument processing at the first abrupt completion');

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// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-math.hypot
es6id: 20.2.2.18
author: Ryan Lewis
description: Return 0 if all arguments being are 0 or -0.
description: Math.hypot should return 0 if all arguments are 0 or -0.
---*/
assert.sameValue(Math.hypot(0), 0, 'Math.hypot(0)');
assert.sameValue(Math.hypot(-0), 0, 'Math.hypot(-0)');
assert.sameValue(Math.hypot(0, 0), 0, 'Math.hypot(0, 0)');
assert.sameValue(Math.hypot(0, -0), 0, 'Math.hypot(0, -0)');
assert.sameValue(Math.hypot(-0, 0), 0, 'Math.hypot(-0, 0)');
assert.sameValue(Math.hypot(-0, -0), 0, 'Math.hypot(-0, -0)');
assert.sameValue(Math.hypot(0, -0, -0), 0, 'Math.hypot(0, -0, -0)');