mirror of https://github.com/tc39/test262.git
75 lines
1.6 KiB
JavaScript
75 lines
1.6 KiB
JavaScript
// Copyright (C) 2024 Kevin Gibbons. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-math.sumprecise
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description: Math.sumPrecise throws and closes the iterator if any element is not a Number
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features: [Math.sumPrecise]
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---*/
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assert.throws(TypeError, function () {
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Math.sumPrecise([{}]);
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});
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assert.throws(TypeError, function () {
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Math.sumPrecise([0n]);
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});
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var coercions = 0;
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var objectWithValueOf = {
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valueOf: function() {
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++coercions;
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throw new Test262Error("valueOf should not be called");
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},
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toString: function() {
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++coercions;
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throw new Test262Error("toString should not be called");
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}
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};
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assert.throws(TypeError, function () {
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Math.sumPrecise([objectWithValueOf]);
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});
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assert.sameValue(coercions, 0);
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assert.throws(TypeError, function () {
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Math.sumPrecise([objectWithValueOf, NaN]);
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});
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assert.sameValue(coercions, 0);
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assert.throws(TypeError, function () {
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Math.sumPrecise([NaN, objectWithValueOf]);
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});
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assert.sameValue(coercions, 0);
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assert.throws(TypeError, function () {
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Math.sumPrecise([-Infinity, Infinity, objectWithValueOf]);
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});
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assert.sameValue(coercions, 0);
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var nextCalls = 0;
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var closed = false;
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var iterator = {
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next: function () {
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++nextCalls;
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return { done: false, value: objectWithValueOf };
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},
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return: function () {
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closed = true;
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return {};
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}
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};
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var iterable = {
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[Symbol.iterator]: function () {
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return iterator;
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}
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};
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assert.throws(TypeError, function () {
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Math.sumPrecise(iterable);
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});
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assert.sameValue(coercions, 0);
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assert.sameValue(nextCalls, 1);
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assert.sameValue(closed, true);
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