mirror of https://github.com/tc39/test262.git
53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
// Copyright (C) 2017 Josh Wolfe. 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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description: Unary minus for BigInt object wrappers
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esid: sec-unary-minus-operator-runtime-semantics-evaluation
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info: |
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Runtime Semantics: Evaluation
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UnaryExpression : - UnaryExpression
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1. Let expr be the result of evaluating UnaryExpression.
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2. Let oldValue be ? ToNumeric(? GetValue(expr)).
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3. Let T be Type(oldValue).
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4. Return ? T::unaryMinus(oldValue).
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features: [BigInt, Symbol.toPrimitive]
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---*/
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assert.sameValue(-Object(1n), -1n, 'The value of -Object(1n) is -1n');
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assert.notSameValue(-Object(1n), 1n, 'The value of -Object(1n) is not 1n');
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assert.notSameValue(-Object(1n), Object(-1n), 'The value of -Object(1n) is not Object(-1n)');
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assert.sameValue(-Object(-1n), 1n, 'The value of -Object(-1n) is 1n');
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assert.notSameValue(-Object(-1n), -1n, 'The value of -Object(-1n) is not -1n');
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assert.notSameValue(-Object(-1n), Object(1n), 'The value of -Object(-1n) is not Object(1n)');
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assert.sameValue(-{
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[Symbol.toPrimitive]: function() {
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return 1n;
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},
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valueOf: function() {
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throw new Test262Error();
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},
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toString: function() {
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throw new Test262Error();
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}
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}, -1n, 'The value of -{[Symbol.toPrimitive]: function() {return 1n;}, valueOf: function() {throw new Test262Error();}, toString: function() {throw new Test262Error();}} is -1n');
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assert.sameValue(-{
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valueOf: function() {
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return 1n;
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},
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toString: function() {
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throw new Test262Error();
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}
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}, -1n, 'The value of -{valueOf: function() {return 1n;}, toString: function() {throw new Test262Error();}} is -1n');
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assert.sameValue(-{
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toString: function() {
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return 1n;
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}
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}, -1n, 'The value of -{toString: function() {return 1n;}} is -1n');
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