58 lines
1.6 KiB
JavaScript
58 lines
1.6 KiB
JavaScript
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// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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assertEquals(1, %ToNumber(1));
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assertEquals(1, %_ToNumber(1));
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assertEquals(.5, %ToNumber(.5));
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assertEquals(.5, %_ToNumber(.5));
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assertEquals(0, %ToNumber(null));
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assertEquals(0, %_ToNumber(null));
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assertEquals(1, %ToNumber(true));
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assertEquals(1, %_ToNumber(true));
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assertEquals(0, %ToNumber(false));
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assertEquals(0, %_ToNumber(false));
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assertEquals(NaN, %ToNumber(undefined));
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assertEquals(NaN, %_ToNumber(undefined));
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assertEquals(-1, %ToNumber("-1"));
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assertEquals(-1, %_ToNumber("-1"));
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assertEquals(123, %ToNumber("123"));
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assertEquals(123, %_ToNumber("123"));
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assertEquals(NaN, %ToNumber("random text"));
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assertEquals(NaN, %_ToNumber("random text"));
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assertThrows(function() { %ToNumber(Symbol.toPrimitive) }, TypeError);
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assertThrows(function() { %_ToNumber(Symbol.toPrimitive) }, TypeError);
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var a = { toString: function() { return 54321 }};
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assertEquals(54321, %ToNumber(a));
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assertEquals(54321, %_ToNumber(a));
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var b = { valueOf: function() { return 42 }};
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assertEquals(42, %ToNumber(b));
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assertEquals(42, %_ToNumber(b));
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var c = {
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toString: function() { return "x"},
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valueOf: function() { return 123 }
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};
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assertEquals(123, %ToNumber(c));
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assertEquals(123, %_ToNumber(c));
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var d = {
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[Symbol.toPrimitive]: function(hint) {
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assertEquals("number", hint);
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return 987654321;
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}
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};
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assertEquals(987654321, %ToNumber(d));
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assertEquals(987654321, %_ToNumber(d));
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