mirror of https://github.com/tc39/test262.git
42 lines
1.6 KiB
JavaScript
42 lines
1.6 KiB
JavaScript
// Copyright (C) 2018 Andrew Paprocki. 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-date.parse
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es6id: 20.3.3.2
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description: >
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Date.parse return value is limited to specified time value maximum range
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info: |
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Date.parse ( string )
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parse interprets the resulting String as a date and time; it returns a
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Number, the UTC time value corresponding to the date and time.
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A Date object contains a Number indicating a particular instant in time to
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within a millisecond. Such a Number is called a time value.
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The actual range of times supported by ECMAScript Date objects is slightly
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smaller: exactly -100,000,000 days to 100,000,000 days measured relative to
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midnight at the beginning of 01 January, 1970 UTC. This gives a range of
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8,640,000,000,000,000 milliseconds to either side of 01 January, 1970 UTC.
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includes: [propertyHelper.js]
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---*/
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const minDateStr = "-271821-04-20T00:00:00.000Z";
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const minDate = new Date(-8640000000000000);
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assert.sameValue(minDate.toISOString(), minDateStr, "minDateStr");
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assert.sameValue(Date.parse(minDateStr), minDate.valueOf(), "parse minDateStr");
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const maxDateStr = "+275760-09-13T00:00:00.000Z";
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const maxDate = new Date(8640000000000000);
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assert.sameValue(maxDate.toISOString(), maxDateStr, "maxDateStr");
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assert.sameValue(Date.parse(maxDateStr), maxDate.valueOf(), "parse maxDateStr");
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const belowRange = "-271821-04-19T23:59:59.999Z";
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const aboveRange = "+275760-09-13T00:00:00.001Z";
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assert.sameValue(Date.parse(belowRange), NaN, "parse below minimum time value");
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assert.sameValue(Date.parse(aboveRange), NaN, "parse above maximum time value");
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