| // Copyright (C) 2018 Richard Gibson. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| description: > |
| Negative years must be serialized with at least four digits |
| esid: sec-date.prototype.todatestring |
| info: | |
| Date.prototype.toDateString ( ) |
| |
| 5. Return DateString(_t_). |
| ---*/ |
| |
| var negative1DigitYearDateString = (new Date('-000001-07-01T00:00Z')).toDateString(); |
| var negative2DigitYearDateString = (new Date('-000012-07-01T00:00Z')).toDateString(); |
| var negative3DigitYearDateString = (new Date('-000123-07-01T00:00Z')).toDateString(); |
| var negative4DigitYearDateString = (new Date('-001234-07-01T00:00Z')).toDateString(); |
| var negative5DigitYearDateString = (new Date('-012345-07-01T00:00Z')).toDateString(); |
| var negative6DigitYearDateString = (new Date('-123456-07-01T00:00Z')).toDateString(); |
| |
| // Date.prototype.toDateString emits values like "Fri Mar 28 2019". |
| // Extract and verify just the year. |
| assert.sameValue(negative1DigitYearDateString.split(' ')[3], '-0001', |
| 'Date.prototype.toDateString serializes year -1 to "-0001"'); |
| assert.sameValue(negative2DigitYearDateString.split(' ')[3], '-0012', |
| 'Date.prototype.toDateString serializes year -12 to "-0012"'); |
| assert.sameValue(negative3DigitYearDateString.split(' ')[3], '-0123', |
| 'Date.prototype.toDateString serializes year -123 to "-0123"'); |
| assert.sameValue(negative4DigitYearDateString.split(' ')[3], '-1234', |
| 'Date.prototype.toDateString serializes year -1234 to "-1234"'); |
| assert.sameValue(negative5DigitYearDateString.split(' ')[3], '-12345', |
| 'Date.prototype.toDateString serializes year -12345 to "-12345"'); |
| assert.sameValue(negative6DigitYearDateString.split(' ')[3], '-123456', |
| 'Date.prototype.toDateString serializes year -123456 to "-123456"'); |