v8/test/intl/date-format/parse-MMMdy.js

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// Testing v8Parse method for date and time pattern.
// Month is represented as a short name.

var dtf = new Intl.DateTimeFormat(['en'],
                                  {year: 'numeric', month: 'short',
                                   day: 'numeric',
                                   timeZone: 'America/Los_Angeles'});

// Make sure we have pattern we expect (may change in the future).
assertEquals('MMM d, y', dtf.resolved.pattern);

var date = dtf.v8Parse('Feb 4, 1974');
assertEquals(1974, date.getUTCFullYear());
assertEquals(1, date.getUTCMonth());
assertEquals(4, date.getUTCDate());

// Missing , in the pattern.
assertEquals(undefined, dtf.v8Parse('Feb 4 1974'));

// Extra "th" after 4 in the pattern.
assertEquals(undefined, dtf.v8Parse('Feb 4th, 1974'));

// Wrong pattern.
assertEquals(undefined, dtf.v8Parse('2/4/1974'));