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     27 
     28 // Test if resolvedOptions() returns expected fields/values.
     29 
     30 // Default (year, month, day) formatter.
     31 var dtfDefault = Intl.DateTimeFormat('en-US');
     32 var resolved = dtfDefault.resolvedOptions();
     33 
     34 assertTrue(resolved.hasOwnProperty('locale'));
     35 assertEquals('en-US', resolved.locale);
     36 assertTrue(resolved.hasOwnProperty('numberingSystem'));
     37 assertEquals('latn', resolved.numberingSystem);
     38 assertTrue(resolved.hasOwnProperty('calendar'));
     39 assertEquals('gregory', resolved.calendar);
     40 assertTrue(resolved.hasOwnProperty('timeZone'));
     41 assertEquals(getDefaultTimeZone(), resolved.timeZone);
     42 // These are in by default.
     43 assertTrue(resolved.hasOwnProperty('year'));
     44 assertEquals('numeric', resolved.year);
     45 assertTrue(resolved.hasOwnProperty('month'));
     46 assertEquals('numeric', resolved.month);
     47 assertTrue(resolved.hasOwnProperty('day'));
     48 assertEquals('numeric', resolved.day);
     49 // These shouldn't be in by default.
     50 assertFalse(resolved.hasOwnProperty('era'));
     51 assertFalse(resolved.hasOwnProperty('timeZoneName'));
     52 assertFalse(resolved.hasOwnProperty('weekday'));
     53 assertFalse(resolved.hasOwnProperty('hour12'));
     54 assertFalse(resolved.hasOwnProperty('hour'));
     55 assertFalse(resolved.hasOwnProperty('minute'));
     56 assertFalse(resolved.hasOwnProperty('second'));
     57 
     58 // Time formatter.
     59 var dtfTime = Intl.DateTimeFormat(
     60   'sr-RS', {hour: 'numeric', minute: 'numeric', second: 'numeric'});
     61 resolved = dtfTime.resolvedOptions();
     62 
     63 assertTrue(resolved.hasOwnProperty('locale'));
     64 assertTrue(resolved.hasOwnProperty('numberingSystem'));
     65 assertTrue(resolved.hasOwnProperty('calendar'));
     66 assertTrue(resolved.hasOwnProperty('timeZone'));
     67 assertTrue(resolved.hasOwnProperty('hour12'));
     68 assertEquals(false, resolved.hour12);
     69 assertTrue(resolved.hasOwnProperty('hour'));
     70 assertEquals('2-digit', resolved.hour);
     71 assertTrue(resolved.hasOwnProperty('minute'));
     72 assertEquals('2-digit', resolved.minute);
     73 assertTrue(resolved.hasOwnProperty('second'));
     74 assertEquals('2-digit', resolved.second);
     75 // Didn't ask for them.
     76 assertFalse(resolved.hasOwnProperty('year'));
     77 assertFalse(resolved.hasOwnProperty('month'));
     78 assertFalse(resolved.hasOwnProperty('day'));
     79 assertFalse(resolved.hasOwnProperty('era'));
     80 assertFalse(resolved.hasOwnProperty('timeZoneName'));
     81 assertFalse(resolved.hasOwnProperty('weekday'));
     82 
     83 // Full formatter.
     84 var dtfFull = Intl.DateTimeFormat(
     85   'en-US', {weekday: 'short', era: 'short', year: 'numeric', month: 'short',
     86             day: 'numeric', hour: 'numeric', minute: 'numeric',
     87             second: 'numeric', timeZoneName: 'short', timeZone: 'UTC'});
     88 resolved = dtfFull.resolvedOptions();
     89 
     90 assertTrue(resolved.hasOwnProperty('locale'));
     91 assertTrue(resolved.hasOwnProperty('numberingSystem'));
     92 assertTrue(resolved.hasOwnProperty('calendar'));
     93 assertTrue(resolved.hasOwnProperty('timeZone'));
     94 assertTrue(resolved.hasOwnProperty('hour12'));
     95 assertEquals(true, resolved.hour12);
     96 assertTrue(resolved.hasOwnProperty('hour'));
     97 assertTrue(resolved.hasOwnProperty('minute'));
     98 assertTrue(resolved.hasOwnProperty('second'));
     99 assertTrue(resolved.hasOwnProperty('year'));
    100 assertTrue(resolved.hasOwnProperty('month'));
    101 assertTrue(resolved.hasOwnProperty('day'));
    102 assertTrue(resolved.hasOwnProperty('era'));
    103 assertEquals('short', resolved.era);
    104 assertTrue(resolved.hasOwnProperty('timeZoneName'));
    105 assertEquals('short', resolved.timeZoneName);
    106 assertTrue(resolved.hasOwnProperty('weekday'));
    107 assertEquals('short', resolved.weekday);
    108