String.prototype.has = function(s) { return this.includes(s); }

function dt(locale) {
  var date = new Date("2008-06-30T13:56:34");
  const dtOptions = { year: 'numeric', month: 'long', day: 'numeric',
                      hour: 'numeric', minute: 'numeric', second: 'numeric' };
  return date.toLocaleString(locale, dtOptions);
}

var all_passed = true;
const tests = 
[
 [dt("en-US").has("June"), "month name in en-US"],
 [dt("en-US").has("2008"), "year in en-US"],
 [dt("da").has("jun"), "month name in da"],
 [dt("da-DK") == dt("da"), "da same as da-DK"],
 [dt("en-GB").has("30") && dt("en-GB").has("June") &&
   dt("en-GB").indexOf("30") < dt("en-GB").indexOf("June"),
  "day before month in en-GB"],
 [dt("en-US").has("30") && dt("en-US").has("June") &&
   dt("en-US").indexOf("30") > dt("en-US").indexOf("June"),
  "month before day in en-US"],
 [dt("ja-JP").has("\u5E746\u670830\u65E5"), "year month and day in ja-JP"],
 // The Firefox locale code ja-JP-mac will be resolved to a BCP47-compliant
 // tag ja-JP-x-lvariant-mac by uloc_toLanguageTag
 [dt("ja-JP") == dt("ja-JP-x-lvariant-mac"), "ja-JP-x-lvariant-mac same as ja-JP"],
 [dt("nn-NO").has("juni"), "month name in nn-NO"],
 [dt("nb-NO").has("juni"), "month name in nb-NO"],
 // Bug 1261775 - failures on win10
 //[dt("no-NO").has("30. juni"), "month name in no-NO"],
 [dt("sv-SE").has("30 jun"), "month name in sv-SE"],
 [dt("kok").has("\u091C\u0942\u0928"), "month name in kok"],
 [dt("ta-IN").has("\u0B9C\u0BC2\u0BA9\u0BCD"), "month name in ta-IN"],
 [dt("ab-CD").length > 0, "fallback for ab-CD"]
];

function one_test(testcase, msg)
{
    if (!testcase) {
        all_passed = false;
        dump("Unexpected date format: " + msg + "\n");
    }
}

function run_test()
{
    for (var i = 0; i < tests.length; ++i) {
        one_test(tests[i][0], tests[i][1]);
    }
    Assert.ok(all_passed);
}
