1 files changed, 109 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/DisplayNames/month.js b/js/src/tests/non262/Intl/DisplayNames/month.js
new file mode 100644
index 0000000000..39629b2a86
--- /dev/null
+++ b/js/src/tests/non262/Intl/DisplayNames/month.js
@@ -0,0 +1,109 @@
+// |reftest| skip-if(!this.hasOwnProperty('Intl')||!this.hasOwnProperty('addIntlExtras'))
+
+addMozIntlDisplayNames(this);
+
+const tests = {
+  "en": {
+    long: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December", 13],
+    short: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", 13],
+    narrow: ["J", "F", "M", "A", "M", "J", "J", "A", "S", "O", "N", "D", 13],
+  },
+  "de": {
+    long: ["Januar", "Februar", "März", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember", 13],
+    short: ["Jan", "Feb", "Mär", "Apr", "Mai", "Jun", "Jul", "Aug", "Sep", "Okt", "Nov", "Dez", 13],
+    narrow: ["J", "F", "M", "A", "M", "J", "J", "A", "S", "O", "N", "D", 13],
+  },
+  "fr": {
+    long: ["janvier", "février", "mars", "avril", "mai", "juin", "juillet", "août", "septembre", "octobre", "novembre", "décembre", 13],
+    short: ["janv.", "févr.", "mars", "avr.", "mai", "juin", "juil.", "août", "sept.", "oct.", "nov.", "déc.", 13],
+    narrow: ["J", "F", "M", "A", "M", "J", "J", "A", "S", "O", "N", "D", 13],
+  },
+  "zh": {
+    long: ["一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月", 13],
+    short: ["1月", "2月", "3月", "4月", "5月", "6月", "7月", "8月", "9月", "10月", "11月", "12月", 13],
+    narrow: ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", 13],
+  },
+  "zh-u-ca-chinese": {
+    long: ["正月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "腊月", 13],
+    short: ["正月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "腊月", 13],
+    narrow: ["正", "二", "三", "四", "五", "六", "七", "八", "九", "十", "冬", "腊", 13],
+  },
+  "en-u-ca-hebrew": {
+    long: ["Tishri", "Heshvan", "Kislev", "Tevet", "Shevat", "Adar I", "Adar", "Nisan", "Iyar", "Sivan", "Tamuz", "Av", "Elul"],
+    short: ["Tishri", "Heshvan", "Kislev", "Tevet", "Shevat", "Adar I", "Adar", "Nisan", "Iyar", "Sivan", "Tamuz", "Av", "Elul"],
+    narrow: ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13"],
+  },
+};
+
+for (let [locale, localeTests] of Object.entries(tests)) {
+  let defaultCalendar = new Intl.DateTimeFormat(locale).resolvedOptions().calendar;
+
+  for (let [style, styleTests] of Object.entries(localeTests)) {
+    let dn = new Intl.DisplayNames(locale, {type: "month", style});
+
+    let resolved = dn.resolvedOptions();
+    assertEq(resolved.locale, locale);
+    assertEq(resolved.calendar, defaultCalendar);
+    assertEq(resolved.style, style);
+    assertEq(resolved.type, "month");
+    assertEq(resolved.fallback, "code");
+
+    for (let i = 0; i < 13; i++) {
+      assertEq(dn.of(i + 1), String(styleTests[i]));
+
+      // Also works with strings.
+      assertEq(dn.of(String(i + 1)), String(styleTests[i]));
+
+      // Also works with objects.
+      assertEq(dn.of(Object(i + 1)), String(styleTests[i]));
+    }
+  }
+}
+
+{
+  let dn = new Intl.DisplayNames("en", {type: "month"});
+
+  // Performs ToString on the input and then validates the stringified result.
+  assertThrowsInstanceOf(() => dn.of(), RangeError);
+  assertThrowsInstanceOf(() => dn.of(null), RangeError);
+  assertThrowsInstanceOf(() => dn.of(Symbol()), TypeError);
+
+  // Throws an error if |code| isn't an integer.
+  assertThrowsInstanceOf(() => dn.of(1.5), RangeError);
+  assertThrowsInstanceOf(() => dn.of(-Infinity), RangeError);
+  assertThrowsInstanceOf(() => dn.of(Infinity), RangeError);
+  assertThrowsInstanceOf(() => dn.of(NaN), RangeError);
+
+  // Throws an error if outside of [1, 13].
+  assertThrowsInstanceOf(() => dn.of(-1), RangeError);
+  assertThrowsInstanceOf(() => dn.of(0), RangeError);
+  assertThrowsInstanceOf(() => dn.of(14), RangeError);
+}
+
+// Test fallback behaviour.
+{
+  let dn1 = new Intl.DisplayNames("en", {type: "month"});
+  let dn2 = new Intl.DisplayNames("en", {type: "month", fallback: "code"});
+  let dn3 = new Intl.DisplayNames("en", {type: "month", fallback: "none"});
+
+  assertEq(dn1.resolvedOptions().fallback, "code");
+  assertEq(dn2.resolvedOptions().fallback, "code");
+  assertEq(dn3.resolvedOptions().fallback, "none");
+
+  assertEq(dn1.resolvedOptions().calendar, "gregory");
+  assertEq(dn2.resolvedOptions().calendar, "gregory");
+  assertEq(dn3.resolvedOptions().calendar, "gregory");
+
+  // The Gregorian calendar doesn't have a thirteenth month.
+  assertEq(dn1.of("13"), "13");
+  assertEq(dn2.of("13"), "13");
+  assertEq(dn3.of("13"), undefined);
+
+  // The returned fallback is in "canonical" case.
+  assertEq(dn1.of("13.0"), "13");
+  assertEq(dn2.of("13.0"), "13");
+  assertEq(dn3.of("13.0"), undefined);
+}
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);