1 files changed, 114 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/DateTimeFormat/prototype/format/timedatestyle-en.js b/js/src/tests/test262/intl402/DateTimeFormat/prototype/format/timedatestyle-en.js
new file mode 100644
index 0000000000..36893b5f9a
--- /dev/null
+++ b/js/src/tests/test262/intl402/DateTimeFormat/prototype/format/timedatestyle-en.js
@@ -0,0 +1,114 @@
+// Copyright 2019 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-date-time-style-pattern
+description: Checks basic handling of timeStyle and dateStyle.
+features: [Intl.DateTimeFormat-datetimestyle, Array.prototype.includes]
+locale: [en-US]
+---*/
+
+// Tolerate implementation variance by expecting consistency without being prescriptive.
+// TODO: can we change tests to be less reliant on CLDR formats while still testing that
+// Temporal and Intl are behaving as expected?
+const usDayPeriodSpace =
+  new Intl.DateTimeFormat("en-US", { timeStyle: "short" })
+    .formatToParts(0)
+    .find((part, i, parts) => part.type === "literal" && parts[i + 1].type === "dayPeriod")?.value || "";
+
+const date = new Date("1886-05-01T14:12:47Z");
+const dateOptions = [
+  ["full", "Saturday, May 1, 1886"],
+  ["long", "May 1, 1886"],
+  ["medium", "May 1, 1886"],
+  ["short", "5/1/86"],
+];
+
+const timeOptions = [
+  ["full", `2:12:47${usDayPeriodSpace}PM Coordinated Universal Time`, "14:12:47 Coordinated Universal Time"],
+  ["long", `2:12:47${usDayPeriodSpace}PM UTC`, "14:12:47 UTC"],
+  ["medium", `2:12:47${usDayPeriodSpace}PM`, "14:12:47"],
+  ["short", `2:12${usDayPeriodSpace}PM`, "14:12"],
+];
+
+const options12 = [
+  { "hour12": true },
+  { "hourCycle": "h11" },
+  { "hourCycle": "h12" },
+  { "hourCycle": "h23", "hour12": true },
+  { "hourCycle": "h24", "hour12": true },
+];
+
+const options24 = [
+  { "hour12": false },
+  { "hourCycle": "h23" },
+  { "hourCycle": "h24" },
+  { "hourCycle": "h11", "hour12": false },
+  { "hourCycle": "h12", "hour12": false },
+];
+
+for (const [dateStyle, expected] of dateOptions) {
+  const dtf = new Intl.DateTimeFormat("en-US", {
+    dateStyle,
+    timeZone: "UTC",
+  });
+
+  const dateString = dtf.format(date);
+  assert.sameValue(dateString, expected, `Result for ${dateStyle}`);
+}
+
+for (const [timeStyle, expected12, expected24] of timeOptions) {
+  const check = (locale, options, expected) => {
+    const dtf = new Intl.DateTimeFormat(locale, {
+      timeStyle,
+      timeZone: "UTC",
+      ...options
+    });
+
+    const dateString = dtf.format(date);
+    assert.sameValue(dateString, expected, `Result for ${timeStyle} with ${JSON.stringify(options)}`);
+  };
+
+  check("en-US", {}, expected12);
+  check("en-US-u-hc-h11", {}, expected12);
+  check("en-US-u-hc-h12", {}, expected12);
+  check("en-US-u-hc-h23", {}, expected24);
+  check("en-US-u-hc-h24", {}, expected24);
+
+  for (const hourOptions of options12) {
+    check("en-US", hourOptions, expected12);
+    check("en-US-u-hc-h11", hourOptions, expected12);
+    check("en-US-u-hc-h12", hourOptions, expected12);
+    check("en-US-u-hc-h23", hourOptions, expected12);
+    check("en-US-u-hc-h24", hourOptions, expected12);
+  }
+
+  for (const hourOptions of options24) {
+    check("en-US", hourOptions, expected24);
+    check("en-US-u-hc-h11", hourOptions, expected24);
+    check("en-US-u-hc-h12", hourOptions, expected24);
+    check("en-US-u-hc-h23", hourOptions, expected24);
+    check("en-US-u-hc-h24", hourOptions, expected24);
+  }
+}
+
+for (const [dateStyle, expectedDate] of dateOptions) {
+  for (const [timeStyle, expectedTime] of timeOptions) {
+    const dtf = new Intl.DateTimeFormat("en-US", {
+      dateStyle,
+      timeStyle,
+      timeZone: "UTC",
+    });
+    const result1 = [expectedDate, ", ", expectedTime].join("");
+    const result2 = [expectedDate, " at ", expectedTime].join("");
+
+    const dateString = dtf.format(date);
+    assert.sameValue(
+      [result1, result2].includes(dateString),
+      true,
+      `Result for date=${dateStyle} and time=${timeStyle}`
+    );
+  }
+}
+
+reportCompare(0, 0);