1 files changed, 76 insertions, 0 deletions
diff --git a/intl/l10n/test/test_datetimeformat.js b/intl/l10n/test/test_datetimeformat.js
new file mode 100644
index 0000000000..4c0794424b
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+++ b/intl/l10n/test/test_datetimeformat.js
@@ -0,0 +1,76 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const FIREFOX_RELEASE_TIMESTAMP = 1032800850000;
+const FIREFOX_RELEASE_DATE = new Date(FIREFOX_RELEASE_TIMESTAMP);
+
+add_task(function test_date_time_format() {
+  const bundle = new FluentBundle(["en-US"]);
+
+  bundle.addResource(
+    new FluentResource(`
+dt-arg = Just the arg is: {$dateArg}
+dt-bare = The bare date is: { DATETIME($dateArg) }
+dt-month-year = Months and year are not time-zone dependent here: { DATETIME($dateArg, month: "long") }
+dt-bad = This is a bad month: { DATETIME($dateArg, month: "oops") }
+# TODO - Bug 1707728:
+dt-timezone = The timezone: { DATETIME($dateArg, timezone: "America/New_York") }
+dt-unknown = Unknown: { DATETIME($dateArg, unknown: "unknown") }
+dt-style = Style formatting: { DATETIME($dateArg, dateStyle: "short", timeStyle: "short") }
+    `)
+  );
+
+  function testMessage(id, dateArg, expectedMessage) {
+    const message = bundle.formatPattern(bundle.getMessage(id).value, {
+      dateArg,
+    });
+
+    if (typeof expectedMessage === "object") {
+      // Assume regex.
+      ok(
+        expectedMessage.test(message),
+        `"${message}" matches regex: ${expectedMessage.toString()}`
+      );
+    } else {
+      // Assume string.
+      equal(message, expectedMessage);
+    }
+  }
+
+  // TODO - Bug 1707728 - Some of these are implemented as regexes since time zones are not
+  // supported in fluent messages as of yet. They could be simplified if a time zone were
+  // specified.
+  testMessage(
+    "dt-arg",
+    FIREFOX_RELEASE_DATE,
+    /^Just the arg is: (Sun|Mon|Tue) Sep \d+ 2002 \d+:\d+:\d+ .* \(.*\)$/
+  );
+  testMessage(
+    "dt-bare",
+    FIREFOX_RELEASE_TIMESTAMP,
+    /^The bare date is: Sep \d+, 2002, \d+:\d+:\d+ (AM|PM)$/
+  );
+  testMessage(
+    "dt-month-year",
+    FIREFOX_RELEASE_TIMESTAMP,
+    "Months and year are not time-zone dependent here: September"
+  );
+  testMessage(
+    "dt-bad",
+    FIREFOX_RELEASE_TIMESTAMP,
+    /^This is a bad month: Sep \d+, 2002, \d+:\d+:\d+ (AM|PM)$/
+  );
+  testMessage(
+    "dt-unknown",
+    FIREFOX_RELEASE_TIMESTAMP,
+    /^Unknown: Sep \d+, 2002, \d+:\d+:\d+ (AM|PM)$/
+  );
+  testMessage(
+    "dt-style",
+    FIREFOX_RELEASE_TIMESTAMP,
+    /^Style formatting: \d+\/\d+\/\d+, \d+:\d+ (AM|PM)$/
+  );
+
+// TODO - Bug 1707728
+// testMessage("dt-timezone", ...);
+});