1 files changed, 31 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/xpcshell/test_webconsole_l10n.js b/devtools/client/webconsole/test/xpcshell/test_webconsole_l10n.js
new file mode 100644
index 0000000000..3b4208c206
--- /dev/null
+++ b/devtools/client/webconsole/test/xpcshell/test_webconsole_l10n.js
@@ -0,0 +1,31 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const { require } = ChromeUtils.importESModule(
+  "resource://devtools/shared/loader/Loader.sys.mjs"
+);
+
+function run_test() {
+  const TEST_TIMESTAMP = 12345678;
+  const WCUL10n = require("resource://devtools/client/webconsole/utils/l10n.js");
+  const date = new Date(TEST_TIMESTAMP);
+  const localizedString = WCUL10n.timestampString(TEST_TIMESTAMP);
+  ok(
+    localizedString.includes(date.getHours()),
+    "the localized timestamp contains the hours"
+  );
+  ok(
+    localizedString.includes(date.getMinutes()),
+    "the localized timestamp contains the minutes"
+  );
+  ok(
+    localizedString.includes(date.getSeconds()),
+    "the localized timestamp contains the seconds"
+  );
+  ok(
+    localizedString.includes(date.getMilliseconds()),
+    "the localized timestamp contains the milliseconds"
+  );
+}