1 files changed, 27 insertions, 0 deletions
diff --git a/devtools/client/shared/test/browser_num-l10n.js b/devtools/client/shared/test/browser_num-l10n.js
new file mode 100644
index 000000000..fb4ef6cc7
--- /dev/null
+++ b/devtools/client/shared/test/browser_num-l10n.js
@@ -0,0 +1,27 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that the localization utils work properly.
+
+const { LocalizationHelper } = require("devtools/shared/l10n");
+
+function test() {
+  let l10n = new LocalizationHelper();
+
+  is(l10n.numberWithDecimals(1234.56789, 2), "1,234.57",
+    "The first number was properly localized.");
+  is(l10n.numberWithDecimals(0.0001, 2), "0",
+    "The second number was properly localized.");
+  is(l10n.numberWithDecimals(1.0001, 2), "1",
+    "The third number was properly localized.");
+  is(l10n.numberWithDecimals(NaN, 2), "0",
+    "NaN was properly localized.");
+  is(l10n.numberWithDecimals(null, 2), "0",
+    "`null` was properly localized.");
+  is(l10n.numberWithDecimals(undefined, 2), "0",
+    "`undefined` was properly localized.");
+
+  finish();
+}