1 files changed, 70 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 0000000000..0bdda44f5d
--- /dev/null
+++ b/devtools/client/shared/test/browser_num-l10n.js
@@ -0,0 +1,70 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that the localization utils work properly.
+
+function test() {
+  const 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."
+  );
+  is(
+    l10n.numberWithDecimals(-1234.56789, 2),
+    "-1,234.57",
+    "Negative number was properly localized."
+  );
+  is(
+    l10n.numberWithDecimals(1234.56789, 0),
+    "1,235",
+    "Number was properly localized with decimals set 0."
+  );
+  is(
+    l10n.numberWithDecimals(-1234.56789, 0),
+    "-1,235",
+    "Negative number was properly localized with decimals set 0."
+  );
+  is(
+    l10n.numberWithDecimals(12, 2),
+    "12",
+    "The integer was properly localized, without decimals."
+  );
+  is(
+    l10n.numberWithDecimals(-12, 2),
+    "-12",
+    "The negative integer was properly localized, without decimals."
+  );
+  is(
+    l10n.numberWithDecimals(1200, 2),
+    "1,200",
+    "The big integer was properly localized, no decimals but with a separator."
+  );
+  is(
+    l10n.numberWithDecimals(-1200, 2),
+    "-1,200",
+    "The negative big integer was properly localized, no decimals but with a separator."
+  );
+
+  finish();
+}