1 files changed, 34 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/tests/avoid-Date-timing.js b/tools/lint/eslint/eslint-plugin-mozilla/tests/avoid-Date-timing.js
new file mode 100644
index 0000000000..37fc424617
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/tests/avoid-Date-timing.js
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+var rule = require("../lib/rules/avoid-Date-timing");
+var RuleTester = require("eslint").RuleTester;
+
+const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: "latest" } });
+
+// ------------------------------------------------------------------------------
+// Tests
+// ------------------------------------------------------------------------------
+
+function invalidCode(code, type, message) {
+  return { code, errors: [{ messageId: "usePerfNow", type }] };
+}
+
+ruleTester.run("avoid-Date-timing", rule, {
+  valid: [
+    "new Date('2017-07-11');",
+    "new Date(1499790192440);",
+    "new Date(2017, 7, 11);",
+    "Date.UTC(2017, 7);",
+  ],
+  invalid: [
+    invalidCode("Date.now();", "CallExpression"),
+    invalidCode("new Date();", "NewExpression"),
+  ],
+});