1 files changed, 46 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/tests/avoid-removeChild.js b/tools/lint/eslint/eslint-plugin-mozilla/tests/avoid-removeChild.js
new file mode 100644
index 0000000000..e6a146898d
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/tests/avoid-removeChild.js
@@ -0,0 +1,46 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+var rule = require("../lib/rules/avoid-removeChild");
+var RuleTester = require("eslint").RuleTester;
+
+const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: 6 } });
+
+// ------------------------------------------------------------------------------
+// Tests
+// ------------------------------------------------------------------------------
+
+function invalidCode(code, message) {
+  if (!message) {
+    message =
+      "use element.remove() instead of " +
+      "element.parentNode.removeChild(element)";
+  }
+  return { code, errors: [{ message, type: "CallExpression" }] };
+}
+
+ruleTester.run("avoid-removeChild", rule, {
+  valid: [
+    "elt.remove();",
+    "elt.parentNode.parentNode.removeChild(elt2.parentNode);",
+    "elt.parentNode.removeChild(elt2);",
+    "elt.removeChild(elt2);",
+  ],
+  invalid: [
+    invalidCode("elt.parentNode.removeChild(elt);"),
+    invalidCode("elt.parentNode.parentNode.removeChild(elt.parentNode);"),
+    invalidCode("$(e).parentNode.removeChild($(e));"),
+    invalidCode("$('e').parentNode.removeChild($('e'));"),
+    invalidCode(
+      "elt.removeChild(elt.firstChild);",
+      "use element.firstChild.remove() instead of " +
+        "element.removeChild(element.firstChild)"
+    ),
+  ],
+});