From 34fb84c313e00564484fa69b2c40ea45a257c636 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hu=C3=A1ng=20J=C3=B9nli=C3=A0ng?= <jlhwung@gmail.com>
Date: Mon, 28 Mar 2022 10:02:25 -0400
Subject: [PATCH] add test case

---
 packages/babel-types/test/validators.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/packages/babel-types/test/validators.js b/packages/babel-types/test/validators.js
index 1272cefe96ec..33e17852d818 100644
--- a/packages/babel-types/test/validators.js
+++ b/packages/babel-types/test/validators.js
@@ -266,6 +266,20 @@ describe("validators", function () {
       });
     });
 
+    describe("ClassDeclaration", () => {
+      it("returns true if node is a class heritage", function () {
+        const node = t.identifier("A");
+        const parent = t.classDeclaration(
+          t.identifier("C"),
+          node,
+          t.classBody([]),
+          [],
+        );
+
+        expect(t.isReferenced(node, parent)).toBe(true);
+      });
+    });
+
     describe("exports", function () {
       it("returns false for re-exports", function () {
         const node = t.identifier("foo");