diff --git a/src/utils/common.test.ts b/src/utils/common.test.ts
new file mode 100644
index 000000000..a9000eda0
--- /dev/null
+++ b/src/utils/common.test.ts
@@ -0,0 +1,13 @@
+import { describe, expect, it } from "vitest"
+import { unescapeHTML } from "./common"
+
+describe("common utilities", () => {
+  it("unescapes HTML entities in VNode children", () => {
+    const node = {
+      type: "div",
+      children: "<b>bold</b> & beautiful",
+    }
+    const result = unescapeHTML(node)
+    expect(result.children).toBe("<b>bold</b> & beautiful")
+  })
+})