diff --git a/src/utility/getUrlExtension.test.ts b/src/utility/getUrlExtension.test.ts
new file mode 100644
index 0000000000000000000000000000000000000000..2c9028da8e8d1b9df8d90c470a8e949cad63142f
--- /dev/null
+++ b/src/utility/getUrlExtension.test.ts
@@ -0,0 +1,12 @@
+import { describe, test, expect } from "vitest";
+import getUrlExtension from "./getUrlExtension";
+
+describe("getUrlExtension", () => {
+	test("should return the extension of a url", () => {
+		expect(getUrlExtension("https://example.com/file.mp3")).toBe("mp3");
+	});
+
+	test("should return the extension of a url with params", () => {
+		expect(getUrlExtension("https://example.com/file.mp3?key=value&key2=.mpegvalue")).toBe("mp3");
+	});
+});