diff --git a/src/assert-valid-package-name.test.ts b/src/assert-valid-package-name.test.ts
new file mode 100644
index 0000000..e913bda
--- /dev/null
+++ b/src/assert-valid-package-name.test.ts
@@ -0,0 +1,8 @@
+import { expect, test } from "vitest";
+import { assertValidPackageName } from "./assert-valid-package-name";
+
+test("assertValidPackageName", () => {
+	expect(() => assertValidPackageName("")).toThrow();
+	expect(() => assertValidPackageName("foo")).not.toThrow();
+	expect(() => assertValidPackageName("@foo/bar")).not.toThrow();
+});