From db965f659fb818bc44c93eab68f616ded2087305 Mon Sep 17 00:00:00 2001
From: Andrew Leedham <AndrewLeedham@Outlook.com>
Date: Thu, 16 Apr 2020 22:59:08 +0100
Subject: [PATCH] test: no default

---
 packages/babel-preset-env/test/normalize-options.spec.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/babel-preset-env/test/normalize-options.spec.js b/packages/babel-preset-env/test/normalize-options.spec.js
index 869e864051d4..959cb09fd611 100644
--- a/packages/babel-preset-env/test/normalize-options.spec.js
+++ b/packages/babel-preset-env/test/normalize-options.spec.js
@@ -203,6 +203,10 @@ describe("normalize-options", () => {
       expect(validateStringOption("test", "value", "default")).toBe("value");
     });
 
+    it("no default returns undefined", () => {
+      expect(validateStringOption("test", undefined)).toBe(undefined);
+    });
+
     it("array option is invalid", () => {
       expect(() => {
         validateStringOption("test", [], "default");