From 42752a430e73d55d1da86201887cef3c98b5bafa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=B2=20Ribaudo?= <nicolo.ribaudo@gmail.com>
Date: Tue, 2 Mar 2021 15:22:20 +0100
Subject: [PATCH] Don't show warning from spied `console.warn` (#12946)

---
 packages/babel-cli/test/index.js | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/packages/babel-cli/test/index.js b/packages/babel-cli/test/index.js
index b605f3b623e7..a8fc722456cd 100644
--- a/packages/babel-cli/test/index.js
+++ b/packages/babel-cli/test/index.js
@@ -274,10 +274,20 @@ fs.readdirSync(fixtureLoc).forEach(function (binName) {
 describe("util.js", () => {
   describe("chmod", () => {
     it("should warn the user if chmod fails", () => {
-      const spyConsoleWarn = jest.spyOn(console, "warn");
-      // should expect a string as first argument
+      const spyConsoleWarn = jest
+        .spyOn(console, "warn")
+        .mockImplementation(() => {});
+
+      // The first argument should be a string.
+      // The real reason chmod will fail is due to wrong permissions,
+      // but this is enough to cause a failure.
       chmod(100, "file.js");
+
       expect(spyConsoleWarn).toHaveBeenCalledTimes(1);
+      expect(spyConsoleWarn).toHaveBeenCalledWith(
+        "Cannot change permissions of file.js",
+      );
+
       spyConsoleWarn.mockRestore();
     });
   });