diff --git a/__tests__/authutil.test.ts b/__tests__/authutil.test.ts
index 85dcb313..5c4e1703 100644
--- a/__tests__/authutil.test.ts
+++ b/__tests__/authutil.test.ts
@@ -20,6 +20,7 @@ describe('authutil tests', () => {
         .toString(36)
         .substring(7)
     );
+    process.env['GITHUB_ENV'] = ''; // Stub out ENV file functionality so we can verify it writes to standard out
     const tempDir = path.join(_runnerDir, randPath, 'temp');
     await io.rmRF(tempDir);
     await io.mkdirP(tempDir);
diff --git a/__tests__/installer.test.ts b/__tests__/installer.test.ts
index 379ffbfd..e69be0ce 100644
--- a/__tests__/installer.test.ts
+++ b/__tests__/installer.test.ts
@@ -488,4 +488,3 @@ describe('setup-node', () => {
     });
   });
 });
-