diff --git a/src/testSession.ts b/src/testSession.ts
index d280d004..d0f12522 100644
--- a/src/testSession.ts
+++ b/src/testSession.ts
@@ -168,9 +168,7 @@ export class TestSession extends AsyncOptionalCreatable<TestSessionOptions> {
     );
 
     const authStrategy =
-      !this.options.devhubAuthStrategy || this.options.devhubAuthStrategy === 'AUTO'
-        ? getAuthStrategy()
-        : this.options.devhubAuthStrategy;
+      this.options.devhubAuthStrategy === 'AUTO' ? getAuthStrategy() : this.options.devhubAuthStrategy ?? 'NONE';
 
     transferExistingAuthToEnv(authStrategy);