Test login with incorrect signature

tests/ServerTest.php

@@ -556,16 +556,15 @@ public function testAuthenticateThrowsIfNoRequestMatchesKeyHandle(): void
 
  public function testValidateLoginThrowsIfSignatureIsInvalid(): void
  {
+ $challenge = $this->getDefaultLoginChallenge();
+ $response = $this->getDefaultLoginResponse([
+ 'getSignature' => 'some-other-signature',
+ ]);
  $registration = $this->getDefaultRegistration();
- $request = $this->getDefaultSignRequest();
- // Trimming a byte off the signature to cause a mismatch
- $data = $this->readJsonFile('sign_response.json');
- $data['signatureData'] = substr($data['signatureData'], 0, -1);
- $response = SignResponse::fromJson($this->safeEncode($data));
 
  $this->expectException(SecurityException::class);
  $this->expectExceptionCode(SecurityException::SIGNATURE_INVALID);
- $this->server->validateLogin($request, $response, [$registration]);
+ $this->server->validateLogin($challenge, $response, [$registration]);
  }
 
  /**