Lcobucci\JWT\Signer\EcdsaTest::getSigner PHP Method

    private function getSigner() : Ecdsa
    {
        $signer = $this->getMockForAbstractClass(Ecdsa::class, [$this->adapter, $this->keyParser]);
        $signer->method('getAlgorithm')->willReturn('sha256');
        $signer->method('getAlgorithmId')->willReturn('ES256');
        return $signer;
    }