/**
* @expectedException \Magento\Framework\Exception\LocalizedException
* @expectedExceptionMessage exception
*/
public function testGeneratePaymentMethodTokenException()
{
$cardToken = 1;
$paymentMethodObj = json_decode(json_encode(['success' => false]));
$this->braintreePaymentMethodMock->expects($this->once())->method('createNonce')->with($cardToken)->willReturn($paymentMethodObj);
$this->errorHelperMock->expects($this->once())->method('parseBraintreeError')->willReturn(new \Magento\Framework\Phrase('exception'));
$this->model->generatePaymentMethodToken($cardToken);
}
