/**
  * {@inheritdoc}
  */
 public function delete(\Magento\Customer\Api\Data\CustomerInterface $customer)
 {
     $pluginInfo = $this->pluginList->getNext($this->subjectType, 'delete');
     if (!$pluginInfo) {
         return parent::delete($customer);
     } else {
         return $this->___callPlugins('delete', func_get_args(), $pluginInfo);
     }
 }
 public function testDelete()
 {
     $customerId = 14;
     $customerModel = $this->getMock('Magento\\Customer\\Model\\Customer', ['delete'], [], '', false);
     $this->customer->expects($this->once())->method('getId')->willReturn($customerId);
     $this->customerRegistry->expects($this->once())->method('retrieve')->with($customerId)->willReturn($customerModel);
     $customerModel->expects($this->once())->method('delete');
     $this->customerRegistry->expects($this->once())->method('remove')->with($customerId);
     $this->assertTrue($this->model->delete($this->customer));
 }