content: // Licensed to the Apache Software Foundation (ASF) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The ASF licenses this file
  // to you under the Apache License, Version 2.0 (the
  // "License"); you may not use this file except in compliance
  // with the License.  You may obtain a copy of the License at
  //
  //   http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing,
  // software distributed under the License is distributed on an
  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  // KIND, either express or implied.  See the License for the
  // specific language governing permissions and limitations
  // under the License.
  
  package com.cloud.hypervisor.kvm.resource.wrapper;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.UUID;
  
  import org.junit.Assert;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.mockito.Mock;
  import org.mockito.Mockito;
  import org.mockito.Spy;
  import org.mockito.junit.MockitoJUnitRunner;
  
  import com.cloud.agent.api.PrepareForMigrationAnswer;
  import com.cloud.agent.api.PrepareForMigrationCommand;
  import com.cloud.agent.api.to.DpdkTO;
  import com.cloud.agent.api.to.VirtualMachineTO;
  import com.cloud.hypervisor.kvm.resource.LibvirtComputingResource;
  import com.cloud.utils.exception.CloudRuntimeException;
  
  @RunWith(MockitoJUnitRunner.class)
  public class LibvirtPrepareForMigrationCommandWrapperTest {
  
      @Mock
      LibvirtComputingResource libvirtComputingResourceMock;
  
      @Mock
      PrepareForMigrationCommand prepareForMigrationCommandMock;
  
      @Mock
      VirtualMachineTO virtualMachineTOMock;
  
      @Spy
      LibvirtPrepareForMigrationCommandWrapper libvirtPrepareForMigrationCommandWrapperSpy = new LibvirtPrepareForMigrationCommandWrapper();
  
      @Test
      public void createPrepareForMigrationAnswerTestDpdkInterfaceNotEmptyShouldSetParamOnAnswer() {
          Map<String, DpdkTO> dpdkInterfaceMapping = new HashMap<>();
          dpdkInterfaceMapping.put("Interface", new DpdkTO());
  
          PrepareForMigrationAnswer prepareForMigrationAnswer = libvirtPrepareForMigrationCommandWrapperSpy.createPrepareForMigrationAnswer(prepareForMigrationCommandMock, dpdkInterfaceMapping, libvirtComputingResourceMock,
                  virtualMachineTOMock);
  
          Assert.assertEquals(prepareForMigrationAnswer.getDpdkInterfaceMapping(), dpdkInterfaceMapping);
      }
  
      @Test
      public void createPrepareForMigrationAnswerTestVerifyThatCpuSharesIsSet() {
          int cpuShares = 1000;
          Mockito.doReturn(cpuShares).when(libvirtComputingResourceMock).calculateCpuShares(virtualMachineTOMock);
          PrepareForMigrationAnswer prepareForMigrationAnswer = libvirtPrepareForMigrationCommandWrapperSpy.createPrepareForMigrationAnswer(prepareForMigrationCommandMock,null,
                  libvirtComputingResourceMock, virtualMachineTOMock);
  
          Assert.assertEquals(cpuShares, prepareForMigrationAnswer.getNewVmCpuShares().intValue());
      }
  
      private String getTempFilepath() {
          return String.format("%s/%s.txt", System.getProperty("java.io.tmpdir"), UUID.randomUUID());
      }
  
      private void runTestRemoveDpdkPortForCommandInjection(String portWithCommand) {
          try {
              libvirtPrepareForMigrationCommandWrapperSpy.removeDpdkPort(portWithCommand);
              Assert.fail(String.format("Command injection working for portWithCommand: %s", portWithCommand));
          } catch (CloudRuntimeException ignored) {}
      }
  
      @Test
      public void testRemoveDpdkPortForCommandInjection() {
          List<String> commandVariants = List.of(
                  "';touch %s'",
                  ";touch %s",
                  "&& touch %s",
                  "|| touch %s",
                  UUID.randomUUID().toString());
          for (String cmd : commandVariants) {
              String portWithCommand = String.format(cmd, getTempFilepath());
              runTestRemoveDpdkPortForCommandInjection(portWithCommand);
          }
      }
  }
  