### Question:
AwsRDSPlatform extends Platform { public void setVpcSecurityGroupIds (String dbInstanceIdentifier, String vpcSecurityGroupId) { setVpcSecurityGroupIds(dbInstanceIdentifier, Collections.singleton(vpcSecurityGroupId)); } @Autowired  AwsRDSPlatform();   AwsRDSPlatform(AmazonRDS amazonRDS, AmazonEC2 amazonEC2); Map<String, String> getVpcToSecurityGroupMap(); @Override ApiStatus getApiStatus(); @Override PlatformLevel getPlatformLevel(); @Override PlatformHealth getPlatformHealth(); @Override List<Container> generateExperimentRoster(); @Override boolean isContainerRecycled(Container container); Map<String, String> getFilter(); void setFilter(Map<String, String> filter); void failoverCluster(String dbClusterIdentifier); void restartInstance(String... dbInstanceIdentifiers); Set<String> getClusterInstances(String dbClusterIdentifier); ContainerHealth getInstanceStatus(String... dbInstanceIdentifiers); void setVpcSecurityGroupIds(String dbInstanceIdentifier, String vpcSecurityGroupId); void setVpcSecurityGroupIds(String dbInstanceIdentifier, Collection<String> vpcSecurityGroupIds); ContainerHealth checkVpcSecurityGroupIds(String dbInstanceIdentifier, Collection<String> vpcSecurityGroupIds); Collection<String> getVpcSecurityGroupIds(String dbInstanceIdentifier); String getChaosSecurityGroup(String dbInstanceIdentifier); DBSnapshot snapshotDBInstance(String dbInstanceIdentifier); DBClusterSnapshot snapshotDBCluster(String dbClusterIdentifier); void deleteInstanceSnapshot(DBSnapshot dbSnapshot); void deleteClusterSnapshot(DBClusterSnapshot dbClusterSnapshot); boolean isInstanceSnapshotRunning(String dbInstanceIdentifier); boolean isClusterSnapshotRunning(String dbClusterIdentifier);  }### Answer:
@Test public void setVpcSecurityGroupIds () { String dbInstanceIdentifier = randomUUID().toString(); String vpcSecurityGroupId = randomUUID().toString(); awsRDSPlatform.setVpcSecurityGroupIds(dbInstanceIdentifier, vpcSecurityGroupId); verify(amazonRDS, times(1)).modifyDBInstance(new ModifyDBInstanceRequest(dbInstanceIdentifier).withVpcSecurityGroupIds(Collections .singleton(vpcSecurityGroupId))); }
@Test public void setVpcSecurityGroupIds1 () { String dbInstanceIdentifier = randomUUID().toString(); Collection<String> vpcSecurityGroupIds = new HashSet<>(); for (int x = 0; x < 100; x++) { vpcSecurityGroupIds.add(randomUUID().toString()); } awsRDSPlatform.setVpcSecurityGroupIds(dbInstanceIdentifier, vpcSecurityGroupIds); verify(amazonRDS, times(1)).modifyDBInstance(new ModifyDBInstanceRequest(dbInstanceIdentifier).withVpcSecurityGroupIds(vpcSecurityGroupIds)); }