ohade

ohade

public class EntranceChecker {
    private final Set<String> names;
    public EntranceChecker(Set<String> names) {
        this.names = names;
    }

    public boolean isInTheGuestList(Person person) {
        if(person == null) {
            return true;
        }

ohade

public class EntranceChecker {
    private final Set<String> names;
    public EntranceChecker(Set<String> names) {
        this.names = names;
    }

    boolean isInTheGuestList(Person person) {
        if(person == null) {
            return true;
        }

ohade

@RunWith(MockitoJUnitRunner.class)
public class BouncerTest {
    @Mock
    private EntranceChecker entranceChecker;

    private Bouncer bouncer;
    
    @Mock
    Person inListPerson;
    

ohade

@RunWith(MockitoJUnitRunner.class)
public class BouncerTest {
    @Mock
    private EntranceChecker mockEntranceChecker;
    
    @Mock
    private Person mockInListPerson;
    
    @Mock
    private Person mockNotInListPerson;

ohade

public class Bouncer {
    private final EntranceChecker entranceChecker;

    public Bouncer(EntranceChecker entranceChecker) {
        this.entranceChecker = entranceChecker;
    }

    public boolean shouldBlock(Person person) {
        return !entranceChecker.isInTheGuestList(person);
    }