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Last active August 19, 2021 19:20
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Exemplo de Mocks - usando Mockito
public class Book {
private String titulo;
public Book(String titulo) {
this.titulo = titulo;
public String getTitulo() {
return titulo;
import org.json.JSONObject;
public class BookSearch {
BookService rbs;
public BookSearch(BookService rbs) {
this.rbs = rbs;
public Book getBook(int isbn) {
String json =;
JSONObject obj = new JSONObject(json);
String titulo = (String) obj.get("titulo");
return new Book(titulo);
import static org.junit.Assert.*;
import org.junit.*;
import org.mockito.Mockito;
import static org.mockito.Mockito.when;
import static org.mockito.Matchers.anyInt;
class BookConst {
public static final String ESM = "{ \"titulo\": \"Eng Soft Moderna\" }";
public static final String NULLBOOK = "NULL";
public class BookSearchTest {
BookService service;
public void init() {
service = Mockito.mock(BookService.class);
public void testGetBook() {
BookSearch bs = new BookSearch(service);
String titulo = bs.getBook(1234).getTitulo();
assertEquals("Eng Soft Moderna", titulo);
public interface BookService {
String search(int isbn);
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