DealPresenterTestV1 - TP article

DealPresenterTestV1.java

public class DealPresenterTest {
  private DealUtil dealUtil;
  private DealApiClient dealApiClient;
  private WishlistManager wishlistManager;
  private DealViewStateModel dealViewStateModel = new DealViewStateModel();
  private DealPresenter dealPresenterUnderTest;
  
  @Before
  public void setUp() {
    dealUtil = mock(DealUtil.class);
    dealApiClient = mock(DealApiClient.class);
    wishlistManager = mock(WishlistManager.class);
    dealPresenterUnderTest = new DealPresenter(dealUtil, dealApiClient, wishlistManager, dealViewStateModel);
    ...
  }
  ...
  @Test 
  public void onWishlistSelected_when_wishlistEnabled() throws Exception {
    //GIVEN
    Deal deal = new Deal();
    deal.id = "12345";
    dealPresenterUnderTest.deal = deal;
    when(dealUtil.isWishlistEnabled(deal)).thenReturn(true);
    //WHEN
    dealPresenterUnderTest.onWishlistSelected();
    //THEN
    verify(wishlistManager).addDealToWishlist(deal.id);
  } 
  ...
}