我正在使用 Mokito 進行測試，并且有以下場景。我正在嘗試測試這段代碼public CartResponse processDeleteCartEntry(UUID cartId, Integer rowKey, JsonMessages messages) throws UnexpectedException { Cart cart = cartService.getById(cartId); CartResponse cartResponse = null; if (cart != null) { cartService.removeItem(cart, rowKey, messages); cartResponse = buildCartResponse(cart); } return cartResponse;}cartService.removeItem(cart, rowKey, messages);不返回任何內容（無效），這是我的測試用例@Testpublic void testRemoveCartItem() throws UnexpectedException { Cart cart = getCart(); //given given(cartService.getById(cart.getId())).willReturn(cart); //When CartResponse cartResponse = mobileAppCartHandler.processDeleteCartEntry(cart.getId(), 0, new JsonMessages()); //Then assertNotNull(cartResponse); assertEquals(ResponseStatus.OK, cartResponse.getStatus()); assertEquals(1, cartResponse.getEntries().size());}我不想進行實際調用來刪除項目，但同時它應該刪除該項目，以便我可以斷言它。我的購物車有 2 件商品，移除后應該是一件。我應該使用when條件嗎？
2 回答
蝴蝶不菲
TA貢獻1810條經驗 獲得超4個贊
對于 void 方法，您需要首先存根操作。
Mockito.doAnswer(invocation -> {
// grab args and remove from cart
})
.when(cartService) // mocked cartService
.removeItem(cart, rowKey, messages); // You can use argumentMatchers here
慕慕森
TA貢獻1856條經驗 獲得超17個贊
對于 void 函數使用doAnswer
@Test
public void testRemoveCartItem() throws UnexpectedException {
Cart cart = getCart();
int rowKey = 0;
JsonMessages messages = new JsonMessages()();
//given
given(cartService.getById(cart.getId())).willReturn(cart);
doAnswer(new Answer<Void>() {
@Override
public void answer(InvocationOnMock invocation) throws Throwable {
//get the arguments passed to mock
Object[] args = invocation.getArguments();
//get the mock
Object mock = invocation.getMock();
Cart c = (Cart)args[0];
int row = (int)(Integer)args[1];
c.removeItem(row); //Just an assumption here
//return
return null;
}
})
.when(cartService).removeItem(cart, rowKey, messages);
//When
CartResponse cartResponse = mobileAppCartHandler.processDeleteCartEntry(cart.getId(), rowKey, messages);
//Then
assertNotNull(cartResponse);
assertEquals(ResponseStatus.OK, cartResponse.getStatus());
assertEquals(1, cartResponse.getEntries().size());
}
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