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我发现从书以下测试针对的Mockito春:正确的Mockito使用时磕碰的方法有返回值
import com.packt.trading.dto.Stock;
import static org.junit.Assert.assertNotNull;
import static org.mockito.Matchers.anyString;
import static org.mockito.Matchers.isA;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
@RunWith(MockitoJUnitRunner.class)
public class StockBrokerTest {
@Mock MarketWatcher marketWatcher;
@Mock Portfolio portfolio;
StockBroker broker;
@Before public void setUp() {
broker = new StockBroker(marketWatcher);
}
@Test
public void when_ten_percent_gain_then_the_stock_is_sold() {
//Portfolio's getAvgPrice is stubbed to return $10.00
when(portfolio.getAvgPrice(isA(Stock.class))).thenReturn(new BigDecimal("10.00"));
verify(portfolio.getAvgPrice(isA(Stock.class)))
//A stock object is created with current price $11.20
Stock aCorp = new Stock("A", "A Corp", new BigDecimal("11.20"));
//getQuote method is stubbed to return the stock
when(marketWatcher.getQuote(anyString())).thenReturn(aCorp);
//perform method is called, as the stock price increases by 12% the broker should sell the stocks
broker.perform(portfolio, aCorp);
//verifying that the broker sold the stocks
verify(portfolio).sell(aCorp,10);
}
public void perform(Portfolio portfolio,Stock stock) {
Stock liveStock = market.getQuote(stock.getSymbol());
BigDecimal avgPrice = portfolio.getAvgPrice(stock);
BigDecimal priceGained =
liveStock.getPrice().subtract(avgPrice);
BigDecimal percentGain = priceGained.divide(avgPrice);
if(percentGain.compareTo(LIMIT) > 0) {
portfolio.sell(stock, 10);
}else if(percentGain.compareTo(LIMIT) < 0){
portfolio.buy(stock);
}
}
我叫
when(portfolio.getAvgPrice(isA(Stock.class))).thenReturn(new BigDecimal("10.00"));
但没有验证使用验证声明getAvgPrice()被调用或不。 另外我在测试用例中没有进一步使用返回值。
我们是否应该仅在测试用例中对其返回值进行评估或使用的那些方法进行了存根? 我们不能写一个没有verify()或断言返回值的when()吗?虽然,在这两种情况下,我的测试成功运行。
Mockito的使用是否错误?
所以,如果我写这样的验证声明:验证(portfolio.getAvgPrice(ISA(Stock.class)))它是罚款还是需要也要声明返回值? –
完全取决于你的用例。如果通过调用另一个方法(如getAvgPrice(...))来执行'perform()'来执行任何业务逻辑,那么您可能需要'验证'该方法调用。但是我没有看到''getAvgPrice()''执行'verify'的任何用法。如果可能,提供'perform()'执行 –
验证(portfolio.getAvgPrice(isA(Stock.class)))语句和update()方法。 –