How to use inferWantedArgumentPosition method of org.mockito.internal.stubbing.answers.AnswersWithDelay class

Best Mockito code snippet using org.mockito.internal.stubbing.answers.AnswersWithDelay.inferWantedArgumentPosition

inferWantedArgumentPosition

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1package org.mockito.internal.stubbing.answers;2import java.lang.reflect.Method;3import java.util.concurrent.TimeUnit;4public class AnswersWithDelay {5 public static Object delay(long delay, TimeUnit unit, Method method, Object... args) throws Throwable {6 Thread.sleep(unit.toMillis(delay));7 return inferWantedArgumentPosition(method, args);8 }9 private static Object inferWantedArgumentPosition(Method method, Object... args) throws Throwable {10 Class<?>[] parameterTypes = method.getParameterTypes();11 int wantedArgumentPosition = -1;12 for (int i = 0; i < parameterTypes.length; i++) {13 Class<?> parameterType = parameterTypes[i];14 if (parameterType.isPrimitive()) {15 continue;16 }17 if (wantedArgumentPosition != -1) {18 return null;19 }20 wantedArgumentPosition = i;21 }22 if (wantedArgumentPosition == -1) {23 return null;24 }25 return args[wantedArgumentPosition];26 }27}28public class MockitoTest {29 public void testDelay() throws Throwable {30 Object result = AnswersWithDelay.delay(500, TimeUnit.MILLISECONDS, MockitoTest.class.getMethod("testDelay", String.class), "test");31 System.out.println("result = " + result);32 }33}

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inferWantedArgumentPosition

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1public class MockitoTest {2 public static void main(String[] args) {3 List list = mock(List.class);4 doAnswer(new AnswersWithDelay(1000, new Returns(10))).when(list).get(anyInt());5 System.out.println(list.get(1));6 }7}

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