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BAEL-4469: Update Introduction to Mockito AdditionalAnswers (#12267) 

* init commit

* improve test cases
This commit is contained in:
Azhwani 2022-06-05 17:26:59 +02:00 committed by GitHub
parent 908387dbfb
commit 7f97acf361
1 changed files with 38 additions and 2 deletions
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40
testing-modules/mockito-2/src/test/java/com/baeldung/mockito/additionalanswers/BookServiceUnitTest.java
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@ -1,5 +1,15 @@
package com.baeldung.mockito.additionalanswers;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.mockito.ArgumentMatchers.anyLong;
import static org.mockito.AdditionalAnswers.answer;
import static org.mockito.AdditionalAnswers.answerVoid;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.AdditionalAnswers;
@ -7,8 +17,6 @@ import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.junit.MockitoJUnitRunner;
import static org.junit.Assert.assertEquals;
import static org.mockito.ArgumentMatchers.any;
@RunWith(MockitoJUnitRunner.class)
public class BookServiceUnitTest {
@ -65,4 +73,32 @@ public class BookServiceUnitTest {
assertEquals(bookOnIndex, book2);
}
@Test
public void givenMockedMethod_whenMethodInvoked_thenReturnBook() {
Long id = 1L;
when(bookRepository.getByBookId(anyLong())).thenAnswer(answer(BookServiceUnitTest::buildBook));
assertNotNull(bookService.getByBookId(id));
assertEquals("The Stranger", bookService.getByBookId(id).getTitle());
}
@Test
public void givenMockedMethod_whenMethodInvoked_thenReturnVoid() {
Long id = 2L;
when(bookRepository.getByBookId(anyLong())).thenAnswer(answerVoid(BookServiceUnitTest::printBookId));
bookService.getByBookId(id);
verify(bookRepository, times(1)).getByBookId(id);
}
private static Book buildBook(Long bookId) {
return new Book(bookId, "The Stranger", "Albert Camus", 456);
}
private static void printBookId(Long bookId) {
System.out.println(bookId);
}
}