Junit

Enclosed, Theories

@RunWith( Enclosed.class )
public class TestHogeDto {

    @RunWith( Theories.class )
    public static class TestConstructor {

        @Builder
        static class TestData {
            private final String hoge;
        }

        @Builder
        static class Fixture {
            private final TestData testData;
            private final String fuga;
            private final String hogehoge;
        }

        @DataPoints
        public static Fixture[] getFixture() {
            return new Fixture[] {
                    Fixture.builder()
                            .testData( TestData.builder()
                                    .hoge( "hoge" )
                                    .build() )
                            .fuga( "fuga" )
                            .hogehoge( "hogehoge" )
                            .build(),
                    // ■ 接道状況が""
                    Fixture.builder()
                            .testData( TestData.builder()
                                    .hoge( "" )
                                    .build() )
                            .fuga( "" )
                            .hogehoge( "" )
                            .build(),
            };
        }

        @Theory
        public void create_hogeDto( Fixture fixture ) {

            HogeDto result = new HogeDto( fixture.testData.hoge );

            assertEquals( fixture.fuga, result.getFuga() );
            assertEquals( fixture.hogehoge, result.getHogehoge() );
        }
    }
}

enclosedで共通の使いたい場合

staticだからクラス外にアクセスできないので継承を利用する

    /**
     * Abstract common settings class.
     */
    abstract public static class CommonSetting {

        static final String SESSION_ID = "session_id";
        static final String TRIAL_APP_ID = "tal-1";

        @Mock
        public AuthClient authClient;
        @InjectMocks
        public HogeService service;

        @Before
        public void setUp() {
            MockitoAnnotations.initMocks( this );
        }
    }

@AutoConfigureTestDatabase

実際のDBでテストしたい時に使用する

PowerMock

• whenNewのバグ
  withAnyArgumentsを使ってwhenNewをする時に、コンストラクタの引数にnull値が来ると挙動がおかしくなる

mockstatic

            try ( MockedStatic<DigestUtils> mockedDigestUtils = mockStatic( DigestUtils.class );
                    MockedStatic<DateUtils> mockedDateUtils = mockStatic( DateUtils.class ) ) {
                mockedDigestUtils.when( DigestUtils::createHashId ).thenReturn( "ta1" );
                mockedDateUtils.when( DateUtils::now ).thenReturn(
                        ZonedDateTime.of( LocalDateTime.of( 2022, 1, 1, 0, 0, 0 ), DateUtils.DEFAULT_ZONE_ID ) );