@Test
public void handleMethodAnnotationShouldMergePlaceholdersAndFillProducesWithFirstAnnotationValue() throws Exception {

    when(mockAnnotation.value()).thenReturn(new String[]{VAL_WITH_PH + "a", VAL_WITH_PH + "b"});
    when(mockMethodConfigBuilder.setProduces(EXPECTED_MERGE_VAL + "a")).thenReturn(mockMethodConfigBuilder);
    toTest.handleMethodAnnotation(mockAnnotation, mockMethodConfigBuilder);
    verify(mockAnnotation, times(2)).value();
    verify(mockMethodConfigBuilder).setProduces(EXPECTED_MERGE_VAL + "a");
}