@Test
public void getChannelDtoByNameShouldReturnNullChannelDtoWhenChannelNameIsNonExistent() {
// Given
given(channelRepository.findByName(CHANNEL_NAME_NON_EXISTENT)).willReturn(null);
// When
ChannelDTO channelDTO = channelService.getChannelDtoByName(CHANNEL_NAME_NON_EXISTENT);
// Then
assertThat(channelDTO, nullValue());
then(channelRepository).should().findByName(CHANNEL_NAME_NON_EXISTENT);
verifyZeroInteractions(converterService);
}
@Test
public void getChannelDtoByNameShouldReturnExistingChannelDtoWhenChannelNameIsExisting() {
// Given
given(channelRepository.findByName(CHANNEL_NAME_FACEBOOK)).willReturn(facebookEntity);
given(converterService.convert(facebookEntity, ChannelDTO.class)).willReturn(facebookDto);
// When
ChannelDTO channelDTO = channelService.getChannelDtoByName(CHANNEL_NAME_FACEBOOK);
// Then
assertThat(channelDTO, notNullValue());
assertThat(channelDTO, equalTo(facebookDto));
then(channelRepository).should().findByName(CHANNEL_NAME_FACEBOOK);
then(converterService).should().convert(facebookEntity, ChannelDTO.class);
}
@Test
public void getAllNonDeletedDtoShouldReturnThreeElementListWhenThereAreThreeChannels() {
// Given
given(channelRepository.findAllByDeletedFalse()).willReturn(expectedChannelEntityList);
given(converterService.convert(expectedChannelEntityList, ChannelDTO.class))
.willReturn(expectedChannelDTOList);
// When
Collection<ChannelDTO> result = channelService.getAllNonDeletedDto();
// Then
assertEquals(result, expectedChannelDTOList);
then(channelRepository).should().findAllByDeletedFalse();
then(converterService).should().convert(expectedChannelEntityList, ChannelDTO.class);
}
@Test
public void getAllNonDeletedDtoShouldReturnEmptyListWhenThereAreNoChannels() {
// Given
given(channelRepository.findAllByDeletedFalse()).willReturn(EMPTY_CHANNEL_ENTITY_LIST);
given(converterService.convert(EMPTY_CHANNEL_ENTITY_LIST, ChannelDTO.class))
.willReturn(EMPTY_CHANNEL_DTO_LIST);
// When
Collection<ChannelDTO> channels = channelService.getAllNonDeletedDto();
// Then
assertThat(channels, notNullValue());
assertTrue(channels.isEmpty());
then(channelRepository).should().findAllByDeletedFalse();
then(converterService).should().convert(EMPTY_CHANNEL_ENTITY_LIST, ChannelDTO.class);
}
@Test
public void getAllNonDeletedDtoShouldReturnSingleElementListWhenThereIsOneChannel() {
// Given
List<ChannelEntity> channels = Arrays.asList(facebookEntity);
List<ChannelDTO> expected = Arrays.asList(facebookDto);
given(channelRepository.findAllByDeletedFalse()).willReturn(channels);
given(converterService.convert(channels, ChannelDTO.class)).willReturn(expected);
// When
Collection<ChannelDTO> result = channelService.getAllNonDeletedDto();
// Then
assertEquals(result, expected);
then(channelRepository).should().findAllByDeletedFalse();
then(converterService).should().convert(channels, ChannelDTO.class);
}