aswi2022code-of-duty-gitlab/backend/src/test/java/cz/zcu/kiv/backendapi/titlepage/TitlePageServiceImplementationTest.java @ bf502b70

package cz.zcu.kiv.backendapi.titlepage;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import java.util.Optional;

import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;

@ExtendWith(MockitoExtension.class)
class TitlePageServiceImplementationTest {

    @Mock
    private TitlePageRepository titlePageRepository;

    private TitlePageServiceImplementation underTest;

    @BeforeEach
    void setUp() {
        underTest = new TitlePageServiceImplementation(titlePageRepository);
    }

    @Test
    void testAddTitlePage() {
        // given
        long id = 1;
        TitlePage titlePage = new TitlePage();
        titlePage.setContent("content");

        // when
        underTest.updateTitlePage(titlePage);

        // then
        ArgumentCaptor<TitlePage> argumentCaptor = ArgumentCaptor.forClass(TitlePage.class);

        verify(titlePageRepository).save(argumentCaptor.capture());

        TitlePage capturedTitlePage = argumentCaptor.getValue();

        assertThat(capturedTitlePage.getId()).isEqualTo(id);

        assertThat(capturedTitlePage).isEqualTo(titlePage);

    }

    @Test
    void testGetTitlePageWhenExists() {
        // given
        long id = 1;
        TitlePage titlePage = new TitlePage(id, "content");

        given(titlePageRepository.findById(id)).willReturn(Optional.of(titlePage));

        // when
        TitlePage result = underTest.getTitlePage();

        // then
        verify(titlePageRepository).findById(id);
        verify(titlePageRepository, never()).save(any());

        assertThat(result).isEqualTo(titlePage);

    }

    @Test
    void testGetTitlePageWhenNotExists() {
        // given
        long id = 1;
        TitlePage titlePage = new TitlePage(id, "");

        given(titlePageRepository.findById(id)).willReturn(Optional.empty());

        // when
        underTest.getTitlePage();

        // then
        verify(titlePageRepository).findById(id);

        ArgumentCaptor<TitlePage> argumentCaptor = ArgumentCaptor.forClass(TitlePage.class);

        verify(titlePageRepository).save(argumentCaptor.capture());

        TitlePage capturedTitlePage = argumentCaptor.getValue();

        assertThat(capturedTitlePage).isEqualTo(titlePage);

    }
}