OpenIsle/backend/src/test/java/com/openisle/service/ReactionServiceTest.java

package com.openisle.service;

import com.openisle.model.*;
import com.openisle.repository.*;
import org.junit.jupiter.api.Test;

import java.util.Optional;

import static org.mockito.Mockito.*;

class ReactionServiceTest {
    @Test
    void reactToPostSendsEmailEveryFive() {
        ReactionRepository reactionRepo = mock(ReactionRepository.class);
        UserRepository userRepo = mock(UserRepository.class);
        PostRepository postRepo = mock(PostRepository.class);
        CommentRepository commentRepo = mock(CommentRepository.class);
        MessageRepository messageRepo = mock(MessageRepository.class);
        NotificationService notif = mock(NotificationService.class);
        EmailSender email = mock(EmailSender.class);
        ReactionService service = new ReactionService(reactionRepo, userRepo, postRepo, commentRepo, messageRepo, notif, email);
        org.springframework.test.util.ReflectionTestUtils.setField(service, "websiteUrl", "https://ex.com");

        User user = new User();
        user.setId(1L);
        user.setUsername("bob");
        User author = new User();
        author.setId(2L);
        author.setEmail("a@a.com");
        Post post = new Post();
        post.setId(3L);
        post.setAuthor(author);

        when(userRepo.findByUsername("bob")).thenReturn(Optional.of(user));
        when(postRepo.findById(3L)).thenReturn(Optional.of(post));
        when(reactionRepo.findByUserAndPostAndType(user, post, ReactionType.LIKE)).thenReturn(Optional.empty());
        when(reactionRepo.save(any(Reaction.class))).thenAnswer(i -> i.getArgument(0));
        when(reactionRepo.countReceived(author.getUsername())).thenReturn(5L);

        service.reactToPost("bob", 3L, ReactionType.LIKE);

        verify(email).sendEmail("a@a.com", "你有新的互动", "https://ex.com/messages");
        verify(notif).sendCustomPush(author, "你有新的互动", "https://ex.com/messages");
    }
}