diff --git a/src/test/java/com/sublinks/sublinksapi/search/services/SearchServiceTests.java b/src/test/java/com/sublinks/sublinksapi/search/services/SearchServiceTests.java
new file mode 100644
index 000000000..c2ccacd75
--- /dev/null
+++ b/src/test/java/com/sublinks/sublinksapi/search/services/SearchServiceTests.java
@@ -0,0 +1,169 @@
+package com.sublinks.sublinksapi.search.services;
+
+import com.sublinks.sublinksapi.comment.entities.Comment;
+import com.sublinks.sublinksapi.community.entities.Community;
+import com.sublinks.sublinksapi.person.entities.Person;
+import com.sublinks.sublinksapi.post.entities.CrossPost;
+import com.sublinks.sublinksapi.post.entities.Post;
+import com.sublinks.sublinksapi.post.repositories.CrossPostRepository;
+import com.sublinks.sublinksapi.post.services.PostService;
+import com.sublinks.sublinksapi.search.repositories.CommentSearchRepository;
+import com.sublinks.sublinksapi.search.repositories.CommunitySearchRepository;
+import com.sublinks.sublinksapi.search.repositories.PersonSearchRepository;
+import com.sublinks.sublinksapi.search.repositories.PostSearchRepository;
+import com.sublinks.sublinksapi.utils.UrlUtil;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageImpl;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.when;
+
+public class SearchServiceTests {
+  @Mock
+  private  PostSearchRepository postSearchRepository;
+
+  @Mock
+  private  CommentSearchRepository commentSearchRepository;
+
+  @Mock
+  private  CommunitySearchRepository communitySearchRepository;
+
+  @Mock
+  private  PersonSearchRepository personSearchRepository;
+
+  @Mock
+  private  PostService postService;
+
+  @Mock
+  private  CrossPostRepository crossPostRepository;
+
+  @Mock
+  private  UrlUtil urlUtil;
+
+  @InjectMocks
+  private SearchService searchService;
+
+  @BeforeEach
+  public void setup(){
+    MockitoAnnotations.openMocks(this);
+  }
+
+  @Test
+  public void testSearchCommunity(){
+    String query = "test";
+    int page = 0;
+    int pageSize = 10;
+    Sort sort = Sort.by("id");
+
+    Page<Community> expectedPage = new PageImpl<>(
+        Collections.emptyList(), PageRequest.of(page, pageSize, sort), 0);
+    when(communitySearchRepository.searchAllByKeyword(query, PageRequest.of(page, pageSize, sort)))
+        .thenReturn(expectedPage);
+
+    Page<Community> result = searchService.searchCommunity(query, page, pageSize, sort);
+    assertEquals(expectedPage, result);
+  }
+  @Test
+  public void testSearchPost() {
+    String query = "test";
+    int page = 0;
+    int pageSize = 10;
+    Sort sort = Sort.by("id");
+
+    Page<Post> expectedPage = new PageImpl<>(Collections.emptyList(), PageRequest.of(page, pageSize, sort), 0);
+    when(postSearchRepository.searchAllByKeyword(query, PageRequest.of(page, pageSize, sort)))
+        .thenReturn(expectedPage);
+
+    Page<Post> result = searchService.searchPost(query, page, pageSize, sort);
+    assertEquals(expectedPage, result);
+  }
+
+  @Test
+  public void testSearchComments() {
+    String query = "test";
+    int page = 0;
+    int pageSize = 10;
+    Sort sort = Sort.by("id");
+
+    Page<Comment> expectedPage = new PageImpl<>(Collections.emptyList(), PageRequest.of(page, pageSize, sort), 0);
+    when(commentSearchRepository.searchAllByKeyword(query, PageRequest.of(page, pageSize, sort)))
+        .thenReturn(expectedPage);
+
+    Page<Comment> result = searchService.searchComments(query, page, pageSize, sort);
+    assertEquals(expectedPage, result);
+  }
+
+  @Test
+  public void testSearchPostByUrlReturnsEmptyWhenNoCrossPostsFound() {
+    String url = "http://example.com";
+    int page = 0;
+    int pageSize = 2;
+    Sort sort = Sort.by("id");
+    String cleanUrl = "http://example.com/clean";
+    String hash = "hashed-url";
+
+    when(urlUtil.normalizeUrl(url)).thenReturn(cleanUrl);
+    when(postService.getStringMd5Hash(cleanUrl)).thenReturn(hash);
+    when(crossPostRepository.getCrossPostByMd5Hash(hash)).thenReturn(Optional.empty());
+
+    Page<Post> expectedPage = Page.empty();
+    Page<Post> result = searchService.searchPostByUrl(url, page, pageSize, sort);
+
+    assertEquals(expectedPage, result);
+  }
+
+  @Test
+  public void testSearchPostByUrlWithCrossPostsReturnsResults() {
+    String url = "http://example.com";
+    int page = 0;
+    int pageSize = 2;
+    Sort sort = Sort.by("id");
+    String cleanUrl = "http://example.com/clean";
+    String hash = "hashed-url";
+
+    Post post1 = new Post();
+    Post post2 = new Post();
+    Set<Post> posts = Set.of(post1,post2);
+    CrossPost crossPost = new CrossPost();
+    crossPost.setPosts(posts);
+
+    when(urlUtil.normalizeUrl(url)).thenReturn(cleanUrl);
+    when(postService.getStringMd5Hash(cleanUrl)).thenReturn(hash);
+    when(crossPostRepository.getCrossPostByMd5Hash(hash)).thenReturn(Optional.of(crossPost));
+
+    List<Post> postList = crossPost.getPosts().stream().toList();
+    Page<Post> expectedPage = new PageImpl<>(postList.subList(page * pageSize, (page + 1) * pageSize),
+        PageRequest.of(page, pageSize, sort),posts.size());
+
+    Page<Post> result = searchService.searchPostByUrl(url, page, pageSize, sort);
+
+    assertEquals(expectedPage, result);
+  }
+
+  @Test
+  public void testSearchPerson() {
+    String query = "test";
+    int page = 0;
+    int pageSize = 10;
+    Sort sort = Sort.by("id");
+
+    Page<Person> expectedPage = new PageImpl<>(Collections.emptyList(), PageRequest.of(page, pageSize, sort), 0);
+    when(personSearchRepository.searchAllByKeyword(query, PageRequest.of(page, pageSize, sort)))
+        .thenReturn(expectedPage);
+
+    Page<Person> result = searchService.searchPerson(query, page, pageSize, sort);
+    assertEquals(expectedPage, result);
+  }
+
+}