feat: add search module

src/test/java/com/openisle/controller/SearchControllerTest.java

@@ -0,0 +1,66 @@
+package com.openisle.controller;
+
+import com.openisle.model.Comment;
+import com.openisle.model.Post;
+import com.openisle.model.User;
+import com.openisle.model.PostStatus;
+import com.openisle.service.SearchService;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.List;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+@WebMvcTest(SearchController.class)
+@AutoConfigureMockMvc(addFilters = false)
+class SearchControllerTest {
+    @Autowired
+    private MockMvc mockMvc;
+
+    @MockBean
+    private SearchService searchService;
+
+    @Test
+    void userSearchEndpoint() throws Exception {
+        User user = new User();
+        user.setId(1L);
+        user.setUsername("alice");
+        Mockito.when(searchService.searchUsers("ali")).thenReturn(List.of(user));
+
+        mockMvc.perform(get("/api/search/users").param("keyword", "ali"))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$[0].username").value("alice"));
+    }
+
+    @Test
+    void globalSearchAggregatesTypes() throws Exception {
+        User u = new User();
+        u.setId(1L);
+        u.setUsername("bob");
+        Post p = new Post();
+        p.setId(2L);
+        p.setTitle("hello");
+        p.setStatus(PostStatus.PUBLISHED);
+        Comment c = new Comment();
+        c.setId(3L);
+        c.setContent("nice");
+        Mockito.when(searchService.globalSearch("n")).thenReturn(List.of(
+                new SearchService.SearchResult("user", 1L, "bob"),
+                new SearchService.SearchResult("post", 2L, "hello"),
+                new SearchService.SearchResult("comment", 3L, "nice")
+        ));
+
+        mockMvc.perform(get("/api/search/global").param("keyword", "n"))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$[0].type").value("user"))
+                .andExpect(jsonPath("$[1].type").value("post"))
+                .andExpect(jsonPath("$[2].type").value("comment"));
+    }
+}

src/test/java/com/openisle/integration/SearchIntegrationTest.java

@@ -0,0 +1,77 @@
+package com.openisle.integration;
+
+import com.openisle.model.Role;
+import com.openisle.model.User;
+import com.openisle.repository.UserRepository;
+import com.openisle.service.EmailSender;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.http.*;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+class SearchIntegrationTest {
+    @Autowired
+    private TestRestTemplate rest;
+    @Autowired
+    private UserRepository users;
+    @MockBean
+    private EmailSender emailService;
+
+    private String registerAndLogin(String username, String email) {
+        HttpHeaders h = new HttpHeaders();
+        h.setContentType(MediaType.APPLICATION_JSON);
+        rest.postForEntity("/api/auth/register", new HttpEntity<>(
+                Map.of("username", username, "email", email, "password", "pass123"), h), Map.class);
+        User u = users.findByUsername(username).orElseThrow();
+        rest.postForEntity("/api/auth/verify", new HttpEntity<>(
+                Map.of("username", username, "code", u.getVerificationCode()), h), Map.class);
+        ResponseEntity<Map> resp = rest.postForEntity("/api/auth/login", new HttpEntity<>(
+                Map.of("username", username, "password", "pass123"), h), Map.class);
+        return (String) resp.getBody().get("token");
+    }
+
+    private String registerAndLoginAsAdmin(String username, String email) {
+        String token = registerAndLogin(username, email);
+        User u = users.findByUsername(username).orElseThrow();
+        u.setRole(Role.ADMIN);
+        users.save(u);
+        return token;
+    }
+
+    private ResponseEntity<Map> postJson(String url, Map<?,?> body, String token) {
+        HttpHeaders h = new HttpHeaders();
+        h.setContentType(MediaType.APPLICATION_JSON);
+        if (token != null) h.setBearerAuth(token);
+        return rest.exchange(url, HttpMethod.POST, new HttpEntity<>(body, h), Map.class);
+    }
+
+    @Test
+    void globalSearchReturnsMixedResults() {
+        String admin = registerAndLoginAsAdmin("admin", "a@a.com");
+        String user = registerAndLogin("bob", "b@b.com");
+
+        ResponseEntity<Map> catResp = postJson("/api/categories", Map.of("name", "misc"), admin);
+        Long catId = ((Number)catResp.getBody().get("id")).longValue();
+
+        ResponseEntity<Map> postResp = postJson("/api/posts",
+                Map.of("title", "Hello World", "content", "Some content", "categoryId", catId), user);
+        Long postId = ((Number)postResp.getBody().get("id")).longValue();
+
+        postJson("/api/posts/" + postId + "/comments",
+                Map.of("content", "Nice article"), admin);
+
+        List<Map<String, Object>> results = rest.getForObject("/api/search/global?keyword=nic", List.class);
+        assertEquals(3, results.size());
+        assertTrue(results.stream().anyMatch(m -> "user".equals(m.get("type"))));
+        assertTrue(results.stream().anyMatch(m -> "post".equals(m.get("type"))));
+        assertTrue(results.stream().anyMatch(m -> "comment".equals(m.get("type"))));
+    }
+}