diff --git a/src/test/java/com/openisle/integration/ComplexFlowIntegrationTest.java b/src/test/java/com/openisle/integration/ComplexFlowIntegrationTest.java
index e5bc14369..b0888dd3b 100644
--- a/src/test/java/com/openisle/integration/ComplexFlowIntegrationTest.java
+++ b/src/test/java/com/openisle/integration/ComplexFlowIntegrationTest.java
@@ -1,9 +1,8 @@
 package com.openisle.integration;
 
 import com.openisle.model.User;
-import com.openisle.model.Category;
+import com.openisle.model.Role;
 import com.openisle.repository.UserRepository;
-import com.openisle.repository.CategoryRepository;
 import com.openisle.service.EmailService;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -26,9 +25,6 @@ class ComplexFlowIntegrationTest {
     @Autowired
     private UserRepository users;
 
-    @Autowired
-    private CategoryRepository categories;
-
     @MockBean
     private EmailService emailService;
 
@@ -45,6 +41,14 @@ class ComplexFlowIntegrationTest {
         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);
@@ -57,12 +61,13 @@ class ComplexFlowIntegrationTest {
         String t1 = registerAndLogin("alice", "a@example.com");
         String t2 = registerAndLogin("bob", "b@example.com");
 
-        Category cat = new Category();
-        cat.setName("general");
-        cat = categories.save(cat);
+        String adminToken = registerAndLoginAsAdmin("admin", "admin@example.com");
+        ResponseEntity<Map> catResp = postJson("/api/categories",
+                Map.of("name", "general"), adminToken);
+        Long catId = ((Number)catResp.getBody().get("id")).longValue();
 
         ResponseEntity<Map> postResp = postJson("/api/posts",
-                Map.of("title", "Hello", "content", "World", "categoryId", cat.getId()), t1);
+                Map.of("title", "Hello", "content", "World", "categoryId", catId), t1);
         Long postId = ((Number)postResp.getBody().get("id")).longValue();
 
         ResponseEntity<Map> c1Resp = postJson("/api/posts/" + postId + "/comments",
@@ -96,12 +101,13 @@ class ComplexFlowIntegrationTest {
         String t1 = registerAndLogin("carol", "c@example.com");
         String t2 = registerAndLogin("dave", "d@example.com");
 
-        Category cat = new Category();
-        cat.setName("general");
-        cat = categories.save(cat);
+        String adminToken = registerAndLoginAsAdmin("admin2", "admin2@example.com");
+        ResponseEntity<Map> catResp = postJson("/api/categories",
+                Map.of("name", "general"), adminToken);
+        Long catId = ((Number)catResp.getBody().get("id")).longValue();
 
         ResponseEntity<Map> postResp = postJson("/api/posts",
-                Map.of("title", "React", "content", "Test", "categoryId", cat.getId()), t1);
+                Map.of("title", "React", "content", "Test", "categoryId", catId), t1);
         Long postId = ((Number)postResp.getBody().get("id")).longValue();
 
         postJson("/api/posts/" + postId + "/reactions",