diff --git a/src/api/__tests__/complain.test.js b/src/api/__tests__/complain.test.js
new file mode 100644
index 0000000..94a06c6
--- /dev/null
+++ b/src/api/__tests__/complain.test.js
@@ -0,0 +1,96 @@
+const axios = require('axios');
+jest.mock('axios');
+
+const {
+    createComplain,
+    deleteComplain,
+    updateComplain,
+    getComplainsByTargetUser,
+    getComplainsByPostingUser,
+    getAllComplains,
+    getComplainDetailById
+} = require('../complain');
+
+describe('Complain API Tests', () => {
+    beforeEach(() => {
+        jest.clearAllMocks();
+    });
+
+    test('createComplain should post complain data', async () => {
+        const mockData = { data: { complainid: 1 } };
+        const complainPayload = { puse: 1, duser: 2, content: 'test', torrentid: 99 };
+        axios.post.mockResolvedValue(mockData);
+
+        const response = await createComplain(complainPayload);
+
+        expect(axios.post).toHaveBeenCalledWith(
+            'http://localhost:8080/complain/create',
+            complainPayload
+        );
+        expect(response).toEqual(mockData.data);
+    });
+
+    test('deleteComplain should send delete request', async () => {
+        const mockData = { data: true };
+        axios.delete.mockResolvedValue(mockData);
+
+        const response = await deleteComplain(1);
+
+        expect(axios.delete).toHaveBeenCalledWith('http://localhost:8080/complain/delete/1');
+        expect(response).toBe(true);
+    });
+
+    test('updateComplain should put complain data', async () => {
+        const complainPayload = { complainid: 1, content: 'updated' };
+        const mockData = { data: true };
+        axios.put.mockResolvedValue(mockData);
+
+        const response = await updateComplain(complainPayload);
+
+        expect(axios.put).toHaveBeenCalledWith(
+            'http://localhost:8080/complain/update',
+            complainPayload
+        );
+        expect(response).toBe(true);
+    });
+
+    test('getComplainsByTargetUser should fetch complains by duser', async () => {
+        const mockData = { data: [{ complainid: 1, duser: 2 }] };
+        axios.get.mockResolvedValue(mockData);
+
+        const response = await getComplainsByTargetUser(2);
+
+        expect(axios.get).toHaveBeenCalledWith('http://localhost:8080/complain/target/2');
+        expect(response).toEqual(mockData.data);
+    });
+
+    test('getComplainsByPostingUser should fetch complains by puse', async () => {
+        const mockData = { data: [{ complainid: 1, puse: 1 }] };
+        axios.get.mockResolvedValue(mockData);
+
+        const response = await getComplainsByPostingUser(1);
+
+        expect(axios.get).toHaveBeenCalledWith('http://localhost:8080/complain/from/1');
+        expect(response).toEqual(mockData.data);
+    });
+
+    test('getAllComplains should fetch all complains', async () => {
+        const mockData = { data: [{ complainid: 1 }] };
+        axios.get.mockResolvedValue(mockData);
+
+        const response = await getAllComplains();
+
+        expect(axios.get).toHaveBeenCalledWith('http://localhost:8080/complain/all');
+        expect(response).toEqual(mockData.data);
+    });
+
+    test('getComplainDetailById should fetch detailed complain info', async () => {
+        const mockData = { data: { complainid: 1, puse: 1, duser: 2 } };
+        axios.get.mockResolvedValue(mockData);
+
+        const response = await getComplainDetailById(1);
+
+        expect(axios.get).toHaveBeenCalledWith('http://localhost:8080/complain/detail/1');
+        expect(response).toEqual(mockData.data);
+    });
+});