src/test/java/com/cs102/attendance/controller/TestControllerTest.java

package com.cs102.attendance.controller;

import com.cs102.attendance.entity.Student;
import com.cs102.attendance.repository.StudentRepository;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.test.context.bean.override.mockito.MockitoBean;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.MockMvc;

import java.util.UUID;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.when;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;

@WebMvcTest(TestController.class)
public class TestControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @MockitoBean
    private StudentRepository studentRepository;

    @Test
    public void testInsertTestDataWithValidData() throws Exception {
        // Given
        Student mockSavedStudent = new Student("TEST001", "Test Student");
        mockSavedStudent.setId(UUID.randomUUID());
        when(studentRepository.save(any(Student.class))).thenReturn(mockSavedStudent);

        // When & Then
        mockMvc.perform(post("/api/test/insert-test-data")
                .param("code", "TEST001")
                .param("name", "Test Student")
                .contentType(MediaType.APPLICATION_JSON))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.code").value("TEST001"))
                .andExpect(jsonPath("$.name").value("Test Student"));
    }

    @Test
    public void testInsertTestDataWithEmail() throws Exception {
        // Given
        Student mockSavedStudent = new Student("TEST002", "Test Student 2");
        mockSavedStudent.setEmail("test@example.com");
        mockSavedStudent.setId(UUID.randomUUID());
        when(studentRepository.save(any(Student.class))).thenReturn(mockSavedStudent);

        // When & Then
        mockMvc.perform(post("/api/test/insert-test-data")
                .param("code", "TEST002")
                .param("name", "Test Student 2")
                .param("email", "test@example.com")
                .contentType(MediaType.APPLICATION_JSON))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.code").value("TEST002"))
                .andExpect(jsonPath("$.name").value("Test Student 2"))
                .andExpect(jsonPath("$.email").value("test@example.com"));
    }

    @Test
    public void testInsertTestDataWithException() throws Exception {
        // Given
        when(studentRepository.save(any(Student.class)))
                .thenThrow(new RuntimeException("Database error"));

        // When & Then
        mockMvc.perform(post("/api/test/insert-test-data")
                .param("code", "TEST003")
                .param("name", "Test Student 3")
                .contentType(MediaType.APPLICATION_JSON))
                .andExpect(status().isInternalServerError());
    }
}