Student Model Sample

StudentdalApplicationTests.java

package com.gbkim.student.dal;

import java.util.Optional;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import com.gbkim.student.dal.entities.Student;
import com.gbkim.student.dal.repos.StudentRepository;

@RunWith(SpringRunner.class)
@SpringBootTest
public class StudentdalApplicationTests {
	
	@Autowired
	private StudentRepository studentRepository; // Dependency Injection
	
	@Test
	public void testCreateStudent() {
		Student entity = new Student();
		entity.setName("cert");
		entity.setCourse("Java spring framework");
		entity.setFee(30d);
		studentRepository.save(entity);
	}
	@Test
	public void testFindStudentById() {
		// CrudRepository.findOne is replaced by .findById		
		Student student = studentRepository.findById(1l).orElse(null);
		System.out.println(student);
	}
	
	@Test
	public void testUpdateStudent() {
		Student student = studentRepository.findById(2l).orElse(null);
		student.setFee(40d);
		
		studentRepository.save(student);
	}
	
	@Test
	public void testDeleteStudent() {
		// Create Empty Student Instance
		Student student = new Student();
		// Set id number, which point to a row that is what you want to delete .
		student.setId(1l);
		// Send a delete transaction.
		studentRepository.delete(student);;
		
		// Run it!
	}
	
}