[开发测试]对实体类进行单元测试的小技巧

抽象类

/**
 * @Author zhaozhen
 * @Date 2021/7/22 6:14 下午
 * @Version 1.0  用来测试实体类，提高单测覆盖率。
 */
@SpringBootTest
@RunWith(MockitoJUnitRunner.class)
public abstract class BaseVoEntityTest<T> {
    protected abstract T getT();

    private void testGetAndSet() throws IllegalAccessException, InstantiationException, IntrospectionException,
            InvocationTargetException, NoSuchMethodException {
        T t = getT();
        Class modelClass = t.getClass();
        Object obj = modelClass.getDeclaredConstructor().newInstance();
        Field[] fields = modelClass.getDeclaredFields();
        for (Field f : fields) {
            boolean isStatic = Modifier.isStatic(f.getModifiers());
            // 过滤字段
            if (f.getName().equals("isSerialVersionUID") || f.getName().equals("serialVersionUID") || isStatic || f.getGenericType().toString().equals("boolean")
                    || f.isSynthetic()) {
                continue;
            }
            PropertyDescriptor pd = new PropertyDescriptor(f.getName(), modelClass);
            Method get = pd.getReadMethod();
            Method set = pd.getWriteMethod();
            set.invoke(obj, get.invoke(obj));
        }
    }

    @Test
    public void getAndSetTest() throws InvocationTargetException, IntrospectionException,
            InstantiationException, IllegalAccessException, NoSuchMethodException {
        this.testGetAndSet();
    }

}

使用示例

public class StudentTest extends BaseVoEntityTest<Student> {

    private Student studentUnderTest;

    @Before
    public void setUp() {
        studentUnderTest = new Student();
        studentUnderTest.setId(1);
        studentUnderTest.setAge(11);
        studentUnderTest.setName("test");
    }

    @Test
    public void testEquals() {
        // Run the test
        final boolean result = studentUnderTest.getName().equals("test");
        // Verify the results
        assertThat(result).isTrue();
    }

    @Override
    protected Student getT() {
        return studentUnderTest;
    }
}