@EqualsAndHashCode(callSuper = true)单测如何覆盖，代码示例

在单元测试中，覆盖带有`@EqualsAndHashCode(callSuper = true)`注解的方法，可以通过继承父类并重写该方法来实现。下面是一个示例代码：

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

class ParentClass {
    private final int id;
    private final String name;

    public ParentClass(int id, String name) {
        this.id = id;
        this.name = name;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        ParentClass that = (ParentClass) o;

        if (id != that.id) return false;
        return name != null ? name.equals(that.name) : that.name == null;
    }

    @Override
    public int hashCode() {
        int result = id;
        result = 31 * result + (name != null ? name.hashCode() : 0);
        return result;
    }
}

class ChildClass extends ParentClass {
    private final String additionalProperty;

    public ChildClass(int id, String name, String additionalProperty) {
        super(id, name);
        this.additionalProperty = additionalProperty;
    }

    // 覆盖父类的equals方法
    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (!super.equals(o)) return false;
        if (o == null || getClass() != o.getClass()) return false;

        ChildClass that = (ChildClass) o;

        return additionalProperty != null ? additionalProperty.equals(that.additionalProperty) : that.additionalProperty == null;
    }

    // 覆盖父类的hashCode方法
    @Override
    public int hashCode() {
        int result = super.hashCode();
        result = 31 * result + (additionalProperty != null ? additionalProperty.hashCode() : 0);
        return result;
    }
}

class ChildClassTest {
    @Test
    void testEqualsAndHashCode() {
        ParentClass parent1 = new ParentClass(1, "Parent");
        ParentClass parent2 = new ParentClass(1, "Parent");

        ChildClass child1 = new ChildClass(2, "Child", "Additional");
        ChildClass child2 = new ChildClass(2, "Child", "Additional");

        assertEquals(parent1, parent2);
        assertNotEquals(parent1, child1);
        assertNotEquals(parent1.hashCode(), child1.hashCode());

        assertEquals(child1, child2);
        assertNotEquals(child1, parent1);
        assertNotEquals(child1.hashCode(), parent1.hashCode());
        
        // 其他针对equals和hashCode的测试
    }
}

在上面的示例中，`ParentClass`是一个基类，其中包含了带有`@EqualsAndHashCode(callSuper = true)`注解的`equals`和`hashCode`方法。`ChildClass`继承自`ParentClass`，并重写了这两个方法以适应子类的特定需求。在`ChildClassTest`中，我们可以进行针对`equals`和`hashCode`方法的单元测试。