JUnit 测试无法识别我的函数（通用函数）

Question

package Comparar;

import java.util.*;

public class Exercici {
    
    public void Exercici(){
        
    }
    
    public static <E extends Comparable <E>> int numMinors( E e, Iterator<E> it){
        int numMenors = 0;
        while(it.hasNext()){
            int comparacio = e.compareTo(it.next());
            if (comparacio == -1){
                numMenors += 1;
            }
        }
        return numMenors;
    }
    
    public static <E extends Comparable <E>> int numMinors(Comparator<E> comp, E e, Iterator<E> it){
        int numMenors =0;
        while (it.hasNext()){
            int comparacio = comp.compare(e, it.next());
            if(comparacio == -1){
                numMenors += 1;
            }
        }
        return numMenors;
    }

}

单元测试class:

import java.util.*;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;

public class ExerciciTest {

    public ExerciciTest() {

    }

    @Test
    public void compararCosesComparables() {
        int num = 0;

        Bottle b1 = new Bottle(0.33, 10, "Agua de Oro", "Dubai");
        Bottle b2 = new Bottle(1.5, 1, "asdf", "Rabat");
        Bottle b3 = new Bottle(2.5, 1.5, "qwerty", "Londres");
        Bottle b4 = new Bottle(5, 2, "poiuy", "Paris");
        Bottle b5 = new Bottle(2.5, 2, "Botella", "EEUU");

        List<Bottle> alb = new ArrayList<>();
        Iterator<Bottle> it = alb.iterator();
        alb.add(b1);
        alb.add(b2);
        alb.add(b3);
        alb.add(b4);

        num = numMinors(b5, it); //Error cannot find symbol

    }

    @Test
    public void compararCosesAmbComparador() {
        int num = 0;

        Bottle b1 = new Bottle(0.33, 10, "Gold water", "Dubai");
        Bottle b2 = new Bottle(1.5, 1, "asdf", "Rabat");
        Bottle b3 = new Bottle(2.5, 1.5, "qwerty", "Londres");
        Bottle b4 = new Bottle(5, 2, "poiuy", "Paris");
        Bottle b5 = new Bottle(2.5, 2, "Botella", "EEUU");

        ArrayList<Bottle> alb = new ArrayList<>();
        BottleComparator comp = new BottleComparator();
        Iterator<Bottle> it = alb.iterator();

        alb.add(b1);
        alb.add(b2);
        alb.add(b3);
        alb.add(b4);

        num = numMinors(comp, b5, it); //Error cannot find symbol

    }

}

所以我得到了 3 个 classes，实现 Comparator 的 BottleComparator，实现 Comparable 的 Bottle，以及包含我被要求执行的方法的 class。

问题是测试 class 似乎无法识别我的函数 numMinors，我已经尝试将所有文档放在另一个包中并关闭项目并再次打开它。有什么线索吗？？

（我还需要把断言函数放在测试上）

错误信息：

Cannot find symbol

symbol: method numMinors (......)

location: class exerciciTest

Answer 1

numMinors 不是您的 class ExerciciTest 的静态方法。这是 class Exercici.

的静态方法

所以你可以 Exercici.numMinors(...) 但不能 ExerciciTest.numMinors(...)。

这里直接在你的ExerciciTestclass中调用numMinors(...)。 ExerciciTest class

中没有静态方法 numMinors 出现错误

JUnit 测试无法识别我的函数（通用函数）

JUnit test doesn't recognise my function (Generic functions)

java

junit

iterator

list

generic-programming