如何正确使用jmock

Question

我是jmock测试的新手，我创建了两个相互使用的类，只是为了让我了解模拟测试... 第一个类叫做计算器，用于计算这是计算器类

public class Calculator {
    private int l;
    private int u;


    public Calculator()
    {
        l = 0;
        u = 0;

    }

    public int Add(int a, int b)
    {
        int k;
        l = a;
        u =b;
        k = l+ b;
        return k;

    }

    public int multiply(int a, int b)
    {
        int o;
        l = a;
        u = b;
        o = l*u;
        return o;
    }

    public int subtract(int a, int b)
    {
        int y;
        l = a;
        u = b;
        y = l-u;
        return y;
    }
}

然后使用计算器计算货币的currecny类

public class Currency {

    private int yen;

    private int euro;
    private Calculator ken;


    public Currency(Calculator p)
    {
        yen = 25;
        euro = 16;
        ken = p;
    }

    public int getYenvalue(int s)
    {
         int l = ken.multiply(s,yen);
         return l;
    }

    public int getEuroValue(int pick)
    {
         int op = ken.multiply(pick, euro);
         return op;
    }
}

这是我写的JMock测试。问题是我一直收到错误，说从未调用方法add。有任何建议可以帮助解决这个问题吗？

import static org.junit.Assert.*;

import org.jmock.Expectations;
import org.jmock.Mockery;
import org.jmock.integration.junit4.JMock;
import org.jmock.integration.junit4.JUnit4Mockery;
import org.jmock.lib.legacy.ClassImposteriser;
import org.junit.Test;
import org.junit.runner.RunWith;


@RunWith(JMock.class)
public class testJMocktest {

    Mockery context = new JUnit4Mockery() {{
        setImposteriser(ClassImposteriser.INSTANCE);
    }};

    @Test
    public void testmultipy()
    {
        final Calculator calc = context.mock(Calculator.class);
        Currency currency = new Currency(calc);
        final int a = 500;

        context.checking(new Expectations() {{
            oneOf (calc).multiply(25,a); will(returnValue(12500));
        }});

        int u = currency.getYenvalue(a);

        assertEquals(u,12500);
    }
}