复利计算的单元测试

Posted 2020-07-02

此次测试只用两个单元作为例子

结果截图：

源代码：

public class testMoney {
 public double danli(double P ,double i,double N ){
     double M;
     for (int j = 0; j < N; j++) {
         P = P * (1 + i);
         P = P + N;
     }
      M= Math.round((P - N) * 100) / 100.0;
     return M;
 }
 public static double moneyzz(double P, double i, double N, double T) {
     double F;
     for (int j = 0; j < N; j++) {
         P = P * (1 + i);
         P = P + T;
     }
     F = Math.round((P - T) * 100) / 100.0;
     return F;
 }
}

import static org.junit.Assert.*;

import org.junit.Test;


public class testMoneyTest {

	@Test
	public void testdanli() {
		double f = new testMoney().danli(10000, 0.03, 1);
		boolean right = 10300.0 ==f;
        assertEquals(true,right);
	}

}

　　

import static org.junit.Assert.*;

import org.junit.Test;


public class testMoneyTest2 {

	@Test
	public void testMoneyzz() {
		double f = new testMoney().moneyzz(25000, 0.03, 4, 1350);
		boolean right = 32435.62 ==f;
        assertEquals(true,right);
	}

}