复利计算器Junit单元测试
一。测试场景
| 测试模块 | 测试输入 | 预期结果 | 运行结果 | bug跟踪 |
| 复利计算 |
（本金,利率,年限,次数） |
终值 |
||
|
测试运算结果 |
(100,5,3,1) | 115.76 | 115.76 | |
| 测试输入负数 | (-100,5,3,1) | False | False | |
| 测试输入0 | (0,5,3,1) | False | False | |
| 单利计算 | (本金,利率,年限) |
终值 |
||
|
测试运算结果 |
(1000,2,5) | 1100 | 1100 | |
| 测试输入负数 | (-1000,2,5) | False | False | |
| 测试输入0 | (0,2,5) | False | False | |
| 本金估算 | (终值,利率,年限,次数) | 本金 | ||
|
测试运算结果 |
(1000,2,5,1) | 905.73 | 905.73 | |
| 测试输入负数 | (-1000,2,5,1) | False | False | |
| 测试输入0 | (0,2,5,1) | False | False | |
| 年限估算 | (本金,利率,次数,终值) | 年限 | ||
|
测试运算结果 |
(1000,2,1,2000) | 35 | 35 | |
| 测试输入负数 | (-1000,-2,1,2000) | False | False | |
| 测试输入0 | (0,2,1,2000) | False | False | |
| 利率估算 | (本金,年限,次数,终值) | 利率 | ||
|
测试运算结果 |
(1000,5,1,2000) | 14.86 | 14.86 | |
| 测试输入负数 | (-1000,-5,1,2000) | False | False | |
| 测试输入0 | (0,0,1,2000) | False | False | |
| 按年投资 | (年投资额,利率,定投年数) | |||
|
测试运算结果 |
(1000,2,5) | 5308.12 | 5308.12 | |
| 测试输入负数 | (-1000,2,5) | False | False | |
| 测试输入0 | (0,2,5) | False | False | |
| 按月投资 | (月投资额,利率,定投月数) | |||
|
测试运算结果 |
(1000,2,6) | 6035.09 | 6035.09 | |
| 测试输入负数 | (-1000,2,6) | False | False | |
| 测试输入0 | (0,2,6) | False | False | |
| 等额本息还款 | (贷款金额,利率,年限,次数) | |||
|
测试运算结果 |
(10000,2,5,2) | 175.16 | 175.16 | |
| 测试输入负数 | (-10000,2,5,2) | False | False | |
| 测试输入0 | (0,2,5,2) | False | False |
二。测试代码
1 import static org.junit.Assert.*; 2 3 import org.junit.Assert; 4 import org.junit.Before; 5 import org.junit.Test; 6 7 8 public class test { 9 @Before 10 public void setUp() throws Exception { 11 } 12 @org.junit.Test 13 public void testCompound() { 14 CompoundCalculator Compound = new CompoundCalculator(); 15 double F = Compound.Compound(100,5,3,1); 16 Assert.assertEquals(F, 115.76, 1.0); 17 // assertTrue(F>0); 18 double f =Compound.Compound(-100,5,3,1); 19 assertFalse(f>0); 20 double a=Compound.Compound(0,5,3,1); 21 assertFalse(a>0); 22 } 23 @org.junit.Test 24 public void testSimple() { 25 CompoundCalculator Simple = new CompoundCalculator(); 26 double F = Simple.Simple(1000,2,5); 27 Assert.assertEquals(F, 1100, 0.0); 28 // assertTrue(F>0); 29 double f =Simple.Simple(-1000,2,5); 30 assertFalse(f>0); 31 double a=Simple.Simple(0,2,5); 32 assertFalse(a>0); 33 } 34 @org.junit.Test 35 public void testPrinciple() { 36 CompoundCalculator Principle = new CompoundCalculator(); 37 double F = Principle.Principle(1000,2,5,1); 38 Assert.assertEquals(F, 905.73, 1.0); 39 // assertTrue(F>0); 40 double f =Principle.Principle(-1000,2,5,1); 41 assertFalse(f>0); 42 double a=Principle.Principle(0,2,5,1); 43 assertFalse(a>0); 44 } 45 @org.junit.Test 46 public void testYear() { 47 CompoundCalculator Year = new CompoundCalculator(); 48 double F = Year.Year(1000,2,1,2000); 49 Assert.assertEquals(F, 35, 0.0); 50 // assertTrue(F>0); 51 double f =Year.Year(-1000,-2,1,2000); 52 assertFalse(f>0); 53 double a=Year.Year(0,2,1,2000); 54 assertFalse(a<0); 55 } 56 @org.junit.Test 57 public void testRate() { 58 CompoundCalculator Rate = new CompoundCalculator(); 59 double F = Rate.Rate(1000,5,1,2000); 60 Assert.assertEquals(F, 14.86, 1.0); 61 // assertTrue(F>0); 62 double f =Rate.Rate(-1000,-5,1,2000); 63 assertFalse(f>0); 64 double a=Rate.Rate(0,0,1,2000); 65 assertFalse(a<0); 66 } 67 @org.junit.Test 68 public void testYearinvest() { 69 CompoundCalculator Yearinvest = new CompoundCalculator(); 70 double F = Yearinvest.Yearinvest(1000,2,5); 71 Assert.assertEquals(F, 5308.12, 1.0); 72 // assertTrue(F>0); 73 double f =Yearinvest.Yearinvest(-1000,2,5); 74 assertFalse(f>0); 75 double a=Yearinvest.Yearinvest(0,2,5); 76 assertFalse(a>0); 77 } 78 @org.junit.Test 79 public void testMonthinvest() { 80 CompoundCalculator Monthinvest = new CompoundCalculator(); 81 double F = Monthinvest.Monthinvest(1000,2,6); 82 Assert.assertEquals(F, 6035.09, 1.0); 83 // assertTrue(F>0); 84 double f =Monthinvest.Monthinvest(-1000,2,6); 85 assertFalse(f>0); 86 double a=Monthinvest.Monthinvest(0,2,6); 87 assertFalse(a>0); 88 } 89 @org.junit.Test 90 public void testRepayment() { 91 CompoundCalculator Repayment = new CompoundCalculator(); 92 double F = Repayment.Repayment(10000,2,5,2); 93 Assert.assertEquals(F, 175.16, 1.0); 94 // assertTrue(F>0); 95 double f =Repayment.Repayment(-10000,2,5,2); 96 assertFalse(f>0); 97 double a=Repayment.Repayment(0,2,5,2); 98 assertFalse(a>0); 99 } 100 101 }
三。测试结果
