问题描述
银行提供以下抵押贷款利率:
期限费率
10年3.00%
30年4.50%
根据客户的信用评分使用以下修饰符:
信用评分率修改器
300至699 2.00%
700至799 0.00%
800至850 -0.50%
抵押贷款的实际汇率使用两者计算术语和信用评分。例如,如果一个人需要10年期抵押贷款并且信用评分为550,则该比率为:3%+ 2%= 5%。如果另一个人需要相同的抵押贷款,但信用评分为810,则费率为3% - 0.50%= 2.50%。
浮动计算(int term,int score)
{
浮动利率= 0;
if(term == 10)
rate = 0.03f ;
否则if(term == 30)
rate = 0.045f;
if(得分> = 800)
退货率 - 0.005f;
否则if(得分> = 700)
退货率;
else if(得分> = 300)
退货率+ 0.02f;
扔new ArgumentOutOfRangeException();
}
实现100%代码覆盖率所需的测试用例数是
我尝试过:
我评分:10,得分:300,结果:
0.05
率:10,得分:700,结果:
0.03
评分:10,得分:850,结果:
0.025
评分:30,得分:300,结果:
0.065
率:30,得分:700,结果:
0.045
汇率:30,得分:850,结果:
A bank offers the following mortgage rates:
TermRate
10 years3.00%
30 years4.50%
With the following modifiers based on a customer's credit score:
Credit ScoreRate Modifier
300 to 6992.00%
700 to 7990.00%
800 to 850-0.50%
The actual rate for a mortgage is calculated using both the term and the credit score. For example if a person needs a 10 year mortgage and has a credit score of 550 the rate would be: 3% + 2% = 5%. If another person needs the same mortgage but has a credit score of 810, the rate would be 3% - 0.50% = 2.50%.
float calculaterate(int term, int score)
{
float rate = 0;
if (term == 10)
rate = 0.03f;
else if (term == 30)
rate = 0.045f;
if (score >= 800)
return rate - 0.005f;
else if (score >= 700)
return rate;
else if (score >= 300)
return rate + 0.02f;
throw new ArgumentOutOfRangeException();
}
The number of test cases needed to achieve 100% code coverage is
What I have tried:
I rate: 10, score: 300, result:
0.05
rate: 10, score: 700, result:
0.03
rate: 10, score: 850, result:
0.025
rate: 30, score: 300, result:
0.065
rate: 30, score: 700, result:
0.045
rate: 30, score: 850, result:
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