1  import { weightedAverageAPY } from '../ghoUtilities';
 2  
 3  describe('gho utilities', () => {
 4    it('calculates the weighted average APY correctly', () => {
 5      const baseBorrowRate = 0.02; // 2%
 6      const totalBorrowAmount = 1000;
 7      const discountableAmount = 100;
 8      const borrowRateAfterDiscount = 0.016; // 1.6%
 9  
10      const apy = weightedAverageAPY(
11        baseBorrowRate,
12        totalBorrowAmount,
13        discountableAmount,
14        borrowRateAfterDiscount
15      );
16  
17      expect(apy.toPrecision(3)).toEqual('0.0196');
18    });
19  
20    it('calculates the weighted average APY correctly when total borrow amount is 0', () => {
21      const baseBorrowRate = 0.02; // 2%
22      const totalBorrowAmount = 0;
23      const discountableAmount = 100;
24      const borrowRateAfterDiscount = 0.016; // 1.6%
25  
26      const apy = weightedAverageAPY(
27        baseBorrowRate,
28        totalBorrowAmount,
29        discountableAmount,
30        borrowRateAfterDiscount
31      );
32  
33      expect(apy.toPrecision(3)).toEqual('0.0160');
34    });
35    it('calculates the weighted average APY correctly when total borrow amount is less then the discountable amount', () => {
36      const baseBorrowRate = 0.02; // 2%
37      const totalBorrowAmount = 500;
38      const discountableAmount = 1000;
39      const borrowRateAfterDiscount = 0.016; // 1.6%
40  
41      const apy = weightedAverageAPY(
42        baseBorrowRate,
43        totalBorrowAmount,
44        discountableAmount,
45        borrowRateAfterDiscount
46      );
47  
48      expect(apy.toPrecision(3)).toEqual('0.0160');
49    });
50  });