Merge pull request #1464 from bancorprotocol/set-safedecimal-precision

Set Decimal precision and use in SafeDecimal and SDK worker

src/libs/safedecimal/index.ts

@@ -1,5 +1,12 @@
 import { Decimal } from 'decimal.js';
 
+Decimal.set({
+  precision: 100,
+  rounding: Decimal.ROUND_HALF_DOWN,
+  toExpNeg: -30,
+  toExpPos: 30,
+});
+
 /**
  * Sanitizes the input value for safe decimal creation.
  * If the value is a string, it checks if it's a valid
@@ -52,4 +59,4 @@ class SafeDecimal extends Decimal {
   }
 }
 
-export { SafeDecimal };
+export { SafeDecimal, Decimal };

src/libs/safedecimal/safedecimal.test.ts

@@ -21,7 +21,10 @@ describe('SafeDecimal', () => {
     it('should return a valid output if input is exponential number', () => {
       expect(new SafeDecimal('1E-5').toString()).toEqual('0.00001');
       expect(new SafeDecimal('10E0').toString()).toEqual('10');
-      expect(new SafeDecimal('10E20').toString()).toEqual('1e+21');
+      expect(new SafeDecimal('10E20').toString()).toEqual(
+        '1000000000000000000000'
+      );
+      expect(new SafeDecimal('10E101').toString()).toEqual('1e+102');
     });
     it('should return a valid output if input is a negative number', () => {
       expect(new SafeDecimal('-1E-5').toString()).toEqual('-0.00001');

src/utils/fullOutcome.test.ts

@@ -25,7 +25,9 @@ describe('fullOutcome', () => {
     });
 
     it('should return mean price for range price', () => {
-      const mean = new SafeDecimal('158.1138830084189666');
+      const mean = new SafeDecimal(
+        '158.1138830084189665999446772216359266859777569662608413428752426396297219319619110672124054189650148'
+      );
       expect(geoMean('100', '250')).toEqual(mean);
     });
   });
@@ -55,9 +57,11 @@ describe('fullOutcome', () => {
       expect(getFullOutcome(noPriceAndMax)).toBeUndefined();
     });
     describe('Limit rate', () => {
-      it('[Buy] should return 3.1645569620253164557 with price 1580 & budget 5000', () => {
+      it('[Buy] should return 3.164556962025316455696202531645569620253164556962025316455696202531645569620253164556962025316455696 with price 1580 & budget 5000', () => {
         const input = { ...base, min: '1580', max: '1580', budget: '5000' };
-        expect(getFullOutcome(input)?.amount).toBe('3.1645569620253164557');
+        expect(getFullOutcome(input)?.amount).toBe(
+          '3.164556962025316455696202531645569620253164556962025316455696202531645569620253164556962025316455696'
+        );
       });
       it('[Buy] should return 2 with price 1600 & budget 3200', () => {
         const input = { ...base, min: '1600', max: '1600', budget: '3200' };
@@ -79,24 +83,28 @@ describe('fullOutcome', () => {
       });
     });
     describe('Range rate', () => {
-      it('[Buy] should return 1.8353258709644941273 with min 1600, max 1900 & budget 3200', () => {
+      it('[Buy] should return 1.835325870964494127257676624782996067005054284308397868164355426593497822401329720276277539306081906 with min 1600, max 1900 & budget 3200', () => {
         const input = {
           ...base,
           min: '1600',
           max: '1900',
           budget: '3200',
         };
-        expect(getFullOutcome(input)?.amount).toBe('1.8353258709644941273');
+        expect(getFullOutcome(input)?.amount).toBe(
+          '1.835325870964494127257676624782996067005054284308397868164355426593497822401329720276277539306081906'
+        );
       });
-      it('[Sell] should return 4623.3105022267323378 with min 1800, max 1900 & budget 2.5', () => {
+      it('[Sell] should return 4623.31050222673233768764428609068316892671801758343090865592905434379973769774815972504734939917496 with min 1800, max 1900 & budget 2.5', () => {
         const input = {
           ...base,
           buy: false,
           min: '1800',
           max: '1900',
           budget: '2.5',
         };
-        expect(getFullOutcome(input)?.amount).toBe('4623.3105022267323378');
+        expect(getFullOutcome(input)?.amount).toBe(
+          '4623.31050222673233768764428609068316892671801758343090865592905434379973769774815972504734939917496'
+        );
       });
     });
   });