pad sig figs with trailing 0s

remove minimumDecimalPlaces argument

src/utils/formatOutputs.ts

@@ -15,8 +15,7 @@ export function formatSignificant(
   denominator: BigintIsh = ONE,
   significantDigits: number,
   format: object = { groupSeparator: '' },
-  roundingMode: number = Decimal.ROUND_HALF_UP,
-  minimumDecimalPlaces: number = 0
+  roundingMode: number = Decimal.ROUND_HALF_UP
 ): string {
   invariant(Number.isInteger(significantDigits), `${significantDigits} is not an integer.`)
   invariant(significantDigits > 0, `${significantDigits} isn't positive.`)
@@ -28,7 +27,9 @@ export function formatSignificant(
     .div(denominatorParsed.toString())
     .toSignificantDigits(significantDigits)
   return quotient.toFormat(
-    minimumDecimalPlaces > quotient.decimalPlaces() ? minimumDecimalPlaces : quotient.decimalPlaces(),
+    quotient.precision(true) >= significantDigits
+      ? quotient.decimalPlaces()
+      : significantDigits - (quotient.precision(true) - quotient.decimalPlaces()),
     format
   )
 }

test/computation.test.ts

@@ -77,12 +77,11 @@ describe('entities', () => {
         expect(route.midPrice.formatSignificant(2)).toEqual('1200')
         expect(route.midPrice.formatSignificant(3)).toEqual('1230')
         expect(route.midPrice.formatSignificant(4)).toEqual('1234')
-        expect(route.midPrice.formatSignificant(5)).toEqual('1234')
-        expect(route.midPrice.formatSignificant(4, { groupSeparator: ',' })).toEqual('1,234')
-        expect(route.midPrice.formatSignificant(4, undefined, undefined, 2)).toEqual('1234.00')
+        expect(route.midPrice.formatSignificant(5)).toEqual('1234.0')
+        expect(route.midPrice.formatSignificant(5, { groupSeparator: ',' })).toEqual('1,234.0')
         expect(route.midPrice.invert().formatSignificant(1)).toEqual('0.0008')
         expect(route.midPrice.invert().formatSignificant(2)).toEqual('0.00081')
-        expect(route.midPrice.invert().formatSignificant(3)).toEqual('0.00081')
+        expect(route.midPrice.invert().formatSignificant(3)).toEqual('0.000810')
         expect(route.midPrice.invert().formatSignificant(4)).toEqual('0.0008104')
         expect(route.midPrice.invert().formatSignificant(4, undefined, 1)).toEqual('0.0008103')
         expect(route.midPrice.invert().formatSignificant(5)).toEqual('0.00081037')
@@ -93,6 +92,8 @@ describe('entities', () => {
         expect(route.midPrice.formatFixed(2, { groupSeparator: ',' })).toEqual('1,234.00')
         expect(route.midPrice.invert().formatFixed(0)).toEqual('0')
         expect(route.midPrice.invert().formatFixed(1)).toEqual('0.0')
+        expect(route.midPrice.invert().formatFixed(2)).toEqual('0.00')
+        expect(route.midPrice.invert().formatFixed(3)).toEqual('0.001')
         expect(route.midPrice.invert().formatFixed(4)).toEqual('0.0008')
         expect(route.midPrice.invert().formatFixed(5)).toEqual('0.00081')
         expect(route.midPrice.invert().formatFixed(6)).toEqual('0.000810')
@@ -123,7 +124,7 @@ describe('entities', () => {
           ).toEqual(inputAmount.toString())
 
           expect(trade.nextMidPrice.formatSignificant(18)).toEqual('1.38958368072925352')
-          expect(trade.nextMidPrice.invert().formatSignificant(18)).toEqual('0.71964')
+          expect(trade.nextMidPrice.invert().formatSignificant(18)).toEqual('0.719640000000000000')
 
           expect(trade.slippage.formatSignificant(18)).toEqual('-16.8751042187760547')
 
@@ -152,7 +153,7 @@ describe('entities', () => {
           ).toEqual(trade.inputAmount.toString())
 
           expect(trade.nextMidPrice.formatSignificant(18)).toEqual('1.38958368072925352')
-          expect(trade.nextMidPrice.invert().formatSignificant(18)).toEqual('0.71964')
+          expect(trade.nextMidPrice.invert().formatSignificant(18)).toEqual('0.719640000000000000')
 
           expect(trade.slippage.formatSignificant(18)).toEqual('-16.8751042187760547')
 
@@ -175,7 +176,7 @@ describe('entities', () => {
             const trade = new Trade(route, '1', TradeType.EXACT_INPUT)
 
             expect(trade.slippage.formatSignificant(18)).toEqual(
-              tokens[1].decimals === 9 ? '-0.300000099400899902' : '-0.3000000000000001'
+              tokens[1].decimals === 9 ? '-0.300000099400899902' : '-0.300000000000000100'
             )
           }
         })