fix: handle case where decimals are 0

vegaprotocol · Mar 6, 2024 · 5502b8b · 5502b8b
1 parent 05bc3c9
commit 5502b8b
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Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/frontend/hooks/format-asset-amount/format-asset-amount.spec.tsx b/frontend/hooks/format-asset-amount/format-asset-amount.spec.tsx
@@ -66,4 +66,18 @@ describe('useFormatAssetAmount', () => {
     expect(result.current?.formattedAmount).toBe('0.000000000123')
     expect(result.current?.symbol).toBe('SYMBOL')
   })
+
+  it('handles decimals as 0', () => {
+    mockStore(useAssetsStore, {
+      getAssetById: () => ({
+        details: {
+          symbol: 'SYMBOL',
+          decimals: 0
+        }
+      })
+    })
+    const { result } = renderHook(() => useFormatAssetAmount('foo', '123'))
+    expect(result.current?.formattedAmount).toBe('123')
+    expect(result.current?.symbol).toBe('SYMBOL')
+  })
 })
diff --git a/frontend/hooks/format-asset-amount/format-asset-amount.tsx b/frontend/hooks/format-asset-amount/format-asset-amount.tsx
@@ -12,7 +12,8 @@ export const useFormatAssetAmount = (assetId?: string, amount?: string) => {
   const assetInfo = getAssetById(assetId)
   const decimals = Number(get(assetInfo, 'details.decimals'))
   const symbol = get(assetInfo, 'details.symbol')
-  if (!symbol || !decimals)
+  const noDecimals = !decimals && decimals !== 0
+  if (!symbol || noDecimals)
     throw new Error(`Could not find amount, decimals or symbol when trying to render transaction for asset ${assetId}`)
   const formattedAmount = formatNumber(toBigNum(amount, decimals), decimals)
   return { formattedAmount, symbol }