test: add useMemo to prevent rerender loop (#6504)

Author: limitofzero

apps/cowswap-frontend/src/modules/ordersTable/hooks/useOrdersFillability.ts

@@ -20,28 +20,30 @@ export function useOrdersFillability(orders: GenericOrder[]): Record<string, Ord
   const tokens = useMemo(() => orders.map((order) => order.inputToken.address.toLowerCase()), [orders])
   const { balances, allowances } = useBalancesAndAllowances(tokens)
 
-  return orders.reduce<Record<string, OrderFillability>>((acc, order) => {
-    const inputTokenAddress = order.inputToken.address.toLowerCase()
-    if (getIsNativeToken(chainId, inputTokenAddress)) {
-      acc[order.id] = {
-        hasEnoughBalance: true,
-        hasEnoughAllowance: true,
-        hasPermit: false,
-        order,
+  return useMemo(() => {
+    return orders.reduce<Record<string, OrderFillability>>((acc, order) => {
+      const inputTokenAddress = order.inputToken.address.toLowerCase()
+      if (getIsNativeToken(chainId, inputTokenAddress)) {
+        acc[order.id] = {
+          hasEnoughBalance: true,
+          hasEnoughAllowance: true,
+          hasPermit: false,
+          order,
+        }
+        return acc
       }
-      return acc
-    }
 
-    const balance = balances[inputTokenAddress]
-    const allowance = allowances?.[inputTokenAddress]
+      const balance = balances[inputTokenAddress]
+      const allowance = allowances?.[inputTokenAddress]
 
-    acc[order.id] = {
-      hasEnoughBalance: balance ? balance.gte(order.sellAmount) : undefined,
-      hasEnoughAllowance: allowance ? allowance.gte(order.sellAmount) : undefined,
-      hasPermit: doesOrderHavePermit(order),
-      order,
-    }
+      acc[order.id] = {
+        hasEnoughBalance: balance ? balance.gte(order.sellAmount) : undefined,
+        hasEnoughAllowance: allowance ? allowance.gte(order.sellAmount) : undefined,
+        hasPermit: doesOrderHavePermit(order),
+        order,
+      }
 
-    return acc
-  }, {})
+      return acc
+    }, {})
+  }, [orders, chainId, balances, allowances])
 }