Fixed bug that returned an empty swap router 02 address for base chain (

#120)

* Updated code to correctly access addresses

* add test to ensure no regression

---------

Co-authored-by: jsy1218 <91580504+jsy1218@users.noreply.github.com>

src/addresses.test.ts

@@ -0,0 +1,26 @@
+import {SWAP_ROUTER_02_ADDRESSES} from "./addresses";
+import {ChainId} from "./chains";
+
+describe('addresses', () => {
+    describe('swap router 02 addresses', () => {
+        it('should return the correct address for base', () => {
+            const address = SWAP_ROUTER_02_ADDRESSES(ChainId.BASE)
+            expect(address).toEqual('0x2626664c2603336E57B271c5C0b26F421741e481')
+        });
+
+        it('should return the correct address for base goerli', () => {
+            const address = SWAP_ROUTER_02_ADDRESSES(ChainId.BASE_GOERLI)
+            expect(address).toEqual('0x8357227D4eDc78991Db6FDB9bD6ADE250536dE1d')
+        });
+
+        it('should return the correct address for avalanche', () => {
+            const address = SWAP_ROUTER_02_ADDRESSES(ChainId.AVALANCHE)
+            expect(address).toEqual('0xbb00FF08d01D300023C629E8fFfFcb65A5a578cE')
+        });
+
+        it('should return the correct address for BNB', () => {
+            const address = SWAP_ROUTER_02_ADDRESSES(ChainId.BNB)
+            expect(address).toEqual('0xB971eF87ede563556b2ED4b1C0b0019111Dd85d2')
+        });
+    });
+});

src/addresses.ts

@@ -310,7 +310,7 @@ export const MIXED_ROUTE_QUOTER_V1_ADDRESSES: AddressMap = SUPPORTED_CHAINS.redu
 }, {})
 
 export const SWAP_ROUTER_02_ADDRESSES = (chainId: number) => {
-  if (chainId in SUPPORTED_CHAINS) {
+  if (SUPPORTED_CHAINS.includes(chainId)) {
     const id = chainId as SupportedChainsType
     return CHAIN_TO_ADDRESSES_MAP[id].swapRouter02Address ?? '0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45'
   }