feat: adds initial viem package

packages/sdk/tests/integration/custom-fee-token/customFeeTokenTestHelpers.ts

@@ -1,14 +1,5 @@
 import { StaticJsonRpcProvider } from '@ethersproject/providers'
 import { Signer, Wallet, ethers, utils } from 'ethers'
-import {
-  Account,
-  parseEther,
-  parseUnits,
-  type Hex,
-  type WalletClient,
-  type Chain,
-  formatUnits,
-} from 'viem'
 
 import {
   testSetup as _testSetup,
@@ -67,7 +58,7 @@ export async function fundParentCustomFeeToken(
 
   const tx = await tokenContract.transfer(
     address,
-    utils.parseUnits('1000', decimals)
+    utils.parseUnits('10', decimals)
   )
   await tx.wait()
 }
@@ -118,63 +109,3 @@ export async function fundChildCustomFeeToken(childSigner: Signer) {
   })
   await tx.wait()
 }
-
-export async function getAmountInEnvironmentDecimals(
-  amount: string
-): Promise<[bigint, number]> {
-  if (isArbitrumNetworkWithCustomFeeToken()) {
-    const tokenDecimals = await getNativeTokenDecimals({
-      parentProvider: ethProvider(),
-      childNetwork: localNetworks().l3Network!,
-    })
-    return [parseUnits(amount, tokenDecimals), tokenDecimals]
-  }
-  return [parseEther(amount), 18] // ETH decimals
-}
-
-export function normalizeBalanceDiffByDecimals(
-  balanceDiff: bigint,
-  tokenDecimals: number
-): bigint {
-  // Convert to 18 decimals (ETH standard) for comparison
-  if (tokenDecimals === 18) return balanceDiff
-
-  // Convert to decimal string with proper precision
-  const formattedDiff = formatUnits(balanceDiff, 18)
-  // Parse back with target decimals
-  return parseUnits(formattedDiff, tokenDecimals)
-}
-
-export async function approveCustomFeeTokenWithViem({
-  parentAccount,
-  parentWalletClient,
-  chain,
-}: {
-  parentAccount: { address: string }
-  parentWalletClient: WalletClient
-  chain: Chain
-}) {
-  if (!isArbitrumNetworkWithCustomFeeToken()) return
-
-  const networks = localNetworks()
-  const inbox = networks.l3Network!.ethBridge.inbox
-
-  const currentAllowance = await getParentCustomFeeTokenAllowance(
-    parentAccount.address,
-    inbox
-  )
-
-  // Only approve if allowance is insufficient
-  if (currentAllowance.lt(ethers.constants.MaxUint256)) {
-    const ethBridger = await EthBridger.fromProvider(arbProvider())
-    const approveRequest = ethBridger.getApproveGasTokenRequest()
-    await parentWalletClient.sendTransaction({
-      to: approveRequest.to as Hex,
-      data: approveRequest.data as Hex,
-      account: parentAccount as Account,
-      chain,
-      value: BigInt(0),
-      kzg: undefined,
-    })
-  }
-}

packages/sdk/tests/testSetup.ts

@@ -40,7 +40,6 @@ import {
   isArbitrumNetworkWithCustomFeeToken,
 } from './integration/custom-fee-token/customFeeTokenTestHelpers'
 import { fundParentSigner } from './integration/testHelpers'
-import { Chain } from 'viem'
 
 loadEnv()
 
@@ -86,8 +85,6 @@ export const testSetup = async (): Promise<{
   inboxTools: InboxTools
   parentDeployer: Signer
   childDeployer: Signer
-  localEthChain: Chain
-  localArbChain: Chain
 }> => {
   const ethProvider = new JsonRpcProvider(config.ethUrl)
   const arbProvider = new JsonRpcProvider(config.arbUrl)
@@ -116,23 +113,6 @@ export const testSetup = async (): Promise<{
 
   assertArbitrumNetworkHasTokenBridge(setChildChain)
 
-  // Generate Viem chains using the network data we already have
-  const localEthChain = generateViemChain(
-    {
-      chainId: setChildChain.parentChainId,
-      name: 'EthLocal',
-    },
-    config.ethUrl
-  )
-
-  const localArbChain = generateViemChain(
-    {
-      chainId: setChildChain.chainId,
-      name: setChildChain.name,
-    },
-    config.arbUrl
-  )
-
   const erc20Bridger = new Erc20Bridger(setChildChain)
   const adminErc20Bridger = new AdminErc20Bridger(setChildChain)
   const ethBridger = new EthBridger(setChildChain)
@@ -156,8 +136,6 @@ export const testSetup = async (): Promise<{
     inboxTools,
     parentDeployer,
     childDeployer,
-    localEthChain,
-    localArbChain,
   }
 }
 
@@ -175,25 +153,3 @@ export function getLocalNetworksFromFile(): {
 
   return { l2Network: localL2, l3Network: localL3 }
 }
-
-function generateViemChain(
-  networkData: {
-    chainId: number
-    name: string
-  },
-  rpcUrl: string
-): Chain {
-  return {
-    id: networkData.chainId,
-    name: networkData.name,
-    nativeCurrency: {
-      decimals: 18,
-      name: 'Ether',
-      symbol: 'ETH',
-    },
-    rpcUrls: {
-      default: { http: [rpcUrl] },
-      public: { http: [rpcUrl] },
-    },
-  } as const
-}