Willc/test scaffolding

package.json

@@ -90,12 +90,13 @@
     "prepare": "npx simple-git-hooks"
   },
   "dependencies": {
-    "@eth-optimism/contracts-ts": "^0.15.0"
+    "@eth-optimism/contracts-ts": "^0.15.0",
+    "@testing-library/react-hooks": "^8.0.1"
   },
   "peerDependencies": {
     "@tanstack/query-core": ">=5.0.0",
     "@tanstack/react-query": "beta",
-    "@wagmi/core": "alpha",
+    "@wagmi/core": "2.0.0-alpha.11",
     "op-viem": "1.3.0-alpha",
     "typescript": ">=5.0.4",
     "viem": "2.0.0-alpha.17",

src/_test/config.ts

@@ -0,0 +1,40 @@
+import { createConfig, http } from '@wagmi/core'
+import { mock } from '@wagmi/core/internal'
+import { opStackL2ChainContracts } from 'op-viem'
+import { baseAddresses } from 'op-viem/chains'
+import { base as viem_base, mainnet } from 'viem/chains'
+import { type OpConfig } from '../types/OpConfig.js'
+import { accounts } from './constants.js'
+import { getRpcUrls } from './utils.js'
+
+const base = {
+  chainId: viem_base.id,
+  l1ChaindId: mainnet.id,
+  l1Addresses: baseAddresses,
+  l2Addresses: opStackL2ChainContracts,
+  ...getRpcUrls({ port: 8547 }),
+  ...viem_base,
+  fork: {
+    blockNumber: process.env.VITE_OPTIMISM_FORK_BLOCK_NUMBER
+      ? BigInt(Number(process.env.VITE_OPTIMISM_FORK_BLOCK_NUMBER))
+      : 5940037n,
+    url: process.env.VITE_OPTIMISM_FORK_URL ?? 'https://mainnet.base.org',
+  },
+}
+
+export const config: OpConfig = {
+  l2chains: {
+    // @ts-expect-error this seems to have a mismatch that is likely a bug
+    [base.id]: base,
+  },
+
+  ...createConfig({
+    chains: [base],
+    connectors: [mock({ accounts })],
+    pollingInterval: 100,
+    storage: null,
+    transports: {
+      [base.id]: http(),
+    },
+  }),
+}

src/_test/constants.ts

@@ -0,0 +1,75 @@
+/**
+ * The id of the current test worker.
+ *
+ * This is used by the anvil proxy to route requests to the correct anvil instance.
+ */
+export const pool = Number(process.env.VITEST_POOL_ID ?? 1)
+
+// Test accounts
+export const accounts = ['0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266'] as const
+
+const messages = new Map()
+function warn(message: string) {
+  if (!messages.has(message)) {
+    messages.set(message, true)
+    console.warn(message)
+  }
+}
+
+export let forkBlockNumber: bigint
+if (process.env.VITE_ANVIL_BLOCK_NUMBER) {
+  forkBlockNumber = BigInt(Number(process.env.VITE_ANVIL_BLOCK_NUMBER))
+} else {
+  forkBlockNumber = 18136086n
+  warn(
+    `\`VITE_ANVIL_BLOCK_NUMBER\` not found. Falling back to \`${forkBlockNumber}\`.`,
+  )
+}
+
+export let forkUrl: string
+if (process.env.VITE_ANVIL_FORK_URL) {
+  forkUrl = process.env.VITE_ANVIL_FORK_URL
+} else {
+  forkUrl = 'https://cloudflare-eth.com'
+  warn(`\`VITE_ANVIL_FORK_URL\` not found. Falling back to \`${forkUrl}\`.`)
+}
+
+export let blockTime: number
+if (process.env.VITE_ANVIL_BLOCK_TIME) {
+  blockTime = Number(process.env.VITE_ANVIL_BLOCK_TIME)
+} else {
+  blockTime = 1
+  warn(`\`VITE_ANVIL_BLOCK_TIME\` not found. Falling back to \`${blockTime}\`.`)
+}
+
+export let rollupForkBlockNumber: bigint
+if (process.env.VITE_ANVIL_ROLLUP_BLOCK_NUMBER) {
+  rollupForkBlockNumber = BigInt(
+    Number(process.env.VITE_ANVIL_ROLLUP_BLOCK_NUMBER),
+  )
+} else {
+  rollupForkBlockNumber = 3709321n
+  warn(
+    `\`VITE_ANVIL_ROLLUP_BLOCK_NUMBER\` not found. Falling back to \`${rollupForkBlockNumber}\`.`,
+  )
+}
+
+export let rollupForkUrl: string
+if (process.env.VITE_ANVIL_ROLLUP_FORK_URL) {
+  rollupForkUrl = process.env.VITE_ANVIL_ROLLUP_FORK_URL
+} else {
+  rollupForkUrl = 'https://mainnet.base.org'
+  warn(
+    `\`VITE_ANVIL_ROLLUP_FORK_URL\` not found. Falling back to \`${rollupForkUrl}\`.`,
+  )
+}
+
+export let rollupBlockTime: number
+if (process.env.VITE_ANVIL_ROLLUP_BLOCK_TIME) {
+  rollupBlockTime = Number(process.env.VITE_ANVIL_ROLLUP_BLOCK_TIME)
+} else {
+  rollupBlockTime = 1
+  warn(
+    `\`VITE_ANVIL_ROLLUP_BLOCK_TIME\` not found. Falling back to \`${rollupBlockTime}\`.`,
+  )
+}