test: switch to prool (latticexyz#3550)

Author: frolic

package.json

@@ -43,7 +43,6 @@
     "@types/node": "^20",
     "@typescript-eslint/eslint-plugin": "7.1.1",
     "@typescript-eslint/parser": "7.1.1",
-    "@viem/anvil": "^0.0.7",
     "chalk": "^5.2.0",
     "eslint": "8.57.0",
     "execa": "^9.5.2",
@@ -52,6 +51,7 @@
     "lint-staged": "^15.2.10",
     "prettier": "3.2.5",
     "prettier-plugin-solidity": "1.3.1",
+    "prool": "^0.0.16",
     "shx": "^0.3.4",
     "sort-package-json": "^2.10.1",
     "tsup": "8.3.0",

pnpm-lock.yaml

@@ -1,12 +1,17 @@
-import { startProxy as startAnvilProxy } from "@viem/anvil";
+import { createServer } from "prool";
+import { anvil } from "prool/instances";
 import { anvilHost, anvilPort } from "../common";
 import { execa } from "execa";
 
-// ensure anvil dies
-// TODO: maybe don't need this once we move to prool
-process.on("SIGINT", () => process.exit());
-process.on("SIGTERM", () => process.exit());
-process.on("SIGQUIT", () => process.exit());
+// The nightly warning from Foundry causes anvil to not start up properly.
+// https://github.com/wevm/prool/issues/35
+process.env.FOUNDRY_DISABLE_NIGHTLY_WARNING ??= "1";
+
+const server = createServer({
+  instance: anvil(),
+  host: anvilHost,
+  port: anvilPort,
+});
 
 export default async () => {
   console.log("building mock game contracts");
@@ -17,5 +22,9 @@ export default async () => {
   });
 
   console.log("starting anvil proxy");
-  return startAnvilProxy({ host: anvilHost, port: anvilPort });
+  const stopServer = await server.start();
+
+  return async () => {
+    await stopServer();
+  };
 };

test-setup/global/anvil.ts

@@ -0,0 +1,14 @@
+// TODO: remove once we upgrade to
+if (typeof Promise.withResolvers === "undefined") {
+  Promise.withResolvers = <T>() => {
+    let resolve: (value: T | PromiseLike<T>) => void;
+    let reject: (reason?: unknown) => void;
+    const promise = new Promise<T>((res, rej) => {
+      resolve = res;
+      reject = rej;
+    });
+    return { promise, resolve: resolve!, reject: reject! };
+  };
+}
+
+export default () => {};

test-setup/global/polyfill.ts

@@ -2,7 +2,11 @@ import { defineConfig } from "vitest/config";
 
 export default defineConfig({
   test: {
-    globalSetup: [`${__dirname}/test-setup/global/arktype.ts`, `${__dirname}/test-setup/global/anvil.ts`],
+    globalSetup: [
+      `${__dirname}/test-setup/global/polyfill.ts`,
+      `${__dirname}/test-setup/global/arktype.ts`,
+      `${__dirname}/test-setup/global/anvil.ts`,
+    ],
     setupFiles: [],
     passWithNoTests: true,
     // Temporarily set a low teardown timeout because anvil hangs otherwise