Add more log messages for startup

packages/cli/test/utils/simulation/SimulationEnvironment.ts

@@ -9,6 +9,7 @@ import {nodeUtils} from "@lodestar/beacon-node";
 import {ChainForkConfig} from "@lodestar/config";
 import {activePreset} from "@lodestar/params";
 import {BeaconStateAllForks, interopSecretKey} from "@lodestar/state-transition";
+import {formatTime} from "@lodestar/test-utils";
 import {EpochClock, MS_IN_SEC} from "./EpochClock.js";
 import {ExternalSignerServer} from "./ExternalSignerServer.js";
 import {SimulationTracker} from "./SimulationTracker.js";
@@ -96,6 +97,11 @@ export class SimulationEnvironment {
 
   async start(opts: StartOpts): Promise<void> {
     const currentTime = Date.now();
+    console.log(
+      `Starting simulation environment "${this.options.id}". currentTime=${new Date(
+        currentTime
+      ).toISOString()} simulationTimeout=${formatTime(opts.runTimeoutMs)}`
+    );
     if (opts.runTimeoutMs > 0) {
       setTimeout(() => {
         const slots = this.clock.getSlotFor((currentTime + opts.runTimeoutMs) / MS_IN_SEC);
@@ -119,28 +125,35 @@ export class SimulationEnvironment {
         `Start sequence not completed before genesis, in ${msToGenesis}ms (approx. ${epoch}/${slot}).`
       ).catch((e) => console.error("Error on stop", e));
     }, msToGenesis);
+    console.log(`Waiting for genesis for ${formatTime(msToGenesis)} else simulation will stop.`);
 
     try {
       registerProcessHandler(this);
       if (!fs.existsSync(this.options.rootDir)) {
         await mkdir(this.options.rootDir);
       }
 
+      console.log("Starting the simulation runner");
       await this.runner.start();
+
+      console.log("Starting execution nodes");
       await Promise.all(this.nodes.map((node) => node.execution.job.start()));
 
+      console.log("Initializing genesis state for beacon nodes");
       await this.initGenesisState();
       if (!this.genesisState) {
         throw new Error("The genesis state for CL clients is not defined.");
       }
 
+      console.log("Starting beacon nodes");
       await Promise.all(this.nodes.map((node) => node.beacon.job.start()));
+
+      console.log("Starting validators");
       await Promise.all(this.nodes.map((node) => node.validator?.job.start()));
 
       if (this.nodes.some((node) => node.validator?.keys.type === "remote")) {
-        console.log("Starting external signer...");
+        console.log("Starting external signer");
         await this.externalSigner.start();
-        console.log("Started external signer");
 
         for (const node of this.nodes) {
           if (node.validator?.keys.type === "remote") {
@@ -156,6 +169,7 @@ export class SimulationEnvironment {
         }
       }
 
+      console.log("Starting the simulation tracker");
       await this.tracker.start();
       await Promise.all(this.nodes.map((node) => this.tracker.track(node)));
     } catch (error) {

packages/test-utils/src/childProcess.ts

@@ -5,6 +5,7 @@ import fs from "node:fs";
 import path from "node:path";
 import {sleep} from "@lodestar/utils";
 import {TestContext} from "./interfaces.js";
+import {formatTime} from "./format.js";
 
 /**
  * If timeout is greater than 0, the parent will send the signal
@@ -202,11 +203,6 @@ const defaultStartOpts = {
   resolveOn: ChildProcessResolve.Immediate,
 };
 
-function formatTime(timeMs: number): string {
-  const d = new Date(timeMs);
-  return `${d.getHours()}:${d.getMinutes()}:${d.getSeconds()}.${d.getMilliseconds()}`;
-}
-
 /**
  * Spawn child process and return it
  *

packages/test-utils/src/format.ts

@@ -0,0 +1,9 @@
+/**
+ * Format a time in milliseconds to a string.
+ * @param timeMs
+ * @returns
+ */
+export function formatTime(timeMs: number): string {
+  const d = new Date(timeMs);
+  return `${d.getHours()}:${d.getMinutes()}:${d.getSeconds()}.${d.getMilliseconds()}`;
+}

packages/test-utils/src/index.ts

@@ -1,6 +1,7 @@
 export * from "./cli.js";
 export * from "./childProcess.js";
 export * from "./externalSigner.js";
+export * from "./format.js";
 export * from "./keystores.js";
 export * from "./path.js";
 export * from "./timeout.js";