chore(cli-repl): work around Node.js REPL bug MONGOSH-589

packages/cli-repl/test/e2e.spec.ts

@@ -8,7 +8,7 @@ import { promises as fs, createReadStream } from 'fs';
 import { promisify } from 'util';
 import rimraf from 'rimraf';
 import path from 'path';
-import { readReplLogfile } from './repl-helpers';
+import { readReplLogfile, hasNodeBug38314 } from './repl-helpers';
 
 describe('e2e', function() {
   const testServer = startTestServer('shared');
@@ -517,6 +517,8 @@ describe('e2e', function() {
       let result;
       result = await shell.executeLine('require("a")');
       expect(result).to.match(/Error: Cannot find module 'a'/);
+      // Wait for double prompt because of Node.js REPL bug
+      if (hasNodeBug38314()) await eventually(() => shell.assertContainsOutput('> > '));
       result = await shell.executeLine('require("./a")');
       expect(result).to.match(/^A$/m);
       result = await shell.executeLine('require("b")');

packages/cli-repl/test/repl-helpers.ts

@@ -7,6 +7,8 @@ import chai, { expect } from 'chai';
 import sinon from 'ts-sinon';
 import sinonChai from 'sinon-chai';
 import chaiAsPromised from 'chai-as-promised';
+import repl from 'repl';
+import { PassThrough } from 'stream';
 import type { MongoshBus, MongoshBusEventsMap } from '@mongosh/types';
 
 chai.use(sinonChai);
@@ -76,6 +78,17 @@ async function readReplLogfile(logPath: string) {
     .map((line) => JSON.parse(line));
 }
 
+// https://github.com/nodejs/node/pull/38314
+function hasNodeBug38314() {
+  const input = new PassThrough();
+  const output = new PassThrough();
+  const evalFn = (code, ctx, filename, cb) => cb(new Error('err'));
+  const prompt = 'prompt#';
+  repl.start({ input, output, eval: evalFn, prompt });
+  input.end('s\n');
+  return String(output.read()).includes('prompt#prompt#');
+}
+
 export {
   expect,
   sinon,
@@ -85,5 +98,6 @@ export {
   waitEval,
   waitCompletion,
   fakeTTYProps,
-  readReplLogfile
+  readReplLogfile,
+  hasNodeBug38314
 };