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test/async-hooks/test-promise.chain-promise-before-init-hooks.js

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+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+const initHooks = require('./init-hooks');
+const { checkInvocations } = require('./hook-checks');
+const { isMainThread } = require('worker_threads');
+
+if (!isMainThread) {
+  common.skip('Worker bootstrapping works differently -> different async IDs');
+}
+
+const p = new Promise(common.mustCall(function executor(resolve) {
+  resolve(5);
+}));
+
+p.then(function afterResolution(val) {
+  assert.strictEqual(val, 5);
+  return val;
+});
+
+// Init hooks after chained promise is created
+const hooks = initHooks();
+hooks._allowNoInit = true;
+hooks.enable();
+
+
+process.on('exit', function onexit() {
+  hooks.disable();
+  hooks.sanityCheck('PROMISE');
+
+  // Because the init event was never emitted the hooks listener doesn't
+  // know what the type was. Thus check for Unknown rather than PROMISE.
+  const as = hooks.activitiesOfTypes('PROMISE');
+  const unknown = hooks.activitiesOfTypes('Unknown');
+  assert.strictEqual(as.length, 0);
+  assert.strictEqual(unknown.length, 1);
+
+  const a0 = unknown[0];
+  assert.strictEqual(a0.type, 'Unknown');
+  assert.strictEqual(typeof a0.uid, 'number');
+  checkInvocations(a0, { before: 1, after: 1 }, 'when process exits');
+});