text: 'use strict';
  const common = require('../../common');
  const path = require('path');
  const assert = require('assert');
  const { Worker } = require('worker_threads');
  const binding = path.resolve(__dirname, `./build/${common.buildType}/binding`);
  const { getFreeCallCount } = require(binding);
  
  // Test that buffers allocated with a free callback through our APIs are
  // released when a Worker owning it exits.
  
  const w = new Worker(`require(${JSON.stringify(binding)})`, { eval: true });
  
  assert.strictEqual(getFreeCallCount(), 0);
  w.on('exit', common.mustCall(() => {
    assert.strictEqual(getFreeCallCount(), 1);
  }));
  