text: 'use strict';
  
  const common = require('../common');
  const assert = require('assert');
  const fs = require('fs');
  const path = require('path');
  
  common.refreshTmpDir();
  
  assert.doesNotThrow(() => {
    fs.access(Buffer.from(common.tmpDir), common.mustCall((err) => {
      assert.ifError(err);
    }));
  });
  
  assert.doesNotThrow(() => {
    const buf = Buffer.from(path.join(common.tmpDir, 'a.txt'));
    fs.open(buf, 'w+', common.mustCall((err, fd) => {
      assert.ifError(err);
      assert(fd);
      fs.close(fd, common.mustCall((err) => {
        assert.ifError(err);
      }));
    }));
  });
  
  assert.throws(() => {
    fs.accessSync(true);
  }, /path must be a string or Buffer/);
  
  const dir = Buffer.from(common.fixturesDir);
  fs.readdir(dir, 'hex', common.mustCall((err, hexList) => {
    assert.ifError(err);
    fs.readdir(dir, common.mustCall((err, stringList) => {
      assert.ifError(err);
      stringList.forEach((val, idx) => {
        const fromHexList = Buffer.from(hexList[idx], 'hex').toString();
        assert.strictEqual(
          fromHexList,
          val,
          `expected ${val}, got ${fromHexList} by hex decoding ${hexList[idx]}`
        );
      });
    }));
  }));
  