fs-of-type/test.js

import fs from 'fs';
import path from 'path';
import test from 'ava';
import async from 'async';
import fn from './';

test.cb('fn accepts valid path to contents', t => {
  fn(__dirname, 'directory', (err, dirs) => {
    t.is(err, null);
    t.deepEqual(dirs, ['.git', 'node_modules']);
    t.end();
  })
})

test.cb('fn returns array of items only of `type`', t => {
  fn(__dirname, 'file', (err, files) => {
    t.ifError(err);

    async.every(files, (file, cb) => {
      fs.stat(path.join(__dirname, file), (err, stats) => {
        if (err) return cb(err);

        cb(null, stats.isFile());
      })
    }, (err, p) => {
      t.ifError(err);
      t.is(p, true);
      t.end();
    })
  })
})

test.cb('fn returns empty array when no items of `type` in `ptc`', t => {
  fn(__dirname, 'symbolicLink', (err, symLinks) => {
    t.is(err, null);
    t.deepEqual(symLinks, []);
    t.end();
  })
})

test.cb('fn rejects invalid path to contents', t => {
  const pathTo = path.join(__dirname, 'x');

  fn(pathTo, 'file', (err, result) => {
    t.is(err.message, `${pathTo} is not a valid path\n`);
    t.end();
  })
})