util-equal

Utils for checking file contents.

Support four cases:

• Streams v.s. Streams.
• Filenames v.s. filenames.
• Streams v.s. filenames.
• Streams v.s. contents.

Example

var equal = require('util-equal');
var fs = require('fs');
var path = require('path');
var filename = path.join(__dirname, 'source');
var expected = path.join(__dirname, 'source.expected');

equal(
  fs.createReadStream(filename),
  fs.createReadStream(expected),
  function (res) {
    console.log('stream v.s. stream', res);
  }
);

equal(
  filename,
  expected,
  function (res) {
    console.log('filename v.s. filename', res);
  }
);

equal(
  fs.createReadStream(filename),
  expected,
  function (res) {
    console.log('stream v.s. filename', res);
  }
);

equal.str(
  fs.createReadStream(filename),
  fs.readFileSync(expected, 'utf8'),
  function (res) {
    console.log('stream v.s. contents', res);
  }
);

outputs:

⌘ node example/equal.js
stream v.s. stream true
filename v.s. filename true
stream v.s. filename true
stream v.s. contents true

API

equal(actual, expected, done)

Check whether file contents are the same.

actual, expected

Type: Stream, String, Array

If Stream, should flow the file contents. If String, should be the filename. If Array, each element should be Stream or String.

done(res)

If contents equal, res will be true, otherwise false.

equal.str(actual, expected, done)

The only difference from equal is that String is treated as file contents rather than filename.