var babel = require("babel-core")
var fs = require("fs")
var path = require("path")
var fixturesDir = path.join(__dirname, "fixtures")

// var inputFilename = path.join(fixturesDir, "input.js")
// var expected = readFile(path.join(fixturesDir, "expected.js"))


var pluginPath = path.join(__dirname, '../../babel-plugin-add-react-displayname')
var assert = require('assert');
describe('add-react-displayname transform', function() {

  fs.readdirSync(fixturesDir).forEach(function (fixture) {
    var actual = transformFile(path.join(fixturesDir, fixture, 'input.js'))
    var expected = readFile((path.join(fixturesDir, fixture, 'expected.js')))

    it('transforms ' + path.basename(fixture), function() {
      assert.equal(actual, expected)
    })
  })
});

function readFile(filename) {
  var file = fs.readFileSync(filename, "utf8").trim()
  file = file.replace(/\r\n/g, "\n");
  return file;
}

function transformFile(filename) {
  return babel.transformFileSync(filename, {
    presets: ['react', 'stage-1'],
    plugins: [
      [pluginPath, {'knownComponents': ['Component5a', 'Component5b', 'Component5c']}],
      'transform-decorators-legacy',
    ]
  }).code
}