text: var rewind = require('../'),
      fs = require('fs'),
      test = require('tape');
  
  function f(_) {
      return JSON.parse(fs.readFileSync(_, 'utf8'));
  }
  
  function fixture(t, name, title) {
      var result = rewind(f(name));
      var outputName = name.replace('.input.', '.output.');
      if (process.env.UPDATE) {
          fs.writeFileSync(outputName, JSON.stringify(result, 4));
      }
      var expect = f(outputName);
      t.deepEqual(result, expect, title);
  }
  
  test('rewind', function(t) {
      fixture(t, __dirname + '/fixture/featuregood.input.geojson', 'feature-good');
      fixture(t, __dirname + '/fixture/flip.input.geojson', 'flip');
      fixture(t, __dirname + '/fixture/collection.input.geojson', 'collection');
      fixture(t, __dirname + '/fixture/multipolygon.input.geojson', 'multipolygon');
      fixture(t, __dirname + '/fixture/rev.input.geojson', 'rev');
      t.end();
  });
  
  test('passthrough', function(t) {
      t.equal(rewind(null), null);
      t.end();
  });
  