Tests technique to check for uniqueness works

unique_variant_name_test.js

require('./../lib/env');

Product.get('prototype-movie-2151', function(err, product) {
  if (err) throw err;
  console.log(testUniqueness(product, 1000, 1000, 300) ? 'passed' : 'failed');
});

function populateProductWithFakeUniqueVariants(product, count) {
  product.variants = {};
  for (var i = 0; i < count; i++) {
    var variantId = product.newVariantId();
    if (variantId === -1) {
      throw new Error('no unique id returned');
    }
    product.variants[variantId] = true;
  }
}

function testUniqueness(product, nTests, nUniqueTests, sampleSize) {
  // Tests
  for (var i = 0; i < nTests; i++) {
    populateProductWithFakeUniqueVariants(product, sampleSize);

    // Testing for new entries j times for each sample
    for (var j = 0; j < nUniqueTests; j++) {
      var variantId = product.newVariantId();

      if (variantId === -1 || product.variants[variantId]) return false;
    }
  }
  return true;
}