old_contents: var str2color = require("./");
  var test = require("tape");
  
  test('str2color', function (assert) {
      assert.plan(1);
      assert.strictEqual(str2color('foo'), '#FFCC00');
  });
  
new_contents: var str2color = require("./");
  var test = require("tape");
  
  test('str2color', function (assert) {
      assert.plan(4);
      assert.strictEqual(str2color(), '#5A1000');
      assert.strictEqual(str2color(''), '#5A1000');
      assert.strictEqual(str2color(' '), '#5A1000');
      assert.strictEqual(str2color('hola'), '#212B78');
  });
  
subject: Add tests