text: const describe = require('mocha').describe
  const it = require('mocha').it
  const assert = require('chai').assert
  
  const ValidationError = require('./ValidationError')
  
  describe('ValidationError', function () {
    it('should be instance of Error', function () {
      const testSubject = new ValidationError()
      assert.isOk(testSubject instanceof Error)
    })
  })
  