/**
 * Copyright 2012-2017 Red Hat, Inc.
 *
 * Thermostat is distributed under the GNU General Public License,
 * version 2 or any later version (with a special exception described
 * below, commonly known as the "Classpath Exception").
 *
 * A copy of GNU General Public License (GPL) is included in this
 * distribution, in the file COPYING.
 *
 * Linking Thermostat code with other modules is making a combined work
 * based on Thermostat.  Thus, the terms and conditions of the GPL
 * cover the whole combination.
 *
 * As a special exception, the copyright holders of Thermostat give you
 * permission to link this code with independent modules to produce an
 * executable, regardless of the license terms of these independent
 * modules, and to copy and distribute the resulting executable under
 * terms of your choice, provided that you also meet, for each linked
 * independent module, the terms and conditions of the license of that
 * module.  An independent module is a module which is not derived from
 * or based on Thermostat code.  If you modify Thermostat, you may
 * extend this exception to your version of the software, but you are
 * not obligated to do so.  If you do not wish to do so, delete this
 * exception statement from your version.
 */

import big from 'big.js';
import { default as servicesModule, init as initServices } from 'shared/services/services.module.js';
import filtersModule from './filters.module.js';

describe('metricToBigInt filter', () => {

  let fn;
  beforeEach(() => {
    angular.mock.module(servicesModule);
    initServices();
    angular.mock.module(filtersModule);
    angular.mock.inject(metricToBigIntFilter => {
      'ngInject';
      fn = metricToBigIntFilter;
    });
  });

  it('should return the inner $numberLong property value', () => {
    fn({ $numberLong: '100' }).should.deepEqual(big('100'));
  });

  it('should divide by optional second argument', () => {
    fn({ $numberLong: '100' }, 4).should.deepEqual(big('25'));
  });

  it('should fail on non-objects', () => {
    fn('foo').should.deepEqual(big(undefined));
  });

  it('should convert plain numbers', () => {
    fn(100).should.deepEqual(big(100));
  });

  it('should fail on objects without $numberLong property', () => {
    fn({ foo: 'bar' }).should.deepEqual(big(undefined));
  });

  it('should treat undefined as a metric of 0', () => {
    fn(undefined).should.deepEqual(big('0'));
  });

});