/*
 * Copyright (c) 2016 Internap.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy
 * of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
 * the License for the specific language governing permissions and limitations
 * under the License.
 */

import Neutron from '../../src/neutron.js';
import * as mockData from './helpers/data/neutron';
import fetchMock from 'fetch-mock';

describe('neutron', () => {

  afterEach(fetchMock.restore);

  it('should export a class', () => {
    const neutron = new Neutron(mockData.config);
    expect(neutron).toBeDefined();
  });

  it('should throw an error for an empty config', () => {
    try {
      const neutron = new Neutron();
      neutron.versions();
    } catch (e) {
      expect(e.message).toEqual('An endpoint configuration is required.');
    }
  });

  describe("networkList()", () => {
    let neutron = null;

    beforeEach(() => {
      fetchMock.mock(mockData.root());
      neutron = new Neutron(mockData.config);
    });

    it("should return the networks as an array.", (done) => {
      const token = 'test_token';

      fetchMock.mock(mockData.networkList(token));
      neutron
        .networkList(token)
        .then((networks) => {
          expect(networks.length).toBe(2);
          done();
        })
        .catch((error) => done.fail(error));
    });

    it("Should not cache its results", (done) => {
      const token = 'test_token';

      let mockOptions = mockData.networkList(token);
      fetchMock.mock(mockOptions);

      neutron
        .networkList(token)
        .then(() => {
          expect(fetchMock.calls(mockOptions.matcher).length).toEqual(1);
          return neutron.networkList(token);
        })
        .then(() => {
          expect(fetchMock.calls(mockOptions.matcher).length).toEqual(2);
          done();
        })
        .catch((error) => done.fail(error));
    });
  });
});