org.eclipse.mdm.application/src/main/webapp/src/app/chartviewer/services/chart-viewer-data.service.spec.ts

/********************************************************************************
 * Copyright (c) 2015-2018 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 ********************************************************************************/

import { TestBed } from '@angular/core/testing';
import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';
import { BrowserDynamicTestingModule, platformBrowserDynamicTesting } from '@angular/platform-browser-dynamic/testing';
import { HttpErrorHandler } from '../../core/http-error-handler';
import { PropertyService } from '../../core/property.service';
import { Node } from '../../navigator/node';
import { MeasuredValues, NumberArray, MeasuredValuesResponse } from '../model/chartviewer.model';
import { ChartViewerDataService } from './chart-viewer-data.service';


let timeChannel = new MeasuredValues();
timeChannel.name = 'time';
timeChannel.unit = 's';
timeChannel.length = 5;
timeChannel.independent = true;
timeChannel.integerArray = new NumberArray();
timeChannel.integerArray.values = [1, 2, 3, 4, 5];
timeChannel.flags = [true, true, true, true, true];

let channel1 = new MeasuredValues();
channel1.name = 'channel1';
channel1.unit = 'm';
channel1.length = 5;
channel1.independent = true;
channel1.integerArray = new NumberArray();
channel1.integerArray.values = [3, 5, 4, 3, 2];
channel1.flags = [true, true, true, true, true];

export let data = new MeasuredValuesResponse();
data.values = [channel1, timeChannel];

describe('ChartViewerDataService', () => {
  let httpTestingController: HttpTestingController;
  let chartViewerDataService: ChartViewerDataService;

  beforeEach(() => {
    TestBed.resetTestEnvironment();
    TestBed.initTestEnvironment(BrowserDynamicTestingModule, platformBrowserDynamicTesting());
    TestBed.configureTestingModule({
      imports: [ HttpClientTestingModule ],
      providers: [ChartViewerDataService, HttpErrorHandler, PropertyService]
    });

    httpTestingController = TestBed.get(HttpTestingController);
    chartViewerDataService = TestBed.get(ChartViewerDataService);
  });

  it('can read values', () => {
    let node = new Node();
    node.sourceName = 'MDM';
    node.id = '1';

    chartViewerDataService.loadMeasuredValues(node, [node])
      .subscribe(channelGroups => expect(channelGroups).toEqual(data.values));

    const req = httpTestingController.expectOne('/org.eclipse.mdm.nucleus/mdm/environments/MDM/values/read');
    expect(req.request.method).toEqual('POST');
    req.flush(data);

    // Finally, assert that there are no outstanding requests.
    httpTestingController.verify();
  });

  it('can filter on data', () => {
    let node = new Node();
    node.sourceName = 'MDM';
    node.id = '1';

    chartViewerDataService.loadMeasuredValues(node, [node])
      .subscribe(channelGroups => expect(channelGroups.filter(c => c.name === 'time')).toEqual([timeChannel]));

    const req = httpTestingController.expectOne('/org.eclipse.mdm.nucleus/mdm/environments/MDM/values/read');
    expect(req.request.method).toEqual('POST');
    req.flush(data);

    // Finally, assert that there are no outstanding requests.
    httpTestingController.verify();
  });


  afterEach(() => {
    // After every test, assert that there are no more pending requests.
    httpTestingController.verify();
  });
});