src/app/custom_modules/helpers/entity-validator.spec.ts

/*
******************************************************************************
* Copyright © 2018 PTA GmbH.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
*
*     http://www.eclipse.org/legal/epl-v10.html
*
******************************************************************************
*/

import { TestBed, inject } from '@angular/core/testing';
import { EntityValidator, ValidationFunc } from './entity-validator';
import { MessageService } from '../../services/message.service';
import { SessionContext } from '../../common/session-context';
import { MessageScopeEn } from '../../common/enums';

class BoolValidator extends ValidationFunc< boolean > {
    constructor( private result: boolean ) {
        super();
     }

    public validate( b: boolean, msgService: MessageService  ): boolean {
        if ( !this.result ) {
            msgService.emitWarning( 'Test message: ' + b, MessageScopeEn.local );
        }
        return this.result;
    }
}

describe('EntityValidator', () => {
    let messageService: MessageService;
    let sessionContext: SessionContext;

    beforeEach(() => {
        sessionContext = new SessionContext();
        messageService = new MessageService(sessionContext);

      TestBed.configureTestingModule({
      });
    });

    it('should work correctly with stop on first error', (() => {
        spyOn( messageService, 'emitWarning').and.callThrough();
        const validationList: ValidationFunc<boolean>[] = [
            new BoolValidator( true ),
            new BoolValidator( false ),
            new BoolValidator( false ) ];

        const validator = new EntityValidator<boolean>(messageService, validationList);
        validator.validateEntity( true, true );

        expect( messageService.emitWarning ).toHaveBeenCalledTimes(1);

    }));


    it('should work correctly with dont stop on first error', (() => {
        spyOn( messageService, 'emitWarning').and.callThrough();
        const validationList: ValidationFunc<boolean>[] = [
            new BoolValidator( true ),
            new BoolValidator( false ),
            new BoolValidator( false ) ];

        const validator = new EntityValidator<boolean>(messageService, validationList);
        validator.validateEntity( true, false );

        expect( messageService.emitWarning ).toHaveBeenCalledTimes(2);

    }));
});