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liza/test/system/EventMediatorTest.ts

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TypeScript

/**
* Event logger test
*
* Copyright (C) 2010-2019 R-T Specialty, LLC.
*
* This file is part of the Liza Data Collection Framework.
*
* liza is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import { EventMediator as Sut } from '../../src/system/EventMediator';
import { context } from '../../src/error/ContextError';
import { EventEmitter } from "events";
import { expect } from 'chai';
import { PsrLogger } from '../../src/system/PsrLogger';
describe( 'system.EventLogger captures and logs events', () =>
{
it( 'document-processed triggers log#notice', () =>
{
let method_called = false;
const event_id = 'document-processed';
const emitter = new EventEmitter();
const log = createMockLogger();
log.notice = ( _str: string ) => { method_called = true; };
new Sut( log, emitter );
emitter.emit( event_id );
expect( method_called ).to.be.true;
} );
it( 'delta-publish triggers log#notice', () =>
{
let method_called = false;
const event_id = 'delta-publish';
const emitter = new EventEmitter();
const log = createMockLogger();
log.notice = ( _str: string ) => { method_called = true; };
new Sut( log, emitter );
emitter.emit( event_id );
expect( method_called ).to.be.true;
} );
it( 'amqp-conn-warn triggers log#warning', () =>
{
let method_called = false;
const event_id = 'amqp-conn-warn';
const emitter = new EventEmitter();
const log = createMockLogger();
log.warning = ( _str: string ) => { method_called = true; };
new Sut( log, emitter );
emitter.emit( event_id );
expect( method_called ).to.be.true;
} );
it( 'amqp-reconnect triggers log#warning', () =>
{
let method_called = false;
const event_id = 'amqp-reconnect';
const emitter = new EventEmitter();
const log = createMockLogger();
log.warning = ( _str: string ) => { method_called = true; };
new Sut( log, emitter );
emitter.emit( event_id );
expect( method_called ).to.be.true;
} );
it( 'context and stack are retrieved from error', () =>
{
let method_called = false;
const event_id = 'error';
const err_msg = 'Foo';
const stub_err = new Error( err_msg );
const emitter = new EventEmitter();
const log = createMockLogger();
const err_context = { bar: 'baz' };
const expected_context = {
bar: err_context.bar,
stack: stub_err.stack,
};
log.error = ( str: string, context: any ) =>
{
expect( str ).to.equal( err_msg );
expect( context ).to.deep.equal( expected_context );
method_called = true;
};
new Sut( log, emitter );
emitter.emit( event_id, context( stub_err, err_context ) );
expect( method_called ).to.be.true;
} );
} );
function createMockLogger(): PsrLogger
{
return <PsrLogger>{
debug( _msg: string | object, _context: object ){},
info( _msg: string | object, _context: object ){},
notice( _msg: string | object, _context: object ){ console.log( 'asdasd msg: ', _msg ); },
warning( _msg: string | object, _context: object ){},
error( _msg: string | object, _context: object ){},
critical( _msg: string | object, _context: object ){},
alert( _msg: string | object, _context: object ){},
emergency( _msg: string | object, _context: object ){},
log( _level: any, _msg: string | object, _context: object ){},
};
}