使用 localstack 來開發 aws service 的整合測試

要使用這個測試，需要先啟動 localstack 的 docker

docker run -d -p 4567-4583:4567-4583 localstack/localstack

	/* eslint-env mocha */
	const Service = require('../../lib/service.js');
	//const expect = require('chai').expect;
	const { exec } = require('child_process');
	const sandbox = require('sinon').createSandbox();
	const sinon = require('sinon');
	const Promise = require('bluebird');
	describe('service.js', function () {
	this.timeout(120000);
	describe('test SQS integration', () => {
	const awsCli = 'aws --endpoint-url=http://localhost:4576';
	const sendMsg = 'sqs send-message --queue-url http://localhost:4576/queue/test-queue --message-body';
	before((done) => {
	// create queue in SQS
	const cmd = `${awsCli} sqs create-queue --queue-name test-queue`;
	exec(cmd, (error, stdout, stderr) => {
	if (error) {
	console.error(`error: ${error}`);
	return;
	}
	console.log(stdout);
	console.log(stderr);
	done();
	});
	});
	beforeEach((done) => {
	// insert msg in SQS
	const msg = {
	a: 1,
	b: 2,
	};
	const cmd = `${awsCli} ${sendMsg} '${JSON.stringify(msg)}'`;
	exec(cmd, (error, stdout, stderr) => {
	if (error) {
	console.error(`error: ${error}`);
	return;
	}
	console.log(stdout);
	console.log(stderr);
	done();
	});
	});
	afterEach(() => {
	sandbox.restore();
	});
	it('get msg from SQS and show msg', (done) => {
	const _handler = (msg) => {
	console.log('fake handler', msg);
	return Promise.resolve();
	};
	const callback = sandbox.spy(_handler);
	const config = {
	region : 'us-east-1',
	queueUrl: 'http://localhost:4576/queue/test-queue',
	fn : callback,
	};
	Service.createInstance(config);
	// delay to see the output
	setTimeout(() => {
	console.log('show call count:', callback.callCount);
	sinon.assert.calledOnce(callback);
	done();
	}, 5000);
	});
	});
	});

view raw service.test.js hosted with ❤ by GitHub