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d8187123af
fixes https://github.com/TryGhost/Team/issues/2332 Saves events in the database and collects error information. Do note that we can emit the same events multiple times, and as a result out of order. That means we should correctly handle that a delivered event might be fired after a permanent failure. So a delivered event is ignored if the email is already marked as failed. Also delivered_at is reset to null when we receive a permanent failure.
449 lines
17 KiB
JavaScript
449 lines
17 KiB
JavaScript
const assert = require('assert');
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const nock = require('nock');
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const sinon = require('sinon');
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// module under test
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const MailgunClient = require('../');
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// Some sample Mailgun API options we might want to use
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const MAILGUN_OPTIONS = {
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event: 'delivered OR opened OR failed OR unsubscribed OR complained',
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limit: 300,
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tags: 'bulk-email'
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};
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describe('MailgunClient', function () {
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let config, settings;
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beforeEach(function () {
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// options objects that can be stubbed or spied
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config = {get() {}};
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settings = {get() {}};
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});
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afterEach(function () {
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sinon.restore();
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});
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it('exports a number for BATCH_SIZE', function () {
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assert(typeof MailgunClient.BATCH_SIZE === 'number');
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});
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it('can connect via config', function () {
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const configStub = sinon.stub(config, 'get');
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configStub.withArgs('bulkEmail').returns({
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mailgun: {
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apiKey: 'apiKey',
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domain: 'domain.com',
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baseUrl: 'https://api.mailgun.net/v3'
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}
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});
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const mailgunClient = new MailgunClient({config, settings});
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assert.equal(mailgunClient.isConfigured(), true);
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});
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it('can connect via settings', function () {
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const settingsStub = sinon.stub(settings, 'get');
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settingsStub.withArgs('mailgun_api_key').returns('settingsApiKey');
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settingsStub.withArgs('mailgun_domain').returns('settingsdomain.com');
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settingsStub.withArgs('mailgun_base_url').returns('https://example.com/v3');
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const mailgunClient = new MailgunClient({config, settings});
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assert.equal(mailgunClient.isConfigured(), true);
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});
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it('cannot configure Mailgun if config/settings missing', function () {
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const mailgunClient = new MailgunClient({config, settings});
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assert.equal(mailgunClient.isConfigured(), false);
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});
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it('respects changes in settings', async function () {
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const settingsStub = sinon.stub(settings, 'get');
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settingsStub.withArgs('mailgun_api_key').returns('settingsApiKey');
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settingsStub.withArgs('mailgun_domain').returns('settingsdomain.com');
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settingsStub.withArgs('mailgun_base_url').returns('https://api.mailgun.net');
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const eventsMock1 = nock('https://api.mailgun.net')
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.get('/v3/settingsdomain.com/events')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/empty.json`, {
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'Content-Type': 'application/json'
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});
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const mailgunClient = new MailgunClient({config, settings});
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await mailgunClient.fetchEvents(MAILGUN_OPTIONS, () => {});
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settingsStub.withArgs('mailgun_api_key').returns('settingsApiKey2');
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settingsStub.withArgs('mailgun_domain').returns('settingsdomain2.com');
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settingsStub.withArgs('mailgun_base_url').returns('https://api.mailgun.net');
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const eventsMock2 = nock('https://api.mailgun.net')
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.get('/v3/settingsdomain2.com/events')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/empty.json`, {
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'Content-Type': 'application/json'
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});
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await mailgunClient.fetchEvents(MAILGUN_OPTIONS, () => {});
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assert.equal(eventsMock1.isDone(), true);
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assert.equal(eventsMock2.isDone(), true);
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});
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it('prioritises config values over settings', async function () {
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const configStub = sinon.stub(config, 'get');
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configStub.withArgs('bulkEmail').returns({
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mailgun: {
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apiKey: 'apiKey',
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domain: 'configdomain.com',
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baseUrl: 'https://api.mailgun.net'
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}
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});
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const settingsStub = sinon.stub(settings, 'get');
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settingsStub.withArgs('mailgun_api_key').returns('settingsApiKey');
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settingsStub.withArgs('mailgun_domain').returns('settingsdomain.com');
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settingsStub.withArgs('mailgun_base_url').returns('https://api.mailgun.net');
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const configApiMock = nock('https://api.mailgun.net')
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.get('/v3/configdomain.com/events')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/empty.json`, {
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'Content-Type': 'application/json'
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});
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const settingsApiMock = nock('https://api.mailgun.net')
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.get('/v3/settingsdomain.com/events')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/empty.json`, {
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'Content-Type': 'application/json'
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});
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const mailgunClient = new MailgunClient({config, settings});
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await mailgunClient.fetchEvents(MAILGUN_OPTIONS, () => {});
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assert.equal(configApiMock.isDone(), true);
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assert.equal(settingsApiMock.isDone(), false);
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});
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describe('send()', function () {
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it('does not send if not configured', async function () {
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const mailgunClient = new MailgunClient({config, settings});
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const response = await mailgunClient.send({}, {}, []);
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assert.strictEqual(response, null);
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});
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});
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describe('fetchEvents()', function () {
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it('does not fetch if not configured', async function () {
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const batchHandler = sinon.spy();
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const mailgunClient = new MailgunClient({config, settings});
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const events = await mailgunClient.fetchEvents(MAILGUN_OPTIONS, batchHandler);
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assert.equal(events.length, 0);
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assert.equal(batchHandler.callCount, 0);
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});
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it('fetches from now and works backwards', async function () {
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const configStub = sinon.stub(config, 'get');
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configStub.withArgs('bulkEmail').returns({
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mailgun: {
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apiKey: 'apiKey',
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domain: 'domain.com',
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baseUrl: 'https://api.mailgun.net/v3'
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}
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});
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const firstPageMock = nock('https://api.mailgun.net')
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.get('/v3/domain.com/events')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/all-1.json`, {
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'Content-Type': 'application/json'
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});
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const secondPageMock = nock('https://api.mailgun.net')
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.get('/v3/domain.com/events/all-1-next')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/all-2.json`, {
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'Content-Type': 'application/json'
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});
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// requests continue until an empty items set is returned
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nock('https://api.mailgun.net')
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.get('/v3/domain.com/events/all-2-next')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/empty.json`, {
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'Content-Type': 'application/json'
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});
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const batchHandler = sinon.spy();
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const mailgunClient = new MailgunClient({config, settings});
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await mailgunClient.fetchEvents(MAILGUN_OPTIONS, batchHandler);
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assert.equal(firstPageMock.isDone(), true);
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assert.equal(secondPageMock.isDone(), true);
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assert.equal(batchHandler.callCount, 2); // one per page
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});
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it('fetches with a limit', async function () {
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const configStub = sinon.stub(config, 'get');
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configStub.withArgs('bulkEmail').returns({
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mailgun: {
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apiKey: 'apiKey',
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domain: 'domain.com',
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baseUrl: 'https://api.mailgun.net/v3'
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}
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});
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const firstPageMock = nock('https://api.mailgun.net')
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.get('/v3/domain.com/events')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/all-1.json`, {
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'Content-Type': 'application/json'
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});
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const secondPageMock = nock('https://api.mailgun.net')
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.get('/v3/domain.com/events/all-1-next')
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.replyWithFile(200, `${__dirname}/fixtures/all-2.json`, {
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'Content-Type': 'application/json'
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});
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// requests continue until an empty items set is returned
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nock('https://api.mailgun.net')
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.get('/v3/domain.com/events/all-2-next')
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.replyWithFile(200, `${__dirname}/fixtures/empty.json`, {
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'Content-Type': 'application/json'
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});
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const batchHandler = sinon.stub().returnsArg(0);
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const maxEvents = 3;
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const mailgunClient = new MailgunClient({config, settings});
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const events = await mailgunClient.fetchEvents(MAILGUN_OPTIONS, batchHandler, {maxEvents});
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assert.equal(events.length, 4); // `maxEvents` is 3 but the first page contains 4 events
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assert.equal(firstPageMock.isDone(), true);
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assert.equal(secondPageMock.isDone(), false);
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assert.equal(batchHandler.callCount, 1);
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});
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it('supports EU Mailgun domain', async function () {
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const configStub = sinon.stub(config, 'get');
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configStub.withArgs('bulkEmail').returns({
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mailgun: {
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apiKey: 'apiKey',
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domain: 'domain.com',
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baseUrl: 'https://api.eu.mailgun.net/v3'
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}
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});
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const firstPageMock = nock('https://api.eu.mailgun.net')
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.get('/v3/domain.com/events')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/all-1-eu.json`, {
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'Content-Type': 'application/json'
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});
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const secondPageMock = nock('https://api.eu.mailgun.net')
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.get('/v3/domain.com/events/all-1-next')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/all-2-eu.json`, {
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'Content-Type': 'application/json'
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});
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// requests continue until an empty items set is returned
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nock('https://api.eu.mailgun.net')
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.get('/v3/domain.com/events/all-2-next')
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.query(MAILGUN_OPTIONS)
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.replyWithFile(200, `${__dirname}/fixtures/empty.json`, {
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'Content-Type': 'application/json'
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});
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const batchHandler = sinon.spy();
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const mailgunClient = new MailgunClient({config, settings});
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await mailgunClient.fetchEvents(MAILGUN_OPTIONS, batchHandler);
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assert.equal(firstPageMock.isDone(), true);
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assert.equal(secondPageMock.isDone(), true);
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assert.equal(batchHandler.callCount, 2); // one per page
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});
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});
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describe('normalizeEvent()', function () {
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it('works', function () {
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const event = {
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id: 'pl271FzxTTmGRW8Uj3dUWw',
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event: 'testEvent',
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severity: 'testSeverity',
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recipient: 'testRecipient',
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timestamp: 1614275662,
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message: {
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headers: {
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'message-id': 'testProviderId'
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}
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},
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'user-variables': {
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'email-id': 'testEmailId'
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}
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};
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const mailgunClient = new MailgunClient({config, settings});
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const result = mailgunClient.normalizeEvent(event);
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assert.deepStrictEqual(result, {
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type: 'testEvent',
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severity: 'testSeverity',
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recipientEmail: 'testRecipient',
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emailId: 'testEmailId',
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providerId: 'testProviderId',
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timestamp: new Date('2021-02-25T17:54:22.000Z'),
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error: null,
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id: 'pl271FzxTTmGRW8Uj3dUWw'
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});
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});
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it('works for errors', function () {
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const event = {
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event: 'failed',
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id: 'pl271FzxTTmGRW8Uj3dUWw',
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'log-level': 'error',
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severity: 'permanent',
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reason: 'suppress-bounce',
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envelope: {
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sender: 'john@example.org',
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transport: 'smtp',
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targets: 'joan@example.com'
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},
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flags: {
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'is-routed': false,
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'is-authenticated': true,
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'is-system-test': false,
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'is-test-mode': false
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},
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'delivery-status': {
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'attempt-no': 1,
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message: '',
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code: 605,
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description: 'Not delivering to previously bounced address',
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'session-seconds': 0.0
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},
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message: {
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headers: {
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to: 'joan@example.com',
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'message-id': 'testProviderId',
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from: 'john@example.org',
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subject: 'Test Subject'
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},
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attachments: [],
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size: 867
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},
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storage: {
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url: 'https://se.api.mailgun.net/v3/domains/example.org/messages/eyJwI...',
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key: 'eyJwI...'
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},
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recipient: 'testRecipient',
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'recipient-domain': 'mailgun.com',
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campaigns: [],
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tags: [],
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'user-variables': {},
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timestamp: 1614275662
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};
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const mailgunClient = new MailgunClient({config, settings});
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const result = mailgunClient.normalizeEvent(event);
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assert.deepStrictEqual(result, {
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type: 'failed',
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severity: 'permanent',
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recipientEmail: 'testRecipient',
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emailId: undefined,
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providerId: 'testProviderId',
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timestamp: new Date('2021-02-25T17:54:22.000Z'),
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error: {
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code: 605,
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enhancedCode: null,
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message: 'Not delivering to previously bounced address'
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},
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id: 'pl271FzxTTmGRW8Uj3dUWw'
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});
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});
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it('works for enhanced errors', function () {
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const event = {
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event: 'failed',
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id: 'pl271FzxTTmGRW8Uj3dUWw',
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'log-level': 'error',
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severity: 'permanent',
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reason: 'suppress-bounce',
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envelope: {
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sender: 'john@example.org',
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transport: 'smtp',
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targets: 'joan@example.com'
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},
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flags: {
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'is-routed': false,
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'is-authenticated': true,
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'is-system-test': false,
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'is-test-mode': false
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},
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'delivery-status': {
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tls: true,
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'mx-host': 'hotmail-com.olc.protection.outlook.com',
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code: 451,
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description: '',
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'session-seconds': 0.7517080307006836,
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utf8: true,
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'retry-seconds': 600,
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'enhanced-code': '4.7.652',
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'attempt-no': 1,
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message: '4.7.652 The mail server [xxx.xxx.xxx.xxx] has exceeded the maximum number of connections.',
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'certificate-verified': true
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},
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message: {
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headers: {
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to: 'joan@example.com',
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'message-id': 'testProviderId',
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from: 'john@example.org',
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subject: 'Test Subject'
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},
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attachments: [],
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size: 867
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},
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storage: {
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url: 'https://se.api.mailgun.net/v3/domains/example.org/messages/eyJwI...',
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key: 'eyJwI...'
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},
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recipient: 'testRecipient',
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'recipient-domain': 'mailgun.com',
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campaigns: [],
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tags: [],
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'user-variables': {},
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timestamp: 1614275662
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};
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const mailgunClient = new MailgunClient({config, settings});
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const result = mailgunClient.normalizeEvent(event);
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assert.deepStrictEqual(result, {
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type: 'failed',
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severity: 'permanent',
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recipientEmail: 'testRecipient',
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emailId: undefined,
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providerId: 'testProviderId',
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timestamp: new Date('2021-02-25T17:54:22.000Z'),
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error: {
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code: 451,
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enhancedCode: '4.7.652',
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message: '4.7.652 The mail server [xxx.xxx.xxx.xxx] has exceeded the maximum number of connections.'
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},
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id: 'pl271FzxTTmGRW8Uj3dUWw'
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});
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});
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});
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});
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