The code defines a test suite for a "calendar service" using the describe function, which includes a test named "should list events from around today" that asserts an array of events is not empty. The test logic involves calling two functions, correctCalendarId and listEvents, with specific parameters to retrieve a list of events around today.

Cell 3

var importer = require('../Core');
var {
    listEvents,
    correctCalendarId
} = importer.import("list events",
"import google calendar api",
"lookup calendar name");

var options = {};
describe('calendar service', () => {
    beforeEach(() => {
    })
    
    it('should list events from around today', (done) => {
        return correctCalendarId(Object.assign(options, {
            calendarId: 'commands'
        }))
        .then(() => listEvents({
            auth: options.auth,
            calendarId: options.calendarId,
            timeMin: '12 AM today',
            timeMax: 'next hour today'
        }))
        .then(r => {
            assert(r.length > 0)
            done()
        })
    })
})

import { listEvents, getCalendarId, importGoogleCalendarApi } from '../Core';

describe('calendar service', () => {
    let calendarId, auth;

    beforeEach(() => {
        // Mock the Google Calendar API
        const importer = importGoogleCalendarApi();
        ({ calendarId, auth } = importer.import(['lookup calendar name', 'import google calendar api']));
    });

    it('should list events from around today', (done) => {
        // Ensure calendarId is correct
        getCalendarId({ calendarId })
           .then((options) => {
                // List events for today
                return listEvents({
                    auth,
                    calendarId: options.calendarId,
                    timeMin: '12 AM today',
                    timeMax: 'next hour today'
                });
            })
           .then((events) => {
                // Assert at least one event
                expect(events.length).toBe GreaterThan(0);
                done();
            })
           .catch((error) => {
                // Handle any errors
                done.fail(error);
            });
    });
});

Code Breakdown

Importing Modules

The code starts by importing a module named importer from the ../Core directory. The importer module is then used to import specific functions.

var importer = require('../Core');
var {
    listEvents,
    correctCalendarId
} = importer.import([
    'list events',
    'import google calendar api',
    'lookup calendar name'
]);

Defining Test Options

The code then defines an empty object options that will be used to store test options.

var options = {};

Defining a Test Suite

The code defines a test suite for the "calendar service" using the describe function.

describe('calendar service', () => {
  //...
});

Defining a Before Each Hook

The beforeEach hook is defined but left empty. This hook is executed before each test in the test suite.

beforeEach(() => {
  // empty hook
});

Defining a Test

The code defines a test named "should list events from around today" using the it function. This test expects the done callback to be called after the test is complete.

it('should list events from around today', (done) => {
  //...
});

Test Logic

The test logic is as follows:

1. It calls the correctCalendarId function with the options object and an additional property calendarId set to 'commands'. This function returns a promise.
2. It then calls the listEvents function with the auth property from the options object, the calendarId property from the options object, and specific time parameters.
3. The listEvents function returns a promise that resolves to an array of events.
4. The test then asserts that the array of events is not empty.
5. Finally, the done callback is called to indicate that the test is complete.

it('should list events from around today', (done) => {
  return correctCalendarId(Object.assign(options, {
    calendarId: 'commands'
  }))
 .then(() => listEvents({
    auth: options.auth,
    calendarId: options.calendarId,
    timeMin: '12 AM today',
    timeMax: 'next hour today'
  }))
 .then(r => {
    assert(r.length > 0)
    done()
  })
})