The BotTester framework can inspect session state

BotTesterCanInspectSession.ts

const { BotTester } = require('bot-tester');
const { expect } = require('chai');

describe('Bot Tester', () => {
  it('can inspect session state', () => {
        bot.dialog('/', [(session) => {
            new Prompts.text(session, 'What would you like to set data to?');
        }, (session, results) => {
            session.userData = { data: results.response };
            session.save();
        }]);

        return new BotTester(bot)
            .sendMessageToBot('Start this thing!',  'What would you like to set data to?')
            .sendMessageToBotAndExpectSaveWithNoResponse('This is data!')
            .checkSession((session) => {
                expect(session.userData).not.to.be.null;
                expect(session.userData.data).to.be.equal('This is data!');
            })
            .runTest();
    });
});