pie-lib/packages/controller-utils/src/__tests__/persistence.test.js at dabe80923567799b4e81ca120426eae248bb9497 · pie-framework/pie-lib · GitHub

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import { getShuffledChoices, lockChoices } from '../persistence';

describe('getShuffledChoices', () => {
  let choices, session, updateSession, key;

  beforeEach(() => {
    updateSession = jest.fn().mockResolvedValue([]);
    session = {
      id: '1',
      element: 'element',
    };
    choices = [
      {
        value: 1,
      },
      {
        value: 2,
      },
    ];
    key = 'value';
  });

  describe('0 key', () => {
    it('calls update session w/ 0 as a key', async () => {
      const result = await getShuffledChoices([{ value: 0 }, { value: 1 }], session, updateSession, 'value');
      expect(updateSession).toHaveBeenCalledWith(session.id, session.element, {
        shuffledValues: expect.arrayContaining([0, 1]),
      });
    });
  });

  describe('handles null values in session', () => {
    beforeEach(async () => {
      const result = await getShuffledChoices(choices, { ...session, shuffledValues: [null] }, updateSession, 'value');
    });

    it('calls updateSession w/ new shuffle cos [null] is treated as empty', () => {
      expect(updateSession).toHaveBeenCalledWith(session.id, session.element, {
        shuffledValues: expect.arrayContaining([1, 2]),
      });
    });
  });
  describe('bad shuffle generation does not call updateSession', () => {
    beforeEach(async () => {
      const result = await getShuffledChoices(choices, {}, updateSession, 'foo');
    });
    it('does not call update session', () => {
      expect(updateSession).not.toHaveBeenCalled();
    });
  });

  describe('session does not exist', () => {
    it('returns undefined for empty session', async () => {
      const result = await getShuffledChoices(choices, undefined, updateSession, key);
      expect(result).toEqual(undefined);
    });
  });

  describe('session exists', () => {
    it('returns compact choices if session has shuffledValues', async () => {
      session = { shuffledValues: [2, 1] };
      const result = await getShuffledChoices(choices, session, updateSession, key);
      expect(result).toEqual(expect.arrayContaining(choices));
    });

    it('returns shuffled choices if updateSession is a function', async () => {
      session = {};
      updateSession = jest.fn().mockResolvedValue();
      const result = await getShuffledChoices(choices, session, updateSession, key);
      expect(result).toEqual(expect.arrayContaining(choices));
    });

    it('calls updateSession as expected if updateSession is a function', async () => {
      session = { id: '1', element: 'pie-element' };
      await getShuffledChoices(choices, session, updateSession, key);
      expect(updateSession).toHaveBeenCalledWith('1', 'pie-element', {
        shuffledValues: expect.arrayContaining([1, 2]),
      });
    });
  });
});

describe('lockChoices', () => {
  const env = (lockChoiceOrder, role = 'student') => ({
    '@pie-element': { lockChoiceOrder },
    role,
  });
  const session = (shuffledValues) => ({ shuffledValues });
  it.each`
    modelLock    | session            | env                         | expected
    ${true}      | ${session()}       | ${env(true)}                | ${true}
    ${true}      | ${session()}       | ${env(false)}               | ${true}
    ${false}     | ${session()}       | ${env(true)}                | ${true}
    ${false}     | ${session()}       | ${env(false)}               | ${false}
    ${false}     | ${session()}       | ${undefined}                | ${false}
    ${false}     | ${undefined}       | ${undefined}                | ${false}
    ${undefined} | ${session()}       | ${env(false)}               | ${false}
    ${undefined} | ${session()}       | ${env(undefined)}           | ${false}
    ${false}     | ${session()}       | ${env(false, 'instructor')} | ${false}
    ${false}     | ${session([0, 1])} | ${env(false, 'instructor')} | ${false}
    ${false}     | ${undefined}       | ${env(false, 'instructor')} | ${false}
  `('1. model.lockChoiceOrder: $modelLock, $session, $env => $expected', ({ modelLock, session, env, expected }) => {
    const model = { lockChoiceOrder: modelLock };
    const result = lockChoices(model, session, env);
    expect(result).toEqual(expected);
  });
});

describe('lockChoices mod', () => {
  const env = (lockChoiceOrder, role = 'student') => ({
    '@pie-element': { lockChoiceOrder },
    role,
  });
  const session = (answers = ['foo', 'bar']) => ({ answers });
  it.each`
    modelLock    | session      | env                             | expected
    ${true}      | ${session()} | ${env(true)}                    | ${true}
    ${true}      | ${session()} | ${env(false)}                   | ${true}
    ${false}     | ${session()} | ${env(true)}                    | ${true}
    ${false}     | ${session()} | ${env(false)}                   | ${false}
    ${undefined} | ${session()} | ${env(true)}                    | ${true}
    ${undefined} | ${session()} | ${env(undefined)}               | ${false}
    ${undefined} | ${session()} | ${env(undefined, 'instructor')} | ${false}
  `('2. model.lockChoiceOrder: $modelLock, $session, $env => $expected', ({ modelLock, session, env, expected }) => {
    const model = { lockChoiceOrder: modelLock };
    const result = lockChoices(model, session, env);
    expect(result).toEqual(expected);
  });
});

describe('lockChoices', () => {
  const env = (lockChoiceOrder, role = 'student') => ({
    '@pie-element': { lockChoiceOrder },
    role,
  });
  const session = (shuffledValues) => ({ shuffledValues, answers: ['foo', 'bar'] });
  it.each`
    modelLock    | session      | env                             | expected
    ${true}      | ${session()} | ${env(true)}                    | ${true}
    ${true}      | ${session()} | ${env(false)}                   | ${true}
    ${false}     | ${session()} | ${env(true)}                    | ${true}
    ${false}     | ${session()} | ${env(false)}                   | ${false}
    ${undefined} | ${session()} | ${env(true)}                    | ${true}
    ${undefined} | ${session()} | ${env(undefined)}               | ${false}
    ${undefined} | ${session()} | ${env(undefined, 'instructor')} | ${false}
  `('3. model.lockChoiceOrder: $modelLock, $env => $expected', ({ modelLock, session, env, expected }) => {
    const model = { lockChoiceOrder: modelLock };
    const result = lockChoices(model, session, env);
    expect(result).toEqual(expected);
  });
});