2017-09-10 17:25:29 +05:30
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import Api from '~/api';
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import UsersCache from '~/lib/utils/users_cache';
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describe('UsersCache', () => {
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const dummyUsername = 'win';
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2019-02-15 15:39:39 +05:30
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const dummyUserId = 123;
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const dummyUser = { name: 'has a farm', username: 'farmer' };
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const dummyUserStatus = 'my status';
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2017-09-10 17:25:29 +05:30
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beforeEach(() => {
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2018-12-13 13:39:08 +05:30
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UsersCache.internalStorage = {};
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2017-09-10 17:25:29 +05:30
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});
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describe('get', () => {
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it('returns undefined for empty cache', () => {
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2018-12-13 13:39:08 +05:30
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expect(UsersCache.internalStorage).toEqual({});
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2017-09-10 17:25:29 +05:30
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const user = UsersCache.get(dummyUsername);
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expect(user).toBe(undefined);
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});
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it('returns undefined for missing user', () => {
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UsersCache.internalStorage['no body'] = 'no data';
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const user = UsersCache.get(dummyUsername);
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expect(user).toBe(undefined);
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});
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it('returns matching user', () => {
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UsersCache.internalStorage[dummyUsername] = dummyUser;
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const user = UsersCache.get(dummyUsername);
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expect(user).toBe(dummyUser);
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});
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});
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describe('hasData', () => {
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it('returns false for empty cache', () => {
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2018-12-13 13:39:08 +05:30
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expect(UsersCache.internalStorage).toEqual({});
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2017-09-10 17:25:29 +05:30
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expect(UsersCache.hasData(dummyUsername)).toBe(false);
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});
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it('returns false for missing user', () => {
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UsersCache.internalStorage['no body'] = 'no data';
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expect(UsersCache.hasData(dummyUsername)).toBe(false);
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});
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it('returns true for matching user', () => {
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UsersCache.internalStorage[dummyUsername] = dummyUser;
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expect(UsersCache.hasData(dummyUsername)).toBe(true);
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});
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});
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describe('remove', () => {
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it('does nothing if cache is empty', () => {
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2018-12-13 13:39:08 +05:30
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expect(UsersCache.internalStorage).toEqual({});
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2017-09-10 17:25:29 +05:30
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UsersCache.remove(dummyUsername);
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2018-12-13 13:39:08 +05:30
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expect(UsersCache.internalStorage).toEqual({});
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2017-09-10 17:25:29 +05:30
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});
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it('does nothing if cache contains no matching data', () => {
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UsersCache.internalStorage['no body'] = 'no data';
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UsersCache.remove(dummyUsername);
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expect(UsersCache.internalStorage['no body']).toBe('no data');
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});
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it('removes matching data', () => {
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UsersCache.internalStorage[dummyUsername] = dummyUser;
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UsersCache.remove(dummyUsername);
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2018-12-13 13:39:08 +05:30
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expect(UsersCache.internalStorage).toEqual({});
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2017-09-10 17:25:29 +05:30
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});
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});
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describe('retrieve', () => {
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let apiSpy;
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beforeEach(() => {
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spyOn(Api, 'users').and.callFake((query, options) => apiSpy(query, options));
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});
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2018-12-13 13:39:08 +05:30
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it('stores and returns data from API call if cache is empty', done => {
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2017-09-10 17:25:29 +05:30
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apiSpy = (query, options) => {
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expect(query).toBe('');
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expect(options).toEqual({ username: dummyUsername });
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2018-03-17 18:26:18 +05:30
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return Promise.resolve({
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data: [dummyUser],
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});
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2017-09-10 17:25:29 +05:30
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};
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UsersCache.retrieve(dummyUsername)
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2018-12-13 13:39:08 +05:30
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.then(user => {
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expect(user).toBe(dummyUser);
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expect(UsersCache.internalStorage[dummyUsername]).toBe(dummyUser);
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})
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.then(done)
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.catch(done.fail);
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2017-09-10 17:25:29 +05:30
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});
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2018-12-13 13:39:08 +05:30
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it('returns undefined if Ajax call fails and cache is empty', done => {
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2017-09-10 17:25:29 +05:30
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const dummyError = new Error('server exploded');
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apiSpy = (query, options) => {
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expect(query).toBe('');
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expect(options).toEqual({ username: dummyUsername });
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return Promise.reject(dummyError);
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};
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UsersCache.retrieve(dummyUsername)
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2018-12-13 13:39:08 +05:30
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.then(user => fail(`Received unexpected user: ${JSON.stringify(user)}`))
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.catch(error => {
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expect(error).toBe(dummyError);
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})
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.then(done)
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.catch(done.fail);
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2017-09-10 17:25:29 +05:30
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});
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2018-12-13 13:39:08 +05:30
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it('makes no Ajax call if matching data exists', done => {
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2017-09-10 17:25:29 +05:30
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UsersCache.internalStorage[dummyUsername] = dummyUser;
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apiSpy = () => fail(new Error('expected no Ajax call!'));
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UsersCache.retrieve(dummyUsername)
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2018-12-13 13:39:08 +05:30
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.then(user => {
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expect(user).toBe(dummyUser);
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})
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.then(done)
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.catch(done.fail);
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2017-09-10 17:25:29 +05:30
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});
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});
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2019-02-15 15:39:39 +05:30
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describe('retrieveById', () => {
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let apiSpy;
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beforeEach(() => {
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spyOn(Api, 'user').and.callFake(id => apiSpy(id));
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});
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it('stores and returns data from API call if cache is empty', done => {
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apiSpy = id => {
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expect(id).toBe(dummyUserId);
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return Promise.resolve({
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data: dummyUser,
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});
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};
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UsersCache.retrieveById(dummyUserId)
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.then(user => {
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expect(user).toBe(dummyUser);
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expect(UsersCache.internalStorage[dummyUserId]).toBe(dummyUser);
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})
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.then(done)
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.catch(done.fail);
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});
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it('returns undefined if Ajax call fails and cache is empty', done => {
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const dummyError = new Error('server exploded');
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apiSpy = id => {
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expect(id).toBe(dummyUserId);
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return Promise.reject(dummyError);
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};
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UsersCache.retrieveById(dummyUserId)
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.then(user => fail(`Received unexpected user: ${JSON.stringify(user)}`))
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.catch(error => {
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expect(error).toBe(dummyError);
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})
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.then(done)
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.catch(done.fail);
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});
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it('makes no Ajax call if matching data exists', done => {
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UsersCache.internalStorage[dummyUserId] = dummyUser;
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apiSpy = () => fail(new Error('expected no Ajax call!'));
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UsersCache.retrieveById(dummyUserId)
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.then(user => {
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expect(user).toBe(dummyUser);
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})
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.then(done)
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.catch(done.fail);
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});
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});
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describe('retrieveStatusById', () => {
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let apiSpy;
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beforeEach(() => {
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spyOn(Api, 'userStatus').and.callFake(id => apiSpy(id));
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});
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it('stores and returns data from API call if cache is empty', done => {
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apiSpy = id => {
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expect(id).toBe(dummyUserId);
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return Promise.resolve({
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data: dummyUserStatus,
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});
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};
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UsersCache.retrieveStatusById(dummyUserId)
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.then(userStatus => {
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expect(userStatus).toBe(dummyUserStatus);
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expect(UsersCache.internalStorage[dummyUserId].status).toBe(dummyUserStatus);
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})
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.then(done)
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.catch(done.fail);
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});
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it('returns undefined if Ajax call fails and cache is empty', done => {
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const dummyError = new Error('server exploded');
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apiSpy = id => {
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expect(id).toBe(dummyUserId);
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return Promise.reject(dummyError);
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};
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UsersCache.retrieveStatusById(dummyUserId)
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.then(userStatus => fail(`Received unexpected user: ${JSON.stringify(userStatus)}`))
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.catch(error => {
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expect(error).toBe(dummyError);
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})
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.then(done)
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.catch(done.fail);
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});
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it('makes no Ajax call if matching data exists', done => {
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UsersCache.internalStorage[dummyUserId] = { status: dummyUserStatus };
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apiSpy = () => fail(new Error('expected no Ajax call!'));
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UsersCache.retrieveStatusById(dummyUserId)
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.then(userStatus => {
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expect(userStatus).toBe(dummyUserStatus);
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})
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.then(done)
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.catch(done.fail);
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});
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});
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2017-09-10 17:25:29 +05:30
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});
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