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/* eslint-disable promise/catch-or-return */
import RecentSearchesService from '~/filtered_search/services/recent_searches_service';
import AccessorUtilities from '~/lib/utils/accessor';
describe('RecentSearchesService', () => {
let service;
beforeEach(() => {
service = new RecentSearchesService();
window.localStorage.removeItem(service.localStorageKey);
});
describe('fetch', () => {
beforeEach(() => {
spyOn(RecentSearchesService, 'isAvailable').and.returnValue(true);
});
it('should default to empty array', (done) => {
const fetchItemsPromise = service.fetch();
fetchItemsPromise
.then((items) => {
expect(items).toEqual([]);
done();
})
.catch((err) => {
done.fail('Shouldn\'t reject with empty localStorage key', err);
});
});
it('should reject when unable to parse', (done) => {
window.localStorage.setItem(service.localStorageKey, 'fail');
const fetchItemsPromise = service.fetch();
fetchItemsPromise
.catch((error) => {
expect(error).toEqual(jasmine.any(SyntaxError));
done();
});
});
it('should reject when service is unavailable', (done) => {
RecentSearchesService.isAvailable.and.returnValue(false);
service.fetch().catch((error) => {
expect(error).toEqual(jasmine.any(Error));
done();
});
});
it('should return items from localStorage', (done) => {
window.localStorage.setItem(service.localStorageKey, '["foo", "bar"]');
const fetchItemsPromise = service.fetch();
fetchItemsPromise
.then((items) => {
expect(items).toEqual(['foo', 'bar']);
done();
});
});
describe('if .isAvailable returns `false`', () => {
beforeEach(() => {
RecentSearchesService.isAvailable.and.returnValue(false);
spyOn(window.localStorage, 'getItem');
RecentSearchesService.prototype.fetch();
});
it('should not call .getItem', () => {
expect(window.localStorage.getItem).not.toHaveBeenCalled();
});
});
});
describe('setRecentSearches', () => {
beforeEach(() => {
spyOn(RecentSearchesService, 'isAvailable').and.returnValue(true);
});
it('should save things in localStorage', () => {
const items = ['foo', 'bar'];
service.save(items);
const newLocalStorageValue = window.localStorage.getItem(service.localStorageKey);
expect(JSON.parse(newLocalStorageValue)).toEqual(items);
});
});
describe('save', () => {
beforeEach(() => {
spyOn(window.localStorage, 'setItem');
spyOn(RecentSearchesService, 'isAvailable');
});
describe('if .isAvailable returns `true`', () => {
const searchesString = 'searchesString';
const localStorageKey = 'localStorageKey';
const recentSearchesService = {
localStorageKey,
};
beforeEach(() => {
RecentSearchesService.isAvailable.and.returnValue(true);
spyOn(JSON, 'stringify').and.returnValue(searchesString);
RecentSearchesService.prototype.save.call(recentSearchesService);
});
it('should call .setItem', () => {
expect(window.localStorage.setItem).toHaveBeenCalledWith(localStorageKey, searchesString);
});
});
describe('if .isAvailable returns `false`', () => {
beforeEach(() => {
RecentSearchesService.isAvailable.and.returnValue(false);
RecentSearchesService.prototype.save();
});
it('should not call .setItem', () => {
expect(window.localStorage.setItem).not.toHaveBeenCalled();
});
});
});
describe('isAvailable', () => {
let isAvailable;
beforeEach(() => {
spyOn(AccessorUtilities, 'isLocalStorageAccessSafe').and.callThrough();
isAvailable = RecentSearchesService.isAvailable();
});
it('should call .isLocalStorageAccessSafe', () => {
expect(AccessorUtilities.isLocalStorageAccessSafe).toHaveBeenCalled();
});
it('should return a boolean', () => {
expect(typeof isAvailable).toBe('boolean');
});
});
});
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