debian-mirror-gitlab/spec/frontend/autosave_spec.js
2020-05-25 16:23:42 +05:30

277 lines
7.5 KiB
JavaScript

import $ from 'jquery';
import { useLocalStorageSpy } from 'helpers/local_storage_helper';
import Autosave from '~/autosave';
import AccessorUtilities from '~/lib/utils/accessor';
describe('Autosave', () => {
useLocalStorageSpy();
let autosave;
const field = $('<textarea></textarea>');
const key = 'key';
const fallbackKey = 'fallbackKey';
const lockVersionKey = 'lockVersionKey';
const lockVersion = 1;
describe('class constructor', () => {
beforeEach(() => {
jest.spyOn(AccessorUtilities, 'isLocalStorageAccessSafe').mockReturnValue(true);
jest.spyOn(Autosave.prototype, 'restore').mockImplementation(() => {});
});
it('should set .isLocalStorageAvailable', () => {
autosave = new Autosave(field, key);
expect(AccessorUtilities.isLocalStorageAccessSafe).toHaveBeenCalled();
expect(autosave.isLocalStorageAvailable).toBe(true);
});
it('should set .isLocalStorageAvailable if fallbackKey is passed', () => {
autosave = new Autosave(field, key, fallbackKey);
expect(AccessorUtilities.isLocalStorageAccessSafe).toHaveBeenCalled();
expect(autosave.isLocalStorageAvailable).toBe(true);
});
it('should set .isLocalStorageAvailable if lockVersion is passed', () => {
autosave = new Autosave(field, key, null, lockVersion);
expect(AccessorUtilities.isLocalStorageAccessSafe).toHaveBeenCalled();
expect(autosave.isLocalStorageAvailable).toBe(true);
});
});
describe('restore', () => {
beforeEach(() => {
autosave = {
field,
key,
};
});
describe('if .isLocalStorageAvailable is `false`', () => {
beforeEach(() => {
autosave.isLocalStorageAvailable = false;
Autosave.prototype.restore.call(autosave);
});
it('should not call .getItem', () => {
expect(window.localStorage.getItem).not.toHaveBeenCalled();
});
});
describe('if .isLocalStorageAvailable is `true`', () => {
beforeEach(() => {
autosave.isLocalStorageAvailable = true;
});
it('should call .getItem', () => {
Autosave.prototype.restore.call(autosave);
expect(window.localStorage.getItem).toHaveBeenCalledWith(key);
});
it('triggers jquery event', () => {
jest.spyOn(autosave.field, 'trigger').mockImplementation(() => {});
Autosave.prototype.restore.call(autosave);
expect(field.trigger).toHaveBeenCalled();
});
it('triggers native event', () => {
const fieldElement = autosave.field.get(0);
const eventHandler = jest.fn();
fieldElement.addEventListener('change', eventHandler);
Autosave.prototype.restore.call(autosave);
expect(eventHandler).toHaveBeenCalledTimes(1);
fieldElement.removeEventListener('change', eventHandler);
});
});
describe('if field gets deleted from DOM', () => {
beforeEach(() => {
autosave.field = $('.not-a-real-element');
});
it('does not trigger event', () => {
jest.spyOn(field, 'trigger');
expect(field.trigger).not.toHaveBeenCalled();
});
});
});
describe('getSavedLockVersion', () => {
beforeEach(() => {
autosave = {
field,
key,
lockVersionKey,
};
});
describe('if .isLocalStorageAvailable is `false`', () => {
beforeEach(() => {
autosave.isLocalStorageAvailable = false;
Autosave.prototype.getSavedLockVersion.call(autosave);
});
it('should not call .getItem', () => {
expect(window.localStorage.getItem).not.toHaveBeenCalled();
});
});
describe('if .isLocalStorageAvailable is `true`', () => {
beforeEach(() => {
autosave.isLocalStorageAvailable = true;
});
it('should call .getItem', () => {
Autosave.prototype.getSavedLockVersion.call(autosave);
expect(window.localStorage.getItem).toHaveBeenCalledWith(lockVersionKey);
});
});
});
describe('save', () => {
beforeEach(() => {
autosave = { reset: jest.fn() };
autosave.field = field;
field.val('value');
});
describe('if .isLocalStorageAvailable is `false`', () => {
beforeEach(() => {
autosave.isLocalStorageAvailable = false;
Autosave.prototype.save.call(autosave);
});
it('should not call .setItem', () => {
expect(window.localStorage.setItem).not.toHaveBeenCalled();
});
});
describe('if .isLocalStorageAvailable is `true`', () => {
beforeEach(() => {
autosave.isLocalStorageAvailable = true;
Autosave.prototype.save.call(autosave);
});
it('should call .setItem', () => {
expect(window.localStorage.setItem).toHaveBeenCalled();
});
});
});
describe('save with lockVersion', () => {
beforeEach(() => {
autosave = {
field,
key,
lockVersionKey,
lockVersion,
isLocalStorageAvailable: true,
};
});
describe('lockVersion is valid', () => {
it('should call .setItem', () => {
Autosave.prototype.save.call(autosave);
expect(window.localStorage.setItem).toHaveBeenCalledWith(lockVersionKey, lockVersion);
});
it('should call .setItem when version is 0', () => {
autosave.lockVersion = 0;
Autosave.prototype.save.call(autosave);
expect(window.localStorage.setItem).toHaveBeenCalledWith(
lockVersionKey,
autosave.lockVersion,
);
});
});
describe('lockVersion is invalid', () => {
it('should not call .setItem with lockVersion', () => {
delete autosave.lockVersion;
Autosave.prototype.save.call(autosave);
expect(window.localStorage.setItem).not.toHaveBeenCalledWith(
lockVersionKey,
autosave.lockVersion,
);
});
});
});
describe('reset', () => {
beforeEach(() => {
autosave = {
key,
lockVersionKey,
};
});
describe('if .isLocalStorageAvailable is `false`', () => {
beforeEach(() => {
autosave.isLocalStorageAvailable = false;
Autosave.prototype.reset.call(autosave);
});
it('should not call .removeItem', () => {
expect(window.localStorage.removeItem).not.toHaveBeenCalled();
});
});
describe('if .isLocalStorageAvailable is `true`', () => {
beforeEach(() => {
autosave.isLocalStorageAvailable = true;
Autosave.prototype.reset.call(autosave);
});
it('should call .removeItem', () => {
expect(window.localStorage.removeItem).toHaveBeenCalledWith(key);
expect(window.localStorage.removeItem).toHaveBeenCalledWith(lockVersionKey);
});
});
});
describe('restore with fallbackKey', () => {
beforeEach(() => {
autosave = {
field,
key,
fallbackKey,
isLocalStorageAvailable: true,
};
});
it('should call .getItem', () => {
Autosave.prototype.restore.call(autosave);
expect(window.localStorage.getItem).toHaveBeenCalledWith(fallbackKey);
});
it('should call .setItem for key and fallbackKey', () => {
Autosave.prototype.save.call(autosave);
expect(window.localStorage.setItem).toHaveBeenCalledTimes(2);
});
it('should call .removeItem for key and fallbackKey', () => {
Autosave.prototype.reset.call(autosave);
expect(window.localStorage.removeItem).toHaveBeenCalledWith(fallbackKey);
expect(window.localStorage.removeItem).toHaveBeenCalledWith(key);
});
});
});