debian-mirror-gitlab/spec/javascripts/autosave_spec.js

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import $ from 'jquery';
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import Autosave from '~/autosave';
import AccessorUtilities from '~/lib/utils/accessor';
describe('Autosave', () => {
let autosave;
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const field = $('<textarea></textarea>');
const key = 'key';
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describe('class constructor', () => {
beforeEach(() => {
spyOn(AccessorUtilities, 'isLocalStorageAccessSafe').and.returnValue(true);
spyOn(Autosave.prototype, 'restore');
});
it('should set .isLocalStorageAvailable', () => {
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autosave = new Autosave(field, key);
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expect(AccessorUtilities.isLocalStorageAccessSafe).toHaveBeenCalled();
expect(autosave.isLocalStorageAvailable).toBe(true);
});
});
describe('restore', () => {
beforeEach(() => {
autosave = {
field,
key,
};
spyOn(window.localStorage, 'getItem');
});
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', () => {
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Autosave.prototype.restore.call(autosave);
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expect(window.localStorage.getItem).toHaveBeenCalledWith(key);
});
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it('triggers jquery event', () => {
spyOn(autosave.field, 'trigger').and.callThrough();
Autosave.prototype.restore.call(autosave);
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expect(field.trigger).toHaveBeenCalled();
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});
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it('triggers native event', done => {
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autosave.field.get(0).addEventListener('change', () => {
done();
});
Autosave.prototype.restore.call(autosave);
});
});
describe('if field gets deleted from DOM', () => {
beforeEach(() => {
autosave.field = $('.not-a-real-element');
});
it('does not trigger event', () => {
spyOn(field, 'trigger').and.callThrough();
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expect(field.trigger).not.toHaveBeenCalled();
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});
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});
});
describe('save', () => {
beforeEach(() => {
autosave = jasmine.createSpyObj('autosave', ['reset']);
autosave.field = field;
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field.val('value');
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spyOn(window.localStorage, 'setItem');
});
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('reset', () => {
beforeEach(() => {
autosave = {
key,
};
spyOn(window.localStorage, 'removeItem');
});
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);
});
});
});
});