99 lines
3.5 KiB
JavaScript
99 lines
3.5 KiB
JavaScript
import VisibilitySelect from '~/visibility_select';
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(() => {
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describe('VisibilitySelect', function () {
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const lockedElement = document.createElement('div');
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lockedElement.dataset.helpBlock = 'lockedHelpBlock';
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const checkedElement = document.createElement('div');
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checkedElement.dataset.description = 'checkedDescription';
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const mockElements = {
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container: document.createElement('div'),
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select: document.createElement('div'),
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'.help-block': document.createElement('div'),
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'.js-locked': lockedElement,
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'option:checked': checkedElement,
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};
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beforeEach(function () {
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spyOn(Element.prototype, 'querySelector').and.callFake(selector => mockElements[selector]);
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});
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describe('constructor', function () {
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beforeEach(function () {
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this.visibilitySelect = new VisibilitySelect(mockElements.container);
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});
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it('sets the container member', function () {
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expect(this.visibilitySelect.container).toEqual(mockElements.container);
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});
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it('queries and sets the helpBlock member', function () {
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expect(Element.prototype.querySelector).toHaveBeenCalledWith('.help-block');
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expect(this.visibilitySelect.helpBlock).toEqual(mockElements['.help-block']);
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});
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it('queries and sets the select member', function () {
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expect(Element.prototype.querySelector).toHaveBeenCalledWith('select');
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expect(this.visibilitySelect.select).toEqual(mockElements.select);
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});
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describe('if there is no container element provided', function () {
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it('throws an error', function () {
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expect(() => new VisibilitySelect()).toThrowError('VisibilitySelect requires a container element as argument 1');
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});
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});
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});
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describe('init', function () {
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describe('if there is a select', function () {
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beforeEach(function () {
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this.visibilitySelect = new VisibilitySelect(mockElements.container);
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});
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it('calls updateHelpText', function () {
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spyOn(VisibilitySelect.prototype, 'updateHelpText');
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this.visibilitySelect.init();
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expect(this.visibilitySelect.updateHelpText).toHaveBeenCalled();
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});
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it('adds a change event listener', function () {
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spyOn(this.visibilitySelect.select, 'addEventListener');
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this.visibilitySelect.init();
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expect(this.visibilitySelect.select.addEventListener.calls.argsFor(0)).toContain('change');
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});
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});
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describe('if there is no select', function () {
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beforeEach(function () {
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mockElements.select = undefined;
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this.visibilitySelect = new VisibilitySelect(mockElements.container);
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this.visibilitySelect.init();
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});
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it('updates the helpBlock text to the locked `data-help-block` messaged', function () {
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expect(this.visibilitySelect.helpBlock.textContent)
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.toEqual(lockedElement.dataset.helpBlock);
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});
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afterEach(function () {
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mockElements.select = document.createElement('div');
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});
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});
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});
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describe('updateHelpText', function () {
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beforeEach(function () {
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this.visibilitySelect = new VisibilitySelect(mockElements.container);
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this.visibilitySelect.init();
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});
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it('updates the helpBlock text to the selected options `data-description`', function () {
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expect(this.visibilitySelect.helpBlock.textContent)
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.toEqual(checkedElement.dataset.description);
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});
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});
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});
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})();
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