471 lines
14 KiB
JavaScript
471 lines
14 KiB
JavaScript
import { editor as monacoEditor, languages as monacoLanguages, Uri } from 'monaco-editor';
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import waitForPromises from 'helpers/wait_for_promises';
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import Editor from '~/editor/editor_lite';
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import { DEFAULT_THEME, themes } from '~/ide/lib/themes';
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import { EDITOR_LITE_INSTANCE_ERROR_NO_EL, URI_PREFIX } from '~/editor/constants';
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describe('Base editor', () => {
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let editorEl;
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let editor;
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const blobContent = 'Foo Bar';
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const blobPath = 'test.md';
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const blobGlobalId = 'snippet_777';
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const fakeModel = { foo: 'bar', dispose: jest.fn() };
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beforeEach(() => {
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setFixtures('<div id="editor" data-editor-loading></div>');
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editorEl = document.getElementById('editor');
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editor = new Editor();
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});
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afterEach(() => {
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editor.dispose();
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editorEl.remove();
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});
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const createUri = (...paths) => Uri.file([URI_PREFIX, ...paths].join('/'));
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it('initializes Editor with basic properties', () => {
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expect(editor).toBeDefined();
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expect(editor.instances).toEqual([]);
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});
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it('removes `editor-loading` data attribute from the target DOM element', () => {
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editor.createInstance({ el: editorEl });
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expect(editorEl.dataset.editorLoading).toBeUndefined();
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});
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describe('instance of the Editor', () => {
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let modelSpy;
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let instanceSpy;
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let setModel;
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let dispose;
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beforeEach(() => {
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setModel = jest.fn();
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dispose = jest.fn();
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modelSpy = jest.spyOn(monacoEditor, 'createModel').mockImplementation(() => fakeModel);
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instanceSpy = jest.spyOn(monacoEditor, 'create').mockImplementation(() => ({
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setModel,
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dispose,
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onDidDispose: jest.fn(),
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}));
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});
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it('throws an error if no dom element is supplied', () => {
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expect(() => {
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editor.createInstance();
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}).toThrow(EDITOR_LITE_INSTANCE_ERROR_NO_EL);
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expect(modelSpy).not.toHaveBeenCalled();
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expect(instanceSpy).not.toHaveBeenCalled();
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expect(setModel).not.toHaveBeenCalled();
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});
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it('creates model to be supplied to Monaco editor', () => {
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editor.createInstance({ el: editorEl, blobPath, blobContent, blobGlobalId: '' });
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expect(modelSpy).toHaveBeenCalledWith(blobContent, undefined, createUri(blobPath));
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expect(setModel).toHaveBeenCalledWith(fakeModel);
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});
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it('initializes the instance on a supplied DOM node', () => {
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editor.createInstance({ el: editorEl });
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expect(editor.editorEl).not.toBe(null);
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expect(instanceSpy).toHaveBeenCalledWith(editorEl, expect.anything());
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});
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it('with blobGlobalId, creates model with id in uri', () => {
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editor.createInstance({ el: editorEl, blobPath, blobContent, blobGlobalId });
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expect(modelSpy).toHaveBeenCalledWith(
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blobContent,
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undefined,
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createUri(blobGlobalId, blobPath),
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);
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});
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it('initializes instance with passed properties', () => {
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const instanceOptions = {
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foo: 'bar',
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};
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editor.createInstance({
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el: editorEl,
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...instanceOptions,
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});
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expect(instanceSpy).toHaveBeenCalledWith(editorEl, expect.objectContaining(instanceOptions));
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});
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it('disposes instance when the editor is disposed', () => {
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editor.createInstance({ el: editorEl, blobPath, blobContent, blobGlobalId });
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expect(dispose).not.toHaveBeenCalled();
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editor.dispose();
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expect(dispose).toHaveBeenCalled();
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});
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});
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describe('multiple instances', () => {
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let instanceSpy;
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let inst1Args;
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let inst2Args;
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let editorEl1;
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let editorEl2;
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let inst1;
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let inst2;
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const readOnlyIndex = '68'; // readOnly option has the internal index of 68 in the editor's options
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beforeEach(() => {
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setFixtures('<div id="editor1"></div><div id="editor2"></div>');
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editorEl1 = document.getElementById('editor1');
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editorEl2 = document.getElementById('editor2');
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inst1Args = {
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el: editorEl1,
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blobGlobalId,
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};
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inst2Args = {
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el: editorEl2,
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blobContent,
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blobPath,
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blobGlobalId,
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};
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editor = new Editor();
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instanceSpy = jest.spyOn(monacoEditor, 'create');
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});
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afterEach(() => {
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editor.dispose();
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});
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it('can initialize several instances of the same editor', () => {
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editor.createInstance(inst1Args);
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expect(editor.instances).toHaveLength(1);
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editor.createInstance(inst2Args);
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expect(instanceSpy).toHaveBeenCalledTimes(2);
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expect(editor.instances).toHaveLength(2);
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});
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it('sets independent models on independent instances', () => {
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inst1 = editor.createInstance(inst1Args);
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inst2 = editor.createInstance(inst2Args);
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const model1 = inst1.getModel();
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const model2 = inst2.getModel();
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expect(model1).toBeDefined();
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expect(model2).toBeDefined();
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expect(model1).not.toEqual(model2);
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});
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it('shares global editor options among all instances', () => {
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editor = new Editor({
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readOnly: true,
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});
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inst1 = editor.createInstance(inst1Args);
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expect(inst1.getOption(readOnlyIndex)).toBe(true);
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inst2 = editor.createInstance(inst2Args);
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expect(inst2.getOption(readOnlyIndex)).toBe(true);
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});
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it('allows overriding editor options on the instance level', () => {
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editor = new Editor({
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readOnly: true,
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});
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inst1 = editor.createInstance({
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...inst1Args,
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readOnly: false,
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});
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expect(inst1.getOption(readOnlyIndex)).toBe(false);
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});
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it('disposes instances and relevant models independently from each other', () => {
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inst1 = editor.createInstance(inst1Args);
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inst2 = editor.createInstance(inst2Args);
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expect(inst1.getModel()).not.toBe(null);
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expect(inst2.getModel()).not.toBe(null);
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expect(editor.instances).toHaveLength(2);
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expect(monacoEditor.getModels()).toHaveLength(2);
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inst1.dispose();
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expect(inst1.getModel()).toBe(null);
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expect(inst2.getModel()).not.toBe(null);
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expect(editor.instances).toHaveLength(1);
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expect(monacoEditor.getModels()).toHaveLength(1);
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});
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});
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describe('implementation', () => {
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let instance;
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beforeEach(() => {
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instance = editor.createInstance({ el: editorEl, blobPath, blobContent });
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});
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it('correctly proxies value from the model', () => {
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expect(instance.getValue()).toBe(blobContent);
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});
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it('is capable of changing the language of the model', () => {
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// ignore warnings and errors Monaco posts during setup
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// (due to being called from Jest/Node.js environment)
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jest.spyOn(console, 'warn').mockImplementation(() => {});
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jest.spyOn(console, 'error').mockImplementation(() => {});
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const blobRenamedPath = 'test.js';
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expect(instance.getModel().getLanguageIdentifier().language).toBe('markdown');
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instance.updateModelLanguage(blobRenamedPath);
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expect(instance.getModel().getLanguageIdentifier().language).toBe('javascript');
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});
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it('falls back to plaintext if there is no language associated with an extension', () => {
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const blobRenamedPath = 'test.myext';
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const spy = jest.spyOn(console, 'error').mockImplementation(() => {});
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instance.updateModelLanguage(blobRenamedPath);
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expect(spy).not.toHaveBeenCalled();
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expect(instance.getModel().getLanguageIdentifier().language).toBe('plaintext');
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});
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});
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describe('extensions', () => {
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let instance;
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const foo1 = jest.fn();
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const foo2 = jest.fn();
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const bar = jest.fn();
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const MyExt1 = {
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foo: foo1,
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};
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const MyExt2 = {
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bar,
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};
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const MyExt3 = {
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foo: foo2,
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};
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describe('basic functionality', () => {
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beforeEach(() => {
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instance = editor.createInstance({ el: editorEl, blobPath, blobContent });
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});
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it('is extensible with the extensions', () => {
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expect(instance.foo).toBeUndefined();
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instance.use(MyExt1);
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expect(instance.foo).toEqual(foo1);
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});
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it('does not fail if no extensions supplied', () => {
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const spy = jest.spyOn(global.console, 'error');
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instance.use();
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expect(spy).not.toHaveBeenCalled();
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});
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it('is extensible with multiple extensions', () => {
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expect(instance.foo).toBeUndefined();
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expect(instance.bar).toBeUndefined();
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instance.use([MyExt1, MyExt2]);
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expect(instance.foo).toEqual(foo1);
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expect(instance.bar).toEqual(bar);
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});
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it('uses the last definition of a method in case of an overlap', () => {
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instance.use([MyExt1, MyExt2, MyExt3]);
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expect(instance).toEqual(
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expect.objectContaining({
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foo: foo2,
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bar,
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}),
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);
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});
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it('correctly resolves references withing extensions', () => {
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const FunctionExt = {
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inst() {
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return this;
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},
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mod() {
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return this.getModel();
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},
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};
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instance.use(FunctionExt);
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expect(instance.inst()).toEqual(editor.instances[0]);
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});
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});
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describe('extensions as an instance parameter', () => {
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let editorExtensionSpy;
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const instanceConstructor = (extensions = []) => {
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return editor.createInstance({
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el: editorEl,
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blobPath,
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blobContent,
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blobGlobalId,
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extensions,
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});
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};
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beforeEach(() => {
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editorExtensionSpy = jest.spyOn(Editor, 'pushToImportsArray').mockImplementation(arr => {
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arr.push(
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Promise.resolve({
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default: {},
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}),
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);
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});
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});
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it.each([undefined, [], [''], ''])(
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'does not fail and makes no fetch if extensions is %s',
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() => {
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instance = instanceConstructor(null);
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expect(editorExtensionSpy).not.toHaveBeenCalled();
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},
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);
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it.each`
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type | value | callsCount
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${'simple string'} | ${'foo'} | ${1}
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${'combined string'} | ${'foo, bar'} | ${2}
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${'array of strings'} | ${['foo', 'bar']} | ${2}
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`('accepts $type as an extension parameter', ({ value, callsCount }) => {
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instance = instanceConstructor(value);
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expect(editorExtensionSpy).toHaveBeenCalled();
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expect(editorExtensionSpy.mock.calls).toHaveLength(callsCount);
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});
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it.each`
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desc | path | expectation
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${'~/editor'} | ${'foo'} | ${'~/editor/foo'}
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${'~/CUSTOM_PATH with leading slash'} | ${'/my_custom_path/bar'} | ${'~/my_custom_path/bar'}
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${'~/CUSTOM_PATH without leading slash'} | ${'my_custom_path/delta'} | ${'~/my_custom_path/delta'}
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`('fetches extensions from $desc path', ({ path, expectation }) => {
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instance = instanceConstructor(path);
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expect(editorExtensionSpy).toHaveBeenCalledWith(expect.any(Array), expectation);
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});
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it('emits editor-ready event after all extensions were applied', async () => {
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const calls = [];
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const eventSpy = jest.fn().mockImplementation(() => {
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calls.push('event');
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});
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const useSpy = jest.spyOn(editor, 'use').mockImplementation(() => {
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calls.push('use');
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});
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editorEl.addEventListener('editor-ready', eventSpy);
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instance = instanceConstructor('foo, bar');
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await waitForPromises();
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expect(useSpy.mock.calls).toHaveLength(2);
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expect(calls).toEqual(['use', 'use', 'event']);
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});
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});
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describe('multiple instances', () => {
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let inst1;
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let inst2;
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let editorEl1;
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let editorEl2;
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beforeEach(() => {
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setFixtures('<div id="editor1"></div><div id="editor2"></div>');
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editorEl1 = document.getElementById('editor1');
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editorEl2 = document.getElementById('editor2');
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inst1 = editor.createInstance({ el: editorEl1, blobPath: `foo-${blobPath}` });
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inst2 = editor.createInstance({ el: editorEl2, blobPath: `bar-${blobPath}` });
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});
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afterEach(() => {
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editor.dispose();
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editorEl1.remove();
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editorEl2.remove();
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});
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it('extends all instances if no specific instance is passed', () => {
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editor.use(MyExt1);
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expect(inst1.foo).toEqual(foo1);
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expect(inst2.foo).toEqual(foo1);
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});
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it('extends specific instance if it has been passed', () => {
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editor.use(MyExt1, inst2);
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expect(inst1.foo).toBeUndefined();
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expect(inst2.foo).toEqual(foo1);
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});
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});
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});
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describe('languages', () => {
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it('registers custom languages defined with Monaco', () => {
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expect(monacoLanguages.getLanguages()).toEqual(
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expect.arrayContaining([
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expect.objectContaining({
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id: 'vue',
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}),
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]),
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);
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});
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});
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describe('syntax highlighting theme', () => {
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let themeDefineSpy;
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let themeSetSpy;
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let defaultScheme;
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beforeEach(() => {
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themeDefineSpy = jest.spyOn(monacoEditor, 'defineTheme').mockImplementation(() => {});
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themeSetSpy = jest.spyOn(monacoEditor, 'setTheme').mockImplementation(() => {});
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defaultScheme = window.gon.user_color_scheme;
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});
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afterEach(() => {
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window.gon.user_color_scheme = defaultScheme;
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});
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it('sets default syntax highlighting theme', () => {
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const expectedTheme = themes.find(t => t.name === DEFAULT_THEME);
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editor = new Editor();
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expect(themeDefineSpy).toHaveBeenCalledWith(DEFAULT_THEME, expectedTheme.data);
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expect(themeSetSpy).toHaveBeenCalledWith(DEFAULT_THEME);
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});
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it('sets correct theme if it is set in users preferences', () => {
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const expectedTheme = themes.find(t => t.name !== DEFAULT_THEME);
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expect(expectedTheme.name).not.toBe(DEFAULT_THEME);
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window.gon.user_color_scheme = expectedTheme.name;
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editor = new Editor();
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expect(themeDefineSpy).toHaveBeenCalledWith(expectedTheme.name, expectedTheme.data);
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expect(themeSetSpy).toHaveBeenCalledWith(expectedTheme.name);
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});
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it('falls back to default theme if a selected one is not supported yet', () => {
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const name = 'non-existent-theme';
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const nonExistentTheme = { name };
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window.gon.user_color_scheme = nonExistentTheme.name;
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editor = new Editor();
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expect(themeDefineSpy).not.toHaveBeenCalled();
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expect(themeSetSpy).toHaveBeenCalledWith(DEFAULT_THEME);
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});
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});
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});
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