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codemirror.test.js
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codemirror.test.js
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/* eslint-disable-next-line n/no-missing-require */
const { EditorView } = require( 'ext.CodeMirror.v6.lib' );
const CodeMirror = require( '../../resources/codemirror.js' );
const $textarea = $( '<textarea>' ),
cm = new CodeMirror( $textarea );
describe( 'initialize', () => {
const initializeWithForm = () => {
const form = document.createElement( 'form' );
form.append( cm.$textarea[ 0 ] );
cm.$textarea[ 0 ].form.addEventListener = jest.fn();
cm.initialize();
};
it( 'should create the EditorState with the value of the textarea', () => {
cm.$textarea.val( 'foobar' );
cm.$textarea.textSelection = jest.fn().mockReturnValue( 'foobar' );
cm.initialize();
expect( cm.view.state.doc.toString() ).toStrictEqual( 'foobar' );
} );
it( 'should set the height to the same as the textarea', () => {
$textarea.css( 'height', '100px' );
cm.initialize();
// 100 + 6 (padding/border) = 106
expect( $( cm.view.dom ).height() ).toStrictEqual( 106 );
} );
it( 'should instantiate an EditorView and add .cm-editor to the DOM', () => {
initializeWithForm();
expect( cm.view ).toBeInstanceOf( EditorView );
expect( cm.view.dom ).toBeInstanceOf( HTMLDivElement );
expect( cm.$textarea[ 0 ].nextSibling ).toStrictEqual( cm.view.dom );
} );
it( 'should hide the native textarea', () => {
cm.initialize();
expect( cm.$textarea[ 0 ].style.display ).toStrictEqual( 'none' );
} );
it( 'should add a listener for form submission', () => {
initializeWithForm();
expect( cm.$textarea[ 0 ].form.addEventListener ).toHaveBeenCalledTimes( 1 );
} );
it( 'should retain the mw-editfont- class present on the textarea', () => {
cm.$textarea.addClass( 'mw-editfont-monospace' );
cm.initialize();
expect( cm.view.dom.querySelector( '.cm-content' ).classList ).toContain( 'mw-editfont-monospace' );
} );
it( "should copy the 'dir' and 'lang' attributes of the textarea to .cm-editor", () => {
cm.$textarea.prop( 'dir', 'rtl' )
.prop( 'lang', 'ar' );
cm.initialize();
expect( cm.view.dom.getAttribute( 'dir' ) ).toStrictEqual( 'rtl' );
expect( cm.view.dom.getAttribute( 'lang' ) ).toStrictEqual( 'ar' );
} );
} );
describe( 'logUsage', () => {
it( 'should track usage of CodeMirror with the correct data', () => {
CodeMirror.logUsage( {
editor: 'wikitext',
enabled: true,
toggled: false
} );
expect( mw.track ).toBeCalledWith( 'event.CodeMirrorUsage', {
editor: 'wikitext',
enabled: true,
// eslint-disable-next-line camelcase
session_token: 'abc',
toggled: false,
// eslint-disable-next-line camelcase
user_edit_count_bucket: '1000+ edits',
// eslint-disable-next-line camelcase
user_id: 123
} );
} );
} );
describe( 'setCodeMirrorPreference', () => {
beforeEach( () => {
cm.initialize();
} );
it( 'should save using the API with the correct value', () => {
CodeMirror.setCodeMirrorPreference( true );
expect( mw.Api.prototype.saveOption ).toHaveBeenCalledWith( 'usecodemirror', 1 );
expect( mw.user.options.set ).toHaveBeenCalledWith( 'usecodemirror', 1 );
} );
it( 'should not save preferences if the user is not named', () => {
mw.user.isNamed = jest.fn().mockReturnValue( false );
CodeMirror.setCodeMirrorPreference( true );
expect( mw.Api.prototype.saveOption ).toHaveBeenCalledTimes( 0 );
expect( mw.user.options.set ).toHaveBeenCalledTimes( 0 );
} );
} );

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