init.test.js
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init.test.js
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	'use strict';

	describe( 'SpecialBlock init.js', () => {
	let targetInput, Vue;

	beforeEach( () => {
	document.body.innerHTML = '';
	const form = document.createElement( 'form' );
	form.className = 'mw-htmlform';
	document.body.appendChild( form );
	targetInput = document.createElement( 'input' );
	targetInput.id = 'mw-bi-target';
	form.appendChild( targetInput );
	mw.Api.prototype.loadMessagesIfMissing = jest.fn().mockResolvedValue( undefined );
	Vue = require( 'vue' );
	Vue.createMwApp = jest.fn().mockReturnValue( {
	use: jest.fn().mockReturnValue( {
	mount: jest.fn()
	} )
	} );
	} );

	afterEach( () => {
	jest.resetModules();
	} );

	it( 'should give the form the ID mw-block-form', () => {
	const mockConfig = {};
	mw.config.set = ( key, value ) => {
	mockConfig[ key ] = value;
	};
	require( '../../../resources/src/mediawiki.special.block/init.js' );
	expect( document.querySelector( '.mw-htmlform' ).id ).toBe( 'mw-block-form' );
	} );

	it( 'should do nothing if there is no mw-htmlform', () => {
	const htmlForm = document.querySelector( '.mw-htmlform' );
	htmlForm.className = 'not-mw-htmlform';
	require( '../../../resources/src/mediawiki.special.block/init.js' );
	expect( htmlForm.id ).not.toBe( 'mw-block-form' );
	expect( mw.Api.prototype.loadMessagesIfMissing ).not.toHaveBeenCalled();
	expect( Vue.createMwApp ).not.toHaveBeenCalled();
	} );
	} );