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import { before } from './before';
describe( 'before', () => {
beforeEach( () => {
document.body.textContent = '';
} );
test( 'can insert a node before the reference node.', () => {
const ref = document.createElement( 'a' );
const span1 = document.createElement( 'span' );
const span2 = document.createElement( 'span' );
document.body.appendChild( ref );
before( span1, ref );
expect( document.body.firstChild ).toBe( span1 );
expect( span1.nextSibling ).toBe( ref );
before( span2, ref );
expect( document.body.firstChild ).toBe( span1 );
expect( span1.nextSibling ).toBe( span2 );
expect( span2.nextSibling ).toBe( ref );
} );
test( 'can insert nodes before the reference node.', () => {
const ref = document.createElement( 'a' );
const span1 = document.createElement( 'span' );
const span2 = document.createElement( 'span' );
const span3 = document.createElement( 'span' );
document.body.appendChild( ref );
before( [ span1, span2, span3 ], ref );
expect( document.body.children[ 0 ] ).toBe( span1 );
expect( document.body.children[ 1 ] ).toBe( span2 );
expect( document.body.children[ 2 ] ).toBe( span3 );
expect( document.body.children[ 3 ] ).toBe( ref );
} );
} );