export default { props: { selected: [ 'two', 'three' ] }, ssrHtml: ` <select multiple value="two,three"> <option value="one">one</option> <option value="two">two</option> <option value="three">three</option> </select> <p>selected: two, three</p> `, html: ` <select multiple> <option value="one">one</option> <option value="two">two</option> <option value="three">three</option> </select> <p>selected: two, three</p> `, async test({ assert, component, target, window }) { const select = target.querySelector( 'select' ); const options = [ ...target.querySelectorAll( 'option' ) ]; const change = new window.Event( 'change' ); options[1].selected = false; await select.dispatchEvent( change ); assert.deepEqual( component.selected, [ 'three' ] ); assert.htmlEqual( target.innerHTML, ` <select multiple> <option value="one">one</option> <option value="two">two</option> <option value="three">three</option> </select> <p>selected: three</p> ` ); options[0].selected = true; await select.dispatchEvent( change ); assert.deepEqual( component.selected, [ 'one', 'three' ] ); assert.htmlEqual( target.innerHTML, ` <select multiple> <option value="one">one</option> <option value="two">two</option> <option value="three">three</option> </select> <p>selected: one, three</p> ` ); component.selected = [ 'one', 'two' ]; assert.ok( options[0].selected ); assert.ok( options[1].selected ); assert.ok( !options[2].selected ); assert.htmlEqual( target.innerHTML, ` <select multiple> <option value="one">one</option> <option value="two">two</option> <option value="three">three</option> </select> <p>selected: one, two</p> ` ); } };