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+/**
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+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
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+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
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+ */
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+
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+/* globals document */
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+
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+import View from '@ckeditor/ckeditor5-engine/src/view/view';
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+import MouseSelectionObserver from '../../src/tableselection/mouseselectionobserver';
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+
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+describe( 'MouseSelectionObserver', () => {
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+ let view, viewDocument, observer;
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+
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+ beforeEach( () => {
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+ view = new View();
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+ viewDocument = view.document;
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+ observer = view.addObserver( MouseSelectionObserver );
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+ } );
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+
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+ afterEach( () => {
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+ view.destroy();
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+ } );
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+
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+ it( 'should define domEventTypes', () => {
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+ expect( observer.domEventType ).to.deep.equal( [
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+ 'mousemove',
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+ 'mouseup',
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+ 'mouseleave'
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+ ] );
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+ } );
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+
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+ describe( 'onDomEvent', () => {
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+ for ( const eventName of [ 'mousemove', 'mouseup', 'mouseleave' ] ) {
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+ it( `should fire ${ eventName } with the right event data`, () => {
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+ const spy = sinon.spy();
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+
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+ viewDocument.on( eventName, spy );
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+
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+ observer.onDomEvent( { type: eventName, target: document.body } );
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+
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+ expect( spy.calledOnce ).to.be.true;
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+
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+ const data = spy.args[ 0 ][ 1 ];
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+ expect( data.domTarget ).to.equal( document.body );
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+ } );
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+ }
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+ } );
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+} );
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