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+/**
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+ * @license Copyright (c) 2003-2019, 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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+import DocumentColorsCollection from '../src/documentcolorscollection';
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+import Collection from '@ckeditor/ckeditor5-utils/src/collection';
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+
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+describe( 'DocumentColorsCollection', () => {
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+ let documentColorsCollection;
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+
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+ const colors = [
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+ {
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+ color: '111',
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+ },
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+ {
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+ color: '222'
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+ },
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+ {
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+ color: '333'
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+ },
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+ {
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+ color: '444'
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+ }
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+ ];
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+
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+ beforeEach( () => {
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+ documentColorsCollection = new DocumentColorsCollection();
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+
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+ colors.forEach( item => {
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+ documentColorsCollection.add( item );
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+ } );
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+ } );
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+
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+ it( 'constructor()', () => {
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+ expect( documentColorsCollection ).to.be.instanceOf( DocumentColorsCollection );
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+ expect( documentColorsCollection ).to.be.instanceOf( Collection );
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+ } );
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+
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+ it( 'has observable "isEmpty" parameter', () => {
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+ expect( documentColorsCollection.isEmpty ).to.be.false;
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+
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+ documentColorsCollection.clear();
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+ expect( documentColorsCollection.isEmpty ).to.be.true;
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+
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+ documentColorsCollection.add( colors[ 0 ] );
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+ expect( documentColorsCollection.isEmpty ).to.be.false;
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+ } );
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+
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+ it( 'prevent of adding duplicated colors', () => {
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+ expect( documentColorsCollection.length ).to.equal( 4 );
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+
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+ documentColorsCollection.add( { color: '111' } );
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+ expect( documentColorsCollection.length ).to.equal( 4 );
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+ } );
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+} );
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