/** * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license */ import compareArrays from '../src/comparearrays'; describe( 'utils', () => { describe( 'compareArrays', () => { it( 'should return same flag, when arrays are same', () => { const a = [ 'abc', 0, 3 ]; const b = [ 'abc', 0, 3 ]; const result = compareArrays( a, b ); expect( result ).to.equal( 'same' ); } ); it( 'should return prefix flag, when all n elements of first array are same as n first elements of the second array', () => { const a = [ 'abc', 0 ]; const b = [ 'abc', 0, 3 ]; const result = compareArrays( a, b ); expect( result ).to.equal( 'prefix' ); } ); it( 'should return extension flag, when n first elements of first array are same as all elements of the second array', () => { const a = [ 'abc', 0, 3 ]; const b = [ 'abc', 0 ]; const result = compareArrays( a, b ); expect( result ).to.equal( 'extension' ); } ); it( 'should return index on which arrays differ, when arrays are not the same', () => { const a = [ 'abc', 0, 3 ]; const b = [ 'abc', 1, 3 ]; const result = compareArrays( a, b ); expect( result ).to.equal( 1 ); } ); } ); } );