describe( 'statsVideoPlays()', () => { test( 'should return an empty array if not data is passed', () => { expect( normalizers.statsVideoPlays() ).toEqual( [] ); } ); expect( normalizers.statsVideoPlays( {}, { date: '2016-12-25' } ) ).toEqual( [] ); } ); expect( normalizers.statsVideoPlays( {}, { period: 'day' } ) ).toEqual( [] ); } ); normalizers.statsVideoPlays(