describe('Is it symmetric', () => {

    it('Should be an array', () => {

        let returnValue = isSymmetric('21212');

        expect(returnValue).to.equal(false);

    });


    it('Should return equal', () => {

        let returnValue = isSymmetric(['a', 'b', 'a']);

        expect(returnValue).to.equal(true);

    });


    it('Should have array as an argument', () => {

       let returnValue = isSymmetric();

       expect(returnValue).to.equal(false);

    });


    it('Should have array as an argument2', () => {

        let returnValue = isSymmetric('sdada');

        expect(returnValue).to.equal(false);

     });


     it('Should have array as an argument3', () => {

        let returnValue = isSymmetric(213123);

        expect(returnValue).to.equal(false);

     });


});