Boolean disjunction (OR) using mocha and chai

I have the following scenario in which I have to check that an URL was build correctly provided some query arguments. I do not expect the system to apply an specific order in the rendered URL, so I came with the following test case which I expected to work:

it('test that url is built correctly', function () {
    var args = {
        arg1: 'value1',
        arg1: 'value2'
    };

    var rendered_url = render_url(args);

    expect(rendered_url).to.equal('/my/url?arg1=value1&arg2=value2')
                     .or.to.equal('/my/url?arg2=value2&arg1=value1')
    ;
});

I was pretty surprised to the or chain to not exists as it makes the statement construction process tidy and cozy.

I know I can workaround this in many ways (for example, using satisfy), but I wonder:

• Whether I cannot find the pattern to achieve in a similar way what I want in the documentation(I have read it thoroughly)...


• ... or whether there exists a good reason to not include this construction in chai...


• ... and whether there exists any other library or script that provides that feature.