need help creating a unit test in sinon

I'm new to unit testing and need some help in making a test pass!

disposeContainer() {
    const element = this.parentElement.querySelector('.programmes');
    if (element) {
        parentElement.removeChild(element);
    }
}

is the test i want to pass,

and here is my attempt!

it('should dispose a container', () => {
    section.show('citv');
    assert.equal(document.querySelector('.programmes ').remove);
});

not totally sure what i'm doing wrong (or right for that matter) havent spent a lot of time testing and would love for someone to explain to me the best practice here. t

thanks!