enzyme wrapper.find(..).simulate keypress doesnt trigger event listener

I am trying to press enter on one of the input boxes. Doing it manually triggers the event listener, however, while trying with enzyme, the event listener is not triggered. What am I doing wrong here?

Event Listener

this.input.addEventListener('keypress', function(event){
            debugger;
            onEnter(event);
        });

Enzyme

function setup(store, props) {
    return mount(<Provider store={store}>
            <component{...props}/>
        </Provider>
    );
}

beforeEach(() => {
        wrapper = setup(store, {});
        searchBar = wrapper.find('searchBar');
        searchInput = searchBar.find("input");
    });

it("when enter is pressed, event should be triggered", ()=> {
            let wait = false;
            runs(()=> {
                searchInput.simulate('change', {target: {value: 'helloWorld'}});
                searchInput.simulate('keyPress', {which: 13});
                setTimeout(()=> {
                    wait = true;
                }, 1000);
            })

            waitsFor(()=> {
                return wait;
            }, "", 1500);
        })