type State = {
    foo: string
}

let state: State | undefined;

let result: boolean = false;

if (state) {

    state.foo === "sdfdsf"
    switch (true) {

        case state.foo === 'test':
        case state.foo === 'test':
            result = true;
            break;

        // Object is possibly 'undefined'.ts(2532)
        case state.foo === 'test':
        case state.foo === 'test':
            result = true;
            break;

        // Object is possibly 'undefined'.ts(2532)
        case state && state.foo === 'test':
        case state.foo === 'test':
            result = true;
            break;

        // Object is possibly 'undefined'.ts(2532)
        case state ? state.foo === 'test' : false:
        case state.foo === 'test':
            result = true;
            break;

    }

}