@ts-kit/lit-framework/out-browser/lib/state.spec.js

Framework arouhd Lit-Html

import { ComponentState } from './state';
describe('state', () => {
    it('should correctly set the default state', () => {
        const state = new ComponentState(_ => { }, 'Hello');
        expect(state.currentState).toBe('Hello');
    });
    it('should correctly run the callback when there is a state change', done => {
        const state = new ComponentState(state => {
            expect(state).toBe('Hello World');
            done();
        }, 'Hello');
        state.setState(state => state + ' World');
    });
    it('should set state when state change returns a promise', done => {
        const state = new ComponentState(state => {
            expect(state).toBe('Hello World');
            done();
        }, 'Hello');
        state.setState(state => Promise.resolve(state + ' World'));
    });
});
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