112 lines
2.5 KiB
JavaScript
112 lines
2.5 KiB
JavaScript
import tap from 'tap';
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import Updux from '.';
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import u from '@yanick/updeep';
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tap.test( 'subscriptions', async() => {
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const inc = action('inc');
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const set_copy = action('set_copy');
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const dux = new Updux({
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initial: {
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x: 0,
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copy: 0,
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},
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actions: {
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inc,
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},
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mutations: {
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inc: payload => u({ x: x => x + 1 }),
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set_copy: copy => u({ copy }),
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},
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});
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dux.addSubscription(store => (state, unsubscribe) => {
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if (state.x > 2) return unsubscribe();
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store.dispatch(set_copy(state.x));
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});
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const store = dux.createStore();
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store.dispatch(inc());
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tap.same(store.getState(), { x: 1, copy: 1 });
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store.dispatch(inc());
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store.dispatch(inc());
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tap.same(store.getState(), { x: 3, copy: 2 }, 'we unsubscribed');
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} );
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tap.test('subduxes subscriptions', async t => {
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const inc_top = action('inc_top');
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const inc_bar = action('inc_bar');
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const transform_bar = action('transform_bar');
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const bar = new Updux({
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initial: 'a',
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mutations: [
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[inc_bar, () => state => state + 'a'],
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[transform_bar, outcome => () => outcome],
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],
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subscriptions: [
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store => (state, unsubscribe) => {
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console.log({ state });
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if (state.length <= 2) return;
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unsubscribe();
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store.dispatch(transform_bar('look at ' + state));
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},
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],
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});
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const dux = new Updux({
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initial: {
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count: 0,
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},
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subduxes: {
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bar: bar.asDux,
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},
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mutations: [[inc_top, () => u({ count: count => count + 1 })]],
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effects: [
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[
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'*',
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() => next => action => {
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console.log('before ', action.type);
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next(action);
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console.log({ action });
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},
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],
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],
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subscriptions: [
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store => {
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let previous;
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return ({ count }) => {
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if (count !== previous) {
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previous = count;
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store.dispatch(inc_bar());
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}
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};
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},
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],
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});
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const store = dux.createStore();
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store.dispatch(inc_top());
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store.dispatch(inc_top());
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t.same(store.getState(), {
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count: 2,
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bar: 'look at look at aaa',
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});
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store.dispatch(inc_top());
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t.same(store.getState(), {
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count: 3,
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bar: 'look at look at aaaa',
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});
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});
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