81 lines
2.0 KiB
TypeScript
81 lines
2.0 KiB
TypeScript
import { test, expect } from 'vitest';
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import Updux, { createAction } from './index.js';
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test('set a mutation', () => {
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const dux = new Updux({
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initialState: 'potato',
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actions: {
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foo: (x) => ({ x }),
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bar: 0,
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},
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});
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let didIt = false;
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dux.addMutation(dux.actions.foo, (payload, action) => () => {
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didIt = true;
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expect(payload).toEqual({ x: 'hello ' });
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expect(action).toEqual(dux.actions.foo('hello '));
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return payload.x + action.type;
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});
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const result = dux.reducer(undefined, dux.actions.foo('hello '));
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expect(didIt).toBeTruthy();
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expect(result).toEqual('hello foo');
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});
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test('catch-all mutation', () => {
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const dux = new Updux({
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initialState: '',
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});
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dux.addMutation(
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() => true,
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(payload, action) => () => 'got it',
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);
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expect(dux.reducer(undefined, { type: 'foo' })).toEqual('got it');
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});
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test('default mutation', () => {
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const dux = new Updux({
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initialState: '',
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actions: {
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foo: 0,
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},
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});
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dux.addMutation(dux.actions.foo, () => () => 'got it');
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dux.addDefaultMutation((_payload, action) => () => action.type);
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expect(dux.reducer(undefined, { type: 'foo' })).toEqual('got it');
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expect(dux.reducer(undefined, { type: 'bar' })).toEqual('bar');
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});
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test('mutation of a subdux', () => {
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const baz = createAction('baz');
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const noop = createAction('noop');
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const stopit = createAction('stopit');
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const bar = new Updux({
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initialState: 0,
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actions: {
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baz,
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stopit,
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},
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});
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bar.addMutation(baz, () => () => 1);
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bar.addMutation(stopit, () => () => 2);
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const foo = new Updux({
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subduxes: { bar },
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});
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foo.addMutation(stopit, () => (state) => state, true);
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expect(foo.reducer(undefined, noop())).toHaveProperty('bar', 0);
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expect(foo.reducer(undefined, baz())).toHaveProperty('bar', 1);
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expect(foo.reducer(undefined, stopit())).toHaveProperty('bar', 0);
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});
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