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jssm

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A Javascript state machine with a simple API. Well tested, and typed with Flowtype. MIT License.

stonecypher.github.io/jssm/

StoneCypher/jssm

30 lines (18 loc) • 1.26 kB
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/* eslint-disable max-len */ import {describe} from 'ava-spec'; const jssm = require('../../../build/jssm.es5.js'), sm = jssm.sm; describe('reject and accept correctly', async it => { const machine = sm` a ~> b -> c; `; it('starts in a', t => t.is('a', machine.state() )); it('rejects transition to b', t => t.is(false, machine.transition('b') )); it('still in a', t => t.is('a', machine.state() )); it('rejects transition to c', t => t.is(false, machine.transition('c') )); it('still in a', t => t.is('a', machine.state() )); it('rejects forced transition to c', t => t.is(false, machine.force_transition('c') )); it('still in a', t => t.is('a', machine.state() )); it('accepts forced transition to b', t => t.is(true, machine.force_transition('b') )); it('now in b', t => t.is('b', machine.state() )); it('accepts transition to c', t => t.is(true, machine.transition('c') )); it('now in c', t => t.is('c', machine.state() )); });