@div-int/typedfsm/dist/test/ghosts.test.js

A TypeScript finite state machine library

'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
const typedfsm_1 = require('../../typedfsm');
const chai_1 = require('chai');
var GhostStates;
(function (GhostStates) {
    GhostStates['Waiting'] = 'Waiting';
    GhostStates['Chasing'] = 'Chasing';
    GhostStates['Scatter'] = 'Scatter';
    GhostStates['Frightened'] = 'Frightened';
    GhostStates['Eaten'] = 'Eaten';
    GhostStates['Paused'] = 'Paused';
})(GhostStates || (GhostStates = {}));
var GhostActions;
(function (GhostActions) {
    GhostActions['Wait'] = 'Wait';
    GhostActions['Chase'] = 'Chase';
    GhostActions['Scatter'] = 'Scatter';
    GhostActions['Frighten'] = 'Frighten';
    GhostActions['Eat'] = 'Eat';
    GhostActions['Pause'] = 'Pause';
})(GhostActions || (GhostActions = {}));
const ghostState = new typedfsm_1.Typed.FSM('Waiting' /* Waiting */);
ghostState
    .from('Waiting' /* Waiting */, 'Wait' /* Wait */)
    .to('Chasing' /* Chasing */, 'Chase' /* Chase */)
    .to('Scatter' /* Scatter */, 'Scatter' /* Scatter */)
    .to('Paused' /* Paused */, 'Pause' /* Pause */)
    .toFrom('Paused' /* Paused */, 'Pause' /* Pause */);
ghostState
    .from('Chasing' /* Chasing */, 'Chase' /* Chase */)
    .toFrom('Scatter' /* Scatter */, 'Scatter' /* Scatter */)
    .toFrom('Frightened' /* Frightened */, 'Frighten' /* Frighten */)
    .toFrom('Paused' /* Paused */, 'Pause' /* Pause */);
ghostState
    .from('Scatter' /* Scatter */, 'Scatter' /* Scatter */)
    .toFrom('Chasing' /* Chasing */, 'Chase' /* Chase */)
    .toFrom('Frightened' /* Frightened */, 'Frighten' /* Frighten */)
    .toFrom('Paused' /* Paused */, 'Pause' /* Pause */);
ghostState
    .from('Frightened' /* Frightened */, 'Frighten' /* Frighten */)
    .to('Eaten' /* Eaten */, 'Eat' /* Eat */)
    .toFrom('Paused' /* Paused */, 'Pause' /* Pause */);
ghostState
    .from('Eaten' /* Eaten */, 'Eat' /* Eat */)
    .to('Scatter' /* Scatter */, 'Scatter' /* Scatter */)
    .to('Chasing' /* Chasing */, 'Chase' /* Chase */)
    .to('Chasing' /* Chasing */, 'Chase' /* Chase */)
    .toFrom('Paused' /* Paused */, 'Pause' /* Pause */);
describe('Test ghost state machine.', () => {
    it('Is the current/default state waiting?', () => {
        ghostState.reset();
        chai_1.expect(ghostState.currentState).to.equal('Waiting' /* Waiting */);
    });
});
describe('Test ghost states and actions.', () => {
    it('Can change state to paused?', () => {
        ghostState.change('Paused' /* Paused */);
        chai_1.expect(ghostState.currentState).to.equal('Paused' /* Paused */);
    });
    it('Can change state to waiting?', () => {
        ghostState.change('Waiting' /* Waiting */);
        chai_1.expect(ghostState.currentState).to.equal('Waiting' /* Waiting */);
    });
    it('Can\'t change state to frightened? ', () => {
        const canChangeResult = ghostState.canChange('Frightened' /* Frightened */);
        chai_1.expect(canChangeResult).to.equal(false);
    });
    it('Can change state to chasing?', () => {
        ghostState.change('Chasing' /* Chasing */);
        chai_1.expect(ghostState.currentState).to.equal('Chasing' /* Chasing */);
    });
    it('Can change state back to paused?', () => {
        ghostState.change('Paused' /* Paused */);
        chai_1.expect(ghostState.currentState).to.equal('Paused' /* Paused */);
    });
    it('Can perform action pause?', () => {
        ghostState.reset();
        ghostState.do('Pause' /* Pause */);
        chai_1.expect(ghostState.currentState).to.equal('Paused' /* Paused */);
    });
    it('Can perform action wait?', () => {
        ghostState.do('Wait' /* Wait */);
        chai_1.expect(ghostState.currentState).to.equal('Waiting' /* Waiting */);
    });
    it('Can\'t perform action frighten? ', () => {
        const canChangeResult = ghostState.canDo('Frighten' /* Frighten */);
        chai_1.expect(canChangeResult).to.equal(false);
    });
    it('Can perform action chase?', () => {
        ghostState.do('Chase' /* Chase */);
        chai_1.expect(ghostState.currentState).to.equal('Chasing' /* Chasing */);
    });
    it('Can perform action pause?', () => {
        ghostState.do('Pause' /* Pause */);
        chai_1.expect(ghostState.currentState).to.equal('Paused' /* Paused */);
    });
    it('Does resetting change state to waiting?', () => {
        ghostState.reset();
        chai_1.expect(ghostState.currentState).to.equal('Waiting' /* Waiting */);
    });
});
let resultOnPostChange;
describe('Create on pre change state callback.', () => {
    it('Should be same state if we cancel it? (change)', () => {
        ghostState.OnPreChange = (from, to, action) => {
            return false;
        };
        ghostState.reset();
        ghostState.change('Chasing' /* Chasing */);
        chai_1.expect(ghostState.currentState).to.equal('Waiting' /* Waiting */);
    });
    it('Should be chasing if we don\'t cancel it? (change)', () => {
        ghostState.OnPreChange = (from, to, action) => {
            return true;
        };
        ghostState.reset();
        ghostState.change('Chasing' /* Chasing */);
        chai_1.expect(ghostState.currentState).to.equal('Chasing' /* Chasing */);
    });
    it('Should be same state if we cancel it? (do)', () => {
        ghostState.OnPreChange = (from, to, action) => {
            return false;
        };
        ghostState.reset();
        ghostState.do('Chase' /* Chase */);
        chai_1.expect(ghostState.currentState).to.equal('Waiting' /* Waiting */);
    });
    it('Should be chasing if we don\'t cancel it? (do)', () => {
        ghostState.OnPreChange = (from, to, action) => {
            return true;
        };
        ghostState.reset();
        ghostState.do('Chase' /* Chase */);
        chai_1.expect(ghostState.currentState).to.equal('Chasing' /* Chasing */);
    });
});
describe('Create on post change state callback.', () => {
    it('Should be scatter after callback? (change)', () => {
        ghostState.OnPostChange = (from, to, action) => {
            resultOnPostChange = `${from} ===> ${to} do ${action}`;
        };
        ghostState.reset();
        ghostState.change('Scatter' /* Scatter */);
        chai_1.expect(ghostState.currentState).to.equal('Scatter' /* Scatter */);
    });
    it('Should be scatter after callback? (do)', () => {
        ghostState.OnPostChange = (from, to, action) => {
            resultOnPostChange = `${from} ===> ${to} do ${action}`;
        };
        ghostState.reset();
        ghostState.do('Scatter' /* Scatter */);
        chai_1.expect(ghostState.currentState).to.equal('Scatter' /* Scatter */);
    });
});
describe('Check if we can perform invalid actions or state changes.', () => {
    it('Should return an error if given invalid action? (do)', () => {
        ghostState.reset();
        const result = ghostState.do('Eat' /* Eat */);
        chai_1.expect(result instanceof Error).to.equal(true);
    });
    it('Should return an error if given invalid state? (change)', () => {
        ghostState.reset();
        const result = ghostState.change('Eaten' /* Eaten */);
        chai_1.expect(result instanceof Error).to.equal(true);
    });
});
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