text: /*
  Licensed to the Apache Software Foundation (ASF) under one
  or more contributor license agreements.  See the NOTICE file
  distributed with this work for additional information
  regarding copyright ownership.  The ASF licenses this file
  to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance
  with the License.  You may obtain a copy of the License at
  
    http://www.apache.org/licenses/LICENSE-2.0
  
  Unless required by applicable law or agreed to in writing,
  software distributed under the License is distributed on an
  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  KIND, either express or implied.  See the License for the
  specific language governing permissions and limitations
  under the License.
  */
  
  describe("The StateMachine generator", function() {
    var StateMachine=require('..');
    it('exists in a module', function() {
      expect(typeof(StateMachine)).toBe('function');
    });
  
    var trBWasCalled=false;
  
    var trB=function() {
      trBWasCalled=true;
    }
  
    var calledValue=null;
  
    var entryCalled=false;
    var exitCalled=false;
    var stayWasCalled=false;
  
    var states={
      A: {
        go: 'B',
        takeArgs: ['A', function(val) {
          calledValue=val;
        }],
        stay: function() {
          stayWasCalled=true;
        },
        value: ['B', function() { return 1; }]
      },
      B: {
        go: ['A', function() { trB(); }],
        value: ['A', function() { return 2; }],
        onEntry: function() {
          entryCalled=true;
        },
        onExit: function() {
          exitCalled=true;
        }
      }
    };
    var machine=null;
    beforeEach(function() {
      machine=new StateMachine(states,'A');
      //console.log("Created machine is:");
      //console.log(machine);
    });
  
    it('creates a machine that inherits from StateMachine', function() {
        console.log("machine's prototype is " + JSON.stringify(machine.prototype));
        expect(machine instanceof StateMachine).toBe(true);
    });
  
    it('creates an object when we define states', function() {
      expect(typeof(machine)).toBe('object');
    });
  
    it('creates an object with a "go" method when we hand it a state table',
     function() {
       expect(typeof(machine.go)).toBe('function');
    });
  
    it('Starts in state A', function() {
      expect(machine.currentState.name).toBe('A');
    });
  
    it('Goes to state B when we call go.', function() {
      machine.go();
      expect(machine.currentState.name).toBe('B');
    });
  
    it('Goes to state A while calling the transition function when we call go',
    function() {
      machine.go();
      expect(machine.currentState.name).toBe('B');
      machine.go();
      expect(machine.currentState.name).toBe('A');
      expect(trBWasCalled).toBe(true);
    });
  
    it('Passes arguments to the transition functions', function() {
      expect(machine.currentState.name).toBe('A');
      machine.takeArgs("YYZ");
      expect(machine.currentState.name).toBe('A');
      expect(calledValue).toBe("YYZ");
    });
  
    it('Recognizes an event with function only', function() {
      expect(machine.currentState.name).toBe('A');
      machine.stay();
      expect(stayWasCalled).toBe(true);
      expect(machine.currentState.name).toBe('A');
    });
  
    it('Calls onEntry and onExit functions', function() {
      machine.go();
      expect(machine.currentState.name).toBe('B');
      expect(entryCalled).toBe(true);
      machine.go();
      expect(machine.currentState.name).toBe('A');
      expect(exitCalled).toBe(true);
    });
  
    it('Returns the return value of transition functions.', function() {
      expect(machine.value()).toBe(1);
      expect(machine.value()).toBe(2);
    });
  });
  