Created
October 27, 2014 15:09
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createStore
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var EventEmitter = require('events').EventEmitter | |
, mergeInto = require('react/lib/mergeInto'); | |
function createStore(initialState) { | |
var events = new EventEmitter(); | |
var state = initialState || {}; | |
return { | |
setState: function(newState) { | |
mergeInto(state, newState); | |
this.emitChange(); | |
}, | |
set: function(attr, val) { | |
state[attr] = val; | |
}, | |
get: function(attr) { | |
return state[attr]; | |
}, | |
getState: function() { | |
return state; | |
}, | |
addChangeListener: function (listener) { | |
events.on('change', listener); | |
}, | |
removeChangeListener: function (listener) { | |
events.removeListener('change', listener); | |
}, | |
emitChange: function() { | |
events.emit('change'); | |
} | |
}; | |
}; | |
module.exports = createStore; |
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var createStore = require('../createStore'); | |
describe('createStore', function () { | |
describe('#initialize', function() { | |
it('set data into store', function() { | |
var MyStore = createStore({name: 'Joe', age: 35}); | |
assert(MyStore.get('name') === 'Joe'); | |
assert(MyStore.get('age') === 35); | |
}); | |
}); | |
describe('#setState', function() { | |
it('sets the state and triggers an event emitter', function(done) { | |
var MyStore = createStore({name: 'Joe', age: 35}); | |
var eventReceiver = function() { | |
assert(this.get('foo') === 'bar'); | |
assert(this.get('baz') === 'bop'); | |
assert(true, 'event was triggered'); | |
done(); | |
}; | |
MyStore.addChangeListener(eventReceiver.bind(MyStore)); | |
MyStore.setState({ | |
foo: 'bar', | |
baz: 'bop' | |
}); | |
}) | |
}); | |
}); |
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