Convert Token module into callback based

lib/token/token.coffee

@@ -1,15 +1,18 @@
 # TODO: Persist token in a secure manner
+data = require('../data/data')
 
 token = null
 
-exports.saveToken = (newToken) ->
+exports.saveToken = (newToken, callback) ->
 	token = newToken
+	return callback(null, token)
 
-exports.hasToken = ->
-	return token?
+exports.hasToken = (callback) ->
+	return callback(token?)
 
-exports.getToken = ->
-	return token or undefined
+exports.getToken = (callback) ->
+	return callback(null, token or undefined)
 
-exports.clearToken = ->
+exports.clearToken = (callback) ->
 	token = null
+	return callback?(null)

lib/token/token.spec.coffee

@@ -1,4 +1,5 @@
 expect = require('chai').expect
+async = require('async')
 token = require('./token')
 
 johnDoeFixture = require('../../tests/fixtures/johndoe.json')
@@ -8,56 +9,105 @@ describe 'Token:', ->
 
 	describe 'given a user that is logged in', ->
 
-		beforeEach ->
-			token.saveToken(johnDoeFixture.token)
+		beforeEach (done) ->
+			token.saveToken(johnDoeFixture.token, done)
 
 		describe '#saveToken()', ->
 
-			it 'should overwrite the old token', ->
-				expect(token.getToken()).to.equal(johnDoeFixture.token)
-				token.saveToken(janeDoeFixture.token)
-				expect(token.getToken()).to.not.equal(johnDoeFixture.token)
-				expect(token.getToken()).to.equal(janeDoeFixture.token)
+			it 'should overwrite the old token', (done) ->
+				async.waterfall [
+
+					(callback) ->
+						token.getToken(callback)
+
+					(savedToken, callback) ->
+						expect(savedToken).to.equal(johnDoeFixture.token)
+						token.saveToken(janeDoeFixture.token, callback)
+
+					(savedToken, callback) ->
+						token.getToken(callback)
+
+					(savedToken, callback) ->
+						expect(savedToken).to.equal(janeDoeFixture.token)
+						return callback()
+
+				], (error) ->
+					expect(error).to.not.exist
+					done()
 
 		describe '#hasToken()', ->
 
-			it 'should return true', ->
-				expect(token.hasToken()).to.be.true
+			it 'should return true', (done) ->
+				token.hasToken (hasToken) ->
+					expect(hasToken).to.be.true
+					done()
 
 		describe '#getToken()', ->
 
-			it 'should return the token', ->
-				expect(token.getToken()).to.equal(johnDoeFixture.token)
+			it 'should return the token', (done) ->
+				token.getToken (error, savedToken) ->
+					expect(error).to.not.exist
+					expect(savedToken).to.equal(johnDoeFixture.token)
+					done()
 
 		describe '#clearToken()', ->
 
-			it 'should effectively clear the token', ->
-				expect(token.getToken()).to.equal(johnDoeFixture.token)
-				token.clearToken()
-				expect(token.getToken()).to.be.undefined
+			it 'should effectively clear the token', (done) ->
+				async.waterfall [
+
+					(callback) ->
+						token.getToken(callback)
+
+					(savedToken, callback) ->
+						expect(savedToken).to.equal(johnDoeFixture.token)
+						token.clearToken(callback)
+
+					(callback) ->
+						token.getToken(callback)
+
+					(savedToken, callback) ->
+						expect(savedToken).to.be.undefined
+						return callback()
+
+				], (error) ->
+					expect(error).to.not.exist
+					done()
 
 	describe 'given a user that didn\'t log in', ->
 
-		beforeEach ->
-			token.clearToken()
+		beforeEach (done) ->
+			token.clearToken(done)
 
 		describe '#saveToken()', ->
 
-			it 'should save a token', ->
-				token.saveToken(johnDoeFixture.token)
-				expect(token.getToken()).to.equal(johnDoeFixture.token)
+			it 'should save a token', (done) ->
+				async.waterfall [
+
+					(callback) ->
+						token.saveToken(johnDoeFixture.token, callback)
+
+					(savedToken, callback) ->
+						token.getToken(callback)
+
+					(savedToken, callback) ->
+						expect(savedToken).to.equal(johnDoeFixture.token)
+						return callback()
+
+				], (error) ->
+					expect(error).to.not.exist
+					done()
 
 		describe '#hasToken()', ->
 
-			it 'should return false', ->
-				expect(token.hasToken()).to.be.false
+			it 'should return false', (done) ->
+				token.hasToken (hasToken) ->
+					expect(hasToken).to.be.false
+					done()
 
 		describe '#getToken()', ->
 
-			it 'should return undefined', ->
-				expect(token.getToken()).to.be.undefined
-
-		describe '#clearToken()', ->
-
-			it 'should not throw an error', ->
-				expect(token.clearToken).to.not.throw(Error)
+			it 'should return undefined', (done) ->
+				token.getToken (error, savedToken) ->
+					expect(error).to.not.exist
+					expect(savedToken).to.be.undefined
+					done()