added basic test for fetching associations

test/Table/fetchAssociations.js

+var Sequelize = require(__dirname + "/../../lib/sequelize/Sequelize").Sequelize,
+    s = new Sequelize('sequelize_test', 'root', null, {disableLogging: true}),
+    Foo = s.define('Foo', { name: Sequelize.TEXT }),
+    Bar = s.define('Bar', { nr: Sequelize.INTEGER })
+
+
+module.exports = {
+  'should store data inside the fetchedAssociations hash': function(assert, beforeExit) {
+    var allowExit = false
+
+    Foo.hasMany('bars', Bar, 'foos')
+    Sequelize.chainQueries([{drop: s}, {sync: s}], function() {
+      var foo = new Foo({name:'asd'})
+      foo.save(function() {
+        assert.eql(foo.fetchedAssociations, {})
+        foo.fetchAssociations(function() {
+          assert.eql(foo.fetchedAssociations, {bars: []})
+          allowExit = true
+        })
+      })
+    })
+
+    beforeExit(function() { assert.eql(allowExit, true) })
+  }
+}
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