Added test to show byo promise library

Author: christkv

package.json

@@ -28,6 +28,7 @@
     , "mongodb-version-manager": "^0.5.0"
     , "mongodb-tools": "~1.0"
     , "co": "4.5.4"
+    , "bluebird": "2.9.27"
   },
   "author": "Christian Kvalheim",
   "license": "Apache-2.0",

test/functional/byo_promises_tests.js

@@ -0,0 +1,29 @@
+"use strict";
+
+var f = require('util').format;
+
+exports['Should Correctly Use Blurbird promises library'] = {
+  metadata: {
+    requires: {
+      topology: ['single', 'ssl', 'wiredtiger']
+    }
+  },
+
+  // The actual test we wish to run
+  test: function(configuration, test) {
+    var MongoClient = configuration.require.MongoClient
+      , Promise = require('bluebird');
+    
+    MongoClient.connect(configuration.url(), {
+      promiseLibrary: Promise
+    }).then(function(db) {
+      var promise = db.collection('test').insert({a:1});
+      test.ok(promise instanceof Promise);
+
+      promise.then(function() {
+        db.close();
+        test.done();        
+      });
+    });
+  }
+}

test/runner.js

@@ -252,6 +252,7 @@ var testFiles =[
   , '/test/functional/promises_collection_tests.js'
   , '/test/functional/promises_cursor_tests.js'
   , '/test/functional/operation_promises_example_tests.js'
+  , '/test/functional/byo_promises_tests.js'
 
   // Logging tests
   , '/test/functional/logger_tests.js'