Use local stub module for multi-versions

package.json

@@ -26,7 +26,7 @@
     "cls-hooked": "^4.0.1"
   },
   "devDependencies": {
-    "async": "1.5.2",
+    "async-1.5.2": "file:./test/stub-modules/async-1.5.2",
     "chai": "^3.5.0",
     "dirty-chai": "^1.2.2",
     "eslint": "^2.13.1",
@@ -34,6 +34,6 @@
     "loopback": "^3.0.0",
     "mocha": "^2.5.3",
     "supertest": "^1.2.0",
-    "when": "3.7.7"
+    "when-3.7.7": "file:./test/stub-modules/when-3.7.7"
   }
 }

test/main.test.js

@@ -5,8 +5,8 @@
 
 'use strict';
 
-var async = require('async');
-var when = require('when');
+var asyncV152 = require('async-1.5.2');
+var whenV377 = require('when-3.7.7');
 var LoopBackContext = require('..');
 var Domain = require('domain');
 var EventEmitter = require('events').EventEmitter;
@@ -107,10 +107,9 @@ describe('LoopBack Context', function() {
   // Heavily edited by others
   it('keeps context when using waterfall() from async 1.5.2',
   function(done) {
-    expect(require('async/package.json').version).to.equal('1.5.2');
     LoopBackContext.runInContext(function() {
       // Trigger async waterfall callbacks
-      async.waterfall([
+      asyncV152.waterfall([
         function pushToContext(next) {
           var ctx = LoopBackContext.getCurrentContext();
           expect(ctx).is.an('object');
@@ -132,7 +131,6 @@ describe('LoopBack Context', function() {
   });
   it('doesn\'t mix up contexts if using concurrently then() from when 3.7.7',
   function() {
-    expect(require('when/package.json').version).to.equal('3.7.7');
     var timeout = 50;
     // Concurrent execution number 1 of 2
     var execution1 = new Promise(function execution1(outerResolve, reject) {
@@ -140,7 +138,7 @@ describe('LoopBack Context', function() {
         var ctx = LoopBackContext.getCurrentContext();
         expect(ctx).is.an('object');
         ctx.set('test-key', 'test-value-1');
-        var whenPromise = when.promise(function(resolve) {
+        var whenPromise = whenV377.promise(function(resolve) {
           setTimeout(resolve, timeout);
         });
         whenPromise.then(function pullFromContext1() {
@@ -160,7 +158,7 @@ describe('LoopBack Context', function() {
         var ctx = LoopBackContext.getCurrentContext();
         expect(ctx).is.an('object');
         ctx.set('test-key', 'test-value-2');
-        var whenPromise = when.promise(function(resolve) {
+        var whenPromise = whenV377.promise(function(resolve) {
           setTimeout(resolve, timeout);
         });
         whenPromise.then(function pullFromContext2() {

test/stub-modules/async-1.5.2/index.js

@@ -0,0 +1,2 @@
+'use strict';
+module.exports = require('async');

test/stub-modules/async-1.5.2/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "async-1.5.2",
+  "version": "1.5.2",
+  "description":"async version 1.5.2",
+  "dependencies": {
+    "async":"1.5.2"
+  }
+}

test/stub-modules/when-3.7.7/index.js

@@ -0,0 +1,2 @@
+'use strict';
+module.exports = require('when');

test/stub-modules/when-3.7.7/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "when-3.7.7",
+  "version": "3.7.7",
+  "description":"when version 3.7.7",
+  "dependencies": {
+    "when":"3.7.7"
+  }
+}