test(deps): upgrade vows and sandboxed-module to support node v7

add a missing dependency - axios.
adjust tests to be compatible with latest sandboxed-module.

.travis.yml

@@ -1,6 +1,7 @@
 language: node_js
 sudo: false
 node_js:
+  - "7"
   - "6"
   - "5"
   - "4"

package.json

@@ -42,10 +42,10 @@
     "eslint-config-airbnb-base": "^11.0.0",
     "eslint-plugin-import": "^2.0.0",
     "ghooks": "^1.2.1",
-    "sandboxed-module": "0.3.0",
+    "sandboxed-module": "^2.0.3",
     "tape": "^4.6.2",
     "validate-commit-msg": "^2.6.1",
-    "vows": "0.7.0"
+    "vows": "0.8.0"
   },
   "optionalDependencies": {
     "hipchat-notifier": "^1.1.0",
@@ -83,5 +83,8 @@
       },
       "commit-msg": "validate-commit-msg"
     }
+  },
+  "peerDependencies": {
+    "axios": "^0.15.3"
   }
 }

test/vows/clusteredAppender-test.js

@@ -115,6 +115,7 @@ vows.describe('log4js cluster appender').addBatch({
 				send: function(data) {
 					registeredProcessEvents.push(data);
 				},
+        env: process.env
 
 			};
 

test/vows/configuration-test.js

@@ -26,6 +26,7 @@ vows.describe('log4js configure').addBatch({
         log4js = sandbox.require(
           '../../lib/log4js',
           {
+            singleOnly: true,
             requires: {
               './appenders/cheese': testAppender
             }
@@ -56,9 +57,12 @@ vows.describe('log4js configure').addBatch({
         var testAppender = makeTestAppender(),
         log4js = sandbox.require(
           '../../lib/log4js',
-          { requires: { './appenders/cheese': testAppender } }
+          {
+            singleOnly: true,
+            requires: { './appenders/cheese': testAppender }
+          }
         );
-        
+
         log4js.loadAppender('cheese');
         return log4js;
       },
@@ -74,7 +78,10 @@ vows.describe('log4js configure').addBatch({
         var testAppender = makeTestAppender(),
         log4js = sandbox.require(
           '../../lib/log4js',
-          { requires: { 'some/other/external': testAppender } }
+          {
+            singleOnly: true,
+            requires: { 'some/other/external': testAppender }
+          }
         );
         log4js.loadAppender('some/other/external');
         return log4js;

test/vows/fileAppender-test.js

@@ -57,6 +57,7 @@ vows.describe('log4js fileAppender').addBatch({
               }
             }
           },
+          singleOnly: true,
           requires: {
             'streamroller': {
               RollingFileStream: function(filename) {

test/vows/gelfAppender-test.js

@@ -57,6 +57,7 @@ var vows = require('vows')
     messagePassThroughLayout: realLayouts.messagePassThroughLayout
   }
   , appender = sandbox.require('../../lib/appenders/gelf', {
+    singleOnly: true,
     requires: {
       dgram: fakeDgram,
       zlib: fakeZlib,

test/vows/log-abspath-test.js

@@ -10,7 +10,9 @@ vows.describe('log4js-abspath').addBatch({
       var appenderOptions,
       log4js = sandbox.require(
         '../../lib/log4js',
-        { requires:
+        {
+          singleOnly: true,
+          requires:
           { './appenders/fake':
             { name: "fake",
               appender: function() {},

test/vows/logstashUDP-test.js

@@ -25,6 +25,7 @@ function setupLogging(category, options) {
   };
 
   var logstashModule = sandbox.require('../../lib/appenders/logstashUDP', {
+    singleOnly: true,
     requires: {
       'dgram': fakeDgram
     }

test/vows/smtpAppender-test.js

@@ -42,6 +42,7 @@ function setupLogging(category, options) {
     };
 
     var smtpModule = sandbox.require('../../lib/appenders/smtp', {
+        singleOnly: true,
         requires: {
             'nodemailer': fakeMailer,
             'nodemailer-sendmail-transport': fakeTransportPlugin,