Move hasIPv6 into sysinfo

src/test/config-test.js

@@ -79,8 +79,4 @@ describe('config', function () {
 
         done();
     });
-
-    it('test machine has IPv6 support', function () {
-        expect(config.hasIPv6()).to.equal(true);
-    });
 });

src/test/sysinfo-test.js

@@ -0,0 +1,24 @@
+/* global it:false */
+/* global describe:false */
+/* global after:false */
+/* global before:false */
+
+'use strict';
+
+var config = require('../config.js'),
+    expect = require('expect.js'),
+    sysinfo = require('../sysinfo.js');
+
+describe('config', function () {
+    before(function () {
+        config._reset();
+    });
+
+    after(function () {
+        config._reset();
+    });
+
+    it('test machine has IPv6 support', function () {
+        expect(sysinfo.hasIPv6()).to.equal(true);
+    });
+});