added unit testing, and started implementing unit tests...phew

node_modules/async/internal/consoleFunc.js

@@ -0,0 +1,42 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+exports.default = consoleFunc;
+
+var _arrayEach = require('lodash/_arrayEach');
+
+var _arrayEach2 = _interopRequireDefault(_arrayEach);
+
+var _slice = require('./slice');
+
+var _slice2 = _interopRequireDefault(_slice);
+
+var _wrapAsync = require('./wrapAsync');
+
+var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function consoleFunc(name) {
+    return function (fn /*, ...args*/) {
+        var args = (0, _slice2.default)(arguments, 1);
+        args.push(function (err /*, ...args*/) {
+            var args = (0, _slice2.default)(arguments, 1);
+            if (typeof console === 'object') {
+                if (err) {
+                    if (console.error) {
+                        console.error(err);
+                    }
+                } else if (console[name]) {
+                    (0, _arrayEach2.default)(args, function (x) {
+                        console[name](x);
+                    });
+                }
+            }
+        });
+        (0, _wrapAsync2.default)(fn).apply(null, args);
+    };
+}
+module.exports = exports['default'];