add test case for fromColumnValue

Author: dhmlau

package.json

@@ -17,7 +17,7 @@
   "scripts": {
     "pretest": "eslint ./ && jscs ./",
     "lint": "eslint ./ && jscs ./",
-    "test": "mocha --timeout 10000"
+    "test": "mocha --timeout 10000 --require test/init.js test/*.js"
   },
   "dependencies": {
     "async": "^1.5.0",

test/connect.test.js

@@ -6,7 +6,6 @@
 /* eslint-env node, mocha */
 var EventEmitter = require('events').EventEmitter;
 var IBMDB = require('../').IBMDB;
-require('./init.js');
 
 describe('basic connector', function() {
   var ds = new EventEmitter;

test/functional.test.js

@@ -0,0 +1,27 @@
+// Copyright IBM Corp. 2016. All Rights Reserved.
+// Node module: loopback-connector-db2
+// This file is licensed under the Artistic License 2.0.
+// License text available at https://opensource.org/licenses/Artistic-2.0
+
+'use strict';
+
+/* eslint-env node, mocha */
+process.env.NODE_ENV = 'test';
+var assert = require('assert');
+var EventEmitter = require('events').EventEmitter;
+var IBMDB = require('../').IBMDB;
+
+var db = new EventEmitter;
+
+describe('functional test', function() {
+  before(function(done) {
+    db.connector = new IBMDB('db2', global.config);
+    db.connector.dataSource = db;
+    done();
+  });
+  it('`fromColumnValue` function', function(done) {
+    var result = db.connector.fromColumnValue({}, undefined);
+    assert.equal(result, undefined);
+    done();
+  });
+});

test/ibmdb.config.test.js

@@ -5,7 +5,6 @@
 
 /* eslint-env node, mocha */
 process.env.NODE_ENV = 'test';
-require('./init.js');
 var assert = require('assert');
 
 var config;