Articles

Mutation testing is a type of white box testing in which we mutate certain statement in the source code inorder to identify the effectiveness of the test case. A mutation is a small change in a program. It is a type of unit testing, the changes in the source code will be small so that it does not affect the objective of the program.

In Drupal 6, the configuration of vocabulary itself has an option to specify the content types that requires this vocabulary. There is only global settings for the vocabulary. If we set the vocabulary as multiple select, it will apply to all of the content types to which it belongs. We can not set this field as multiple select in one content type and single select in others.

One of our Drupal clients was using banner ads for their affiliates to bring in more members. Unfortunately these banner ads were placed inside the content with a page (A Drupal node) and the embed code for the banner ads generated using PHP code by enabling the PHP filter. If you have spent time in the Drupal world you would be knowing that enabling the PHP filter within the content area is a big security vulnerability. So the alternative was to use tokens. Read on to know how to replace a token within the content area of a node in Drupal.

The testing tool selenium IDE is usually used to develop test cases. It is a Firefox plugin So Our first step is, to install Selenium IDE. For that you can download it from the following place http://seleniumhq.org/download/. After that 'Selenium IDE' add-on to be installed. You should restart the fire fox browser.

Suppose you are working in a software enterprise and you have to combine different csv files to create a report. It is a tedious job if you try to combine it manually by copying and pasting. We can do it if there exists only 2 0r 3 files. But if we have to merge too many files, it is not time worthy. Here I am going to explain a simple step procedure to combine multiple csv files in linux operating system through command prompt.

Vimal Joseph, Technical Architect, Zyxware Technologies is an ardent proponent of the free software philosophy. His arrival was marked by quite a few changes in Zyxware. The version control system ‘git’, our project tracker, etc are a very few of the changes he put forward in Zyxware. He is a man of integrity and discipline as one can see from the Zyx3 office that he heads. We Zyxians often joke that Zyx3 is the quietest when he is present! He is by nature a quiet, calm horse and he thinks he is an introvert. He has provided technical consultancy for various external agencies like Kerala State IT Mission, State Institute of Encyclopedic Publications, University of Calicut on projects like Malayalam Computing, ICT for Visually challenged people (Insight), Migrating content to Media wiki etc… This is a sneak peek into the mind of our dear Vimal Joseph, the tech genius.

Slideshow is one of the common functionality you would find in the homepage of websites. It is nothing but the slides with text/pictures used to give an idea of the website. It can be used to summarize the various aspects of the company into a compact and user-friendly slider. Slideshows can be of different designs. Some of the websites use buttons to highlight the navigation of the slides while others use numbers, thumbnail images and so on. Here I have included an image, in which numbering is used for highlighting slider navigation.

In my previouds article "How to display Affiliate Links on page load for the contents using Category as reference id-Part 1?" I have provided a brief intrduction on affliate links and what all configurations we must do. In this article I will be explaining how to generate Affiliate Link on page load using hook_nodeapi().

Nodequeue is a module in Drupal which allows users to enlist, remove, arrange and display a queue of nodes. It has a drag-and-drop interface which facilitates the manual re-ordering of the queue. Even without the edit permissions to nodes, users are allowed to add and remove nodes from the queue. This module is usually used on sites which have features that allow users to manually control the order of display of nodes.

When we try to theme a Drupal website certain case we need to create particular region in the Drupal website. Adding region for a Drupal website is not a hard task, even a developer first creating a Drupal website can create a region. In order to add regions inside a Drupal website we only need to add a few lines extra for that. Below there are three version of drupal for the drupal 6 and 7 version creating the region is same but for the Drupal 5 version it is slightly different.

In Drupal, if you have a content type and you want to change the output of any field to something else you can use field formatter with field API. This enables a display settings for any fields in a content type and where you can manage the output as you wish. This article shares how to create a field formatter for your Drupal content types. There are some contributed modules for custom field formatters. But if you really want to create or learn about creating a field formatter programmatically, just go through this article

We all are familiar with the drop-downs on website. It is used to list a series of items under a box/menu. Suppose we have a page which lists apparels. And in apparels we have categories like shirts, t-shirts, trousers etc. We can sort these categories with the help of a drop-down (select tool). The working of drop-down is in such a way that, by default the drop-down will list only one item. When user clicks the down arrow which is displayed near to the menu, the drop-down will be dropped down and will list all the choices below. The drop-down may have pretty large list of items. So in order to select the down most items, there will option for users to scroll down. These are the primary things about a drop-down. Now lets see the test cases for testing the drop-down.