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How deep should unit test go?
There is a question on Stackoverflow which says "How deep are your unit tests?". It is asked by a guy named John Nolan. The question is not too new, but what catches me is the Best Answer given by Kent Beck, who is the creator of Extreme programming(XP) and Test Driven Development(TDD). Let's look at the question first. The thing I've found about TDD is that its takes time to get your tests set up and being naturally lazy I always want to write as little code as possible. The first thing I seem ...
The Best Wireless Headphones for Everyday Use
Wireless headphones have consumed a little bit of slamming during the previous six months, complying with Apple's debatable choice to clear the newest set of Apple iPhone of the reliable old earphone port. HTC observed fit using the U Ultra and also in businesses and undergone lots of objection from both customers and market professionals. Several sets are more concentrated on sports and also exercise and set in additional functions to perform so that some others are created mainly for hearing t...
HEADPHONES,WIRELESS 2017-10-12 10:54:56
Send email from Ubuntu command line
First install exim4 and exim4-config using the package manager then install mailx sudo apt-get install mailutils and follow the prompts once this is set up use the command “mail” to check your mail. if you would like to send mail type “mail” followed by the email address to mail it to eg mail me@examplecom enter the subject and press enter the body and keep pressing enter as many times as you need to, when your body is finished, press “Ctrl” and “D" toge...
Ubuntu,Email,Command line,mailutils 2011-04-25 15:58:10
Set up Superset on ubuntu 16.04 LTS
Apache Superset (incubating) is a modern, enterprise-ready business intelligence web application. Compared with business-focused BI tool like Tableau, superset is more technology-navy. It supports more types of visualization and able to work in distributed manner to boost the query performance. Most importantly, it is free of charge! An example dashboard: Let’s go and set it up. Create a virtualenv Assume Anaconda is installed for python management. # create a virtualenv with python 3.6 co...
Set Theory in C++11
Have you ever felt the need to perform set theoretic operations on types? Not really? Me neither, but I thought it’s a fun thing to try out. So, if you ever feel the need of using type sets, C++11 makes it quite easy to do so. Especially variadic templates allow for a much more condensed syntax compared to type list constructs formerly used. (Disclaimer: This is rather a proof of concept, but maybe somebody comes up with a useful scenario.) Let’s start by d...
C++,set theory,Math 2012-03-11 13:15:55
Date interval add and sub prior to PHP 5.3
After PHP 5.3, we can use DateInterval object or date_interval_create_from_date_string() function to add or subtract days,weeks,months or years to or from a DateObject.But prior to PHP 5.3,we cannot do this. If we want to achieve the same effect. We need to use some skills. Here is one:We can use strtotime() function to achieve this. For example:$date=date('Y-m-d',time());$datestamp=strtotime(date('Y-m-d',strtotime($date)).' +1 day'); $datestamp=strtotime(date('Y-m-d',strtotime($date)).' +1...
PHP,DateInterval,Class,PHP 5.3,PHP 5.2 2011-10-21 10:50:10
Generate certificate in Java -- Store certificate in KeyStore
In previous post, we have explained how to create a certificate chain in Java. After generating the chain, we need to store it somewhere so that it can be used later when we are doing the actual SSL communication, either in a key store or trust store. This post will show you how to store the private key and its associated certificate chain in a keystore file. There are different types of keystore in Java, in this post, we will choose the JKS to demonstrate how to store the certificate chain. Whe...
Java,Certificate chain,Keystore 2014-08-20 03:56:39
Getting started with WTL on Visual Studio 2010
Now that you have downloaded the latest WTL release (v8.1 at the time of this writing), you will find out that it doesn’t have any project wizards for Visual Studio 2010. That’s a relatively easily fix. Just go ahead and download the latest build from the repository at AppWiz.tar.gz-view=tar. Extract the .tar file and you will find the JavaScript install scripts for VS 2010: I recommend you to extract the files to the same location were you installed the WTL files. In my ca...
Productivity tips for freelance web designers
There are lots of great things about freelance, such as not being tied to a desk, flexible working hours and little, if any, supervision. All freelance web designers probably realize that one of the biggest challenges of their job is the issue of productivity. How to motivate yourself and stay productive every day with no external supervisors telling us to complete a task right now? Here are five practical productivity hacks for all freelance web designers who want to boost their performance. 1....
productivity tips, freelance, web designers, productivity hacks 2015-02-13 01:40:29
Meta tag in HTML header
In server response, we can use response.setHeader() to set the meta information in header of a HTML page. The usage is response.setHeader(name,context); meta is used to simulate the response header of HTTP protocol in HTML page. It should be put between the <head> and </head> tag. 1. <meta name="Generator" content="" > <!--This is to specify the tool which generates this page such as Microsoft FrontPage 4.0 etc --> 2. <meta name="keywords" content=""> <!-- To tel...
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