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Previous editions: July 2017
• May 2017
• March 2017
• January 2017
• November 2016
• September 2016
• July 2016
• May 2016
• March 2016
• this is the current edition
Keynote article ...
|Regression testing - via a very short C testing framework|
Code testing is important. Separation of code into separate, managable sections is important. Retesting of code running all the old tests is important when the code sections are enhanced / debugged.
At the end of this week's C course, we wrote a whole series of pieces of logic relating to web server log files - loading data into dynamic (realloc'd arrays of structs, and then extracting data from those structures. And we wrote an initial main routine to run and test from the command line. For initial development, that's great but ...
... the main couldn't remain as we started to build with the logic
... lots of sections / routine groups need testing.
• Rename main to a different name such as test_access and leave it in the original file
• build a tiny test harness that runs each set of tests and correlates the results
• have the test harness send standard output (stdout) within the tests to a file
A rudemintary regression testing system, where each time you add a new set of routines or change something, you can rerun all the tests and get an automated set of replies.
The results of running the test suite look a bit boring:
WomanWithCat:cj16 grahamellis$ ./framework
Failed 1 test(s) out of 4, passed 3
Commented framework source is [here] and tests and routines to be tested [here] and [here].
(this article written on 2016-01-29)
Other articles ...
shell - bash. Writing conditional tests and statements - the options available
Extending your bash shell with aliases, functions and extra commands
What is make? What is gcc?
Bash ... some new scripts to - handling user input
Web Server Admin - some of those things that happen, and solutions
or Show all for Linux and Shell Programming
Can a legitimate forum post become illegal a year later?
Change to Libel and Defamation laws from 1st January 2014
Apache httpd - a robust, open source web server
Helping search engines with appropriate 400 error codes
Handling failures / absences of your backend server nicely
or Show all for Apache HTTP and Tomcat Servers
Encapsulating logic in functions and structs - the C approach to Object Oriented techniques
Regression testing - via a very short C testing framework
String handling in C - new examples of extracting integers from a string
Remember to ask the question before you listen for the answer
C - why is slow to write and debug) but fast to run?
or Show all for C and C++ Programming
Melksham Chamber of Commerce - my final Presidents report
TransWilts Partner Update for Melksham Area Board
Three months in community rail pictures
Pretty at the station too
Supported Bus Services in Wiltshire - analysis of written-in comments
or Show all for Melksham
Final day of training at Well House Manor - Python, Lua, Tcl and C/C++ continue at The Spa, Melksham - (new - 2017-06-30)
Course dates - from October 2016 to December 2017
Training Course schedule for summer and autumn 2016
Training course and hotel room prices - 2016
What teach you in a week stays with you for a decade
or Show all for Training from Well House Consultants
A year of changes for Lisa and Graham Ellis, and Well House
No cold sales calls please - but delighted to hear from others!
Effect on external factors on traffic to our web sites - an update
Four in a Bed - most popular answers
Seventh stay away this year - and it's still only February!
or Show all for Running a training and hotel company
Well House Manor - Still five out of five!
Spring at Well House Manor
In your room at Well House Manor, Melksham, Wiltshire
PC Plod - alive and scaremongering in Wiltshire?
Our best hotel customers help us ... to help them ... be our best customers.
or Show all for Well House Manor - Hotel and Training Centre
The technical article feed continues - personal updates more proactive on Facebook now!
Moderation - and the tendency to over-moderate
Almost so wrong, but perhaps it's right for some?
The unbalanced relationship between customer and provider
A booking that looks too good to be true? It probably is too good to be true!
or Show all for For the Webmaster, Postmaster and moderator
Real life PHP application using our course training MVC example
Singleton design pattern - examples and uses
From single block to structure and object oriented programming
Principles or a GUI and their practical application using wxPthon
Learning not just what a program does, but how to design it in the first place.
or Show all for General Programming Topics
Image indexer / thumbnail display scripts in PHP
Testing new algorithms in PHP
A small teaching program - demonstration of principles only
Using an MVC structure - even without a formal framework
Associative objects - one object within another.
or Show all for PHP - the language and its application
Java web application for teaching - now with sessions and clustering / load balancing demonstrations
A Java servlet that is also a stand alone program. And a server that is also a web client.
The spirit of Java - delegating to classes
Using the lead - passing arrays and other collections in Java
Java example - for loop and conditionals from course exercise
or Show all for Java and the Java Environment
Up and down TransWilts - some pictures off the rails!
Coats of arms - towns and authorities in Wiltshire
Rambling from Westbury
Frosty morning, beauty of Wiltshire
A lovely meal in Swindon - just a short walk from the station
or Show all for Around, about and nearby to Wiltshire
Obfurscated code - it might work, but is it maintainable?
One line scripts - Awk, Perl and Ruby
Perl 6 - a Practical Extraction and Reporting example!
Hungarian, Camel, Snake and Kebab - variable naming conventions
Sorting by key or by comparator - Perl 6
or Show all for The Perl Programming Language and its use
Problem ... I want to print a series of numbered forms
Sending a message to the server and changing text on a page when a button is pressed
Cascading Style Sheets and formatting your web page
HTML tags uses in these blog articles
Special characters in HTML
Ruby testing with RSpec - a new example
Processing data line by line - iterator in Ruby with yield
Reading in XML in Ruby with xmlsimple
Expect with Ruby - a training example to get you started
Running shell (operating system) commands from within Ruby
or Show all for Ruby and Ruby on Rails
Forgotten / lost MySQL root password
Starting MySQL. ERROR! The server quit without updating PID file - how we fixed it.
Extracting data from backups to restore selected rows from MySQL tables
Fixing damaged MySQL tables - Error 1712 and Error 2013
Checking MySQL database backups have worked (not failed)
or Show all for SQL and MySQL
Still teaching Tcl in 2016?
What does Tcl do if you try to run a command that is not defined?
Tcl - a new example for data reformatting
Catching failed commands and not crashing the program in Tcl
Loading packages in your Tcl program
or Show all for Tcl, Tcl/Tk and Expect
Lua, Tcl, Python, C and C++ courses - at our Melksham HQ or on your site - forward from July 2017 - (new - 2017-07-02)
repeat until in Lua - a one or more rather than a zero or more loop
Classic style OO code - in Lua
Tables with values and code in Lua - looks like an object?
Lua - using modules to add your own utilities
or Show all for Programming in Lua
From and Import in Python - where is the module loaded from?
Conditional operators in Python
Embedding more complex code into a named block
When to check an object type - Python isinstance example
or Show all for Python Programming
Sale of effects and furniture - 12th and 13th August 2017 - (new - 2017-07-25)
Learning how to be a more effective community partner - (new - 2017-07-15)
Back and continuing to feed pictures! - (new - 2017-07-08)
A quiet Sunday afternoon - (new - 2017-07-02)
Welcome to July. Picture labelling continues! - (new - 2017-07-01)
Thurday images - (new - 2017-06-29)
Pictures for Wednesday - (new - 2017-06-28)
A second batch of images for today - (new - 2017-06-27)
Image feed for Tuesday ... - (new - 2017-06-27)
Image library - labelling continues! - (new - 2017-06-26)
More pictures - final labelling set for today - (new - 2017-06-25)
Updating image labels - (new - 2017-06-25)
Further picture labelling! - (new - 2017-06-25)
Third and final set of older picture for today - (new - 2017-06-24)
Catching up on labelling more images - (new - 2017-06-24)
Labelling images - (new - 2017-06-24)
or Show all for And also ...
Learning from travelling further afield
Melksham trial train service is to be made permanent
What do people use the bus for in Wiltshire - survey interim results.
Melksham Rail Development Group - a celebration of 20 years
Melksham Rail Development Group becoming Melksham Rail Users Group
or Show all for Public Transport
Celebrating our diversity rather than discriminating for it
Pressure selling in the fire safety business
The story behind the bus cuts, and what they could mean
Interview conditions,and other instructions to staff
Please do not ask me to be the chair!
or Show all for Fun and Flames
Brown - or Mrs Sally Brown, accountant from Whitstable?
Looking ahead to the Autumn season of training and accommodation
Where do I start when writing a program?
Past Delegate Offer - Summer Holiday / Weekend Break
Well House Manor Hotel - on plan for 2009 business guests
or Show all for Keynote Articles
Rotary Talk, 25/7/2017 - (new - 2017-07-25)
Even more images! - (new - 2017-07-16)
Images ... continued - (new - 2017-07-16)
Python examples - updates under way
Reviewing TransWilts performance 2015-16
or Show all for unclassified
A little more about this newsletter ...
At Well House Consultants, we run niche IT training courses ... and we run a hotel for delegates on those courses and other visitors to Melksham too. And we make a lot of friends - have a lot of ambassadors with whom we want to keep in touch. So every day Graham (that's me, writing this piece) puts together an article or two which might include the latest sample programs that I've written during the current course, new information about Well House Manor - our business hotel
, tips on search engine optimisation, announcements of upcoming public courses
, pictures of local places, and even (on occasions) rants and whimsical pieces to keep those friends up to date and in touch. The feeds are available directlt via the Blog - "The Horse's Mouth"
, they're on our Twitter Feed
and you can find me at my LinkedIn profile
. But most people just want to look us up occasionally - every month or two, and then to catch up on the latest news just for their particular subjects of interest
... and that's what this newsletter is about
You'll find above the titles of ALL the new articles written in the last two months, listed by major subject area, and showing as (new)
with their date of publication. You'll find additional articles in each category too - topping each category up to a minimum of five articles. And you'll find a link at the end of each section which lets you expand that section to show the titles of every article that's been published in that section. After all, "the old ones are often the best ones", aren't they?