The Well House Newsletter - Thursday, 25th April 2024
About us and this newsletter [link] ...
Previous editions: March 2024January 2024November 2023September 2023July 2023May 2023March 2023January 2023November 2022 • this is the current edition

Public Transport Training from Well House Consultants And also ... Tcl, Tcl/Tk and Expect Programming in Lua Python Programming Well House Manor - Hotel and Training Centre Apache HTTP and Tomcat Servers The Perl Programming Language and its use Ruby and Ruby on Rails PHP - the language and its application C and C++ Programming Linux and Shell Programming Melksham SQL and MySQL For the Webmaster, Postmaster and moderator Java and the Java Environment Fun and Flames Running a training and hotel company Around, about and nearby to Wiltshire Client Side Languages (HTML, CSS, Javascript) Keynote Articles General Programming Topics
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.

Solution?
• 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

Result?
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
  
  .F..
  Failed 1 test(s) out of 4, passed 3
  
  WomanWithCat:cj16 grahamellis$


Commented framework source is [here] and tests and routines to be tested [here] and [here].
(this article written on 2016-01-29)

Other articles ...

Linux and Shell Programming
[4587] shell - bash. Writing conditional tests and statements - the options available
[4586] Extending your bash shell with aliases, functions and extra commands
[4585] What is make? What is gcc?
[4584] Bash ... some new scripts to - handling user input
[4487] Starting MySQL. ERROR! The server quit without updating PID file - how we fixed it.
Top or Show all for Linux and Shell Programming

Apache HTTP and Tomcat Servers
[4708] Scons - a build system in Python - building hello world
[4491] Web Server Admin - some of those things that happen, and solutions
[4434] Public training courses - upcoming dates
[4432] Java web application for teaching - now with sessions and clustering / load balancing demonstrations
[4431] A Java servlet that is also a stand alone program. And a server that is also a web client.
[4412] Java -making sure you have the right versions
[4404] Which (virtual) host was visited? Tuning Apache log files, and Python analysis
[4317] Java - an update of the basics
[4277] Sending a message to the server and changing text on a page when a button is pressed
[4178] Where are you? How to write a geosensitive application
[4064] Apache httpd - a robust, open source web server
[3996] Tips on Tomcat - moving applications around
[3915] How does PHP work?
[3892] Distributed, Balanced and Clustered Load Sharing - the difference
[3862] Forwarding a whole domain, except for a few directories - Apache http server
[3819] Packing a tar, jar or war file - best practise
[3753] Adding a passcode to a directory
[3680] How can I run multiple web servers behind a single IP address?
[3443] Getting more log information from the Apache http web server
[3339] Simplest ever proxy configuration?
[3019] Apache httpd Server Status - monitoring your server
[3018] Tuning Apache httpd and Tomcat to work well together
[3015] Logging the performance of the Apache httpd web server
[2900] Redirecting a page - silent, temporary or permanent?
[2768] Carrying a long URL around - looking for memorable shorts
[2753] You do not just fly - that is just part of the journey
[2728] Redirecting a home page using mod_rewrite
[2596] Http protocol - what does a web server send
[2552] Web site traffic - real users, or just noise?
[2482] Load balancing with sticky sessions (httpd / Tomcat)
[2355] See this page in French
[2325] Apache, Tomcat, mod_proxy
[2273] Three recent questions on Tomcat Convertors
[2272] Monitoring and loading tools for testing Apache Tomcat
[2186] An FAQ on the Apache httpd and Apache Tomcat web servers, and on using them together
[2184] Choosing the right version of Java and Tomcat
[2163] CATALINA_OPTS v JAVA_OPTS - What is the difference?
[2120] Java on the Web Server - course for delegates with some prior Java experience
[2096] Where is my new Apache httpd installed
[2094] If you have a spelling mistake in your URL / page name
[2088] Changing the 404 - file not found - page in Tomcat
[2082] Jmeter - a first test case
[2081] Connecting jconsole remotely - the principles
[2080] Using ApacheBench and jconsole to test and monitor Tomcat
[2079] Java - Memory Allocation and garbage collection
[2077] Why put Apache httpd in front of Apache Tomcat
[2072] Copyright, Portability and other nontechnical web site issues
[2063] Internal Dummy Connections on Apache httpd
[2062] Virtual hosting and mod_proxy forwarding of different domains (httpd)
[2061] Tomcat 6 - Annotated Sample Configuration Files
[2060] Database connection Pooling, SSL, and command line deployment - httpd and Tomcat
[2059] Sharing the load between servers - httpd and Tomcat
[2055] Effect on server when memory runs out and swapping starts
[2054] Tuning httpd / the supermarket checkout comparison
[2039] The Invoker
[2038] Sticky Sessions with mod_jk (httpd to Tomcat)
[2016] Apache httpd and Apache Tomcat miscellany
[1994] tomcat-users.xml; what a difference a space made
[1974] Moving a directory on your web site
[1969] Search Engines. Getting the right pages seen.
[1945] Summary - Apache httpd build on Linux
[1944] Forwarding session and cookie requests from httpd to Tomcat
[1943] Port and Glasses
[1941] Server - Service - Engine - Host, Tomcat
[1940] URL rewriting with front and back servers
[1939] mod_proxy_ajp and mod_proxy_balancer examples
[1901] XML, HTML, XHTML and more
[1899] Virtual Hosting under Tomcat - an example
[1896] Virtual Hosts and Virtual Servers
[1796] libwww-perl and Indy Library in your server logs?
[1767] mod_proxy and mod_proxy_ajp - httpd
[1762] WEB-INF (Tomcat) and .htaccess (httpd)
[1761] Logging Cookies with the Apache httpd web server
[1749] Using server side and client side programming together
[1718] Increasing Java Virtual Machine memory for Tomcat
[1707] Configuring Apache httpd
[1687] Virtual Hosting on Apache httpd - a primer example
[1686] FTP - how not to corrupt data (binary v ascii)
[1656] Be careful of misreading server statistics
[1636] What to do if the Home Page is missing
[1619] User and Group settings for Apache httpd web server
[1615] PHP training courses every month
[1593] Keep the client experience easy - single server contact point
[1566] Strange behaviour of web directory requests without a trailing slash
[1564] Default file (MiMe types) for Apache httpd and Apache Tomcat
[1554] Online hotel reservations - Melksham, Wiltshire (near Bath)
[1553] Automatic startup and shutdown of Tomcat
[1552] Extra public classes in deploying Apache httpd and Tomcat
[1551] Which modules are loaded in my Apache httpd
[1503] Web page (http) error status 405
[1486] Does anyone understand Lithuanian?
[1449] Upgrade Mac OSX to Leopard, Web Server Apache httpd config lost
[1383] Monitoring mod_jk and how it is load balancing
[1378] Etag in http headers - what is it?
[1377] Load Balancing with Apache mod_jk (httpd/Tomcat)
[1376] Choosing between mod_proxy and mod_rewrite
[1370] Apache Tomcat Performance Tuning
[1365] Korn Shell scripts on the web
[1355] .php or .html extension? Morally Static Pages
[1351] Compressing web pages sent out from server. Is it worth it?
[1292] DHCP automatic IP address v Static IP
[1265] Apache, Tomcat, Jakarta, httpd, web server - what are they?
[1256] What country are you in? How we find out on our web site
[1198] From Web to Web 2
[1192] What are WEB-INF and META-INF directories?
[1176] A pu that got me into trouble
[1168] Moving out some of the web site bloat
[1121] Sharing the load with Apache httpd and perhaps Tomcat
[1080] httpd.conf or .htaccess?
[1031] robots.txt - a clue to hidden pages?
[1024] Web site - a refresh to improve navigation
[1020] Parallel processing in PHP
[1006] Apache httpd and Apache Tomcat together tips
[914] A practical example of roles
[853] To list a directory under httpd on a web server, or not?
[837] Tomcat - Shutdown port
[755] Using different URLs to navigate around a single script
[746] Domain Listing Center and Domain Registry of America
[732] Where is a web site visitor browsing from
[690] Adding Virtual Hosts
[660] Stopping and restarting Apache httpd cleanly
[659] Web Application Components
[653] Easy feed!
[642] How similar are two words
[631] Apache httpd to Tomcat - jk v proxy
[576] Why run two different web servers
[532] Copyright - how much can I legally copy?
[526] Apache httpd - serving web documents from different directories
[523] Apache httpd release 2.2
[498] Why is Tomcat called Tomcat?
[468] Stand alone PHP programs
[466] Separating 'per instance' data from binaries and web sites
[465] Changing Tomcat's web.xml and reloading a web application
[436] Linking Apache httpd to Apache Tomcat
[332] Looking up IP addresses
[282] Short weekend
[260] Embperl
[49] Business is the predominant user of Tomcat, Perl and Tcl
[46] Near and far security
Top or Show all for Apache HTTP and Tomcat Servers

C and C++ Programming
[4635] Encapsulating logic in functions and structs - the C approach to Object Oriented techniques
[4633] String handling in C - new examples of extracting integers from a string
[4566] C - why is slow to write and debug) but fast to run?
[4565] Allocation of memory for objects in C++ - Stack v Heap
[4563] Formatting and outputting your own classes in C++
Top or Show all for C and C++ Programming

Melksham
[4738] Melksham Chamber of Commerce - my final Presidents report
[4706] Melksham trial train service is to be made permanent
[4704] Three months in community rail pictures
[4703] What do people use the bus for in Wiltshire - survey interim results.
[4701] Pretty at the station too
Top or Show all for Melksham

Training from Well House Consultants
[4769] Python, Tcl, Lua and other Open Source programming courses for 2018
[4751] Final day of training at Well House Manor - Python, Lua, Tcl and C/C++ continue at The Spa, Melksham
[4705] Course dates - from October 2016 to December 2017
[4689] Training Course schedule for summer and autumn 2016
[4671] Ruby training, half a world away
Top or Show all for Training from Well House Consultants

Running a training and hotel company
[4613] Our best hotel customers help us ... to help them ... be our best customers.
[4603] Happy New Year. Our customers are our ambassadors
[4543] Saturday morning at Well House Manor
[4521] Should we get an AA or Visit Wiltshire hotel assessment?
[4468] Four in a Bed - most popular answers
Top or Show all for Running a training and hotel company

Well House Manor - Hotel and Training Centre
[4715] Well House Manor - Still five out of five!
[4644] In your room at Well House Manor, Melksham, Wiltshire
[4582] A near-empty plate of pastries - sign of a breakfast enjoyed
[4567] Japanese and Malaysian food in Melksham
[4379] Well House Consultants / Well House Manor - Prices for 2015
Top or Show all for Well House Manor - Hotel and Training Centre

For the Webmaster, Postmaster and moderator
[4651] Pressure selling in the fire safety business
[4520] No cold sales calls please - but delighted to hear from others!
[4492] Almost so wrong, but perhaps it's right for some?
[4474] Effect on external factors on traffic to our web sites - an update
[4426] FileMaker Day to Unix Time conversion
Top or Show all for For the Webmaster, Postmaster and moderator

General Programming Topics
[4763] Regex Reference sheet
[4707] Some gems from an introduction to Python
[4673] Separating detailed data code from the main application - Ruby example
[4663] Easy data to object mapping (csv and Python)
[4656] Identifying the first and last records in a sequence
Top or Show all for General Programming Topics

PHP - the language and its application
[4655] Image indexer / thumbnail display scripts in PHP
[4642] A small teaching program - demonstration of principles only
[4627] Caching results in an object for efficiency - avoiding re-calculation
[4626] Singleton design pattern - examples and uses
[4483] Moving from mysql to mysqli - simple worked example
Top or Show all for PHP - the language and its application

Java and the Java Environment
[4428] Using the lead - passing arrays and other collections in Java
[4427] Java example - for loop and conditionals from course exercise
[4422] Objects - from physical to virtual or abstract - Java
[4420] Flexibility in input - read from file, web resource or keyboard
[4419] Java Inheritance example - group of classes - step by step
Top or Show all for Java and the Java Environment

Around, about and nearby to Wiltshire
[4702] Up and down TransWilts - some pictures off the rails!
[4653] Coats of arms - towns and authorities in Wiltshire
[4622] Frosty morning, beauty of Wiltshire
[4265] A lovely meal in Swindon - just a short walk from the station
[4233] Open for the new year - Imber
Top or Show all for Around, about and nearby to Wiltshire

The Perl Programming Language and its use
[4700] Obfurscated code - it might work, but is it maintainable?
[4620] Perl 6 - a Practical Extraction and Reporting example!
[4611] Hungarian, Camel, Snake and Kebab - variable naming conventions
[4610] Sorting by key or by comparator - Perl 6
[4609] Mapping an array / list without a loop - how to do it in Perl 6
Top or Show all for The Perl Programming Language and its use

Client Side Languages (HTML, CSS, Javascript)
[4037] Cascading Style Sheets and formatting your web page
[4036] HTML tags uses in these blog articles
[4035] Special characters in HTML
[4034] The VERY basics of a web page ... and web site
[3532] Sharing the user experience - designing a form with the customer in mind
Top or Show all for Client Side Languages (HTML, CSS, Javascript)

Ruby and Ruby on Rails
[4682] One line scripts - Awk, Perl and Ruby
[4681] Ruby testing with RSpec - a new example
[4680] Processing data line by line - iterator in Ruby with yield
[4679] Reading in XML in Ruby with xmlsimple
[4676] Running shell (operating system) commands from within Ruby
Top or Show all for Ruby and Ruby on Rails

SQL and MySQL
[4493] Forgotten / lost MySQL root password
[4481] Extracting data from backups to restore selected rows from MySQL tables
[4436] Accessing a MySQL database from Python with mysql.connector
[4406] Fixing damaged MySQL tables - Error 1712 and Error 2013
[4390] Checking MySQL database backups have worked (not failed)
Top or Show all for SQL and MySQL

Tcl, Tcl/Tk and Expect
[4762] Coverage map in Tcl - how many times has each proc been called?
[4678] Expect with Ruby - a training example to get you started
[4616] Still teaching Tcl in 2016?
[4525] What does Tcl do if you try to run a command that is not defined?
[4524] Tcl - a new example for data reformatting
Top or Show all for Tcl, Tcl/Tk and Expect

Programming in Lua
[4753] Lua, Tcl, Python, C and C++ courses - at our Melksham HQ or on your site - forward from July 2017
[4575] Learning not just what a program does, but how to design it in the first place.
[4574] repeat until in Lua - a one or more rather than a zero or more loop
[4573] Classic style OO code - in Lua
[4572] Tables with values and code in Lua - looks like an object?
Top or Show all for Programming in Lua

Python Programming
[4724] From and Import in Python - where is the module loaded from?
[4723] Conditional operators in Python
[4722] Embedding more complex code into a named block
[4721] When to check an object type - Python isinstance example
[4719] Nesting decorators
Top or Show all for Python Programming

And also ...
[4768] 2017 - the final six months
[4767] Some thoughts on 2017, and looking forward to 2018
[4761] Looking forward to the autumn.
[4759] Sale of effects and furniture - 12th and 13th August 2017
[4756] Learning how to be a more effective community partner
Top or Show all for And also ...

Public Transport
[4770] GW franchise - my response
[4765] Breich Station - current pictures, and future options
[4764] Some thoughts on the closure proposal for Breich station
[4760] Rotary Talk, 25/7/2017
[4727] Learning from travelling further afield
Top or Show all for Public Transport

Fun and Flames
[4392] Interview conditions,and other instructions to staff
[4354] Wiltshire Police - assuming someone is guilty just on the say-so of a member of the public?
[4329] Does Santa Claus need a CRB check?
[4304] Please do not ask me to be the chair!
[4282] On tipping - and the expectation of a tip
Top or Show all for Fun and Flames

Keynote Articles
[2483] Clustering on Tomcat
[2384] Looking ahead to the Autumn season of training and accommodation
[2144] Looking for a career change - Physician to Web Site Designer
[1955] How to avoid duplicating web page maintainance
[1857] November and December Public Course Schedule
Top or Show all for Keynote Articles

Unclassfied Articles
[4766] Moving on from Sunnyside and Devizes
[4758] Even more images!
[4757] Images ... continued
[4733] Python examples - updates under way
[4732] Reviewing TransWilts performance 2015-16
Top or Show all for unclassified

Public Transport Training from Well House Consultants And also ... Tcl, Tcl/Tk and Expect Programming in Lua Python Programming Well House Manor - Hotel and Training Centre Apache HTTP and Tomcat Servers The Perl Programming Language and its use Ruby and Ruby on Rails PHP - the language and its application C and C++ Programming Linux and Shell Programming Melksham SQL and MySQL For the Webmaster, Postmaster and moderator Java and the Java Environment Fun and Flames Running a training and hotel company Around, about and nearby to Wiltshire Client Side Languages (HTML, CSS, Javascript) Keynote Articles General Programming Topics

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?

go to Top or other editions March 2024January 2024November 2023September 2023July 2023May 2023March 2023January 2023November 2022 • this is the current edition


Training sample © 2024, WELL HOUSE CONSULTANTS LTD
This is http://www.wellho.net/demo/newsletter.php
Well House Manor • 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
Phone: +44 (0) 1225 708 225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net