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• msvsmon is locking up my pdbs

  - by Sam Saffron

  During developement of my media center plugin (which has a few custom build steps to gac stuff and such) msvsmon has a rather annoying behaviour. First compilation usually goes well, but subsequent compilations complain about myplugin.pdb being locked Error 1 Unexpected error creating debug information file 'C:\Users\sam\source\myfile.PDB' -- 'C:\Users\sam\source\obj\Debug\myfile.pdb: The process cannot access the file because it is being used by another process. If I exit VS and nuke the object directory, I am able to compile again. Also, if I kill off msvsmon.exe I am able to compile again (but can not debug) Has anyone seen this error? Are there any workarounds? I already disabled live semantic errors, just in case.

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• Sample source code for processing messages of a window created by an external program?

  - by David

  I know I have to use SetWindowLongPtr with GWLP_WNDPROC and create my own WndProc that handles the message I want (such as WM_GETMINMAXINFO and modify the MINMAXINFO structure). However, because I want to do this for a window created by another program (like notepad.exe), I can't do this from my C#/WinForms program, I have to create a native C/C++ DLL that I have to inject in the the process that created the window. Can you provide a link or the sample code to do this (the native C++ DLL and the way to call it from C# and inject it into the external process)? Thank you

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• What is going on with the "return fibonacci( number-1 ) + fibonacci( number-2 )"?

  - by user1478598

  I have problem understanding what the return fibonacci( number-1 ) + fibonacci( number-2 ) does in the following program: import sys def fibonacci( number ): if( number <= 2 ): return 1 else: return fibonacci( number-1 ) + fibonacci( number-2 ) The problem is that I can't imagine how this line works: return fibonacci( number-1 ) + fibonacci( number-2 ) Does the both of the "fibonacci( number-1 )" and "fibonacci( number-2 )" being processed at the same time? or the "fibonacci( number-1 )" is the first to be processed and then the second one? I only see that processing both of them would eventually return '1' so the last result I expect to see it is a '1 + 1' = '2' I would appreciate a lot, If someone can elaborately explain the process of its calculation. I think this is a very newb question but I can't really get a picture of its process.

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• Check if key is pressed using python (a daemon in the background)

  - by Nazarius Kappertaal

  I've created a python script in which an event needs to be executed each time I press the Super (or WinKey) on my keyboard. How can one achieve this without the python process being "focused" - as it is running in the background waiting for the key to be pressed to execute the event? I've seen a lot of posts around the web showing me how to read input - but they have all required one to have the process "focused" and none have showed me how to capture the Super (or WinKey) using a python script. I'm running Ubuntu 9.10.

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• Oracle WebCenter Quiz

  - by Michael Snow

  Quiz: How many of the following business necessities can you accomplish with Oracle WebCenter? a) Employee On-boarding b) Policies & Procedures c) Regulatory Compliance d) Sales Enablement Dashboards e) Secure Deal Collaboration f) Document & IP Management g) Accounts Payable h) Records Management i) Claims Processing j) Marketing and Brand Management k) Call Center & HelpDesk l) Contract Management m) Collaborative Content Contribution and Sharing Environment n) Enterprise Application, Desktop and Office integration o) Share Content Across Intranet And Extranets p) Combine Content In Composite Applications q) Subject Matter Expert Location r) Personalize Recommendations of Spaces, Documents, Wikis, Blogs, and Topics s) Collaborative Community Websites t) Marketing Driven Websites u) Strategic Web Experience Management v) Online Engagement Optimization w) Create Targeted Online Experiences x) Manage Interactive Social Experiences y) Optimize Multi-Channel Customer Experiences z) End-User Personalization & Syndication aa) ALL OF THE ABOVE!!!  (HINT: CHOOSE THIS ONE!!) bb) NONE OF THE ABOVE Learn More - Join us for a Webcast   Do More with Oracle WebCenter – Expand Beyond Content Management

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• Is there a better approach in migrating SIT SVN to UAT SVN?

  - by huahsin68

  In web development, given a same piece of source code, and being deploy to SIT (system integration testing) SVN/WAS and UAT (user acceptance testing) SVN/WAS. Please take note that I am using Jenkins to build everything. I have already ensured the transition from SIT SVN to UAT SVN are sync by doing manual diff on the 2 directory. Usually I will ensure the SIT WAS is working fine then only deploy to UAT WAS. But now there is a problem show up in UAT WAS and it is working fine in SIT WAS. I am suspecting there is a migration fault happened between SIT SVN to UAT SVN. In such a given scenario, is there a better approach to handle this problem?

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• How to get visitors for a community site

  - by Dofs

  I am in the process of creating a small community for car owners. I am still in the development process, but was wondering how to get users to visit the site when it is done. My main focus is the forum, and you probably all know that, nobody wants to visit a dead forum. I was thinking of two options on how to start the community: Advertising on the internet. Creating fake posts by myself The problem is to get the first few people using the forum, and I want to know if any of you guys have some experience doing it?

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• Multiple webservices in 1 ear/ejb project

  - by arinte

  We have a ejb project (which is in an ear) that shares quite a bit of code between 2 webservices. The classes that the webservices expose are in different packages but they have different names. For example Web service1 com.d.trunk.Response WS1.process( com.d.trunk.Input ); Web service2 com.d.fwd.Response WS2.process( com.d.fwd.Input ); So this builds fine, but when we deploy and we view the generated wsdl and the generated xsd things begin to go a bit haywire. So if we look at web service 2 it generates the wsdl and xsd as we expect. But when we look at ws 1's wsdl for some reason it includes the xsd from the ws 2 and its own xsd. And its own xsd are missing key types like the Response type. Is this an issue because we have 2 web services in 1 ejb project? Or some config issue with Netbeans 6.7.1 and glassfish v2?

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• How to convert raw_input() into a directory?

  - by Azeworai

  Hi everyone, I just picked up IronPython and I've been trying to get this IronPython script going but I'm stuck at trying to get a Path input from raw_input to be a directory path. The first block of code is the broken one that I'm working on. import System from System import * from System.IO import * from System.Diagnostics import * inputDirectory = raw_input("Enter Input Directory's full path [eg. c:\\vid\\]: ") print ("In: "+inputDirectory) outputDirectory = inputDirectory +"ipod\\" print ("Out: "+outputDirectory) #create the default output directory for s in DirectoryInfo(inputDirectory).GetFiles("*.avi"): print s.FullName arg = String.Format('-i "{0}" -t 1 -c 1 -o "{1}" --preset="iPod"' , s.FullName, outputDirectory + s.Name.Replace(".avi", ".mp4")) print arg proc = Process.Start("C:\\Program Files\\Handbrake\\HandBrakeCLI.exe", arg) #path to handbrake goes here proc.WaitForExit() The following code block is what I have working at the moment. import System from System import * from System.IO import * from System.Diagnostics import * for s in DirectoryInfo("F:\\Tomorrow\\").GetFiles("*.avi"): arg = String.Format('-i "{0}" -t 1 -c 1 -o "{1}" --preset="iPod"' , s.FullName, "F:\\Tomorrow\\ipod\\" + s.Name.Replace(".avi", ".mp4")) print arg proc = Process.Start("C:\\Program Files\\Handbrake\\HandBrakeCLI.exe", arg) #path to handbrake goes here proc.WaitForExit() PS: Credit for the above working code goes to Joseph at jcooney.net

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• nginx reverse proxy cannot access apache virtual hosts

  - by Sc0rian

  I am setting up nginx as a reverse proxy. The server runs on directadmin and lamp stack. I have nginx running on port 81. I can access all my sites (including virtual ips) on the port 81. However when I forward the traffic from port 80 to 81, the virtual ips have a message saying "Apache is running normally". Server IPs are fine, and I can still access virtual IP's on 81. [root@~]# netstat -an | grep LISTEN | egrep ":80|:81" tcp 0 0 <virtual ip>:81 0.0.0.0:* LISTEN tcp 0 0 <virtual ip>:81 0.0.0.0:* LISTEN tcp 0 0 <serverip>:81 0.0.0.0:* LISTEN tcp 0 0 :::80 :::* LISTEN apache 24090 0.6 1.3 29252 13612 ? S 18:34 0:00 /usr/sbin/httpd -k start -DSSL apache 24092 0.9 2.1 39584 22056 ? S 18:34 0:00 /usr/sbin/httpd -k start -DSSL apache 24096 0.2 1.9 35892 20256 ? S 18:34 0:00 /usr/sbin/httpd -k start -DSSL apache 24120 0.3 1.7 35752 17840 ? S 18:34 0:00 /usr/sbin/httpd -k start -DSSL apache 24495 0.0 1.4 30892 14756 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24496 1.0 2.1 39892 22164 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24516 1.5 3.6 55496 38040 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24519 0.1 1.2 28996 13224 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24521 2.7 4.0 58244 41984 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24522 0.0 1.2 29124 12672 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24524 0.0 1.1 28740 12364 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24535 1.1 1.7 36008 17876 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24536 0.0 1.1 28592 12084 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24537 0.0 1.1 28592 12112 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24539 0.0 0.0 0 0 ? Z 18:35 0:00 [httpd] <defunct> apache 24540 0.0 1.1 28592 11540 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL apache 24541 0.0 1.1 28592 11548 ? S 18:35 0:00 /usr/sbin/httpd -k start -DSSL root 24548 0.0 0.0 4132 752 pts/0 R+ 18:35 0:00 egrep apache|nginx root 28238 0.0 0.0 19576 284 ? Ss May29 0:00 nginx: master process /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf apache 28239 0.0 0.0 19888 804 ? S May29 0:00 nginx: worker process apache 28240 0.0 0.0 19888 548 ? S May29 0:00 nginx: worker process apache 28241 0.0 0.0 19736 484 ? S May29 0:00 nginx: cache manager process here is my nginx conf: cat /usr/local/nginx/conf/nginx.conf user apache apache; worker_processes 2; # Set it according to what your CPU have. 4 Cores = 4 worker_rlimit_nofile 8192; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] ' '"$request" $status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; server_tokens off; access_log /var/log/nginx_access.log main; error_log /var/log/nginx_error.log debug; server_names_hash_bucket_size 64; sendfile on; tcp_nopush on; tcp_nodelay off; keepalive_timeout 30; gzip on; gzip_comp_level 9; gzip_proxied any; proxy_buffering on; proxy_cache_path /usr/local/nginx/proxy_temp levels=1:2 keys_zone=one:15m inactive=7d max_size=1000m; proxy_buffer_size 16k; proxy_buffers 100 8k; proxy_connect_timeout 60; proxy_send_timeout 60; proxy_read_timeout 60; server { listen <server ip>:81 default rcvbuf=8192 sndbuf=16384 backlog=32000; # Real IP here server_name <server host name> _; # "_" is for handle all hosts that are not described by server_name charset off; access_log /var/log/nginx_host_general.access.log main; location / { proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_pass http://<server ip>; # Real IP here client_max_body_size 16m; client_body_buffer_size 128k; proxy_buffering on; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 120; proxy_buffer_size 16k; proxy_buffers 32 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } location /nginx_status { stub_status on; access_log off; allow 127.0.0.1; deny all; } } include /usr/local/nginx/vhosts/*.conf; } here is my vhost conf: # cat /usr/local/nginx/vhosts/1.conf server { listen <virt ip>:81 default rcvbuf=8192 sndbuf=16384 backlog=32000; # Real IP here server_name <virt domain name>.com ; # "_" is for handle all hosts that are not described by server_name charset off; access_log /var/log/nginx_host_general.access.log main; location / { proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_pass http://<virt ip>; # Real IP here client_max_body_size 16m; client_body_buffer_size 128k; proxy_buffering on; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 120; proxy_buffer_size 16k; proxy_buffers 32 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } } Apache config: <VirtualHost xxxxxx:80 > ServerName www.<domain>.com ServerAlias www.<domain>.com <domain>.com ServerAdmin webmaster@<domain>.com DocumentRoot /home/<domain>/domains/<domain>.com/public_html ScriptAlias /cgi-bin/ /home/<domain>/domains/<domain>.com/public_html/cgi-bin/ UseCanonicalName OFF <IfModule !mod_ruid2.c> SuexecUserGroup <domain> <domain> </IfModule> <IfModule mod_ruid2.c> RMode config RUidGid <domain> <domain> RGroups apache access </IfModule> CustomLog /var/log/httpd/domains/<domain>.com.bytes bytes CustomLog /var/log/httpd/domains/<domain>.com.log combined ErrorLog /var/log/httpd/domains/<domain>.com.error.log <Directory /home/<domain>/domains/<domain>.com/public_html> Options +Includes -Indexes php_admin_flag engine ON php_admin_value sendmail_path '/usr/sbin/sendmail -t -i -f <domain>@<domain>.com' </Directory> <virtual ip address>:80 is a NameVirtualHost default server www.xx.com (/usr/local/directadmin/data/users/xx/httpd.conf:16) port 80 namevhost www.xx.com (/usr/local/directadmin/data/users/xx/httpd.conf:16) port 80 namevhost www.xx.co.uk (/usr/local/directadmin/data/users/xx/httpd.conf:107) port 80 namevhost www.xx.co.uk (/usr/local/directadmin/data/users/xx/httpd.conf:151) port 80 namevhost www.xx.co.uk (/usr/local/directadmin/data/users/xx/httpd.conf:195) <virtual ip address>:443 is a NameVirtualHost default server www.xx.com (/usr/local/directadmin/data/users/xx/httpd.conf:61) port 443 namevhost www.xx.com (/usr/local/directadmin/data/users/xx/httpd.conf:61) <server ip>:80 is a NameVirtualHost default server localhost (/etc/httpd/conf/extra/httpd-vhosts.conf:29) port 80 namevhost localhost (/etc/httpd/conf/extra/httpd-vhosts.conf:29) port 80 namevhost www.xx.co.uk (/usr/local/directadmin/data/users/admin/httpd.conf:16)

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• Server crash = How does a TCP/IP (and the browser-client) behave after this?

  - by jens

  Hello Experts, i would be thankfull for an explanation what happens with HTTP(TCP/IP) transmissions when the server crashes unexpectedly, how does the client Browser (Firefox / IE) handle this event. What happens in the following two standard cases: Clients-actively sends data: The TCP/IP Connection has been estableshed and the Client (Web-Browser) is Sending a POST Request with some data and in the middle of the process of sending the server crashes. What does this mean for the client? As far as I know TCP/IP does not "acknowledge" a send data-package so the client does not know that the server crashed. How will the client behave? (Firefox and Internet Explorer)? The Server is actively sending data: As above the tcp/ip connection has been established and the Server is sending a large website to the client (browser). In the middle of the sending-process the server crashes, so no futher packets are sent. How does the client browser react to this event (Firefox and Interne Expolrer) Thank you very much!! Jens

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• What tools are available for remote communication when working from home or with a distributed team?

  - by Ryan Hayes

  My supervisor is allowing my team to dip our toes in the water of working from home. Considering a recent aquisition of another company is requiring some employees to love this new idea which will hack up to an hour off their commute into work every morning, I really want this to succeed. In order to make it a success, we need good tools to make our lives a lot easier. We currently are set up with OpenVPN, and Team Foundation Server 2010 with SharePoint 2010, and use Live Messenger (for SharePoint integration and easier remote desktop) for IM. These are just what we use (and they are currently working well) , but you can suggest other products. So, what are some great tools that will helps us collaborate, communicate, and generally work together when we're hours apart?

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• Allow sudo on specific file from active directory group

  - by tubaguy50035

  I have an Ubuntu Server 12.04 box that has active directory integration running on it. I want to allow a certain active directory group access to execute a script as sudo. I want to do something like this: %programmers ALL=NOPASSWD: /usr/local/bin/createSambaShare.php When I log in with my active directory user and issue groups I do not see the group programmers, but I am a part of the programmers group within active directory. I've set up the group under the Unix attributes tab and given it an id of 1000 and added my user to it. My first thought was that I needed to add the group to the Ubuntu box. When I tried to do that, it told me that the programmers group already existed. What am I missing here?

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• Google I/O 2010 - Customizing Google Apps

  Google I/O 2010 - Customizing Google Apps Google I/O 2010 - Customizing Google Apps & integrating with customer environments Enterprise 201 Mike O'Brien, Matt Pruden (Appirio), Adam Graff (Genentech), Don Dodge (moderator) Learn from real life examples of customizing Google Apps to meet customer requirements. Hear from the customer (Genentech) and the System Integrator (Appirio). Explore integration issues and deployment best practices with people who have done it. Get your questions answered in this session. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 6 0 ratings Time: 52:00 More in Science & Technology

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• What's the best way to move to linux from windows for web development ?

  - by rajesh pillai

  I am primarily a programmer developing on windows based OS using c# as my primary language. I am evaluating Ubuntu Linux as an alternate platform and would like to know the best stack for doing web development on this. I had gone through the following thread Moving development from Windows to Linux but it doesn't answer my questions fully. Some of the points I am interested are outlined below PHP/Ruby/Python (What would you recommend?) Is Mono mature enough for any large scale development? Has anyone any real experience using Mono. IDE (including debugging support, intellisense, source control integration,Unit testing) Unit testing framework based on the language recommended Web framework if any. Load Testing tools Web server (I know there are many webservers, but would like to know which one is primarily used by most people) Your inputs is greatly appreciated. Thanks.

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• Php deliberately awkward?

  - by Jonathan

  I'm trying to create a login process (as people who have answered my previous question will know) But it seems impossible to create one process that will work with a desktop app and a standard website. Instead I have the login function in Usermanagement.php (which is a class, icyntk) but then in another php file (api/login.php) I have: <?php require_once '../usermanagement.php'; $m = new usermanage(); echo $m->login($_POST['username'], $_POST['password']); ?> And then I will still need to make another login.php just to be used with the login form on the website. As I can't see anyway to get the result (the echo) of the api/login.php script from the index.php file (where the login form is, it only has HTML in though) Is there anyway I can simplify this so I only need one login.php?

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• Is there OnLoad event for C# libraries?

  - by Eran Betzalel

  I want to initialize my C# library as it loads by another process, is it possible and if so - how?

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• Get status of servlet request before the response is returned

  - by Alex

  Good evening, I am in the process of writing a Java Servlet (Struts 2, Tomcat, JSP etc) which is capable of doing some fairly complex simulations. These can take up to 2 minutes to complete on the and will return a graph of the results. It is trivial to calculate the percentage of the simulation completed because the process works by repeating the same calculations 1000s of times. I would be interested to know if anyone has ever tried to use client side technology to provide any estimate of the percentage complete. I.e query the servlet processing to get the number of cycles completed at various point throughout the simulation. This could then be displayed as a bar in the client browser. Any thoughts, advice, resources would be much appreciated. Thanks, Alex

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• Need help regarding Async and fsi

  - by Stringer Bell

  I'd like to write some code that runs a sequence of F# scripts (.fsx). The thing is that I could have literally hundreds of scripts and if I do that: let shellExecute program args = let startInfo = new ProcessStartInfo() do startInfo.FileName <- program do startInfo.Arguments <- args do startInfo.UseShellExecute <- true do startInfo.WindowStyle <- ProcessWindowStyle.Hidden //do printfn "%s" startInfo.Arguments let proc = Process.Start(startInfo) () scripts |> Seq.iter (shellExecute "fsi") it could stress too much my 2GB system. Anyway, I'd like to run scripts by batch of n, which seems also a good exercise for learning Async (I guess it's the way to go). I have written some code and unfortunately it doesn't work: open System.Diagnostics let p = shellExecute "fsi" @"C:\Users\Stringer\foo.fsx" async { let! exit = Async.AwaitEvent p.Exited do printfn "process has exited" } |> Async.StartImmediate foo.fsx is just a hello world script. I'd like also to figure out if it's doable to retrieve a return code for each executing script and if not, find another way. Thanks!

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• Build Systems for PHP Web Apps

  - by macinjosh

  I want to start automating more of my web development process so I'm looking for a build system. I write mostly PHP apps on Mac OS X and deploy Linux servers over FTP. A lot of my clients have basic hosting providers so shell access to their servers is typically not available, however remote MySQL access is usually present. Here is what I want to do with a build system: When Building: Lint JavaScript Files Validate CSS Files Validate HTML Files Minify and concatenate JS and CSS files Verify PHP Syntax Set Debug/Production flags When Deploying Checkout latest version from SVN Run build process Upload files to server via FTP Run SQL scripts on remote DB I realize this is a lot of work to automate but I think it would be worth it. So what is the best way to start down this path? Is there a system that can handle builds and deploys, or should I search for separate solutions? What systems would you recommend?

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• Pipe ffmpeg to oggenc(2) with .NET

  - by acidzombie24

  I am trying to encode ogg files at -q 6/192k. ffmpeg doesnt seem to be listenting to my command ffmpeg -i blah -acodec vorbis -ab 192k -y out.ogg So i would like to use the recommended ogg encoder. It says the input must be wav or similar. I would like to pipe a wav from ffmpeg to ogg. However not only am i unsure if oggenc2 will accept input from stdin, i have no idea how to pipe one process to another inside of .net using the Process class.

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• Isolated Unit Tests and Fine Grained Failures

  - by Winston Ewert

  One of the reasons often given to write unit tests which mock out all dependencies and are thus completely isolated is to ensure that when a bug exists, only the unit tests for that bug will fail. (Obviously, an integration tests may fail as well). That way you can readily determine where the bug is. But I don't understand why this is a useful property. If my code were undergoing spontaneous failures, I could see why its useful to readily identify the failure point. But if I have a failing test its either because I just wrote the test or because I just modified the code under test. In either case, I already know which unit contains a bug. What is the useful in ensuring that a test only fails due to bugs in the unit under test? I don't see how it gives me any more precision in identifying the bug than I already had.

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• Topeka Dot Net User Group (DNUG) Meeting &ndash; April 6, 2010

  Topeka DNUG is free for anyone to attend! Mark your calendars now! SPEAKER: Troy Tuttle is a self-described pragmatic agilist, and Kanban practitioner, with more than a decade of experience in delivering software in the finance and health industries and as a consultant. He advocates teams improve their performance through pursuit of better practices like continuous integration and automated testing. Troy is the founder of the Kansas City Limited WIP Society and is a speaker at local area groups...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• VB.NET Application which can compile and run C programs

  - by Arjun Vasudevan

  These days I'm working on a VB.NET application which can be used to edit, compile and run C programs. Can someone tell me how I can call a cl.exe process from within my VB program and also that how do I run the program in the console widow itself. Presently I have only the editor ready. With that one can type in a program and save it with a ".c" extension. Now there are 2 buttons on my form - "Compile" and "Run". When the user clicks on the "Compile" button, the program should be passed to the cl.exe process and the errors should be displayed in another textbox or the DOS(black screen itself). And when the user clicks on the "Run" button, the ".exe" file which just got created should get executed.

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• Specification, modeling and programming are principially the same, right?

  - by Gabriel Šcerbák

  In formal specifications based on abstract algebraic types and equational theory you use formulas of equational theory to specify theory. System which will satisfy those constraints is called in formal logic a model. Modeling is process of creating a model, which abstracts of some aspects, which are unnecessary details for a specific case. So concrete system has to adhere to created model in observed aspects. Programming is a process of creating a program which will have specific behaviour - will perform specific algorithms - and programming languages through different paradigms enable us to think in a certain specific way, which abstracts of some details, usually machine specific ones. So could we be doing all those things at the same time, because they are principially the same? Is declarative programming the nearest attempt to do that? Could we use some sort f programming languages which will be good for programming as well as for modeling and specification?

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