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• Setting up a web developer lab for learning purposes

  - by Saleh Al-Abbas

  I'm not a developer by profession. Therefore, I'm not exposed to real world technical problems that face professional developers. I read/heard about web farms, integration between different systems, load balancing ... etc. Therefore, I was wondering if there are ways for the individual developer to create an environment that simulates real world situations with minimal number of machines like: web farms & caching simulating many users accessing your website (Pressure tests?) Performance load balancing anything you think I should consider. By the way, I have a server machine and 1 PC. and I don't mind investing in tools and software. PS. I'm using Microsoft technologies for development but I hope this is not a limiting factor. Thanks

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• How to simulate a mouse click in Cocoa for the iPhone?

  - by eagle

  I'm trying to setup automated unit tests for an iPhone application. I'm using a UIWebBrowser and need to simulate clicks on different links. I've tried doing this with JavaScript, but it doesn't produce the same results as when the I manually click on the links. The main problem is with links that have their target property set. I believe the only way for this automated unit test to work correctly is to simulate a mouse click at a specific x/y coordinate (i.e. where the link is located). Since the unit testing will only be used internally, private API calls are fine. It seems like this should be possible since the iPhone app isimulate seems to do something similar. Is there any way to do this in the framework?

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• What is the correct way to unit test areas around exceptions

  - by Codek

  Hi, Looking at our code coverage of our unit tests we're quite high. But the last few % is tricky because a lot of them are catching things like database exceptions - which in normal circumstances just dont happen. For example the code prevents fields being too long etc, so the only possible database exceptions are if the DB is broken/down, or if the schema is changed under our feet. So is the only way to Mock the objects such that the exception can be thrown? That seems a little bit pointless. Perhaps it's better to just accept not getting 100% code coverage? Thanks, Dan

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• Is there a way to know in VB.NET if a handler has been registered for an event?

  - by Seth Spearman

  In C# I can test for this... public event EventHandler Trigger; protected void OnTrigger(EventArgs e) { if (Trigger != null) Trigger(this, e); } Is there a way to do this in VB.NET? Test for null I mean? MORE INFO I forgot to mention. I have classes written in C# but I am writing my unit tests in VB.NET. I am trying this in the unit test... If myObject.Trigger IsNot Nothing Then 'do something End If This is causing a compile time error which says ... "Public Event Trigger is an Event and cannot be called directly. Use the RaiseEvent statement to raise an event." Seth

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• Java HTTP Client Request with defined timeout

  - by Maxim Veksler

  Hello, I would like to make BIT (Built in tests) to a number of server in my cloud. I need the request to fail on large timeout. How should I do this with java? Trying something like the below does not seem to work. public class TestNodeAliveness { public static NodeStatus nodeBIT(String elasticIP) throws ClientProtocolException, IOException { HttpClient client = new DefaultHttpClient(); client.getParams().setIntParameter("http.connection.timeout", 1); HttpUriRequest request = new HttpGet("http://192.168.20.43"); HttpResponse response = client.execute(request); System.out.println(response.toString()); return null; } public static void main(String[] args) throws ClientProtocolException, IOException { nodeBIT(""); } } -- EDIT: Clarify what library is being used -- I'm using httpclient from apache, here is the relevant pom.xml section org.apache.httpcomponents httpclient 4.0.1 jar

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• When to use a module, and when to use a class

  - by Matt Briggs

  I am currently working through the Gregory Brown Ruby Best Practices book. Early on, he is talking about refactoring some functionality from helper methods on a related class, to some methods on module, then had the module extend self. Hadn't seen that before, after a quick google, found out that extend self on a module lets methods defined on the module see each other, which makes sense. Now, my question is when would you do something like this module StyleParser extend self def process(text) ... end def style_tag?(text) ... end end and then refer to it in tests with @parser = Prawn::Document::Text::StyleParser as opposed to just using a class with some class methods on it? is it so that you can use it as a mixin? or are there other reasons I'm not seeing?

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• What are some good books on software testing/quality?

  - by mjh2007

  I'm looking for a good book on software quality. It would be helpful if the book covered: The software development process (requirements, design, coding, testing, maintenance) Testing roles (who performs each step in the process) Testing methods (white box and black box) Testing levels (unit testing, integration testing, etc) Testing process (Agile, waterfall, spiral) Testing tools (simulators, fixtures, and reporting software) Testing of embedded systems The goal here is to find an easy to read book that summarizes the best practices for ensuring software quality in an embedded system. It seems most texts cover the testing of application software where it is simpler to generate automated test cases or run a debugger. A book that provided solutions for improving quality in a system where the tests must be performed manually and therefore minimized would be ideal.

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• Hudson, C++ and UnitTest++

  - by Gilad Naor

  Has anyone used Hudson as a Continuous-Integration server for a C++ project using UnitTest++ as a testing library? How exactly did you set it up? I know there have been several questions on Continuous Integration before, but I hope this one has a narrower scope. EDIT: I'll clarify a bit on what I'm looking for. I already have the build set to fail when the Unit-Tests fail. I'm looking for something like Hudson's JUnit support. UnitTest++ can create XML reports (See here). So, perhaps if someone knows how to translate these reports to be JUnit compatible, Hudson will know how to eat it up?

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• Integrate test process with Rspec and Cucumber in a plugin using Desert

  - by Romain Endelin

  Hello, I'm developing some rails plugins with desert, and I would like to use tests with RSpec and Cucumber in the development. RSpec is integrated by default in Desert plugins, but it gives me some bugs. Finally I have created a minimal application which use my plugin, and I try to test it like a normal application without plugin. But I dislike that solution, the plugin lost its modularity, and RSpec still returns me some bugs (he can't find the models/views/controllers located in the plugin...). So am I the only one who try to test a Desert plugin (or even in a classic plugin) ? May anyone know those matters and get a solution ?

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• How do I wait until a console application is idle?

  - by Anthony Mastrean

  I have a console application that starts up, hosts a bunch of services (long-running startup), and then waits for clients to call into it. I have integration tests that start this console application and make "client" calls. How do I wait for the console application to complete its startup before making the client calls? I want to avoid doing Thread.Sleep(int) because that's dependent on the startup time (which may change) and I waste time if the startup is faster. Process.WaitForInputIdle works only on applications with a UI (and I confirmed that it does throw an exception in this case). I'm open to awkward solutions like, have the console application write a temp file when it's ready.

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• Is there a lightweight multipart/form-data parser in C or C++?

  - by Hongli

  I'm looking at integrating multipart form-data parsing in a web server module so that I can relieve backend web applications (often written in dynamic languages) from parsing the multipart data themselves. The multipart grammar (RFC 2046) looks non-trivial and if I implement it by hand a lot of things can go wrong. Is there already a good, lightweight multipart/form-data parser written in C or C++? I'm looking for one with no external dependencies other than the C or C++ standard library. I don't need email attachment handling or buffered I/O classes or a portability runtime or whatever, just multipart/form-data parsing. Things that I've considered: GMime - depends on glib, so no go. libapreq - too large, depends on APR, badly documented, no unit tests. I've also looked at writing a parser with Ragel, but I can't figure out how to do it because the grammar is not static: the boundary can change arbitrarily.

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• Help finding table cell using locator after tableCellAddress finds the cell

  - by Greg Weinman

  Hi All, I have a JSP page populated by javascript resulting in a typical table element cascade . After population I see the text I want using getTable("tableLister.listTable.1.1") The table also has a class=clsDisplayTableBody. I want to click the check box in column 0 for the row of interest. However, all of these tests fail isElementPresent("//*[text()="+cellContents+"]/../td[0]")) isElementPresent("//table[@class='clsDisplayTableBody']//tr[1]/td[0]")) isElementPresent("css='clsDisplayTableBody' tr:nth-child(1) td:nth-child(0)")) isElementPresent("//xpath=id('tableLister.listTable')/descendant::tr[1]/descendant::td[0]")) isElementPresent("//table[@id='tableLister.listTable']//tbody/tr[1]/td[0]")) isElementPresent("//table[@id='tableLister.listTable']//tr[1]/td[0]")) Is there anything else I could try? Regards, Greg Weinman

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• Working Solo On Small Projects: Cowboy Coding The Way To Go?

  - by snicker

  I am a big advocate of agile methods when working on teams and/or large projects. However, I find that for smaller projects, when working solo, I usually start the project writing unit tests, documenting extensively, refactoring. As time wears on, I stop because I feel like I'm wasting time. I find that cowboy coding with an agile spin (testing often, writing human readable code) often works extremely well for me on small, solo projects that I don't expect others to have to work with. Do other people share my sentiment? Or do you think that one should never stick to their guns (get it? cowboys)? So the real question: Are there any agile methodologies that are particularly tailored to a solo project? (other than my "agile cowboy" method above)

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• Should integration testing of DAOs be done in an application server?

  - by HDave

  I have a three tier application under development and am creating integration tests for DAOs in the persistence layer. When the application runs in Websphere or JBoss I expect to use the connection pooling and transaction manager of those application servers. When the application runs in Tomcat or Jetty, we'll be using C3P0 for pooling and Atomikos for transactions. Because of these different subsystems, should the DAO's be tested in a fully configured application server environment or should we handle those concerns when integration testing the service layer? Currently we plan on setting up a simple JDBC data source with non-JTA (i.e. resource-local) transactions for DAO integration testing, thus no application server is involved....but this leaves me wondering about environmental problems we won't uncover.

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• Servlet request getparameter's performance

  - by Bob

  Hi, I noticed that my app is very slow sometimes, so I've done some tests. It's a very simple web app. One servlet gets some parameters than stores them. Everything's fine except one thing. It takes too long to get a parameter for the first time. It doesn't matter which parameter I try to get, but for the first time it is very slow. The strange thing is this doesn't happen always. Sometimes getting a parameter for the first time is not slow. My code looks like this request.getParameter("paramName"); request.getParameter("paramName2"); request.getParameter("paramName3"); Getting "paramName" is slow. Getting the others is very fast. By slow I mean : 200-800 millisec By very fast I mean: ~0 millisec (in the code snippet, I didn't write the performance test, but I'm using System.currentTimeMillis())

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• How do I test if a variable is a number in bash?

  - by Flávio Amieiro

  I just can't figure out how do I make sure an argument passed to my script is a number or not. All I want to do is something like this: test *isnumber* $1 && VAR=$1 || echo "need a number" Any help? UPDATE: I managed (whit Charles' help) to do it, but I'm not yet sure it's the best way to do that (even though it worked on my tests). This is how it ended up: [[ $1 =~ "^[0-9]+$" ]] && echo "numero" && exit 0 || echo "nao numero" && exit 1

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• TreeNodes don't get collected with weakevent solution

  - by Marcus

  Hi, When I use this method http://stackoverflow.com/questions/1089309/weak-events-in-net (by Egor) to hook up a event i a inherited treenode, the tree node never gets collected, is there any speciall case with tree nodes and GC? public class MyTreeNode : TreeNode { public MyTreeNode(Entity entity) { entity.Children.ListChanged += new ListChangedEventHandler(entityChildren_ListChanged).MakeWeak(eh => entity.Children.ListChanged -= eh); } } Entity.Children is a bindinglist. I made tests with a destructor on MyTreeNode and invoking GC.Collect(), with the weak eventhandler the treenode never gets collected but i DOES get collected WIHTOUT the weak eventhandler.

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• how to compare between Doctrine & Propel in symfony

  - by Patrick

  I am in the early stages of rearchitecting my company's application. The app is currently running on symfony 1.2, and I used the default ORM at the time, Propel. Symfony has since updated to 1.4 and switched default ORM to Doctrine. From my understanding, each ORM excels at particular types of database structures. Is this true or is one far and away better than the other? Are there any good methods to test which ORM would be best in my situation in a test environment using my schema (i.e.- set up dual, identical sites and run tests)?

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• In Drupal, how to change the values passed to Pathauto?

  - by Vinicius Pinto

  I have Pathauto configured to generate an alias based on the title of a node, for a specific content type. The problem is that I want to make small changes in this title before Pathauto uses it to generate the alias. The first comment in this post suggests the use of hook_token_values, but I couldn't really understand how to use it, even after reading the docs. In my tests, when I implement this hook, the alias generated is always "array", which means I'm missing something. Any help? Thanks.

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• mockito mock a constructor with parameter

  - by Shengjie

  I have a class as below: public class A { public A(String test) { bla bla bla } public String check() { bla bla bla } } The logic in the constructor A(String test) and check() are the things I am trying to mock. I want any calls like: new A($$$any string$$$).check() returns a dummy string "test". I tried: A a = mock(A.class); when(a.check()).thenReturn("test"); String test = a.check(); // to this point, everything works. test shows as "tests" whenNew(A.class).withArguments(Matchers.anyString()).thenReturn(rk); // also tried: //whenNew(A.class).withParameterTypes(String.class).withArguments(Matchers.anyString()).thenReturn(rk); new A("random string").check(); // this doesn't work But it doesn't seem to be working. new A($$$any string$$$).check() is still going through the constructor logic instead of fetch the mocked object of A.

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• How do I run a vim script that alters the current buffer?

  - by Dan

  I'm trying to write a beautify.vim script that makes C-like code adhere to a standard that I can easily read. My file contains only substitution commands that all begin with %s/... However, when I try to run the script with my file open, in the manner :source beautify.vim, or :runtime beautify.vim, it runs but all the substitute commands state that their pattern wasn't found (patterns were tested by entering them manually and should work). Is there some way to make vim run the commands in the context of the current buffer? beautify.vim: " add spaces before open braces sil! :%s/\%>1c>\s\@<!{/ {/g " beautify for sil! :%s/for *( *\([^;]*\) *; *\([^;]*\) *; *\([^;]*\) *)/for (\1; \2; \3)/ " add spaces after commas sil! :%s/,\s\@!/, /g In my tests the first :s command should match (it matches when applied manually).

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• I'm starting a new project in Perl, how should I begin?

  - by Brad Gilbert

  The question is about how to start a new Perl project. How should I create the skeleton of the Project? What should the directory layout look like? How do I start testing? What build system should I use? Should I even use a build system? I have been writing Perl programs for a while now. I only started to run tests on my recent programs. I know Perl the language fairly well, now it is time to learn the way to build full blown Perl projects. I already add these to the beginning of every Perl file: use strict; use warnings; # and occasionally use autodie; I have also used Moose.

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• NHibernate Linq queries not returning data saved in the same transaction

  - by Andrew

  Hi, I have a situation where I am using NHibernate in a WCF service and using a TransactionScope for the transaction management. NHibernate enlists in the ambient transaction fine, but, any changes I make and save inside the transaction, are not visible to any queries I make while still in that transaction. So if I add an entity and session.save() it, then further on in the code, there is a linq query against that entities table, the entity I just added is not returned. Strangely this seems to work fine if I use explicit NHibernate transactions in my tests. Anyone have any ideas as to why and what I can do about it? Many thanks Andrew

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• This regx does not work only in Chrome

  - by Deeptechtons

  Hi i just put up a validation function in jScript to validate filename in fileupload control[input type file]. The function seems to work fine in FF and sometimes in ie but never in Chrome. Basically the function tests if File name is atleast 1 char upto 25 characters long.Contains only valid characters,numbers [no spaces] and are of file types in the list. Could you throw some light on this function validate(Uploadelem) { var objRgx = new RegExp(/^[\w]{1,25}\.*\.(jpg|gif|png|jpeg|doc|docx|pdf|txt|rtf)$/); objRgx.ignoreCase = true; if (objRgx.test(Uploadelem.value)) { document.getElementById('moreUploadsLink').style.display = 'block'; } else { document.getElementById('moreUploadsLink').style.display = 'none'; } }

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• An algorithm Problem

  - by Vignesh

  For coverage, I've a set of run time variables of from my program execution. It happens that I get it from a series of executions(Automated testing). ie. its a vector<vector<var,value>> I've a limited set of variables with expected values and generate combination s, that is I have vector<vector<var,value>(smaller than the execution vector)>. Now I need to compare and tell which of the combination I generated were exactly executed in one of the tests. My algo is O(n^4). Is there any way to bring it down. Something like set intersection. I'm using java, and vectors because of thread safety.

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