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• What is the best way to go about testing that we handle failures appropriately?

  - by Earlz

  we're working on error handling in an application. We try to have fairly good automated test coverage. One big problem though is that we don't really know of a way to test some of our error handling. For instance, we need to test that whenever there is an uncaught exception, a message is sent to our server with exception information. The big problem with this is that we strive to never have an uncaught exception(and instead have descriptive error messages). So, how do we test something what we never want to actually happen?

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• IIS SMTP unable to relay for domain on local network.

  - by MartinHN

  Hi I have a network with the following servers: EXCH01 - Exchange Server for @domain.com e-mails. TEST-REP01 - Local reporting server. Have IIS SMTP installed and configured. What happens on the TEST-REP01, is that I have a Windows Service that reads reports in a SQL server that is ready for delivery. All reports is sent one at a time, using the local SMTP server. It works perfectly, unless the recipient e-mail address is [email protected] - the domain that the EXCH01 server manages. I get the following error: Mailbox unavailable. The server response was: 5.7.1 Unable to relay for [email protected] What can I do to troubleshoot this further? I can't seem to find useful information in the SMTP log: 2011-01-05 03:01:38 192.168.8.168 TEST-REP01 SMTPSVC1 TEST-REP01 192.168.8.168 0 EHLO - +TEST-REP01 250 0 210 15 0 SMTP - - - - 2011-01-05 03:01:38 192.168.8.168 TEST-REP01 SMTPSVC1 TEST-REP01 192.168.8.168 0 MAIL - +FROM:<[email protected]> 250 0 44 31 0 SMTP - - - - 2011-01-05 03:01:38 192.168.8.168 TEST-REP01 SMTPSVC1 TEST-REP01 192.168.8.168 0 RCPT - +TO:<[email protected]> 550 0 50 28 0 SMTP - - - - 2011-01-05 03:01:38 192.168.8.168 TEST-REP01 SMTPSVC1 TEST-REP01 192.168.8.168 0 QUIT - TEST-REP01 240 0 50 28 0 SMTP - - - - 2011-01-05 03:01:38 192.168.8.168 TEST-REP01 SMTPSVC1 TEST-REP01 192.168.8.168 0 EHLO - +TEST-REP01 250 0 210 15 0 SMTP - - - - 2011-01-05 03:01:38 192.168.8.168 TEST-REP01 SMTPSVC1 TEST-REP01 192.168.8.168 0 MAIL - +FROM:<[email protected]> 250 0 44 31 0 SMTP - - - - 2011-01-05 03:01:38 192.168.8.168 TEST-REP01 SMTPSVC1 TEST-REP01 192.168.8.168 0 RCPT - +TO:<[email protected]> 550 0 50 28 0 SMTP - - - - 2011-01-05 03:01:38 192.168.8.168 TEST-REP01 SMTPSVC1 TEST-REP01 192.168.8.168 0 QUIT - TEST-REP01 240 0 50 28 0 SMTP - - - - Relay access on the local IIS (TEST-REP01) are set to allow 127.0.0.1, TEST-REP01 and other servers such as TEST-WEB01. DNS settings on the local network is not domain.com - but companyname-domain.local.

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• Who should write the test plan?

  - by Cheng Kiang

  Hi, I am in the in-house development team of my company, and we develop our company's web sites according to the requirements of the marketing team. Before releasing the site to them for acceptance testing, we were requested to give them a test plan to follow. However, the development team feels that since the requirements came from the requestors, they would have the best knowledge of what to test, what to lookout for, how things should behave etc and a test plan is thus not required. We are always in an argument over this, and developers find it a waste of time to write down things like:- Click on button A. Key in XYZ in the form field and click button B. You should see behaviour C. which we have to repeat for each requirement/feature requested. This is basically rephrasing what's already in the requirements document. We are moving towards using an Agile approach for managing our projects and this is also requested at the end of each iteration. Unit and integration testing aside, who should be the one to come up with the end user acceptance test plan? Should it be the reqestors or the developers? Many thanks in advance. Regards CK

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• 4 Places To Find Up-To-Date Antivirus Test Results Online

  - by Chris Hoffman

  Everyone wants to be using the best antivirus and wants to know how they perform, so a list of places you can find this information would be useful. It’s not really reasonable to do any testing yourself; way too time-consuming. x places you can find antivirus test results – av comparatives, av test, http://www.westcoastlabs.com/realTimeTesting/article/?articleID=1   Do you know how effective your antivirus programs is? A variety of organizations regularly compare antivirus programs, throwing a large amount of malware samples at them, seeing how they perform, and ranking them in comparison to each other. It would be very time-consuming to test 30 different antivirus programs in virtual machines with a large amoutn of malware samples yourself, which is why these test results are so useful. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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• How have Guava unit tests been generated automatically?

  - by dzieciou

  Guava has unit test cases automatically generated: Guava has staggering numbers of unit tests: as of July 2012, the guava-tests package includes over 286,000 individual test cases. Most of these are automatically generated, not written by hand, but Guava's test coverage is extremely thorough, especially for com.google.common.collect. How they were generated? What techniques and technologies were used to design and generate them?

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• Design pattern for an automated mechanical test bench

  - by JJS

  Background I have a test fixture with a number of communication/data acquisition devices on it that is used as an end of line test for a product. Because of all the various sensors used in the bench and the need to run the test procedure in near real-time, I'm having a hard time structuring the program to be more friendly to modify later on. For example, a National Instruments USB data acquisition device is used to control an analog output (load) and monitor an analog input (current), a digital scale with a serial data interface measures position, an air pressure gauge with a different serial data interface, and the product is interfaced through a proprietary DLL that handles its own serial communication. The hard part The "real-time" aspect of the program is my biggest tripping point. For example, I need to time how long the product needs to go from position 0 to position 10,000 to the tenth of a second. While it's traveling, I need to ramp up an output of the NI DAQ when it reaches position 6,000 and ramp it down when it reaches position 8,000. This sort of control looks easy from browsing NI's LabVIEW docs but I'm stuck with C# for now. All external communication is done by polling which makes for lots of annoying loops. I've slapped together a loose Producer Consumer model where the Producer thread loops through reading the sensors and sets the outputs. The Consumer thread executes functions containing timed loops that poll the Producer for current data and execute movement commands as required. The UI thread polls both threads for updating some gauges indicating current test progress. Unsure where to start Is there a more appropriate pattern for this type of application? Are there any good resources for writing control loops in software (non-LabVIEW) that interface with external sensors and whatnot?

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• How to select li range and move them inside div [closed]

  - by user8012

  How can I select a range of li and move them inside div element. For example: <ul> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> </ul> If the li is more than 6 create a column like this: <ul> <li> <div class="column1"> <ul> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> </ul> </div> </li> <li> <div class="column2"> <ul> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> <li>test</li> </ul> </div> </li> </ul>

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• Multiple Silverlight Unit Test Projects in Solution

  - by IUnknown

  I am building out a number of Silverlight 4.0 libraries that are part of the same solution. I like to break them into separate projects and have a Unit Test project for each: SolutionX -LibraryProject1 ---Class1.cs ---Class2.cs -LibraryProject1.Test ---Tests1.cs ---Tests2.cs -LibraryProject2 ---Class1.cs ---Class2.cs ---CLass3.cs -LibraryProject2.Test ---Tests1.cs ---Tests2.cs ---Tests3.cs -LibraryProject3 ---Class1.cs -LibraryProject3.Test ---Tests1.cs This works great when using VS regular test projects and infrastructure because I can create and execute list of test that are aggregated from each Test project. But with the Silverlight Unit Test Framework since the Silverlight Unit Test Project must be the "start up project" I cannot figure how to run a collection of tests from each test project in one go. I have to run each separately then switch the starting project each time. I would prefer to avoid create complex build scripts or build definitions - is there a way to run all the tests at once? -Thanks

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• How to test a 3D rendering engine?

  - by YoYo

  Me and some friends developing simple 3D rendering engine as practice for the university. We used Ogre 3d as prototype and now we are developing it from base The engine is wrapped up in simple game that asks the user to select shape (circle, triangle, square...), color and dimensions and renders the image to the screen. It also enables to move and rotate the shape on screen using mouse. We would like to test automate the view rendering. I could not find any test framework for this issue and I would like to know how 3D test is done in non manual matter

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• Programming Test

  - by Travis Webb

  We are looking to hire some more Java developers onto our team, and plan to test their coding abilities with a test. We currently use a web-based Java test that automatically compiles and runs the code, but it is very flaky and we're having problems with our candidates losing their work on this site. Not only is this frustrating for everyone, it makes us look like we don't know what we're doing. Is there a popular testing suite out there? What do you use? I'm not interested in dogmatic arguments on whether or not I should be testing my candidates in this way, I'm looking for a tool that will help me do it.

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• Setting up SANED with sane-test

  - by Enoon

  I'm trying to setup a network service for running saned (running the sane-test backend) on Ubuntu 12.10, running it on a virtualbox. I followed the directions found here: https://help.ubuntu.com/community/ScanningHowTo and i got to the point where if i use a front-end like xsane, or use the command scanimage -d test i get the desired behaviour. (i get the test image). But when i try to use the network demon to access the backend (from the localhost) i get Failed to connect. I used telnet on 127.0.0.1 6566 and i got the following error: saned: symbol lookup error: saned: undefined symbol: sanei_w_init I'm a linux newbie, so i could be making some stupid mistake. Any ideas on how to fix this? Thanks [update]After posting this question i logged out, logged back in and it worked. After a few days i tried again and it gave the same error as before. Any help?

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• Is unit testing or test-driven development worthwhile?

  - by Owen Johnson

  My team at work is moving to Scrum and other teams are starting to do test-driven development using unit tests and user acceptance tests. I like the UATs, but I'm not sold on unit testing for test-driven development or test-driven development in general. It seems like writing tests is extra work, gives people a crutch when they write the real code, and might not be effective very often. I understand how unit tests work and how to write them, but can anyone make the case that it's really a good idea and worth the effort and time? Also, is there anything that makes TDD especially good for Scrum?

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• test cases for common algorithms [on hold]

  - by Alexey

  I need samples of test inputs and correct outputs for common algorithms for sorting, searching, data structures, graphs, etc. to check for mistakes in my future implementations. Can you advice resources with test cases? Or a website with community that implements algorithms and shares with results? Thanks! Edit: to clarify: I am going to implement forementioned algorithms for studying purposes and need inputs including large ones and correct outputs to better find mistakes in my implementations, since test cases that I can come up with on my own with might not be enough to reveal mistakes.

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• How to perform a detailed and quick 3D performance test

  - by gsedej

  I am wondering how to quickly test performance of my 3D graphics. Since glxgears is not benchmark what should I use. Also glxgears sometimes stuck at 60FPS, you cannot even compare before/after driver update (e.g. adding xorg-edgers PPA). Even glxgears doesn't really work out of box. One possibility is screensavers, but you can't see FPS. I am also not willing to install 600MB nexuiz, specially if I am running on Live-CD. Other 3D games are also very big... Unigine tests are too demanding for opensource drivers (problems with too low OpenGL and probably texture compression (S3TC...)). I would also like to test OpenGL 2.x extentions. How to quickly test your 3D performance?

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• Test driven development - convince me!

  - by Casebash

  I know some people are massive proponents of test driven development. I have used unit tests in the past, but only to test operations that can be tested easily or which I believe will quite possibly be correct. Complete or near complete code coverage sounds like it would take a lot of time. What projects do you use test-driven development for? Do you only use it for projects above a certain size? Should I be using it or not? Convince me!

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• Why to let / not let developers test their own work

  - by pyvi

  I want to gather some arguments as to why letting a developer testing his/her own work as the last step before the product goes into production is a bad idea, because unfortunately, my place of work sometimes does this (the last time this came up, the argument boiled down to most people being too busy with other things and not having the time to get another person familiar with that part of the program - it's very specialised software). There are test plans in this case (though not always), but I am very much in favor of making a person who didn't make the changes that are tested actually doing the final testing. So I am asking if you could provide me with a good and solid list of arguments I can bring up the next time this is discussed. Or to provide counter-arguments, in case you think this is perfectly fine especially when there are formal test cases to test.

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• Dog-1 testing as a synonym for integration / system test

  - by SkeetJon

  In the company I'm working for the phrase Dog-1 is used for the software testing scenario where the first piece of data passes through the complete system. Has anyone heard this phrase in a similar context? There's nothing on Google about it in a software development context, so I'm guessing its a idiosyncrasy of my current environment. Is there a recognized phrase in the industry for this kind of test? I don't think it's simply a 'system test' / 'integration test' as 'Dog-1' refers specifically to the first item/unit through the system.

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• How to test 3d acceleration?

  - by HappyDeveloper

  I want to install and test 3d acceleration in Ubuntu 12. I have read these pages: https://help.ubuntu.com/community/RadeonDriver https://wiki.ubuntu.com/X/Troubleshooting/VideoDriverDetection?action=show&redirect=X%2FTroubleshooting%2FFglrxInteferesWithRadeonDriver#Problem:_Need_to_purge_-fglrx I think I have installed it correctly, but I don't know how to test it. I tried to play minecraft in the browser, but I got a black screen. It may be a java problem too, so I need to troubleshoot. So how can I test my video card and drivers?

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• career change : non-functional to test automation

  - by centennial

  I started my Career as core-Java developer 6 years ago and stayed as developer for 6-7 month and then moved to performance testing (actualy pushed into this for short term and later I started liking it). I have done all sort of non-functional testing like performance, load, stress, soak, compatibility, failover etc on many performance test tools accross many industries. I was doing contracting all these years which means I kept moving to new projects after every 3-6 months. Now personal situation has been changed, married man now so looking for something long term. Performance testing generally comes at the end of the development life cycle hence very short term contracts so I was wondering if I can move into functional/test automation side I can earn myself good length of contract. I had some exposure of QTP but I am sure to learn all other tools very quickly as I am quite good in programming and concept of testing. in short I want to move into functional test automation to get long term contract without leaving my love for programming . any thoughts please ?

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• Compiling JS-Test-Driver Plugin and Installing it on Eclipse 3.5.1 Galileo?

  - by leeand00

  I downloaded the source of the js-test-driver from: http://js-test-driver.googlecode.com/svn/tags/1.2 It compiles just fine, but one of the unit tests fails: [junit] Tests run: 1, Failures: 1, Errors: 0, Time elapsed: 0.012 sec [junit] Test com.google.jstestdriver.eclipse.ui.views.FailureOnlyViewerFilterTest FAILED I am using: - ANT 1.7.1 - javac 1.6.0_12 And I'm trying to install the js-test-driver plugin on Eclipse 3.5.1 Galileo Despite the failed test I installed the plugin into my C:\eclipse\dropins\js-test-driver directory by copying (exporting from svn) the compiled feature and plugins directories there, to see if it would yield any hints to what the problem is. When I started eclipse, added the plugin to the panel using Window-Show View-Other... Other-JsTestDriver The plugin for the panel is added, but it displays the following error instead of the plugin in the panel: Could not create the view: Plugin com.google.jstestdriver.eclipse.ui was unable to load class com.google.jstestdriver.eclipse.ui.views.JsTestDriverView. And then bellow that I get the following stack trace after clicking Details: java.lang.ClassNotFoundException: com.google.jstestdriver.eclipse.ui.views.JsTestDriverView at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:494) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:398) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105) at java.lang.ClassLoader.loadClass(Unknown Source) at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:326) at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:231) at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1193) at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:160) at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:874) at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243) at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51) at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:267) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:263) at org.eclipse.ui.internal.registry.ViewDescriptor.createView(ViewDescriptor.java:63) at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:324) at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:226) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) at org.eclipse.ui.internal.Perspective.showView(Perspective.java:2229) at org.eclipse.ui.internal.WorkbenchPage.busyShowView(WorkbenchPage.java:1067) at org.eclipse.ui.internal.WorkbenchPage$20.run(WorkbenchPage.java:3816) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.showView(WorkbenchPage.java:3813) at org.eclipse.ui.internal.WorkbenchPage.showView(WorkbenchPage.java:3789) at org.eclipse.ui.handlers.ShowViewHandler.openView(ShowViewHandler.java:165) at org.eclipse.ui.handlers.ShowViewHandler.openOther(ShowViewHandler.java:109) at org.eclipse.ui.handlers.ShowViewHandler.execute(ShowViewHandler.java:77) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:294) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241) at org.eclipse.ui.internal.ShowViewMenu$3.run(ShowViewMenu.java:141) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3880) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3473) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514) at org.eclipse.equinox.launcher.Main.run(Main.java:1311) Additionally, if I go to the settings in Window-Preferences and try to view the JS Test Driver Preferences, I get the following dialog: Problem Occurred Unable to create the selected preference page. com.google.jstestdriver.eclipse.ui.WorkbenchPreferencePage Thank you, Andrew J. Leer

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• fitnesse test framework, arbitrary properties for test and queries/test runs based on them?

  - by Marcel

  hi, our testers have the requirement to store multiple properties for a test that are not present in the "properties". e.g. they want to store priority, a description(not in the wiki page itself) and so on. they don't want to use the tagging mechanism. is there a way to store any kind of new xml node in the properties.xml for a test? these properties should then be used to: query the fields via the search screen run tests based on the "SuiteResponder" ?suite=xxx&TAGx=abc&TAGy=cde they should be returned by "?properties" responder. they should appear in the test history of the test run in essence they want to store any kind of "meta" information in the properties.xml and work with them in all kinds of ways, search, run etc. does anybody here know if there is already something available in that direction? if not i think we have to "pimp" these features into fitnesse to make our testers happy. thanks a lot any help appreciated marcel ps: i've also posted the question in the yahoo fitnesse group

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• Getting the number of fragments which passed the depth test

  - by Etan

  In "modern" environments, the "NV Occlusion Query" extension provides a method to get the number of fragments which passed the depth test. However, on the iPad / iPhone using OpenGL ES, the extension is not available. What is the most performant approach to implement a similar behaviour in the fragment shader? Some of my ideas: Render the object completely in white, then count all the colors together using a two-pass shader where first a vertical line is rendered and for each fragment the shader computes the sum over the whole row. Then, a single vertex is rendered whose fragment sums all the partial sums of the first pass. Doesn't seem to be very efficient. Render the object completely in white over a black background. Downsample recursively, abusing the hardware linear interpolation between textures until being at a reasonably small resolution. This leads to fragments which have a greyscale level depending on the number of white pixels where in their corresponding region. Is this even accurate enough? Use mipmaps and simply read the pixel on the 1x1 level. Again the question of accuracy and if it is even possible using non-power-of-two textures. The problem wit these approaches is, that the pipeline gets stalled which results in major performance issues. Therefore, I'm looking for a more performant way to accomplish my goal. Using the EXT_OCCLUSION_QUERY_BOOLEAN extension Apple introduced EXT_OCCLUSION_QUERY_BOOLEAN in iOS 5.0 for iPad 2. "4.1.6 Occlusion Queries Occlusion queries use query objects to track the number of fragments or samples that pass the depth test. An occlusion query can be started and finished by calling BeginQueryEXT and EndQueryEXT, respectively, with a target of ANY_SAMPLES_PASSED_EXT or ANY_SAMPLES_PASSED_CONSERVATIVE_EXT. When an occlusion query is started with the target ANY_SAMPLES_PASSED_EXT, the samples-boolean state maintained by the GL is set to FALSE. While that occlusion query is active, the samples-boolean state is set to TRUE if any fragment or sample passes the depth test. When the occlusion query finishes, the samples-boolean state of FALSE or TRUE is written to the corresponding query object as the query result value, and the query result for that object is marked as available. If the target of the query is ANY_SAMPLES_PASSED_CONSERVATIVE_EXT, an implementation may choose to use a less precise version of the test which can additionally set the samples-boolean state to TRUE in some other implementation dependent cases." The first sentence hints on a behavior which is exactly what I'm looking for: getting the number of pixels which passed the depth test in an asynchronous manner without much performance loss. However, the rest of the document describes only how to get boolean results. Is it possible to exploit this extension to get the pixel count? Does the hardware support it so that there may be hidden API to get access to the pixel count? Other extensions which could be exploitable would be debugging features like the number of times the fragment shader was invoked (PSInvocations in DirectX - not sure if something simila is available in OpenGL ES). However, this would also result in a pipeline stall.

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• Documentation and Test Assertions in Databases

  - by Phil Factor

  When I first worked with Sybase/SQL Server, we thought our databases were impressively large but they were, by today’s standards, pathetically small. We had one script to build the whole database. Every script I ever read was richly annotated; it was more like reading a document. Every table had a comment block, and every line would be commented too. At the end of each routine (e.g. procedure) was a quick integration test, or series of test assertions, to check that nothing in the build was broken. We simply ran the build script, stored in the Version Control System, and it pulled everything together in a logical sequence that not only created the database objects but pulled in the static data. This worked fine at the scale we had. The advantage was that one could, by reading the source code, reach a rapid understanding of how the database worked and how one could interface with it. The problem was that it was a system that meant that only one developer at the time could work on the database. It was very easy for a developer to execute accidentally the entire build script rather than the selected section on which he or she was working, thereby cleansing the database of everyone else’s work-in-progress and data. It soon became the fashion to work at the object level, so that programmers could check out individual views, tables, functions, constraints and rules and work on them independently. It was then that I noticed the trend to generate the source for the VCS retrospectively from the development server. Tables were worst affected. You can, of course, add or delete a table’s columns and constraints retrospectively, which means that the existing source no longer represents the current object. If, after your development work, you generate the source from the live table, then you get no block or line comments, and the source script is sprinkled with silly square-brackets and other confetti, thereby rendering it visually indigestible. Routines, too, were affected. In our system, every routine had a directly attached string of unit-tests. A retro-generated routine has no unit-tests or test assertions. Yes, one can still commit our test code to the VCS but it’s a separate module and teams end up running the whole suite of tests for every individual change, rather than just the tests for that routine, which doesn’t scale for database testing. With Extended properties, one can get the best of both worlds, and even use them to put blame, praise or annotations into your VCS. It requires a lot of work, though, particularly the script to generate the table. The problem is that there are no conventional names beyond ‘MS_Description’ for the special use of extended properties. This makes it difficult to do splendid things such ensuring the integrity of the build by running a suite of tests that are actually stored in extended properties within the database and therefore the VCS. We have lost the readability of database source code over the years, and largely jettisoned the use of test assertions as part of the database build. This is not unexpected in view of the increasing complexity of the structure of databases and number of programmers working on them. There must, surely, be a way of getting them back, but I sometimes wonder if I’m one of very few who miss them.

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• Test Fest Pop Quiz!

  - by Kristin Rose

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Question: Where can partners go during OPN Exchange to take complementary certification testing, and upon completing it, receive the credentials of a Certified Specialist, while having it count towards their company’s Specialization and upgrade within the OPN program? Answer: A.) Test Fest B.) Test Fest C.) All of the Above You are right! Test Fest is back by popular demand, and has been included as one of the many partner benefits for attending OPN Exchange this year. Join us from October 1-4th in the Marriott Marquis, Juniper Room at Oracle OpenWorld and get recognized! For times and registration, visit the Oracle OpenWorld Test Fest page and be sure to “study up” by watching this short video on Test Fest at Oracle OpenWorld 2012 below! Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} With over 100 exam titles and four days of sessions, you’re sure to walk away with an A+! Best of Luck, The OPN Communications Team

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• Watch Google’s I/O 2012 Developer Conference Live (Online) Starting June 27

  - by Asian Angel

  Google’s annual I/O conference begins on Wednesday this week and will be filled with exciting sessions about Android, Chrome, Google+, and more. To help you keep up with all the fun we have the links you need so that you can tune in with live streaming! Photo courtesy of Google I/O website. The keynote for Day 1 will begin at 9:30 a.m. PDT (U.S. time) and the keynote for the second day will begin at 10:00 a.m. PDT (U.S. time), so make sure to mark it on your schedule! Visit the blog post linked below for more details about signing up for Extended Events, the I/O mobile app, the liveblogging gadget, and more. SPECIAL NOTE: The Google blog post linked below was slightly ambiguous and listed both of the I/O URLs we have shown here, so make sure to keep a watch on both… How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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