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• needing storage integrity (write/read) test - for BASH

  - by Mr. Bash

  In need of shell scripts / bash commands to verify data integrity of local harddrives, usb-drives, etc, ... Like the famous www.heise.de/download/h2testw; or something that is at least common within repositories. (h2testw writes a specific datastring over and over onto the medium, then reads it again to verify if it was written correctly and displays write/read time/speed.) please no dd if=/dev/random of=/dev/sdx bs=1k && dd if=/dev/sdx of=/dev/null bs=1k since it won't verify if everything was written correctly. It is only a test if read/write is successful to the device. So far, I'm not too happy with badblocks -w -v /dev/sdx1 either, since it seems rather slow and I don't know what it exactly writes, and if it considers wear-leveling on flash media. There is also a program named F3 http://oss.digirati.com.br/f3/ that needs to be compiled. Designed after h2testw, the concept sounds interesting, i'd just rather have it as a ready to go bash script.

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• Test whether svn REPO changes are reflected in Working Copy

  - by user492160

  Requirement Changes will be made to the REPO directory and this should get updated to wc(working copy) as opposed to the normal way of WC REPO. Senario: My svn repo- /var/www/svn/drupal My checkout-dir/working-copy- /var/www/html/drupalsite So I've done: edited post-commit hook to contain: "/usr/bin/svn update /var/www/html/drupalsite" I won't make any change to svn WC. I'll make changes to svn REPO- /var/www/svn/drupal. After changes are made to svn repo, run "svn commit /var/www/html/drupalsite". This will trigger the post-commit hook. This inturn will run "svn update /var/www/svn/drupal" and thus my WC will get updated with the changes of REPO. Query a. Would the above steps 1-3 help achieve my 'Requirement'? b. I'd need advise on how to test if the above setup works successfully or not. I'm at loss about the success of steps 1-3 the reason why query(a) is present. This is a bit more of a concern for me. NB: I'm new to subversion. Whatever I've configured till now have been done by reading articles online. Reason for query (b) is because I'm not into development. It seems to be a php drupal website and I happen to be setting it up. So I'm not aware as to how to make a "PROPER" change in REPO so that it gets reflected in WC. If reflected, my configs are right and the team can start on development. I manually put a random file/folder into REPO dir for seeing a change in WC and ran steps 1-3 but was of no avail and later on learned that it was NOT the way to make a change to a REPO. Pleas advise. Thanks

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• Acronis Disk Director AFTER Clone Disk error: PXE-E61: Media test failure, check cable

  - by Kairan

  Used Acronis Disk Director on my desktop, plugged in the laptop drive 240GB SSD (USB) and the new hard drive 500GB SSD (usb) and the copy seemed to be fine. I didnt see any error messages but I didnt stare at it for 3 hours either. The clone disk of course the Toshiba hidden restore partition, the primary partition C drive and the active (boot?) partition and yes, did check box for copy NT signature. The computer boots up fine most of the time, but it seems that when the computer goes to sleep (i believe its sleep, hard to do much testing during school) or hibernate or reboot it will sometimes display this message: Intel(R) Boot Agent GE v1.3.52 Copyright (C) 1997-2010, Intel Corporation PXE-E61: Media test failure, check cable PXE-M0F: Exiting Intel Boot Agent Insert system disk in drive. Press any key when ready... Of course any key does nothing but repeat a similar method. However, if I press the power button on the laptop (Toshiba Portege R705, Win 7 Pro 64-bit) it puts computer into hibernate. After hibernating I press power button again and it comes out of hibernation without any odd messages or problems described above... so apparently that is my TEMP fix. Another recent issue I noticed is on occasion when creating a new folder or modifying something in the system variables, other random areas I will get a message: "The Stub received bad data" and simply retry the task and it works. Perhaps these two issues are linked.

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• Simulate SNMP traps to test surveillance

  - by jishi

  I'm trying to use Net-SNMP on Windows to emulate a trap that should trigger an alarm on our surveillance system. This is the setup: Windows 7 client that sends the trap Net-SNMP as software for sending the trap Linux with Adventnet ManageEngine OpManager as NMS (not relevant) This is what I'm trying to accomplish send trap with OID .1.3.6.1.4.1.5089.1.0.1 (according to the MIB I have loaded into my NMS) and just some sort of message into it to see if I can get any alarm in my NMS. I can see that I actually send a trap in my firewall, but I have no idea what it contains. This is my attempt so far: snmptrap.exe -v 2c -c xxxxxxx 192.168.100.65 '' 6 0 .1.3.6.1.4.1.5089.1.0.1 s "123456" However, I can't seem to find any reasonable documentation with examples for snmptrap. Basically, I need to know what: '' <- why do I need this? I can omit it and it will still send a trap 6 <- Enterprise gneric trap, I assume. Is this correct? 0 <- I have no idea, I need some sort of value for this .1.3.6.1.4.1.5089.1.0.1 <- the enterprise specific OID I assume, should this be followed by some more numbers s <- indicates string "123456" <- just a random test-string... This doesn't make much sense to me, and if anyone can shed some light on this I would be very grateful.

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• Test A SSH Connection from Windows commandline

  - by IguanaMinstrel

  I am looking for a way to test if a SSH server is available from a Windows host. I found this one-liner, but it requires the a Unix/Linux host: ssh -q -o "BatchMode=yes" user@host "echo 2>&1" && echo "UP" || echo "DOWN" Telnet'ing to port 22 works, but that's not really scriptable. I have also played around with Plink, but I haven't found a way to get the functionality of the one-liner above. Does anyone know Plink enough to make this work? Are there any other windows based tools that would work? Please note that the SSH servers in question are behind a corporate firewall and are NOT internet accessible. Arrrg. Figured it out: C:\>plink -batch -v user@host Looking up host "host" Connecting to 10.10.10.10 port 22 We claim version: SSH-2.0-PuTTY_Release_0.62 Server version: SSH-2.0-OpenSSH_4.7p1-hpn12v17_q1.217 Using SSH protocol version 2 Server supports delayed compression; will try this later Doing Diffie-Hellman group exchange Doing Diffie-Hellman key exchange with hash SHA-256 Host key fingerprint is: ssh-rsa 1024 aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa:aa Initialised AES-256 SDCTR client->server encryption Initialised HMAC-SHA1 client->server MAC algorithm Initialised AES-256 SDCTR server->client encryption Initialised HMAC-SHA1 server->client MAC algorithm Using username "user". Using SSPI from SECUR32.DLL Attempting GSSAPI authentication GSSAPI authentication initialised GSSAPI authentication initialised GSSAPI authentication loop finished OK Attempting keyboard-interactive authentication Disconnected: Unable to authenticate C:\>

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• How to test server throughput

  - by embwbam

  I've always used apache benchmark to try to get a rough idea of how many requests/second my server can handle. I read that it was good, and it seemed to work well. Enter node.js, which is fully event-based, so it never blocks. If I run apache benchmark on a simple hello world server it can handle 2500 requests per second or so. However, if I put a timeout in the hello world function, so that it responds after 2 seconds, apache benchmark reports a dramatically reduced throughput: about 50/s. I'm running 100 concurrent connections with ab. If I increase the concurrency, it goes up. This makes sense, because apache benchmark is basically sending out requests in batches of 100, which come back every 2 seconds. 100 requests / 2 seconds = 50 requests / second If I increase the concurrency to about 400 or 500, it starts to crash. I don't think I've hit node.js's limit, I think I'm hitting a wall in my operating system on the number of open file descriptors or sockets or something. Any way I can get a good guess about how many requests my server can handle? I want to make sure the test computer isn't the one causing the problem.

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• Configured Samba to join our domain, but logon fails from Windows machine

  - by jasonh

  I've configured a Fedora 11 installation to join our domain. It seems to join successfully (though it reports a DNS update failure) but when I try to access \\fedoraserver.test.mycompany.com I'm prompted for a password. So I enter adminuser and the password and that fails, so I try test.mycompany.com\adminuser and that too fails. What am I missing? EDIT (Update 9/1/09): I can now connect to the machine and see the shares on it (see my response to djhowell's answer) but when I try to connect, I get an error saying The network path was not found. I checked the log entry on the Fedora computer for the computer I'm connecting from (/var/log/samba/log.ComputerX) and it reads: [2009/09/01 12:02:46, 1] libads/cldap.c:recv_cldap_netlogon(157) no reply received to cldap netlogon [2009/09/01 12:02:46, 1] libads/ldap.c:ads_find_dc(417) ads_find_dc: failed to find a valid DC on our site (Default-First-Site-Name), trying to find another DC Config files as of 9/1/09: smb.conf: [global] Workgroup = TEST realm = TEST.MYCOMPANY.COM password server = DC.TEST.MYCOMPANY.COM security = DOMAIN server string = Test Samba Server log file = /var/log/samba/log.%m max log size = 50 idmap uid = 15000-20000 idmap gid = 15000-20000 windbind use default domain = yes cups options = raw client use spnego = no server signing = auto client signing = auto [share] comment = Test Share path = /mnt/storage1 valid users = adminuser admin users = adminuser read list = adminuser write list = adminuser read only = No I also set the krb5.conf file to look like this: [logging] default = FILE:/var/log/krb5libs.log kdc = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log [libdefaults] default_realm = test.mycompany.com dns_lookup_realm = false dns_lookup_kdc = false ticket_lifetime = 24h forwardable = yes [realms] TEST.MYCOMPANY.COM = { kdc = dc.test.mycompany.com admin_server = dc.test.mycompany.com default_domain = test.mycompany.com } [domain_realm] dc.test.mycompany.com = test.mycompany.com .dc.test.mycompany.com = test.mycompany.com [appdefaults] pam = { debug = false ticket_lifetime = 36000 renew_lifetime = 36000 forwardable = true krb4_convert = false } I realize that there might be an issue with EXAMPLE.COM in there, however if I change it to TEST.MYCOMPANY.COM then it fails to join the domain with a preauthentication failure. As of 9/1/09, this is no longer the case.

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• I can play "test" sounds, but no other audio works

  - by Callum

  I'm running Windows XP, and last night my PC was infected by a frustrating virus (one of those viruses that won't let you open virus checkers, etc). I finally killed it 2 hours later, but it involved some heavy duty anti-dote. One side effect is my audio is now gone. Except it's not entirely gone, because when I open the Realtek HD Audio Manager in the task bar, I can play all the "test" sounds. The speakers, the sound card, etc, are therefore working fine. But things like YouTube or Windows Media Player, there's no sound. I'm guessing there's a setting that needs to be reconfigured somewhere.. but where? Maybe relevant: One thing I did do last night was "play" with the system registry. Any help would be greatly appreciated. Thanks. SOLVED! The two hour battle with my computer virus resulted in my computer permanently thinking it was in Safe Mode, regardless of how it booted up. I was able to "fix" this by following the post by hsandler in this thread: http://www.petri.co.il/forums/showthread.php?t=23032&page=2 I then rebooted.. and let me tell you, the Windows Startup music has never sounded so sweet. Thanks to all, especially James, whose advice gave me a major clue as to what the problem was.

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• How to test/debug bad network wiring?

  - by Jack Lloyd

  I recently bought a place already wired with Cat 5E (8 ports, leading to a central closet). However attempting to get link, nothing works. On closer examination, it was obvious that the ends in the closet were wired backwards (brown on pin 1, etc). The jacks that I've pulled out of the wall do look to be correctly done. However, testing with a network cable tester shows zero link between any of the jacks and any of the ports in the closet - I had expected to just see a 1/8, 2/7, ... 8/1 mismatch, but instead get nothing at all. The runs are accessible and look neat, though they take some bends that seem quite sharp and are in some cases much longer than they need to be (the person who put this in was a professional electrician but I suspect this was the first time he ran network cabling). My best guess at this point is that he either bought bad cable, or put so much tension on it that he snapped wires. Though it seems surprising/unlikely that I wouldn't get at least one active wire on one of the 8 lines. So, my question: is there anything else I should try or test before I go ripping out everything and running new cable?

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• Setup windows 2012 AD in Hyper-V for a Test environment

  - by hub

  Im trying to setup a Windos 2012 R2 test environment on my work computer (a laptop). I have a AD, DHCP and DNS server on server A, and a client connecting to the doman and that works. The client can ping the AD server and gets a valid IP adress. If I ping google.com from the client I get the IP adress but I dont get any responses (request time out). If i ping google.com from server A it works as it should. Server A have a connection to the Internet through a "external network switch" in hyper-v, which gets its internet from a router and the client is connected to a "internal network switch". May the poblem be that server A is behind a router? Can I make this solution to work regadless the network my laptop is connected to? At home i have one IP adress, at work its a totally different range. What I would like is to use my laptops internet connection, regardless wifi or wired, to act as incomming internet, is this possible?

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• Inexpensive (used) hardware for Xen virtualization test?

  - by Jason Antman

  Virtualization is one of the areas where I could really use some experience. I also run quite a few services (web, mail, dns, etc.) out of my home. Since most of my hardware is getting a bit old (I'm running on stuff that was surplused years ago...) I decided that it's about time I start renewing some things, and also play around with virtualization a bit more. My plan is to setup a SAN box (simple iSCSI target, relatively inexpensive gigE switch), get a pair (for starters) of new servers, and start building some new stuff with Xen, specifically planning on playing with live migration and full virtualization. Does anyone have recommendations for used, older "servers" (really anything in a rack-mount form factor, I'm not too worried about things like iLO/iLOM for the test nodes) that support VT-x/AMD-V? I'm biased to HP, but it looks like they didn't make Proliants with VT-x/Vanderpool processors until G6 (for the DL360) or so, which is way out of my price range. I'm looking in the sub-$300 range (or less, if possible), used, probably Ebay. Any recommendations are greatly appreciated. Edit:And, to catch this before the comments start coming - these are personal systems. I have first-generation Proliants still in use (I got them as corporate surplus in 05, they've been running since then, and probably were running since 01 or 02 prior to being sold). I don't need anything shiny and new - I've got a bunch of old boxes, at least one complete replacement for every model in use, and that's fine for me (and easy on the wallet).

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• Unit Testing in Entity Framework 4 - using CreateSourceQuery

  - by Adam

  There are many great tutorials on abstracting your EF4 context so that it can be tested against (without involving a DB). Two great (and similar) examples are here: http://blogs.msdn.com/b/adonet/archive/2009/12/17/walkthrough-test-driven-development-with-the-entity-framework-4-0.aspx (oops, not enough rep. points to post second URL) basically you wind up querying your repository using linq-to-objects while testing, and linq-to-entities while running, and usually they behave the same, but when you start hitting more advanced functionality, problems arise. Here's the question. When using linq-to-objects against IObjectSet (ie, unit testing), CreateSourceQuery returns null, which will probably cause your entire query to crash and burn. ie O = db.Orders.First(); O.OrderItems.CreateSourceQuery().ToList(); Is there a way to get CreateSourceQuery to just return the underlying collection, rather than null when working with collections? Unfortunately EntityCollection is sealed, and so cannot be mocked. This isn't really the end or the world if EF4 won't let you abstract things to this level, I just wanted to make sure there wasn't something I was missing.

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• Moq for Silverlight doesn't raise event

  - by Budda

  Trying to write Unit test for Silverlight 4.0 using Moq 4.0.10531.7 public delegate void DataReceived(ObservableCollection<TeamPlayerData> AllReadyPlayers, GetSquadDataCompletedEventArgs squadDetails); public interface ISquadModel : IModelBase { void RequestData(int matchId, int teamId); void SaveData(); event DataReceived DataReceivedEvent; } void MyTest() { Mock<ISquadModel> mockSquadModel = new Mock<ISquadModel>(); mockSquadModel.Raise(model => model.DataReceivedEvent += null, EventArgs.Empty); } Instead of raising the 'DataReceivingEvent' the following error is received: Object of type 'Castle.Proxies.ISquadModelProxy' cannot be converted to type 'System.Collections.ObjectModel.ObservableCollection`1[TeamPlayerData]'. Why attempt to convert mock to the type of 1st event parameter is performed? How can I raise an event? I've also tried another approach: mockSquadModel .Setup(model => model.RequestData(TestMatchId, TestTeamId)) .Raises(model => model.DataReceivedEvent += null, EventArgs.Empty) ; this should raise event if case somebody calls 'Setup' method... Instead the same error is generated... Any thoughts are welcome. Thanks

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• How can I mock this asynchronous method?

  - by Charlie

  I have a class that roughly looks like this: public class ViewModel { public ViewModel(IWebService service) { this.WebService = service; } private IWebService WebService{get;set;} private IEnumerable<SomeData> MyData{get;set;} private void GetReferenceData() { this.WebService.BeginGetStaticReferenceData(GetReferenceDataOnComplete, null); } private void GetReferenceDataOnComplete(IAsyncResult result) { this.MyData = this.WebService.EndGetStaticReferenceData(result); } . . . } I want to mock my IWebService interface so that when BeginGetStaticReferenceData is called it is able to call the callback method. I'm using Moq and I can't work out how to do this. My unit test set up code looks something like: //Arrange var service = new Mock<IWebService>(); service.Setup(x => x.BeginGetStaticReferenceData(/*.......don't know.....*/)); service.Setup(x => x.EndGetStaticReferenceData(It.IsAny<IAsyncResult>())).Returns(new List<SomeData>{new SomeData{Name="blah"}}); var viewModel = new ViewModel(service.Object); . .

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• Python Pre-testing for exceptions when coverage fails

  - by Tal Weiss

  I recently came across a simple but nasty bug. I had a list and I wanted to find the smallest member in it. I used Python's built-in min(). Everything worked great until in some strange scenario the list was empty (due to strange user input I could not have anticipated). My application crashed with a ValueError (BTW - not documented in the official docs). I have very extensive unit tests and I regularly check coverage to avoid surprises like this. I also use Pylint (everything is integrated in PyDev) and I never ignore warnings, yet I failed to catch this bug before my users did. Is there anything I can change in my methodology to avoid these kind of runtime errors? (which would have been caught at compile time in Java / C#?). I'm looking for something more than wrapping my code with a big try-except. What else can I do? How many other build in Python functions are hiding nasty surprises like this???

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• Testing system where App-level and Request-level IoC containers exist

  - by Bobby

  My team is in the process of developing a system where we're using Unity as our IoC container; and to provide NHibernate ISessions (Units of work) over each HTTP Request, we're using Unity's ChildContainer feature to create a child container for each request, and sticking the ISession in there. We arrived at this approach after trying others (including defining per-request lifetimes in the container, but there are issues there) and are now trying to decide on a unit testing strategy. Right now, the application-level container itself is living in the HttpApplication, and the Request container lives in the HttpContext.Current. Obviously, neither exist during testing. The pain increases when we decided to use Service Location from our Domain layer, to "lazily" resolve dependencies from the container. So now we have more components wanting to talk to the container. We are also using MSTest, which presents some concurrency dilemmas during testing as well. So we're wondering, what do the bright folks out there in the SO community do to tackle this predicament? How does one setup an application that, during "real" runtime, relies on HTTP objects to hold the containers, but during test has the flexibility to build-up and tear-down the containers consistently, and have the ServiceLocation bits get to those precise containers. I hope the question is clear, thanks!

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• Mocking attributes - C#

  - by bob

  I use custom Attributes in a project and I would like to integrate them in my unit-tests. Now I use Rhino Mocks to create my mocks but I don't see a way to add my attributes (and there parameters) to them. Did I miss something, or is it not possible? Other mocking framework? Or do I have to create dummy implementations with my attributes? example: I have an interface in a plugin-architecture (IPlugin) and there is an attribute to add meta info to a property. Then I look for properties with this attribute in the plugin implementation for extra processing (storing its value, mark as gui read-only...) Now when I create a mock can I add easily an attribute to a property or the object instance itself? EDIT: I found a post with the same question - link. The answer there is not 100% and it is Java... EDIT 2: It can be done... searched some more (on SO) and found 2 related questions (+ answers) here and here Now, is this already implemented in one or another mocking framework?

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• With PascalMock how do I mock a method with an untyped out parameter and an open array parameter?

  - by Oliver Giesen

  I'm currently in the process of getting started with unit testing and mocking for good and I stumbled over the following method that I can't seem to fabricate a working mock implementation for: function GetInstance(const AIID: TGUID; out AInstance; const AArgs: array of const; const AContextID: TImplContextID = CID_DEFAULT): Boolean; (TImplContextID is just an alias for Integer) I thought it would have to look something like this: function TImplementationProviderMock.GetInstance( const AIID: TGUID; out AInstance; const AArgs: array of const; const AContextID: TImplContextID): Boolean; begin Result := AddCall('GetInstance') .WithParams([@AIID, AContextID]) .ReturnsOutParams([AInstance]) .ReturnValue; end; But the compiler complains about the .ReturnsOutParams([AInstance]) saying "Bad argument type in variable type array constructor.". Also I haven't found a way to specify the open array parameter AArgs at all. Also, is using the @-notation for the TGUID-typed parameter the right way to go? Is it possible to mock this method with the current version of PascalMock at all?

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• Generating JavaScript in C# and subsequent testing

  - by Codebrain

  We are currently developing an ASP.NET MVC application which makes heavy use of attribute-based metadata to drive the generation of JavaScript. Below is a sample of the type of methods we are writing: function string GetJavascript<T>(string javascriptPresentationFunctionName, string inputId, T model) { return @"function updateFormInputs(value){ $('#" + inputId + @"_SelectedItemState').val(value); $('#" + inputId + @"_Presentation').val(value); } function clearInputs(){ " + helper.ClearHiddenInputs<T>(model) + @" updateFormInputs(''); } function handleJson(json){ clearInputs(); " + helper.UpdateHiddenInputsWithJson<T>("json", model) + @" updateFormInputs(" + javascriptPresentationFunctionName + @"()); " + model.GetCallBackFunctionForJavascript("json") + @" }"; } This method generates some boilerplace and hands off to various other methods which return strings. The whole lot is then returned as a string and written to the output. The question(s) I have are: 1) Is there a nicer way to do this other than using large string blocks? We've considered using a StringBuilder or the Response Stream but it seems quite 'noisy'. Using string.format starts to become difficult to comprehend. 2) How would you go about unit testing this code? It seems a little amateur just doing a string comparison looking for particular output in the string. 3) What about actually testing the eventual JavaScript output? Thanks for your input!

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• How to use an Audio Unit on the iPhone

  - by CodeToaster

  I'm looking for a way to change the pitch of recorded audio as it is saved to disk, or played back (in real time). I understand Audio Units can be used for this. The iPhone offers limited support for Audio Units (for example it's not possible to create/use custom audio units, as far as I can tell), but several out-of-the-box audio units are available, one of which is AUPitch. How exactly would I use an audio unit (specifically AUPitch)? Do you hook it into an audio queue somehow? Is it possible to chain audio units together (for example, to simultaneously add an echo effect and a change in pitch)? EDIT: After inspecting the iPhone SDK headers (I think AudioUnit.h, I'm not in front of a Mac at the moment), I noticed that AUPitch is commented out. So it doesn't look like AUPitch is available on the iPhone after all. weep weep Apple seems to have better organized their iPhone SDK documentation at developer.apple.com of late - now its more difficult to find references to AUPitch, etc. That said, I'm still interested in quality answers on using Audio Units (in general) on the iPhone.

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• Advanced All In One .NET Framework

  - by alfredo dobrekk

  Hi, i m starting a new project that would basically take input from user and save them to database among about 30 screens, and i would like to find a framework that will allow the maximum number of these features out of the box : .net c#. windows form. unit testing continuous integration screens with lists, combo boxes, text boxes, add, delete, save, cancel that are easy to update when you add a property to your classes or a field to your database. auto completion on controls to help user find its way use of an orm like nhibernate easy multithreading and display of wait screens for user easy undo redo tabbed child windows search forms ability to grant access to some functionnalities according to user profiles mvp/mvvm or whatever design patterns either some code generation from database to c# classe or generation of database schema from c# classes some kind of database versioning / upgrade to easily update database when i release patches to application once in production automatic control resizing code metrics analysis some code generator i can use against my entities that would generate some rough form i can rearrange after code documentation generator ... Any ideas ? I know its lot but i really would like to use existing code to build upon so i can focus on business rules. Could splitting the requirements on 3 or 4 existing open source framework be possible ? Do u have any suggestion to add to the list before starting ? What open source tools would u use to achieve these ?

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• A TDD Journey: 3- Mocks vs. Stubs; Test Frameworks; Assertions; ReSharper Accelerators

  Test-Driven Development (TDD) involves the repetition of a very short development cycle that begins with an initially-failing test that defines the required functionality, and ends with producing the minimum amount of code to pass that test, and finally refactoring the new code. Michael Sorens continues his introduction to TDD that is more of a journey in six parts, by implementing the first tests and introducing the topics of Test doubles; Test Runners, Constraints and assertions

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• How do I mock a method with an open array parameter in PascalMock?

  - by Oliver Giesen

  I'm currently in the process of getting started with unit testing and mocking for good and I stumbled over the following method that I can't seem to fabricate a working mock implementation for: function GetInstance(const AIID: TGUID; out AInstance; const AArgs: array of const; const AContextID: TImplContextID = CID_DEFAULT): Boolean; (TImplContextID is just an alias for Integer) I thought it would have to look something like this: function TImplementationProviderMock.GetInstance( const AIID: TGUID; out AInstance; const AArgs: array of const; const AContextID: TImplContextID): Boolean; begin Result := AddCall('GetInstance') .WithParams([@AIID, AContextID]) .ReturnsOutParams([AInstance]) .ReturnValue; end; But the compiler complains about the .ReturnsOutParams([AInstance]) saying "Bad argument type in variable type array constructor.". Also I haven't found a way to specify the open array parameter AArgs at all. Also, is using the @-notation for the TGUID-typed parameter the right way to go? Is it possible to mock this method with the current version of PascalMock at all? Update: I now realize I got the purpose of ReturnsOutParams completely wrong: It's intended to be used for populating the values to be returned when defining the expectations rather than for mocking the call itself. I now think the correct syntax for mocking the out parameter would probably have to look more like this: function TImplementationProviderMock.GetInstance( const AIID: TGUID; out AInstance; const AArgs: array of const; const AContextID: TImplContextID): Boolean; var lCall: TMockMethod; begin lCall := AddCall('GetInstance').WithParams([@AIID, AContextID]); Pointer(AInstance) := lCall.OutParams[0]; Result := lCall.ReturnValue; end; The questions that remain are how to mock the open array parameter AArgs and whether passing the TGUID argument (i.e. a value type) by address will work out...

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• Sorting out POCO, Repository Pattern, Unit of Work, and ORM

  - by CoffeeAddict

  I'm reading a crapload on all these subjects: POCO Repository Pattern Unit of work Using an ORM mapper ok I see the basic definitions of each in books, etc. but I can't visualize this all together. Meaning an example structure (DL, BL, PL). So what, you have your DL objects that contain your CRUD methods, then your BL objects which are "mapped" using an ORM back to your DL objects? What about DTOs...they're your DL objects right? I'm confused. Can anyone really explain all this together or send me example code? I'm just trying to put this together. I am determining whether to go LINQ to SQL or EF 4 (not sure about NHibrernate yet). Just not getting the concepts as in physical layers and code layers here and what each type of object contains (just properties for DTOs, and CRUDs for your core DL classes that match the table fields???). I just need some guidance here. I'm reading Fowler's books and starting to read Evans but just not all there yet.

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• Optimal Eclipse CDT (C++) experience in March of 2010

  - by ahoffer

  I am a student who will be using C++ next quarter. I really enjoyed using the Galileo release of Eclipse with Java and I would like to continue using Eclipse for for C++ development. I am now experimenting with C++ development on Eclipse. I am running Eclipse 3.5 SR2 with CDT 6.02. My operating system is Windows 7 and I have installed MinGW-5.1.6. Version 6.3 of GDB is installed. I have it compiling and stepping through code. However, I have the suspicion that I'm just crawling along and have yet to "shift the car out of first gear". I've spent about a week poking around on the Web to learn what constitutes and "optimal" C++ Eclipse experience. In particular, I'm interested in round-tripping with UML and unit testing. My exploration of the Web became an archeological dig. I turned up how-to articles from 2003, alternative MinGW distros, references to plugins, dead-links, more references to plugins, passionate discussions on gdb bugs, and more references to plugins. I no longer have any idea what might constitute an optimal C++ Eclipse environment. Would members of the community like to weigh-in on what they consider to be the current optimal experience for C++ development using Eclipse?

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