Re: Load test dll dynamically at runtime

If there is no good API to use for this, then you could do the following:

Configure NUnit settings to automatically run the test suite once it is loaded.

Copy the DLL that you wish to test to a TEMPORARY path, and launch NUnit
with that path. The DLL will be loaded and tests will run.

Now simply copy different DLLs (as per user interaction) to that same temp
path. NUnit will notice the change on disk and will reload the DLL and
execute the tests (shouldn't matter that it is an entirely different assembly).

-Eric Mangold

On Tue, Aug 26, 2008 at 6:10 AM,  <[email protected]> wrote:
>
> Yes, I saw that there are many options while invoking the nunit.exe and
> supplying the command line parameters. Generally the nunit.exe takes around
> 5-7 seconds for complete invocation and loading of the particular dll. It
> would be the last option I would want to revert to beacuse switching between
> dlls from the wrapper application can be done immediately and I was hoping
> to quickly load that dll loading Nunit.
>
> This is why I dont want to kill and restart the nunit.exe once loaded by the
> application. I am looking for any way (may be through some methods or API
> from the Nunit) to be able to change the dll without resarting the exe.
>
> Regards,
> Grishma Khandwalla
>
>
>
>
>
> "Schnick, Michael" <[email protected]>
>
> 08/26/2008 03:56 PM
>
> To
> <[email protected]>, "Tom Fanning" <[email protected]>
> cc
> <[email protected]>
> Subject
> RE: [Nunit-users] Load test dll dynamically at runtime
>
>
>
>
> Is there any reason why you cannot use the actually nunit.exe (which
> provides the kind of GUI you describe).
> It seems to support some command-line parameters that indicate which DLL
> should be loaded (inputfile parameter).
>
> Calling this program from the wrapper script / wrapper application should
> bring you forward.
> Is the start time of nunit.exe really too long? Is start time of the GUI
> that crucial (compared to the length of the tests)?
>
> Best regards
> Michael
>
>
> ________________________________
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> [email protected]
> Sent: Dienstag, 26. August 2008 12:22
> To: Tom Fanning
> Cc: [email protected]
> Subject: Re: [Nunit-users] Load test dll dynamically at runtime
>
>
> Tom,
>
> I invoke the GUI from the wrapper application which in short decides which
> dll is to be invoked for testing. On the GUI it gives the user (end
> customer) the option to select the testcases, run and re-run the failed test
> cases and options like that. Also, all my test related data is displayed on
> the Console.Out and Console.Error tabs.
>
> Hence, I need some way out without touching the already written test code
> with the Nunit GUI.
>
> Thanks,
>
> Grishma
>
> "Tom Fanning" <[email protected]>
>
> 08/26/2008 03:39 PM
>
> To
> <[email protected]>
> cc
>
> Subject
> RE: [Nunit-users] Load test dll dynamically at runtime
>
>
>
>
>
>
>
> Hi Grisma
>
> Sorry for the mess my company's signature has made of the formatting.
>
> Any particular reason you need to use the GUI?
>
> Thanks
> Tom
>
>
> From: [email protected] [mailto:[email protected]]
> Sent: 26 August 2008 10:12
> To: Tom Fanning
> Cc: [email protected]
> Subject: RE: [Nunit-users] Load test dll dynamically at runtime
>
> Hi Tom,
>
> I need to use specifically the nunit.exe for its GUI.
>
> Thanks,
>
> Regards,
> Grishma Khandwalla
>
>
> "Tom Fanning" <[email protected]>
> 08/26/2008 02:18 PM
> To
> <[email protected]>, <[email protected]>
> cc
>
> Subject
> RE: [Nunit-users] Load test dll dynamically at runtime
>
>
> Check out nunit-console.exe, included in the nunit installation.
>
> Thanks
> Tom
>
>
>
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> [email protected]
> Sent: 26 August 2008 06:32
> To: Charlie Poole; [email protected]
> Subject: Re: [Nunit-users] Load test dll dynamically at runtime
>
>
> Thanks Charlie for the quick response..
>
> I think I did a bad job at specifying the problem. I want to automatically
> launch the nunit.exe, load the dll programmatically and run it (without user
> intervention like selecting the assembly from the file menu). I agree that
> multiple dlls can be loaded and executed, but from all the dlls present only
> one dll is to be loaded and executed at a time (as per user's choice done
> initially during configuration. This can be in an XML file for Nunit to
> automatically read, load the corresponding dll and run). At a time only one
> dll is running. I do not want to show the other dlls as it would seem that
> all dlls can be run one after the other which is not possible.
>
> Could you point me to any specific API's from the Nunit dll like nunit.core
> or something whose methods can help me achieve this functionality.
>
> Another approach that I was trying was to combine all the test dll methods
> into one dll having different test suites. This can be loaded in nunit.exe
> and the part I got stuck on  was how to include or exclude certain test
> suite without restarting the nunit.exe. Restarting is not an option coz it
> will lead to delays while exiting and loading the dll again.
>
> I hope you getting the essence here. My aim is to achieve as much automation
> possible.
>
> Thanks in advance,
>
> Regards,
> Grishma Khandwalla
> "Charlie Poole" <[email protected]>
> Sent by: [email protected]
> 08/25/2008 10:43 PM
>
> To
> <[email protected]>, <[email protected]>
> cc
>
> Subject
> Re: [Nunit-users] Load test dll dynamically at runtime
>
>
>
>
>
>
>
>
>
>
> Of course, I may not have understood your question, but it seems that NUnit
> already does what you want.
>
> The user can use File | Open to navigate to a particular assembly and open
> it.
>
> Dlls are closed from the menu or when loading a new one.
>
> NUnit also supports loading multiple dlls.
>
> If I misunderstood, please try again. :-)
>
> Charlie
>
>
>
> Employment Law Advisory Services Ltd
> Tom Fanning
> Senior Developer
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>
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> [email protected]
> Sent: Monday, August 25, 2008 6:20 AM
> To: [email protected]
> Subject: [Nunit-users] Load test dll dynamically at runtime
>
>
>
> Hi,
>
> I am using Nunit 2.4.7. I have many .dll files which contain a number of
> test cases. I was trying to develop an application which would allow the
> user to choose the .dll file whose test cases are then executed.
>
> I am using the Nunit GUI, which is instantiated when the application is
> initialized. I was wondering if there is any option to unload the current
> dll from the nunit.exe and load the new dll (selected by the user) into the
> same nunit.exe? (without using the manual intervention). I specifically do
> not want to close the GUI and open it again. Nor can multiple .exe files can
> be invoked.
>
> I was playing around the idea of combining all the test cases across
> multiple dlls into a single dll, but again I have no leads on how to
> dynamically mask and unmask certain suite of test cases without restarting
> the Nunit exe.
>
> Any help would be appreciated,
>
> Regards,
> Grishma Khandwalla
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