Random thoughts on coding & technology

:o) Simple y concreto nos gustó

2012-05-11T18:52:24.993+02:00

:o)
Simple y concreto nos gustó

any way very good work !

2012-05-04T04:47:48.022+02:00

any way very good work !

Hello... Thanks for this info it's dificult ...

2012-05-04T04:47:01.987+02:00

Hello...

Thanks for this info it's dificult to find info on it over the web...

Any way i am making a little tool for me under delphi to monitor some applications connections.

as i am a newbie it's difficult for me to reproduce your "Thundax Netstat" could you please help me by providing me the sources ?

intikaa@hotmail.com

Thanks a lot !!!!!!!!

As I googled yes, but all the classes I search ret...

2012-04-15T01:59:20.632+02:00

As I googled yes, but all the classes I search returned nothing, also tried using the class delphi URLMON, so you do not know which service passes, passing only Safari would be the same with other browsers (Firefox, Internet Explorer) but also did not .

Sorry but only works for Chrome. I have never delv...

2012-04-15T00:37:29.479+02:00

Sorry but only works for Chrome. I have never delved into detail with Safari but I assume it should work in a similar fashion way.

Good Evening, I wonder if you're the same func...

2012-04-14T23:36:58.995+02:00

Good Evening, I wonder if you're the same function for Safari.
thank you

Thank you.

2012-04-14T19:57:07.887+02:00

Thank you.

Done!

2012-04-14T17:16:00.962+02:00

Done!

"asmProfiler" and "YAPM" point...

2012-04-14T17:05:00.219+02:00

"asmProfiler" and "YAPM" point to the same url. You should fix YAPM's link.

Brilliant Stefan. I've just seen the example a...

2012-04-11T13:38:54.299+02:00

Brilliant Stefan. I've just seen the example and this is what I was trying to achieve!.

Thanks!.

Thanks!

2012-04-11T13:07:29.817+02:00

Thanks!

I just commited an example showing what I meant. A...

2012-04-11T12:20:07.661+02:00

I just commited an example showing what I meant. As you can see it has exactly the same functionality as your example but it requires much less writing.

Thanks!!!!!!!! you are Problem Solver

2012-04-11T12:20:05.257+02:00

Thanks!!!!!!!! you are Problem Solver

Thanks Stefan!. I'm sure that in the end we c...

2012-04-10T20:57:38.669+02:00

Thanks Stefan!.

I'm sure that in the end we can get something really interesting. I'll give a try to your solution and see how can I use it. I'm still thinking of building a lightweight test framework to run test cases using TCustomAttributes as from my point of view I think it is better using the attribute rather than coding a new test. I'm thinking about the login case; imagine we have the Login(user pass) method which it's a simple method but we want to test it against different users.
So instead of writing a loop inside the test through all the users, I like the idea of leaving the responsibility to the attribute.
Anyway, I'm still thinking on this as I'm trying to make my unit tests as more readable as possible.

Jordi

Thanks, glad you like it ;) With my solution you ...

2012-04-10T20:26:18.279+02:00

Thanks, glad you like it ;)

With my solution you can easily inherit your attribute classes from TestCaseAttribute and override the constructor. Fill FValues with the passed arguments and you are done. Everything else is handled by the framework.

That reduces the actual implementation to 4 lines for each attribute (1 SetLength and 3 Assignments) and zero lines inside the test method itself which then just gets some parameters.

P.S. Be careful with the types you use in the arguments. Turned out variants are kinda broken: http://qc.embarcadero.com/wc/qcmain.aspx?d=104778

Thanks for your comment Stefan, it is always appre...

2012-04-10T14:15:03.254+02:00

Thanks for your comment Stefan, it is always appreciated. What I can say?, I take my hat off to you. I have reviewed your solution for DSharp.Testing.DUnit and I think it is brilliant.
I'm glad that at least we think alike as I wanted to achieve the same behaviour as C Sharp and you were able to mimic it better.

I agree with you on the only drawback of using your solution as it relies on the user correctly inputting the semicolon separated values. As per my solution I rely on the TCustomAttribute so there is no misunderstanding as to what values are acceptable within the attribute.

Jordi

The problem with your approach is that it requires...

2012-04-09T23:26:07.782+02:00

The problem with your approach is that it requires putting way to much stuff inside the test method itself like getting out the passed values itself.

Also it does not improve DUnit itself which is only able to execute unparameterized methods.

I did this while ago when I saw a question for exactly that on SO (http://stackoverflow.com/questions/8999945/can-i-write-parameterized-tests-in-dunit)

The only disadvantage of my solution is because attributes in delphi have very restricted kinds of parameters. Like you cannot have arrays as in .Net. So my solution uses a semicolon separated string to pass the arguments. But you can just extend the attribute class with more constructor overloads if you like.

That way you can easily write test methods that take parameters and specify the parameters in the attributes as in .Net as you showed at the beginning. And actually it makes the test code itself also a one liner and not a bunch of setup code that you have to write every time.

Yes, sorry, I don't know what I was thinking!!...

2012-03-27T08:58:31.894+02:00

Yes, sorry, I don't know what I was thinking!!!!

Confusing greek letters? ;) It's called lambda...

2012-03-27T08:22:37.470+02:00

Confusing greek letters? ;) It's called lambda

Thanks SKamradt, That's the beauty of this me...

2012-03-26T20:24:05.712+02:00

Thanks SKamradt,

That's the beauty of this method, that you can use whichever suits you best.

You can use simple declaration like you suggested:

iQueryList := TQueryList<>.New(); or ever .Create();
and then operate with the variable:
list := iQueryList.List();

Or do it all together:
list := iQueryList.New.FillList().Where().OrderBy().List;

Hi Stefan, Thanks for your comment. Maybe you are...

2012-03-26T20:21:24.846+02:00

Hi Stefan,

Thanks for your comment. Maybe you are right and my examples try to illustrate too much but this was just an overview. Maybe those are not the best examples but at least those are a solution for an specific problem.
About the "Where" clause you are right, it is pointless, but I wanted to show that you can chain several "wheres" with different arguments and your final result would be affected as well.

Maybe it would have been clearer using a simple example like this:
for item in IqueryList.Where('Dublin').List do
WriteLn(item);

But then, you can ask, why instead of using a parameter "Dublin" we can write Delphi code to filter the query? That's the reason for the delegates. With this configuration the user can highly customize the query using "Delphi code" and the control of the query relies on it. That's the aim of LINQ. I'm not inventing anything new, I'm just trying to mimic what I learnt from LINQ and how they started using generics, delegates and extension methods in C#. Maybe I should post about it as at least to me it helped me a lot to understand the magic - because at the beginning everything was like magic, just writing something like:

var Customers =
from c in customers
where c.city = 'Dublin'
select c;

And then when I realised that internally it was using the same as I have described in this post, it helped me to deal with it without tears.

Jordi

Hi Jorge, Thanks for your comment. Nowadays I'...

2012-03-26T20:04:16.806+02:00

Hi Jorge,

Thanks for your comment. Nowadays I'm extremely busy but I always have time to publish interesting stuff. I have taken a look at your project and it looks really interesting. I would be more than happy to collaborate in your project! :).

Hi Jolyon, Thanks for your comment again, I reall...

2012-03-26T20:02:28.542+02:00

Hi Jolyon,

Thanks for your comment again, I really appreciate it. I totally agree with you as to why it would be hardly difficult to debug. My idea would be using this kind of concept in a Framework rather than in production code. At least using Delphi XE, it was quite easy to debug and go through all the delegates. Hopefully one day Embarcadero will apply alpha notation and then we will back on business.
This whole concept was after getting a deep understanding of LINQ and then I decided to go and try to mimic the behaviour using Delphi. Delphi is still way behind but using generics, delegates and chaining methods I was able to mimic the functionality.

Jordi

Thanks Darren, I also like this kind of declarati...

2012-03-26T19:45:23.179+02:00

Thanks Darren,

I also like this kind of declaration as it is fluent and more human readable. (Apart from using delegates which mess a lot with the code). Hopefully Embarcadero will implement Alpha notation in the future and we will be able to write things like:

for item in IqueryList.Where( s => s = 'Dublin')do
WriteLn(item);

Jordi

Just because it is fluent doesn't mean it HAS ...

2012-03-26T19:16:01.526+02:00

Just because it is fluent doesn't mean it HAS to be used that way. It is just as simple to write this as:

IqueryList := TQueryList;
IqueryList.New();
IqueryList.FillList(....