Comments on: [Eclipse Tip] How to use Scrapbook pages in Eclipse? http://veerasundar.com/blog/2009/10/eclipse-tip-how-to-use-scrapbook-pages-in-eclipse/ Java, web and design Sun, 20 May 2012 11:47:45 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: IBBoard http://veerasundar.com/blog/2009/10/eclipse-tip-how-to-use-scrapbook-pages-in-eclipse/#comment-931 IBBoard Sat, 14 Nov 2009 04:03:48 +0000 http://veerasundar.com/blog/?p=807#comment-931 "When ever I code a complex logic in Java, I often wants to test a part of that complex code to check my logic correctness."<br>Isn't that what unit tests are for - testing your logic for correctness? Also, complex logic can often be broken down in to simpler logic, which would remove the problem in the first place :) “When ever I code a complex logic in Java, I often wants to test a part of that complex code to check my logic correctness.”
Isn't that what unit tests are for – testing your logic for correctness? Also, complex logic can often be broken down in to simpler logic, which would remove the problem in the first place :)

]]> By: IBBoard http://veerasundar.com/blog/2009/10/eclipse-tip-how-to-use-scrapbook-pages-in-eclipse/#comment-930 IBBoard Fri, 02 Oct 2009 18:18:06 +0000 http://veerasundar.com/blog/?p=807#comment-930 Yes and no on the "only testing a portion". It depends how you use unit tests - i.e. whether they're part of a decreed process that is added on afterwards, or part of a structured Test Driven Development (which I try to do but sometimes slip up with). Unit tests can still test little snippets of logic, since you should be breaking your code up in to small chunks. Also, if you use a unit test then it is recorded for future use as well, and any breaking changes you make to your logic will become obvious. 'Uncle' Bob Martin's "Clean Code" book[1] even has (IIRC) a section on explorative unit testing and how it can be useful. If you've not got a clue what your logic is and how it should work then unit tests can also be the building structure to create the logic. It's all well and good knowing that your logic does what you think it should, but is what you think it should do actually everything it needs to do ;) Without some comparison to known values then you can't know. [1] http://www.amazon.co.uk/gp/product/0132350882?ie=UTF8&tag=hiveworldterr-21&linkCode=as2&camp=1634&creative=19450&creativeASIN=0132350882 Yes and no on the “only testing a portion”. It depends how you use unit tests – i.e. whether they’re part of a decreed process that is added on afterwards, or part of a structured Test Driven Development (which I try to do but sometimes slip up with).

Unit tests can still test little snippets of logic, since you should be breaking your code up in to small chunks. Also, if you use a unit test then it is recorded for future use as well, and any breaking changes you make to your logic will become obvious. ‘Uncle’ Bob Martin’s “Clean Code” book[1] even has (IIRC) a section on explorative unit testing and how it can be useful.

If you’ve not got a clue what your logic is and how it should work then unit tests can also be the building structure to create the logic. It’s all well and good knowing that your logic does what you think it should, but is what you think it should do actually everything it needs to do ;) Without some comparison to known values then you can’t know.

[1] http://www.amazon.co.uk/gp/product/0132350882?ie=UTF8&tag=hiveworldterr-21&linkCode=as2&camp=1634&creative=19450&creativeASIN=0132350882

]]> By: Veera http://veerasundar.com/blog/2009/10/eclipse-tip-how-to-use-scrapbook-pages-in-eclipse/#comment-929 Veera Fri, 02 Oct 2009 06:20:06 +0000 http://veerasundar.com/blog/?p=807#comment-929 @ Steven Yes. Scrapbook page feature has been there in Eclipse for a long time. But relatively very few developers know about this handy stuff. @ Steven

Yes. Scrapbook page feature has been there in Eclipse for a long time. But relatively very few developers know about this handy stuff.

]]> By: steven http://veerasundar.com/blog/2009/10/eclipse-tip-how-to-use-scrapbook-pages-in-eclipse/#comment-928 steven Fri, 02 Oct 2009 05:12:04 +0000 http://veerasundar.com/blog/?p=807#comment-928 wow, handy stuff. apparently this has been around for a while wow, handy stuff. apparently this has been around for a while

]]> By: Veera http://veerasundar.com/blog/2009/10/eclipse-tip-how-to-use-scrapbook-pages-in-eclipse/#comment-927 Veera Thu, 01 Oct 2009 16:41:32 +0000 http://veerasundar.com/blog/?p=807#comment-927 @ppow Agree on that. Scrapbook pages are good for evaluating a piece of code. @ppow

Agree on that. Scrapbook pages are good for evaluating a piece of code.

]]> By: ppow http://veerasundar.com/blog/2009/10/eclipse-tip-how-to-use-scrapbook-pages-in-eclipse/#comment-926 ppow Thu, 01 Oct 2009 15:58:21 +0000 http://veerasundar.com/blog/?p=807#comment-926 I agree with IBBoard: whenever you have a non-trivial part of code that you might want to check for correctness you should encapsulate it and create an unit test for it. Having said that I see the usefulness of scrapbook: its a great place for experimenting and checking/evaluating the possible solutions I agree with IBBoard: whenever you have a non-trivial part of code that you might want to check for correctness you should encapsulate it and create an unit test for it.

Having said that I see the usefulness of scrapbook: its a great place for experimenting and checking/evaluating the possible solutions

]]> By: Veera http://veerasundar.com/blog/2009/10/eclipse-tip-how-to-use-scrapbook-pages-in-eclipse/#comment-925 Veera Thu, 01 Oct 2009 13:32:35 +0000 http://veerasundar.com/blog/?p=807#comment-925 @IBBoard Unit test are entirely different from this Scrapbook pages. When you want to test the complete class for the functionality, Unit tests are helpful. But what I wanted to say is when only the portion of the code that needs to be evaluated, Scrapbook pages are handy. :) @IBBoard

Unit test are entirely different from this Scrapbook pages. When you want to test the complete class for the functionality, Unit tests are helpful.

But what I wanted to say is when only the portion of the code that needs to be evaluated, Scrapbook pages are handy. :)

]]> By: IBBoard http://veerasundar.com/blog/2009/10/eclipse-tip-how-to-use-scrapbook-pages-in-eclipse/#comment-924 IBBoard Thu, 01 Oct 2009 13:05:28 +0000 http://veerasundar.com/blog/?p=807#comment-924 "When ever I code a complex logic in Java, I often wants to test a part of that complex code to check my logic correctness." Isn't that what unit tests are for - testing your logic for correctness? Also, complex logic can often be broken down in to simpler logic, which would remove the problem in the first place :) “When ever I code a complex logic in Java, I often wants to test a part of that complex code to check my logic correctness.”
Isn’t that what unit tests are for – testing your logic for correctness? Also, complex logic can often be broken down in to simpler logic, which would remove the problem in the first place :)

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