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JUnit testing  RSS feed

 
Greenhorn
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Can someone help me with JUnit test, I've read the documentation about it but still don't get  how to test it? Thank you.
 
Marshal
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Before you test that code, stop using Calendar or the buillt‑in Date class. Use the newer classes as described in the Java™ Tutorials.
 
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Campbell Ritchie wrote:Before you test that code, stop using Calendar or the buillt‑in Date class. Use the newer classes as described in the Java™ Tutorials.



It looks like the whole point of the code is to write a class which represents time-stamps. Yes, I know that's a WTF and it's the exact opposite of best practice. But apparently there are still some teachers who think it's a good way to practice coding.
 
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Asking how to do JUnit testing is a little like asking how to program: it's a complex issue.  Can you give us some more context?  Have you been told to "add testing" to your program by a teacher or employer?  Is this for your own research?  Are you using an IDE?  Which one?  Are you using Maven?  Gradle?  Is this for a company that runs CI (continuous integration)?  In other words, is this part of a larger software development system or just for you?

After we determine your development environment, you would start writing unit tests.  This is a new program that will run your tests for the original program.  (You actually test methods).  I would start with very simple tests and build from there.

A JUnit tutorial would be a good place to start.  I would start by googling junit 5 tutorial for beginners.  Sorry, I can't recommend any specific one; I'm not familiar with them.  
 
Campbell Ritchie
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I resisted the temptation to say that writing your own date/time classes is a waste of time, but at least it would have ben easier with a well‑designed class underlying that.

Of course, you should be able to extract the information without using an intermediate class at all, so I tried something on JShell:
 
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