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Sounsd like you didn't read all of the TDD / XP documentation. Whenever two pieces of code disagree, verify that the simpler one is correct (cause it's simpler to verify), then check the more complex one. This is kinda like checking to make sure the computer is still plugged in when the monitor mysteriously goes blank.

I'm also not sure you were truly doing TDD when you have code you changed to pass the tests. You shouldn't have to change code to pass tests - the code should be written literally line by line to pass tests you wrote 5 minutes earlier. I literally write can_ok( $CLASS, 'foo' );, watch that fail, then write sub foo {}, watch it pass, then write the first test for foo().

It sounds like you wrote too much untested code at once.


My criteria for good software:
  1. Does it work?
  2. Can someone else come in, make a change, and be reasonably certain no bugs were introduced?

In reply to Re: A danger of test driven development. by dragonchild
in thread A danger of test driven development. by Perl Mouse

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