D::C is cool. I also agree xdg's observations. It can definitely seduce one into obsessing over achieving 100% coverage on all fronts, which, given the current limitations of D::C, is not always reasonable.

In addition to the ones already mentioned, one (admittedly pretty darn obscure) situation I haven't figured out how to cover is code like this: 

$SIG{ __DIE__ } = sub {
  if ( $^S ) {
    # exceptions being caught
  }
  else {
    # uncoverable?
    die;
  }
}

[download]
In tests, the __DIE__ handler would always run within the dynamic scope of an eval, for obvious reasons, so $^S (aka, $EXCEPTIONS_BEING_CAUGHT) will always be true.

Update: I added a die statement to the second branch of the conditional. Thanks to davidrw, whose reply alerted me to the omission.

the lowliest monk

In reply to Re: TDD with Coverage Analysis. Wow. by tlm
in thread TDD with Coverage Analysis. Wow. by dws

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