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[Jonathan Lange <jml@xxxxxxxxx>]

** Branch linked: lp:~jml/testtools/all-match-615108

** Changed in: testtools
       Status: Triaged => In Progress

** Changed in: testtools
     Assignee: (unassigned) => Jonathan Lange (jml)

** Changed in: testtools
    Milestone: None => next

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https://bugs.launchpad.net/bugs/615108

Title:
  Please provide a way to match an iterable of matchees

Status in testtools:
  In Progress

Bug description:
  Hi,

  I frequently want something similar to MatchesAll, but where it applies one
  Matcher to an iterable of matchees, collecting all the mismatches (or perhaps
  with an option to just return the first as it is hit.)

  Shortly after writing a Matcher I will find that I want to test a list of things to
  check that they all match, so having a generalised way of doing that would
  be great.

  results = [x for x in map(matcher.match, matchees) if x is not None]
  if results:
      return MismatchesAll(results)

  Thanks,

  James

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