[tor-bugs] #15344 [Tor]: Integrate tests into automake test suite

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#15344: Integrate tests into automake test suite
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     Reporter:           |      Owner:  cypherpunks
  cypherpunks            |     Status:  needs_review
         Type:           |  Milestone:  Tor: 0.2.7.x-final
  enhancement            |    Version:  Tor: 0.2.7
     Priority:  trivial  |   Keywords:  testing, 027-triaged-1-in, SponsorS
    Component:  Tor      |  Parent ID:
   Resolution:           |
Actual Points:           |
       Points:  small    |
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Comment (by cypherpunks):

 A fixup patch did not apply cleanly so i created a separate branch (hence
 the new patches). I took this opportunity to rebase the patches on the
 current master (`0693955`) and clean them up (there were some
 unintentional file mode changes). The old patches `0001`, `0002` and
 `0003` are now deprecated, but patch `0004` can be reused as it only adds
 the changes file.

 The new approach for the zero lengths keys test is described in its commit
 message.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15344#comment:11>
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