[PATCH] D25869: [Driver] Add unit tests for DetectDistro()

[Michał Górny via cfe-commits]

mgorny created this revision.
mgorny added reviewers: bruno, bkramer, rafael.
mgorny added a subscriber: cfe-commits.
Herald added a subscriber: beanz.

Add a set of unit tests for the DetectDistro() function in Driver. Make
the function itself (and the enum) visible in the library for the tests.

The tests use an in-memory virtual filesystems resembling release files
for various distributions supported. All release files are provided (not
only the ones directly used) in order to guarantee that one of the rules
will not mistakenly recognize the distribution incorrectly due to
the additional files (e.g. Ubuntu as Debian).


https://reviews.llvm.org/D25869

Files:
  lib/Driver/ToolChains.cpp
  lib/Driver/ToolChains.h
  unittests/Driver/CMakeLists.txt
  unittests/Driver/ToolChainsTest.cpp

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