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Merge branch 'jk/sanity' into maint

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The description for SANITY prerequisite the test suite uses has
been clarified both in the comment and in the implementation.

* jk/sanity:
  test-lib: clarify and tighten SANITY
This commit is contained in:
Junio C Hamano 2016-02-05 14:54:14 -08:00
commit 913c2c7c7b
1 changed files with 13 additions and 5 deletions
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18
t/test-lib.sh
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@ -1054,20 +1054,28 @@ test_lazy_prereq NOT_ROOT '
test "$uid" != 0
'
# On a filesystem that lacks SANITY, a file can be deleted even if
# the containing directory doesn't have write permissions, or a file
# can be accessed even if the containing directory doesn't have read
# or execute permissions, causing our tests that validate that Git
# works sensibly in such situations.
# SANITY is about "can you correctly predict what the filesystem would
# do by only looking at the permission bits of the files and
# directories?" A typical example of !SANITY is running the test
# suite as root, where a test may expect "chmod -r file && cat file"
# to fail because file is supposed to be unreadable after a successful
# chmod. In an environment (i.e. combination of what filesystem is
# being used and who is running the tests) that lacks SANITY, you may
# be able to delete or create a file when the containing directory
# doesn't have write permissions, or access a file even if the
# containing directory doesn't have read or execute permissions.
test_lazy_prereq SANITY '
mkdir SANETESTD.1 SANETESTD.2 &&
chmod +w SANETESTD.1 SANETESTD.2 &&
>SANETESTD.1/x 2>SANETESTD.2/x &&
chmod -w SANETESTD.1 &&
chmod -r SANETESTD.1/x &&
chmod -rx SANETESTD.2 ||
error "bug in test sript: cannot prepare SANETESTD"
! test -r SANETESTD.1/x &&
! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
status=$?