[PATCH] test: use test_expect_equal for PATH test, update message

[David Bremner]

- The old test was quite impossible to debug; the new one shows the difference
  between the two directories, if any.

- "repository" doesn't make sense for out of tree builds. Or tarball
  builds, for that matter.
---

I was tracking down a weird issue with out of tree builds. I didn't
find the issue (it may have just been cruft from a previously broken
build). In any case, I think the patch is a small improvement.

 test/T000-basic.sh | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/test/T000-basic.sh b/test/T000-basic.sh
index 9c94b62..ebbb6d2 100755
--- a/test/T000-basic.sh
+++ b/test/T000-basic.sh
@@ -86,8 +86,9 @@ test_expect_success \
     'NOTMUCH_CONFIG is set and points to an existing file' \
     'test -f "${NOTMUCH_CONFIG}"'
 
-test_expect_success \
-    'PATH is set to this repository' \
-    'test "`echo $PATH|cut -f1 -d: | sed -e 's,/test/valgrind/bin$,,'`" = "`dirname ${TEST_DIRECTORY}`"'
+test_begin_subtest 'PATH is set to build directory'
+test_expect_equal \
+    "$(dirname ${TEST_DIRECTORY})" \
+    "$(echo $PATH|cut -f1 -d: | sed -e 's,/test/valgrind/bin$,,')"
 
 test_done
-- 
1.9.1