[PATCH] test: Fix transient error in 'new' test

[Austin Clements]

This fixes a non-deterministic failure in "Ignore files and
directories specified in new.ignore (multiple occurrences)".  The test
assumed that all directories would be scanned, even though nothing
updated the mtime of ${MAIL_DIR}.  It *usually* worked nevertheless
because the tests run quickly enough that the directory mtime is
usually the same as the current time, so notmuch new does not update
the mtime in the database (because more changes could occur in the
same second).  However, when it occasionally did update the mtime in
the database, the notmuch new call in this test would (correctly) skip
"pass 2" of scanning ${MAIL_DIR}, causing it to skip the following
expected lines:

  (D) add_files_recursive, pass 2: explicitly ignoring ${MAIL_DIR}/.git
  (D) add_files_recursive, pass 2: explicitly ignoring ${MAIL_DIR}/.ignored_hidden_file
  (D) add_files_recursive, pass 2: explicitly ignoring ${MAIL_DIR}/ignored_file

This patch fixes this problem by touching ${MAIL_DIR} to ensure it
gets scanned and by rearranging the test to ensure the directories are
touched immediately before the main notmuch new call in the test.
---
 test/new | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/new b/test/new
index 3eff2fe..f27423d 100755
--- a/test/new
+++ b/test/new
@@ -218,9 +218,10 @@ test_expect_equal "$output" "Added 1 new message to the database."
 
 test_begin_subtest "Ignore files and directories specified in new.ignore (multiple occurrences)"
 notmuch config set new.ignore .git ignored_file .ignored_hidden_file
+notmuch new > /dev/null # ensure that files/folders will be printed in ASCII order.
 touch "${MAIL_DIR}"/.git # change .git's mtime for notmuch new to rescan.
+touch "${MAIL_DIR}"      # likewise for MAIL_DIR
 mkdir -p "${MAIL_DIR}"/one/two/three/.git
-notmuch new > /dev/null # ensure that files/folders will be printed in ASCII order.
 touch "${MAIL_DIR}"/{one,one/two,one/two/three}/ignored_file
 output=$(NOTMUCH_NEW --debug 2>&1 | sort)
 test_expect_equal "$output" \
-- 
1.8.4.rc3