ALTERNATE_EDITOR causes emacsclient to run an alternate editor if the
emacs server is not ready. This can collide with intended
functionality in test-lib.sh.

If the ALTERNATE_EDITOR is set but empty, emacsclient runs emacs
daemon and tries to connect to it. When this happens the emacs run by
test-lib.sh fails to start the server and the subsequent attempts to
use the server fail because the daemon started by emacsclient does not
know about notmuch-test-progn. This leads to test suite failure due to
time out on any emacs test.
---
 test/test-lib.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/test-lib.sh b/test/test-lib.sh
index 126911f..270c718 100644
--- a/test/test-lib.sh
+++ b/test/test-lib.sh
@@ -82,6 +82,9 @@ unset CDPATH
 
 unset GREP_OPTIONS
 
+# For emacsclient
+unset ALTERNATE_EDITOR
+
 # Convenience
 #
 # A regexp to match 5 and 40 hexdigits
-- 
2.6.4

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