test: add regression test for n_t_get_messages

This is similar to the case of toplevel messages. Currently everything
is cached, so no database access is necessary. This might change in
the future, but it should not crash in either case.

diff --git a/test/T568-lib-thread.sh b/test/T568-lib-thread.sh
index 4703950bc515a9a8d767cb4ce6db2fa35a8085d9..c7d4f26bb84f705d8829b59f8c3906131fe9d530 100755 (executable)
--- a/test/T568-lib-thread.sh
+++ b/test/T568-lib-thread.sh
@@ -172,4 +172,30 @@ cat <<EOF > EXPECTED
 EOF
 test_expect_equal_file EXPECTED OUTPUT
 
+test_begin_subtest "iterate over all messages with closed database"
+cat c_head - c_tail <<'EOF' | test_C ${MAIL_DIR}
+    {
+      notmuch_messages_t *messages;
+      for (messages = notmuch_thread_get_messages (thread);
+           notmuch_messages_valid (messages);
+           notmuch_messages_move_to_next (messages)) {
+        notmuch_message_t *message = notmuch_messages_get (messages);
+        const char *mid = notmuch_message_get_message_id (message);
+        printf("%s\n", mid);
+      }
+    }
+EOF
+cat <<EOF > EXPECTED
+== stdout ==
+20091117190054.GU3165@dottiness.seas.harvard.edu
+87iqd9rn3l.fsf@vertex.dottedmag
+20091117203301.GV3165@dottiness.seas.harvard.edu
+87fx8can9z.fsf@vertex.dottedmag
+yunaayketfm.fsf@aiko.keithp.com
+20091118005040.GA25380@dottiness.seas.harvard.edu
+87ocn0qh6d.fsf@yoom.home.cworth.org
+== stderr ==
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
 test_done