lib: handle empty string in regexp field processors

[notmuch] / test / T650-regexp-query.sh

diff --git a/test/T650-regexp-query.sh b/test/T650-regexp-query.sh
index 1db6a76b98a8dd03b4c118b3b05e84834d5e1089..9599c104d452f9d8b0f331017b500751e808138f 100755 (executable)
--- a/test/T650-regexp-query.sh
+++ b/test/T650-regexp-query.sh
@@ -11,13 +11,29 @@ fi
 
 notmuch search --output=messages from:cworth > cworth.msg-ids
 
+# these headers will generate no document terms
+add_message '[from]="-" [subject]="empty from"'
+add_message '[subject]="-"'
+
+test_begin_subtest "null from: search"
+notmuch search 'from:""' | notmuch_search_sanitize > OUTPUT
+cat <<EOF > EXPECTED
+thread:XXX   2001-01-05 [1/1] -; empty from (inbox unread)
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "null subject: search"
+notmuch search 'subject:""' | notmuch_search_sanitize > OUTPUT
+cat <<EOF > EXPECTED
+thread:XXX   2001-01-05 [1/1] Notmuch Test Suite; - (inbox unread)
+EOF
+test_expect_equal_file EXPECTED OUTPUT
+
 test_begin_subtest "xapian wildcard search for from:"
-test_subtest_known_broken
 notmuch search --output=messages 'from:cwo*' > OUTPUT
 test_expect_equal_file cworth.msg-ids OUTPUT
 
 test_begin_subtest "xapian wildcard search for subject:"
-test_subtest_known_broken
 test_expect_equal $(notmuch count 'subject:count*') 1
 
 test_begin_subtest "regexp from search, case sensitive"