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+From: David Bremner <david@tethera.net>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH] test: add sanity tests for threading\r
+Date: Sat, 19 Sep 2015 12:45:42 -0300\r
+Message-Id: <1442677542-25879-1-git-send-email-david@tethera.net>\r
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+In-Reply-To:\r
+ <CAJhTkNh7_hXDLsAGyD7nwkXV4ca6ymkLtFG945USvfqK4ZJEdQ@mail.gmail.com>\r
+References:\r
+ <CAJhTkNh7_hXDLsAGyD7nwkXV4ca6ymkLtFG945USvfqK4ZJEdQ@mail.gmail.com>\r
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+\r
+These tests are inspired by a problem report\r
+\r
+ id:CAJhTkNh7_hXDLsAGyD7nwkXV4ca6ymkLtFG945USvfqK4ZJEdQ@mail.gmail.com\r
+\r
+Of course I can't duplicate the mentioned problem, it probably depends\r
+on specific message data.\r
+---\r
+ test/T580-thread-search.sh | 42 ++++++++++++++++++++++++++++++++++++++++++\r
+ 1 file changed, 42 insertions(+)\r
+ create mode 100755 test/T580-thread-search.sh\r
+\r
+diff --git a/test/T580-thread-search.sh b/test/T580-thread-search.sh\r
+new file mode 100755\r
+index 0000000..6f7106d\r
+--- /dev/null\r
++++ b/test/T580-thread-search.sh\r
+@@ -0,0 +1,42 @@\r
++#!/usr/bin/env bash\r
++#\r
++# Copyright (c) 2015 David Bremner\r
++#\r
++\r
++test_description='test of searching by thread-id'\r
++\r
++. ./test-lib.sh || exit 1\r
++\r
++add_email_corpus\r
++\r
++test_begin_subtest "Every message is found in exactly one thread"\r
++\r
++count=0\r
++success=0\r
++for id in $(notmuch search --output=messages '*'); do\r
++ count=$((count +1))\r
++ matches=$(notmuch search --output=threads "$id" | wc -l)\r
++ if [ "$matches" = 1 ]; then\r
++ success=$((success + 1))\r
++ fi\r
++done\r
++\r
++test_expect_equal "$count" "$success"\r
++\r
++test_begin_subtest "roundtripping message-ids via thread-ids"\r
++\r
++count=0\r
++success=0\r
++for id in $(notmuch search --output=messages '*'); do\r
++ count=$((count +1))\r
++ thread=$(notmuch search --output=threads "$id")\r
++ matched=$(notmuch search --output=messages "$thread" | grep "$id")\r
++ if [ "$matched" = "$id" ]; then\r
++ success=$((success + 1))\r
++ fi\r
++done\r
++\r
++test_expect_equal "$count" "$success"\r
++\r
++\r
++test_done\r
+-- \r
+2.5.1\r
+\r