test: add known broken test for good In-Reply-To / bad References

The current scheme of choosing the replyto (i.e. the default parent
for threading purposes) does not work well for mailers that put
the oldest Reference last.

3 files changed, 28 insertions, 0 deletions

diff --git a/test/corpora/threading/parent-priority/cur/child b/test/corpora/threading/parent-priority/cur/child
new file mode 100644
index 00000000..23ee6495
--- /dev/null
+++ b/test/corpora/threading/parent-priority/cur/child
@@ -0,0 +1,11 @@
+From: Alice <alice@example.org>
+To: Daniel <daniel@example.org>
+Subject: child message
+Message-ID: <B01-child@example.org>
+In-Reply-To: <B00-root@example.org>
+References:  <B00--root@example.org>
+Date: Fri, 17 Jun 2016 22:14:41 -0400
+
+This is a normal-ish reply, and has both a references header and an
+in-reply-to header.
+
diff --git a/test/corpora/threading/parent-priority/cur/grand-child b/test/corpora/threading/parent-priority/cur/grand-child
new file mode 100644
index 00000000..028371d4
--- /dev/null
+++ b/test/corpora/threading/parent-priority/cur/grand-child
@@ -0,0 +1,10 @@
+From: Alice <alice@example.org>
+To: Daniel <daniel@example.org>
+Subject: grand-child message
+Message-ID: <B01-grand-child@example.org>
+In-Reply-To: <B01-child@example.org>
+References:  <B01-child@example.org> <B00-root@example.org>
+Date: Fri, 17 Jun 2016 22:24:41 -0400
+
+This has the references headers in the wrong order, with oldest first.
+Debbugs does this.
diff --git a/test/corpora/threading/parent-priority/cur/root b/test/corpora/threading/parent-priority/cur/root
new file mode 100644
index 00000000..3990843d
--- /dev/null
+++ b/test/corpora/threading/parent-priority/cur/root
@@ -0,0 +1,7 @@
+From: Alice <alice@example.org>
+To: Daniel <daniel@example.org>
+Subject: root message
+Message-ID: <B00-root@example.org>
+Date: Thu, 16 Jun 2016 22:14:41 -0400
+
+This message has no reply-to