From 02d9378d8cc206851dfcc3ea2189fb7961ee85ef Mon Sep 17 00:00:00 2001
From: Ines Montani <ines@ines.io>
Date: Sat, 23 Mar 2019 11:19:11 +0100
Subject: [PATCH] Add xfailing test for #3468

---
 spacy/tests/regression/test_issue3468.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 spacy/tests/regression/test_issue3468.py

diff --git a/spacy/tests/regression/test_issue3468.py b/spacy/tests/regression/test_issue3468.py
new file mode 100644
index 000000000..77147c9aa
--- /dev/null
+++ b/spacy/tests/regression/test_issue3468.py
@@ -0,0 +1,23 @@
+# coding: utf8
+from __future__ import unicode_literals
+
+import pytest
+from spacy.lang.en import English
+from spacy.tokens import Doc
+
+
+@pytest.mark.xfail
+def test_issue3468():
+    """Test that sentence boundaries are serialized if they're not set by the
+    dependency parser."""
+    nlp = English()
+    nlp.add_pipe(nlp.create_pipe("sentencizer"))
+    doc = nlp("Hello world")
+    assert doc.is_sentenced
+    assert doc[0].is_sent_start
+    assert len(list(doc.sents)) == 1
+    doc_bytes = doc.to_bytes()
+    new_doc = Doc(nlp.vocab).from_bytes(doc_bytes)
+    assert new_doc.is_sentenced
+    assert doc[0].is_sent_start
+    assert len(list(new_doc.sents)) == 1