From a68d89a4f351f8df2bfceeac77540b23e29827be Mon Sep 17 00:00:00 2001
From: Matthew Honnibal <honnibal+gh@gmail.com>
Date: Tue, 24 Oct 2017 12:05:25 +0200
Subject: [PATCH] Add failing test for bug #1375 -- no out-of-bounds error for
 token.nbor()

---
 spacy/tests/regression/test_issue1375.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 spacy/tests/regression/test_issue1375.py

diff --git a/spacy/tests/regression/test_issue1375.py b/spacy/tests/regression/test_issue1375.py
new file mode 100644
index 000000000..72070758d
--- /dev/null
+++ b/spacy/tests/regression/test_issue1375.py
@@ -0,0 +1,16 @@
+from __future__ import unicode_literals
+import pytest
+from ...vocab import Vocab
+from ...tokens.doc import Doc
+
+@pytest.mark.xfail
+def test_issue1375():
+    '''Test that token.nbor() raises IndexError for out-of-bounds access.'''
+    doc = Doc(Vocab(), words=['0', '1', '2'])
+    with pytest.raises(IndexError):
+        assert doc[0].nbor(-1)
+    assert doc[1].nbor(-1).text == '0'
+    with pytest.raises(IndexError):
+        assert doc[2].nbor(1)
+    assert doc[1].nbor(1).text == '2'
+