Add xfailing test for #3331

spacy/tests/regression/test_issue3331.py

@@ -0,0 +1,21 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import pytest
+from spacy.matcher import PhraseMatcher
+from spacy.tokens import Doc
+
+
+@pytest.mark.xfail
+def test_issue3331(en_vocab):
+    """Test that duplicate patterns for different rules result in multiple
+    matches, one per rule.
+    """
+    matcher = PhraseMatcher(en_vocab)
+    matcher.add("A", None, Doc(en_vocab, words=["Barack", "Obama"]))
+    matcher.add("B", None, Doc(en_vocab, words=["Barack", "Obama"]))
+    doc = Doc(en_vocab, words=["Barack", "Obama", "lifts", "America"])
+    matches = matcher(doc)
+    assert len(matches) == 2
+    match_ids = [en_vocab.strings[matches[0][0]], en_vocab.strings[matches[1][0]]]
+    assert sorted(match_ids) == ["A", "B"]