* Add a test for Issue #118: Matcher behaves unpredictably with overlapping entities

tests/matcher/test_matcher_bugfixes.py

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+import pytest
+
+
+from spacy.matcher import Matcher
+
+def test_overlap_issue118(EN):
+    '''Test a bug that arose from having overlapping matches'''
+    doc = EN.tokenizer(u'how many points did lebron james score against the boston celtics last night')
+    ORG = doc.vocab.strings['ORG']
+    matcher = Matcher(EN.vocab, {'BostonCeltics': ('ORG', {}, [[{'lower': 'boston'}, {'lower': 'celtics'}], [{'lower': 'celtics'}]])})
+    
+    matches = matcher(doc)
+    assert matches == [(ORG, 9, 11)]
+    ents = list(doc.ents)
+    assert len(ents) == 1
+    assert ents[0].label == ORG
+    assert ents[0].start == 9
+    assert ents[0].end == 11
+