* Add tests for Issue #361: Lexeme rich comparison

spacy/tests/vocab/test_lexeme.py

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+from __future__ import unicode_literals
+
+import pytest
+
+from spacy.attrs import *
+
+
+def test_lexeme_eq(en_vocab):
+    '''Test Issue #361: Equality of lexemes'''
+    cat1 = en_vocab['cat']
+
+    cat2 = en_vocab['cat']
+
+    assert cat1 == cat2
+
+def test_lexeme_neq(en_vocab):
+    '''Inequality of lexemes'''
+    cat = en_vocab['cat']
+
+    dog = en_vocab['dog']
+
+    assert cat != dog
+
+def test_lexeme_lt(en_vocab):
+    '''More frequent is l.t. less frequent'''
+    noun = en_vocab['NOUN']
+
+    opera = en_vocab['opera']
+
+    print(noun.orth, opera.orth)
+    assert noun < opera
+    assert opera > noun
+