Add test for morph analysis

spacy/tests/doc/test_morphanalysis.py

@@ -0,0 +1,30 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import pytest
+import numpy
+from spacy.attrs import IS_ALPHA, IS_DIGIT, IS_LOWER, IS_PUNCT, IS_TITLE, IS_STOP
+from spacy.symbols import VERB
+from spacy.vocab import Vocab
+from spacy.tokens import Doc
+
+@pytest.fixture
+def i_has(en_tokenizer):
+    doc = en_tokenizer("I has")
+    doc[0].tag_ = "PRP"
+    doc[1].tag_ = "VBZ"
+    return doc
+
+def test_token_morph_id(i_has):
+    assert i_has[0].morph.id
+    assert i_has[1].morph.id != 0
+    assert i_has[0].morph.id != i_has[1].morph.id
+
+def test_morph_props(i_has):
+    assert i_has[0].morph.pron_type == i_has.vocab.strings["PronType_prs"]
+    assert i_has[1].morph.pron_type == 0
+
+
+def test_morph_iter(i_has):
+    assert list(i_has[0].morph) == ["PronType_prs"]
+    assert list(i_has[1].morph) == ["Number_sing", "Person_three", "VerbForm_fin"]