Add stub of tests for spancat

spacy/tests/pipeline/test_spancat.py

@@ -0,0 +1,25 @@
+# coding: utf8
+from __future__ import unicode_literals
+
+import pytest
+from spacy.tokens import Span
+from spacy.language import Language
+from spacy.pipeline.spancat import SpanCategorizer
+
+
+def test_init_spancat(en_vocab):
+    model = SpanCategorizer(en_vocab)
+
+
+@pytest.fixture
+def spancat(en_vocab):
+    return SpanCategorizer(en_vocab)
+
+
+def test_spancat_add_label(spancat):
+    assert "NP" not in spancat.labels
+    spancat.add_label("NP")
+    assert "NP" in spancat.labels
+
+def test_spancat_init_model(spancat):
+    model = spancat.Model(10, width=10, embed_size=10)