diff --git a/tests/parser/test_base_nps.py b/tests/parser/test_base_nps.py
new file mode 100644
index 000000000..f37c80f07
--- /dev/null
+++ b/tests/parser/test_base_nps.py
@@ -0,0 +1,40 @@
+import pytest
+
+
+@pytest.mark.models
+def test_nsubj(EN):
+    sent = EN(u'A base phrase should be recognized.')
+    base_nps = list(sent.noun_chunks)
+    assert len(base_nps) == 1
+    assert base_nps[0].string == 'A base phrase '
+
+
+@pytest.mark.models
+def test_coord(EN):
+    sent = EN(u'A base phrase and a good phrase are often the same.')
+    base_nps = list(sent.noun_chunks)
+    assert len(base_nps) == 2
+    assert base_nps[0].string == 'A base phrase '
+    assert base_nps[1].string == 'a good phrase '
+
+
+@pytest.mark.models
+def test_pp(EN):
+    sent = EN(u'A phrase with another phrase occurs')
+    base_nps = list(sent.noun_chunks)
+    assert len(base_nps) == 2
+    assert base_nps[0].string == 'A phrase '
+    assert base_nps[1].string == 'another phrase ' 
+
+
+@pytest.mark.models
+def test_merge_pp(EN):
+    sent = EN(u'A phrase with another phrase occurs')
+    nps = [(np[0].idx, np[-1].idx + len(np[-1]), np[0].ent_type_) for np in sent.noun_chunks]
+
+    for start, end, ent_type in nps:
+        sent.merge(start, end, u'NP', np.lemma_, ent_type)
+    assert sent[0].string == 'A phrase '
+    assert sent[1].string == 'with '
+    assert sent[2].string == 'another phrase '
+    assert sent[3].string == 'occurs'