diff --git a/tests/test_lexeme_flags.py b/tests/test_lexeme_flags.py
new file mode 100644
index 000000000..4818c33b1
--- /dev/null
+++ b/tests/test_lexeme_flags.py
@@ -0,0 +1,25 @@
+from __future__ import unicode_literals
+
+import pytest
+
+from spacy.en import *
+
+
+def test_is_alpha():
+    the = EN.lookup('the')
+    assert the.check_flag(EN.fl_is_alpha)
+    year = EN.lookup('1999')
+    assert not year.check_flag(EN.fl_is_alpha)
+    mixed = EN.lookup('hello1')
+    assert not mixed.check_flag(EN.fl_is_alpha)
+
+
+def test_is_digit():
+    the = EN.lookup('the')
+    assert not the.check_flag(EN.fl_is_digit)
+    year = EN.lookup('1999')
+    assert year.check_flag(EN.fl_is_digit)
+    mixed = EN.lookup('hello1')
+    assert not mixed.check_flag(EN.fl_is_digit)
+
+
diff --git a/tests/test_string_loading.py b/tests/test_string_loading.py
new file mode 100644
index 000000000..5efcf7f9b
--- /dev/null
+++ b/tests/test_string_loading.py
@@ -0,0 +1,16 @@
+"""Test suspected freeing of strings"""
+from __future__ import unicode_literals
+
+import pytest
+
+from spacy.en import EN
+
+
+def test_one():
+    tokens = EN.tokenize('Betty Botter bought a pound of butter.')
+    assert tokens.string(0) == 'Betty'
+    tokens2 = EN.tokenize('Betty also bought a pound of butter.')
+    assert tokens2.string(0) == 'Betty'
+
+
+