diff --git a/test/test_persistence.py b/test/test_persistence.py
index f199bf2..015f1fc 100644
--- a/test/test_persistence.py
+++ b/test/test_persistence.py
@@ -39,7 +39,7 @@ class DatabaseTestCase(unittest.TestCase):
 
     def test_create_table_custom_id1(self):
         pid = "string_id"
-        table = self.db.create_table("foo2", pid, 'Text')
+        table = self.db.create_table("foo2", pid, 'String')
         assert table.table.exists()
         assert len(table.table.columns) == 1, table.table.columns
         assert pid in table.table.c, table.table.c
@@ -49,8 +49,19 @@ class DatabaseTestCase(unittest.TestCase):
         assert table.find_one(string_id = 'foobar')['string_id'] == 'foobar'
 
     def test_create_table_custom_id2(self):
+        pid = "string_id"
+        table = self.db.create_table("foo3", pid, 'String(50)')
+        assert table.table.exists()
+        assert len(table.table.columns) == 1, table.table.columns
+        assert pid in table.table.c, table.table.c
+
+        table.insert({
+            'string_id': 'foobar'})
+        assert table.find_one(string_id = 'foobar')['string_id'] == 'foobar'
+
+    def test_create_table_custom_id3(self):
         pid = "int_id"
-        table = self.db.create_table("foo3", primary_id = pid)
+        table = self.db.create_table("foo4", primary_id = pid)
         assert table.table.exists()
         assert len(table.table.columns) == 1, table.table.columns
         assert pid in table.table.c, table.table.c
@@ -64,7 +75,7 @@ class DatabaseTestCase(unittest.TestCase):
 
     def test_create_table_shorthand1(self):
         pid = "int_id"
-        table = self.db['foo4', pid]
+        table = self.db['foo5', pid]
         assert table.table.exists
         assert len(table.table.columns) == 1, table.table.columns
         assert pid in table.table.c, table.table.c
@@ -78,7 +89,18 @@ class DatabaseTestCase(unittest.TestCase):
 
     def test_create_table_shorthand2(self):
         pid = "string_id"
-        table = self.db['foo5', pid, 'Text']
+        table = self.db['foo6', pid, 'String']
+        assert table.table.exists
+        assert len(table.table.columns) == 1, table.table.columns
+        assert pid in table.table.c, table.table.c
+
+        table.insert({
+            'string_id': 'foobar'})
+        assert table.find_one(string_id = 'foobar')['string_id'] == 'foobar'
+
+    def test_create_table_shorthand3(self):
+        pid = "string_id"
+        table = self.db['foo7', pid, 'String(20)']
         assert table.table.exists
         assert len(table.table.columns) == 1, table.table.columns
         assert pid in table.table.c, table.table.c