Re-factor db sqlalchemy tests

Heat repository already contains sub-directory tests/db/. In this patch
we move all related with db sqlalchemy tests to mentioned sub-directory.
Also was removed redundant copy of file
heat/tests/test_sqlalchemy_types.py. Code from this file was migrated to
heat/tests/db/test_sqlalchemy_types.py file.

Change-Id: I337eeedc079e1146958ec3b4b1956d76ce7fc352

heat/tests/db/test_sqlalchemy_types.py

@@ -19,6 +19,52 @@ from heat.db.sqlalchemy import types as db_types
 from heat.tests import common
 
 
+class LongTextTest(common.HeatTestCase):
+
+    def setUp(self):
+        super(LongTextTest, self).setUp()
+        self.sqltype = db_types.LongText()
+
+    def test_load_dialect_impl(self):
+        dialect = mysql_base.MySQLDialect()
+        impl = self.sqltype.load_dialect_impl(dialect)
+        self.assertNotEqual(types.Text, type(impl))
+        dialect = sqlite_base.SQLiteDialect()
+        impl = self.sqltype.load_dialect_impl(dialect)
+        self.assertEqual(types.Text, type(impl))
+
+
+class JsonTest(common.HeatTestCase):
+
+    def setUp(self):
+        super(JsonTest, self).setUp()
+        self.sqltype = db_types.Json()
+
+    def test_process_bind_param(self):
+        dialect = None
+        value = {'foo': 'bar'}
+        result = self.sqltype.process_bind_param(value, dialect)
+        self.assertEqual('{"foo": "bar"}', result)
+
+    def test_process_bind_param_null(self):
+        dialect = None
+        value = None
+        result = self.sqltype.process_bind_param(value, dialect)
+        self.assertEqual('null', result)
+
+    def test_process_result_value(self):
+        dialect = None
+        value = '{"foo": "bar"}'
+        result = self.sqltype.process_result_value(value, dialect)
+        self.assertEqual({'foo': 'bar'}, result)
+
+    def test_process_result_value_null(self):
+        dialect = None
+        value = None
+        result = self.sqltype.process_result_value(value, dialect)
+        self.assertIsNone(result)
+
+
 class ListTest(common.HeatTestCase):
 
     def setUp(self):

heat/tests/test_sqlalchemy_types.py

@@ -1,65 +0,0 @@
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-from sqlalchemy.dialects.mysql import base as mysql_base
-from sqlalchemy.dialects.sqlite import base as sqlite_base
-from sqlalchemy import types
-
-from heat.db.sqlalchemy import types as db_types
-from heat.tests import common
-
-
-class LongTextTest(common.HeatTestCase):
-
-    def setUp(self):
-        super(LongTextTest, self).setUp()
-        self.sqltype = db_types.LongText()
-
-    def test_load_dialect_impl(self):
-        dialect = mysql_base.MySQLDialect()
-        impl = self.sqltype.load_dialect_impl(dialect)
-        self.assertNotEqual(types.Text, type(impl))
-        dialect = sqlite_base.SQLiteDialect()
-        impl = self.sqltype.load_dialect_impl(dialect)
-        self.assertEqual(types.Text, type(impl))
-
-
-class JsonTest(common.HeatTestCase):
-
-    def setUp(self):
-        super(JsonTest, self).setUp()
-        self.sqltype = db_types.Json()
-
-    def test_process_bind_param(self):
-        dialect = None
-        value = {'foo': 'bar'}
-        result = self.sqltype.process_bind_param(value, dialect)
-        self.assertEqual('{"foo": "bar"}', result)
-
-    def test_process_bind_param_null(self):
-        dialect = None
-        value = None
-        result = self.sqltype.process_bind_param(value, dialect)
-        self.assertEqual('null', result)
-
-    def test_process_result_value(self):
-        dialect = None
-        value = '{"foo": "bar"}'
-        result = self.sqltype.process_result_value(value, dialect)
-        self.assertEqual({'foo': 'bar'}, result)
-
-    def test_process_result_value_null(self):
-        dialect = None
-        value = None
-        result = self.sqltype.process_result_value(value, dialect)
-        self.assertIsNone(result)