diff --git a/tripleo_validations/tests/fakes.py b/tripleo_validations/tests/fakes.py
index a8397364c..2119d92f8 100644
--- a/tripleo_validations/tests/fakes.py
+++ b/tripleo_validations/tests/fakes.py
@@ -33,3 +33,69 @@ MOCK_CPUS_RET_VALUE = (
         {'numa_node': 1, 'thread_siblings': [5, 7], 'cpu': 5},
         {'numa_node': 1, 'thread_siblings': [9, 11], 'cpu': 9}
     ])
+
+MOCK_ROLES_INFO = [
+    {
+        'name': 'foo',
+        'flavor': 'bar',
+        'count': 9999}]
+
+MOCK_FLAVORS = {
+    'ok': {
+        'bar': {
+            'keys': {
+                'resources:fizz': 'fizz',
+                'resources:buzz': 'buzz',
+                'resources:DISK_GB': 1,
+                'MEMORY_MB': 10,
+                'VCPU': 100
+            }
+        }
+    },
+    'fail_NOVCPU': {
+        'bar': {
+            'keys': {
+                'resources:fizz': 'fizz',
+                'resources:buzz': 'buzz',
+                'resources:DISK_GB': 1,
+                'MEMORY_MB': 10
+            }
+        }
+    }
+}
+
+MOCK_FLAVORS_CHECK_EXPECTED = {
+    'ok': (
+            {'bar': (
+                ({'keys': {
+                    'resources:fizz': 'fizz',
+                    'resources:buzz': 'buzz',
+                    'resources:DISK_GB': 1,
+                    'MEMORY_MB': 10,
+                    'VCPU': 100
+                }},
+                9999)
+            )},
+            [],
+            [
+                'Flavor bar does not have a custom resource class associated with it',
+                'Flavor bar has to have scheduling based on standard properties disabled by setting resources:VCPU=0 resources:MEMORY_MB=0 resources:DISK_GB=0 in the flavor property'
+            ]
+    ),
+    'fail_NOVCPU': (
+            {'bar': (
+                ({'keys': {
+                    'resources:fizz': 'fizz',
+                    'resources:buzz': 'buzz',
+                    'resources:DISK_GB': 1,
+                    'MEMORY_MB': 10,
+                }},
+                9999)
+            )},
+            [],
+            [
+                'Flavor bar does not have a custom resource class associated with it',
+                'Flavor bar has to have scheduling based on standard properties disabled by setting resources:VCPU=0 resources:MEMORY_MB=0 resources:DISK_GB=0 in the flavor property'
+            ]
+    )
+}
diff --git a/tripleo_validations/tests/library/test_check_flavors.py b/tripleo_validations/tests/library/test_check_flavors.py
new file mode 100644
index 000000000..e6f97a1a7
--- /dev/null
+++ b/tripleo_validations/tests/library/test_check_flavors.py
@@ -0,0 +1,67 @@
+# -*- coding: utf-8 -*-
+
+# 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.
+
+"""
+test_check_flavors
+--------------
+
+Tests for the `check_flavors` module.
+"""
+try:
+    from unittest import mock
+except ImportError:
+    import mock
+
+from tripleo_validations.tests import base
+from tripleo_validations.tests import fakes
+from library import check_flavors
+
+
+class TestCheckFlavors(base.TestCase):
+
+    def setUp(self):
+        self.tested_module = check_flavors
+        return super().setUp()
+
+    def test_module_init(self):
+
+        expepect_attrs = set(
+            [
+                'DOCUMENTATION',
+                'EXAMPLES',
+                'main'])
+
+        actual_attrs = set(dir(self.tested_module))
+
+        self.assertTrue(expepect_attrs.issubset(actual_attrs))
+
+    def test_validate_roles_and_flavors(self):
+        expected_values = fakes.MOCK_FLAVORS_CHECK_EXPECTED['ok']
+
+        return_value = self.tested_module.validate_roles_and_flavors(
+            fakes.MOCK_ROLES_INFO,
+            fakes.MOCK_FLAVORS['ok'])
+        self.assertEqual(expected_values, return_value)
+
+    def test_validate_roles_and_flavors_nocpu(self):
+        """Tests situation when the 'VCPU' key doesn't have associated value.
+        'DISK_GB' and 'MEMORY_MB' behave the same way,
+        so we don't need to test them. For now at least.
+        """
+        expected_values = fakes.MOCK_FLAVORS_CHECK_EXPECTED['fail_NOVCPU']
+
+        return_value = self.tested_module.validate_roles_and_flavors(
+            fakes.MOCK_ROLES_INFO,
+            fakes.MOCK_FLAVORS['fail_NOVCPU'])
+        self.assertEqual(expected_values, return_value)