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diff --git a/ice_validator/tests/test_nested_templates.py b/ice_validator/tests/test_nested_templates.py
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+++ b/ice_validator/tests/test_nested_templates.py
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+# -*- coding: utf8 -*-
+# ============LICENSE_START=======================================================
+# org.onap.vvp/validation-scripts
+# ===================================================================
+# Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+# ===================================================================
+#
+# Unless otherwise specified, all software contained herein is licensed
+# under the Apache License, Version 2.0 (the “License”);
+# you may not use this software 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.
+#
+#
+#
+# Unless otherwise specified, all documentation contained herein is licensed
+# under the Creative Commons License, Attribution 4.0 Intl. (the “License”);
+# you may not use this documentation except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#             https://creativecommons.org/licenses/by/4.0/
+#
+# Unless required by applicable law or agreed to in writing, documentation
+# 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.
+#
+# ============LICENSE_END============================================
+#
+# ECOMP is a trademark and service mark of AT&T Intellectual Property.
+#
+
+import yaml
+from os import path
+from .utils.nested_files import get_list_of_nested_files
+
+
+def test_all_nested_templates_provided(yaml_files):
+    '''
+    Check that all templates marked as volume templates are
+    in fact volume templates
+    '''
+    nested_yaml_files = []
+
+    for yaml_file in yaml_files:
+        with open(yaml_file) as fh:
+            yml = yaml.load(fh)
+        if "resources" not in yml:
+            continue
+        nested_yaml_files.extend(get_list_of_nested_files(
+                yml["resources"], path.dirname(yaml_file)))
+
+    # detect all provided nested files
+    provided_nested_yaml_files = [f1
+                                  for f1 in nested_yaml_files
+                                  for f2 in yaml_files
+                                  if f1 in f2]
+
+    assert set(provided_nested_yaml_files) == set(nested_yaml_files)