Add UT for zusammen adaptor

Change-Id: I80720b3c322b55ae39b363f3042c9f0efb5e1510
Issue-ID: SDC-1822
Signed-off-by: talig <talig@amdocs.com>

1 files changed, 32 insertions, 3 deletions

diff --git a/openecomp-be/lib/openecomp-sdc-versioning-lib/openecomp-sdc-versioning-core/src/main/java/org/openecomp/sdc/versioning/dao/impl/VersionableEntityDaoZusammenImpl.java b/openecomp-be/lib/openecomp-sdc-versioning-lib/openecomp-sdc-versioning-core/src/main/java/org/openecomp/sdc/versioning/dao/impl/VersionableEntityDaoZusammenImpl.java
index 9e12d0dec9..f90ef79290 100644
--- a/openecomp-be/lib/openecomp-sdc-versioning-lib/openecomp-sdc-versioning-core/src/main/java/org/openecomp/sdc/versioning/dao/impl/VersionableEntityDaoZusammenImpl.java
+++ b/openecomp-be/lib/openecomp-sdc-versioning-lib/openecomp-sdc-versioning-core/src/main/java/org/openecomp/sdc/versioning/dao/impl/VersionableEntityDaoZusammenImpl.java
@@ -1,17 +1,35 @@
+/*
+ * Copyright © 2016-2018 European Support Limited
+ *
+ * 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.
+ */
+
 package org.openecomp.sdc.versioning.dao.impl;
 
 import com.amdocs.zusammen.datatypes.Id;
 import com.amdocs.zusammen.datatypes.SessionContext;
 import com.amdocs.zusammen.datatypes.item.ItemVersion;
 import com.amdocs.zusammen.datatypes.itemversion.Tag;
+import java.util.Collection;
+import java.util.Comparator;
+import java.util.Optional;
+import org.apache.commons.collections4.CollectionUtils;
 import org.openecomp.core.zusammen.api.ZusammenAdaptor;
 import org.openecomp.core.zusammen.api.ZusammenUtil;
 import org.openecomp.sdc.versioning.dao.VersionableEntityDao;
 import org.openecomp.sdc.versioning.dao.types.Version;
 import org.openecomp.sdc.versioning.types.VersionableEntityMetadata;
 
-import java.util.Optional;
-
 public class VersionableEntityDaoZusammenImpl implements VersionableEntityDao {
 
   private ZusammenAdaptor zusammenAdaptor;
@@ -47,9 +65,20 @@ public class VersionableEntityDaoZusammenImpl implements VersionableEntityDao {
 
   // TODO: 3/19/2017 move to a common util
   private Id getItemVersionId(Id itemId, SessionContext context) {
-    Optional<ItemVersion> itemVersionOptional = zusammenAdaptor.getFirstVersion(context, itemId);
+    Optional<ItemVersion> itemVersionOptional = getFirstVersion(context, itemId);
     ItemVersion itemVersion = itemVersionOptional.orElseThrow(() ->
         new RuntimeException(String.format("No version was found for item %s.", itemId)));
     return itemVersion.getId();
   }
+
+  private Optional<ItemVersion> getFirstVersion(SessionContext context, Id itemId) {
+    Collection<ItemVersion> versions = zusammenAdaptor.listPublicVersions(context, itemId);
+    return CollectionUtils.isEmpty(versions)
+                   ? Optional.empty()
+                   : versions.stream().min(getVersionModificationTimeDescComparator());
+  }
+
+  private static Comparator<ItemVersion> getVersionModificationTimeDescComparator() {
+    return (o1, o2) -> Integer.compare(o2.getId().getValue().length(), o1.getId().getValue().length());
+  }
 }