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diff --git a/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapterTest.java b/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapterTest.java
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+++ b/infra/data-impl/src/test/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapterTest.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * 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 io.fd.honeycomb.data.impl;
+
+import static org.junit.Assert.fail;
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.opendaylight.controller.sal.core.api.model.SchemaService;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
+
+public class PersistingDataTreeAdapterTest {
+
+ @Mock
+ private DataTree delegatingDataTree;
+ @Mock
+ private SchemaService schemaService;
+ @Mock
+ private DataTreeSnapshot snapshot;
+
+ private Path tmpPersistFile;
+
+ private PersistingDataTreeAdapter persistingDataTreeAdapter;
+
+ @Before
+ public void setUp() throws Exception {
+ MockitoAnnotations.initMocks(this);
+ tmpPersistFile = Files.createTempFile("testing-hc-persistence", "json");
+ persistingDataTreeAdapter = new PersistingDataTreeAdapter(delegatingDataTree, schemaService, tmpPersistFile);
+ }
+
+ @Test
+ public void testNoPersistOnFailure() throws Exception {
+ doThrow(new IllegalStateException("testing errors")).when(delegatingDataTree).commit(any(DataTreeCandidate.class));
+
+ try {
+ persistingDataTreeAdapter.commit(null);
+ fail("Exception expected");
+ } catch (IllegalStateException e) {
+ verify(delegatingDataTree, times(0)).takeSnapshot();
+ verify(delegatingDataTree).commit(any(DataTreeCandidate.class));
+ }
+ }
+
+} \ No newline at end of file