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diff --git a/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistryBuilderTest.java b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistryBuilderTest.java
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+++ b/infra/translate-impl/src/test/java/io/fd/honeycomb/translate/impl/write/registry/FlatWriterRegistryBuilderTest.java
@@ -0,0 +1,193 @@
+/*
+ * 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.translate.impl.write.registry;
+
+import static org.hamcrest.CoreMatchers.anyOf;
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Multimaps;
+import com.google.common.collect.Sets;
+import io.fd.honeycomb.translate.util.DataObjects;
+import io.fd.honeycomb.translate.write.DataObjectUpdate;
+import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.translate.write.Writer;
+import io.fd.honeycomb.translate.write.registry.WriterRegistry;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import org.hamcrest.CoreMatchers;
+import org.junit.Test;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public class FlatWriterRegistryBuilderTest {
+
+ @Test
+ public void testRelationsBefore() throws Exception {
+ final FlatWriterRegistryBuilder flatWriterRegistryBuilder = new FlatWriterRegistryBuilder();
+ /*
+ 1 -> 2 -> 3
+ -> 4
+ */
+ flatWriterRegistryBuilder.add(mockWriter(DataObjects.DataObject3.class));
+ flatWriterRegistryBuilder.add(mockWriter(DataObjects.DataObject4.class));
+ flatWriterRegistryBuilder.addBefore(mockWriter(DataObjects.DataObject2.class),
+ Lists.newArrayList(DataObjects.DataObject3.IID, DataObjects.DataObject4.IID));
+ flatWriterRegistryBuilder.addBefore(mockWriter(DataObjects.DataObject1.class), DataObjects.DataObject2.IID);
+ final ImmutableMap<InstanceIdentifier<?>, Writer<?>> mappedWriters =
+ flatWriterRegistryBuilder.getMappedHandlers();
+
+ final ArrayList<InstanceIdentifier<?>> typesInList = Lists.newArrayList(mappedWriters.keySet());
+ assertEquals(DataObjects.DataObject1.IID, typesInList.get(0));
+ assertEquals(DataObjects.DataObject2.IID, typesInList.get(1));
+ assertThat(typesInList.get(2), anyOf(equalTo(DataObjects.DataObject3.IID), equalTo(DataObjects.DataObject4.IID)));
+ assertThat(typesInList.get(3), anyOf(equalTo(DataObjects.DataObject3.IID), equalTo(DataObjects.DataObject4.IID)));
+ }
+
+ @Test
+ public void testBuild() throws Exception {
+ final FlatWriterRegistryBuilder flatWriterRegistryBuilder = new FlatWriterRegistryBuilder();
+ final Writer<? extends DataObject> writer = mockWriter(DataObjects.DataObject3.class);
+ flatWriterRegistryBuilder.add(writer);
+ final WriterRegistry build = flatWriterRegistryBuilder.build();
+
+ final InstanceIdentifier<DataObjects.DataObject3> id = InstanceIdentifier.create(DataObjects.DataObject3.class);
+ final DataObjectUpdate update = mock(DataObjectUpdate.class);
+ doReturn(id).when(update).getId();
+ final DataObjects.DataObject3 before = mock(DataObjects.DataObject3.class);
+ final DataObjects.DataObject3 after = mock(DataObjects.DataObject3.class);
+ when(update.getDataBefore()).thenReturn(before);
+ when(update.getDataAfter()).thenReturn(after);
+
+ WriterRegistry.DataObjectUpdates updates = new WriterRegistry.DataObjectUpdates(
+ Multimaps.forMap(Collections.singletonMap(id, update)),
+ Multimaps.forMap(Collections.emptyMap()));
+ final WriteContext ctx = mock(WriteContext.class);
+ build.update(updates, ctx);
+
+ verify(writer).update(id, before, after, ctx);
+ }
+
+ @Test(expected = IllegalArgumentException.class)
+ public void testBuildUnknownWriter() throws Exception {
+ final FlatWriterRegistryBuilder flatWriterRegistryBuilder = new FlatWriterRegistryBuilder();
+ final Writer<? extends DataObject> writer = mockWriter(DataObjects.DataObject3.class);
+ flatWriterRegistryBuilder.add(writer);
+ final WriterRegistry build = flatWriterRegistryBuilder.build();
+
+ final InstanceIdentifier<DataObjects.DataObject1> id2 = InstanceIdentifier.create(DataObjects.DataObject1.class);
+ final DataObjectUpdate update2 = mock(DataObjectUpdate.class);
+ final WriterRegistry.DataObjectUpdates updates = new WriterRegistry.DataObjectUpdates(
+ Multimaps.forMap(Collections.singletonMap(id2, update2)),
+ Multimaps.forMap(Collections.emptyMap()));
+ build.update(updates, mock(WriteContext.class));
+ }
+
+ @Test
+ public void testRelationsAfter() throws Exception {
+ final FlatWriterRegistryBuilder flatWriterRegistryBuilder = new FlatWriterRegistryBuilder();
+ /*
+ 1 -> 2 -> 3
+ -> 4
+ */
+ flatWriterRegistryBuilder.add(mockWriter(DataObjects.DataObject1.class));
+ flatWriterRegistryBuilder.addAfter(mockWriter(DataObjects.DataObject2.class), DataObjects.DataObject1.IID);
+ flatWriterRegistryBuilder.addAfter(mockWriter(DataObjects.DataObject3.class), DataObjects.DataObject2.IID);
+ flatWriterRegistryBuilder.addAfter(mockWriter(DataObjects.DataObject4.class),
+ Lists.newArrayList(DataObjects.DataObject2.IID, DataObjects.DataObject3.IID));
+ final ImmutableMap<InstanceIdentifier<?>, Writer<?>> mappedWriters =
+ flatWriterRegistryBuilder.getMappedHandlers();
+
+ final List<InstanceIdentifier<?>> typesInList = Lists.newArrayList(mappedWriters.keySet());
+ assertEquals(DataObjects.DataObject1.IID, typesInList.get(0));
+ assertEquals(DataObjects.DataObject2.IID, typesInList.get(1));
+ assertThat(typesInList.get(2), anyOf(equalTo(DataObjects.DataObject3.IID), equalTo(DataObjects.DataObject4.IID)));
+ assertThat(typesInList.get(3), anyOf(equalTo(DataObjects.DataObject3.IID), equalTo(DataObjects.DataObject4.IID)));
+ }
+
+ @Test(expected = IllegalArgumentException.class)
+ public void testRelationsLoop() throws Exception {
+ final FlatWriterRegistryBuilder flatWriterRegistryBuilder = new FlatWriterRegistryBuilder();
+ /*
+ 1 -> 2 -> 1
+ */
+ flatWriterRegistryBuilder.add(mockWriter(DataObjects.DataObject1.class));
+ flatWriterRegistryBuilder.addAfter(mockWriter(DataObjects.DataObject2.class), DataObjects.DataObject1.IID);
+ flatWriterRegistryBuilder.addAfter(mockWriter(DataObjects.DataObject1.class), DataObjects.DataObject2.IID);
+ }
+
+ @Test(expected = IllegalArgumentException.class)
+ public void testAddWriterTwice() throws Exception {
+ final FlatWriterRegistryBuilder flatWriterRegistryBuilder = new FlatWriterRegistryBuilder();
+ flatWriterRegistryBuilder.add(mockWriter(DataObjects.DataObject1.class));
+ flatWriterRegistryBuilder.add(mockWriter(DataObjects.DataObject1.class));
+ }
+
+ @Test
+ public void testAddSubtreeWriter() throws Exception {
+ final FlatWriterRegistryBuilder flatWriterRegistryBuilder = new FlatWriterRegistryBuilder();
+ flatWriterRegistryBuilder.subtreeAdd(
+ Sets.newHashSet(DataObjects.DataObject4.DataObject41.IID,
+ DataObjects.DataObject4.DataObject41.IID),
+ mockWriter(DataObjects.DataObject4.class));
+ final ImmutableMap<InstanceIdentifier<?>, Writer<?>> mappedWriters =
+ flatWriterRegistryBuilder.getMappedHandlers();
+ final ArrayList<InstanceIdentifier<?>> typesInList = Lists.newArrayList(mappedWriters.keySet());
+
+ assertEquals(DataObjects.DataObject4.IID, typesInList.get(0));
+ assertEquals(1, typesInList.size());
+ }
+
+ @Test
+ public void testCreateSubtreeWriter() throws Exception {
+ final Writer<?> forWriter = SubtreeWriter.createForWriter(Sets.newHashSet(
+ DataObjects.DataObject4.DataObject41.IID,
+ DataObjects.DataObject4.DataObject41.DataObject411.IID,
+ DataObjects.DataObject4.DataObject42.IID),
+ mockWriter(DataObjects.DataObject4.class));
+ assertThat(forWriter, instanceOf(SubtreeWriter.class));
+ assertThat(((SubtreeWriter<?>) forWriter).getHandledChildTypes().size(), is(3));
+ assertThat(((SubtreeWriter<?>) forWriter).getHandledChildTypes(), CoreMatchers.hasItems(DataObjects.DataObject4.DataObject41.IID,
+ DataObjects.DataObject4.DataObject42.IID, DataObjects.DataObject4.DataObject41.DataObject411.IID));
+ }
+
+ @Test(expected = IllegalArgumentException.class)
+ public void testCreateInvalidSubtreeWriter() throws Exception {
+ SubtreeWriter.createForWriter(Sets.newHashSet(
+ InstanceIdentifier.create(DataObjects.DataObject3.class).child(DataObjects.DataObject3.DataObject31.class)),
+ mockWriter(DataObjects.DataObject4.class));
+ }
+
+ @SuppressWarnings("unchecked")
+ private Writer<? extends DataObject> mockWriter(final Class<? extends DataObject> doClass)
+ throws NoSuchFieldException, IllegalAccessException {
+ final Writer mock = mock(Writer.class);
+ when(mock.getManagedDataObjectType()).thenReturn((InstanceIdentifier<?>) doClass.getDeclaredField("IID").get(null));
+ return mock;
+ }
+
+} \ No newline at end of file