opendaylight/md-sal/sal-clustering-commons/src/test/java/org/opendaylight/controller/cluster/datastore/node/utils/transformer/NormalizedNodePrunerTest.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.cluster.datastore.node.utils.transformer;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertNotEquals;
  12 import static org.junit.Assert.assertTrue;
  13 import static org.mockito.Mockito.mock;
  14 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.mapEntry;
  15 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.mapEntryBuilder;
  16 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.mapNodeBuilder;
  17
  18 import com.google.common.collect.Sets;
  19 import java.io.IOException;
  20 import java.util.Optional;
  21 import java.util.concurrent.atomic.AtomicInteger;
  22 import javax.xml.transform.dom.DOMSource;
  23 import org.junit.Test;
  24 import org.junit.runner.RunWith;
  25 import org.mockito.junit.MockitoJUnitRunner;
  26 import org.opendaylight.controller.cluster.datastore.node.utils.NormalizedNodeNavigator;
  27 import org.opendaylight.controller.cluster.datastore.util.TestModel;
  28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
  30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  31 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
  32 import org.opendaylight.yangtools.yang.data.api.schema.DOMSourceAnyxmlNode;
  33 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
  34 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
  35 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  36 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  37 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter;
  38 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  39 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  40 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetEntryNodeBuilder;
  41 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetNodeBuilder;
  42 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  43
  44 @RunWith(MockitoJUnitRunner.StrictStubs.class)
  45 public class NormalizedNodePrunerTest {
  46     private static final EffectiveModelContext NO_TEST_SCHEMA = TestModel.createTestContextWithoutTestSchema();
  47     private static final EffectiveModelContext NO_AUG_SCHEMA = TestModel.createTestContextWithoutAugmentationSchema();
  48     private static final EffectiveModelContext FULL_SCHEMA = TestModel.createTestContext();
  49
  50     private static AbstractNormalizedNodePruner prunerFullSchema(final YangInstanceIdentifier path) {
  51         final ReusableNormalizedNodePruner pruner = ReusableNormalizedNodePruner.forSchemaContext(FULL_SCHEMA);
  52         pruner.initializeForPath(path);
  53         return pruner;
  54     }
  55
  56     private static AbstractNormalizedNodePruner prunerNoAugSchema(final YangInstanceIdentifier path) {
  57         final ReusableNormalizedNodePruner pruner = ReusableNormalizedNodePruner.forSchemaContext(NO_AUG_SCHEMA);
  58         pruner.initializeForPath(path);
  59         return pruner;
  60     }
  61
  62     private static AbstractNormalizedNodePruner prunerNoTestSchema(final YangInstanceIdentifier path) {
  63         final ReusableNormalizedNodePruner pruner = ReusableNormalizedNodePruner.forSchemaContext(NO_TEST_SCHEMA);
  64         pruner.initializeForPath(path);
  65         return pruner;
  66     }
  67
  68     @Test
  69     public void testNodesNotPrunedWhenSchemaPresent() throws IOException {
  70         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH);
  71
  72         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
  73
  74         NormalizedNode<?, ?> expected = createTestContainer();
  75
  76         normalizedNodeWriter.write(expected);
  77
  78         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
  79
  80         assertEquals(expected, actual);
  81
  82     }
  83
  84     @Test(expected = IllegalStateException.class)
  85     public void testReusePruner() throws IOException {
  86         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH);
  87
  88         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
  89
  90         NormalizedNode<?, ?> expected = createTestContainer();
  91
  92         normalizedNodeWriter.write(expected);
  93
  94         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
  95
  96         assertEquals(expected, actual);
  97
  98         NormalizedNodeWriter.forStreamWriter(pruner).write(expected);
  99
 100     }
 101
 102
 103     @Test
 104     public void testNodesPrunedWhenAugmentationSchemaMissing() throws IOException {
 105         AbstractNormalizedNodePruner pruner = prunerNoAugSchema(TestModel.TEST_PATH);
 106
 107         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
 108
 109         NormalizedNode<?, ?> expected = createTestContainer();
 110
 111         normalizedNodeWriter.write(expected);
 112
 113         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 114
 115         assertNotEquals(expected, actual);
 116
 117         // Asserting true here instead of checking actual value because I don't want this assertion to be fragile
 118         assertTrue(countNodes(expected, "store:aug") > 0);
 119
 120         // All nodes from the augmentation module are gone from the resulting node
 121         assertEquals(0, countNodes(actual, "store:aug"));
 122     }
 123
 124     @Test
 125     public void testNodesPrunedWhenTestSchemaMissing() throws IOException {
 126         AbstractNormalizedNodePruner pruner = prunerNoTestSchema(TestModel.TEST_PATH);
 127
 128         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
 129
 130         NormalizedNode<?, ?> expected = createTestContainer();
 131
 132         normalizedNodeWriter.write(expected);
 133
 134         // Since top level schema is missing empty is returned
 135         assertEquals(Optional.empty(), pruner.getResult());
 136
 137         // Asserting true here instead of checking actual value because I don't want this assertion to be fragile
 138         assertTrue(countNodes(expected, "urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test") > 0);
 139
 140     }
 141
 142     private static int countNodes(final NormalizedNode<?,?> normalizedNode, final String namespaceFilter) {
 143         if (normalizedNode == null) {
 144             return 0;
 145         }
 146         final AtomicInteger count = new AtomicInteger();
 147         new NormalizedNodeNavigator((level, parentPath, normalizedNode1) -> {
 148             if (!(normalizedNode1.getIdentifier() instanceof AugmentationIdentifier)) {
 149                 if (normalizedNode1.getIdentifier().getNodeType().getNamespace().toString().contains(namespaceFilter)) {
 150                     count.incrementAndGet();
 151                 }
 152             }
 153         }).navigate(YangInstanceIdentifier.empty().toString(), normalizedNode);
 154
 155         return count.get();
 156     }
 157
 158     @Test
 159     public void testLeafNodeNotPrunedWhenHasNoParent() throws IOException {
 160         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.DESC_QNAME));
 161         NormalizedNode<?, ?> input = Builders.leafBuilder().withNodeIdentifier(
 162                 new NodeIdentifier(TestModel.DESC_QNAME)).withValue("test").build();
 163         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 164
 165         assertEquals("normalizedNode", input, pruner.getResult().orElseThrow());
 166     }
 167
 168     @Test
 169     public void testLeafNodePrunedWhenHasAugmentationParentAndSchemaMissing() throws IOException {
 170         AugmentationIdentifier augId = new AugmentationIdentifier(Sets.newHashSet(TestModel.AUG_CONT_QNAME));
 171         AbstractNormalizedNodePruner pruner = prunerFullSchema(YangInstanceIdentifier.builder()
 172                 .node(TestModel.TEST_QNAME).node(TestModel.AUGMENTED_LIST_QNAME)
 173                         .node(TestModel.AUGMENTED_LIST_QNAME).node(augId).build());
 174         LeafNode<Object> child = Builders.leafBuilder().withNodeIdentifier(
 175                 new NodeIdentifier(TestModel.INVALID_QNAME)).withValue("test").build();
 176         NormalizedNode<?, ?> input = Builders.augmentationBuilder().withNodeIdentifier(augId).withChild(child).build();
 177         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 178
 179         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 180         assertEquals("normalizedNode", Builders.augmentationBuilder().withNodeIdentifier(augId).build(), actual);
 181     }
 182
 183     @Test
 184     public void testLeafNodePrunedWhenHasNoParentAndSchemaMissing() throws IOException {
 185         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.INVALID_QNAME));
 186         NormalizedNode<?, ?> input = Builders.leafBuilder().withNodeIdentifier(
 187                 new NodeIdentifier(TestModel.INVALID_QNAME)).withValue("test").build();
 188         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 189
 190         assertEquals(Optional.empty(), pruner.getResult());
 191     }
 192
 193     @Test
 194     public void testLeafSetEntryNodeNotPrunedWhenHasNoParent() throws IOException {
 195         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.SHOE_QNAME));
 196         NormalizedNode<?, ?> input = Builders.leafSetEntryBuilder().withValue("puma").withNodeIdentifier(
 197                 new NodeWithValue<>(TestModel.SHOE_QNAME, "puma")).build();
 198         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 199
 200         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 201         assertEquals("normalizedNode", input, actual);
 202     }
 203
 204     @Test
 205     public void testLeafSetEntryNodeNotPrunedWhenHasParent() throws IOException {
 206         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.SHOE_QNAME));
 207         LeafSetEntryNode<Object> child = Builders.leafSetEntryBuilder().withValue("puma").withNodeIdentifier(
 208                 new NodeWithValue<>(TestModel.SHOE_QNAME, "puma")).build();
 209         NormalizedNode<?, ?> input = Builders.leafSetBuilder().withNodeIdentifier(
 210                 new NodeIdentifier(TestModel.SHOE_QNAME)).withChild(child).build();
 211         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 212
 213         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 214         assertEquals("normalizedNode", input, actual);
 215     }
 216
 217     @Test
 218     public void testLeafSetEntryNodePrunedWhenHasNoParentAndSchemaMissing() throws IOException {
 219         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.INVALID_QNAME));
 220         NormalizedNode<?, ?> input = Builders.leafSetEntryBuilder().withValue("test").withNodeIdentifier(
 221                 new NodeWithValue<>(TestModel.INVALID_QNAME, "test")).build();
 222         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 223
 224         assertEquals(Optional.empty(), pruner.getResult());
 225     }
 226
 227     @Test
 228     public void testLeafSetEntryNodePrunedWhenHasParentAndSchemaMissing() throws IOException {
 229         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.INVALID_QNAME));
 230         LeafSetEntryNode<Object> child = Builders.leafSetEntryBuilder().withValue("test").withNodeIdentifier(
 231                 new NodeWithValue<>(TestModel.INVALID_QNAME, "test")).build();
 232         NormalizedNode<?, ?> input = Builders.leafSetBuilder().withNodeIdentifier(
 233                 new NodeIdentifier(TestModel.INVALID_QNAME)).withChild(child).build();
 234         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 235
 236         assertEquals(Optional.empty(), pruner.getResult());
 237     }
 238
 239     @Test
 240     public void testAnyXMLNodeNotPrunedWhenHasNoParent() throws IOException {
 241         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.ANY_XML_QNAME));
 242         NormalizedNode<?, ?> input = Builders.anyXmlBuilder().withNodeIdentifier(
 243                 new NodeIdentifier(TestModel.ANY_XML_QNAME)).withValue(mock(DOMSource.class)).build();
 244         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 245
 246         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 247         assertEquals("normalizedNode", input, actual);
 248     }
 249
 250     @Test
 251     public void testAnyXMLNodeNotPrunedWhenHasParent() throws IOException {
 252         AbstractNormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH);
 253         DOMSourceAnyxmlNode child = Builders.anyXmlBuilder().withNodeIdentifier(
 254                 new NodeIdentifier(TestModel.ANY_XML_QNAME)).withValue(mock(DOMSource.class)).build();
 255         NormalizedNode<?, ?> input = Builders.containerBuilder().withNodeIdentifier(
 256                 new NodeIdentifier(TestModel.TEST_QNAME)).withChild(child).build();
 257         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 258
 259         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 260         assertEquals("normalizedNode", input, actual);
 261     }
 262
 263     @Test
 264     public void testAnyXmlNodePrunedWhenHasNoParentAndSchemaMissing() throws IOException {
 265         AbstractNormalizedNodePruner pruner = prunerNoTestSchema(TestModel.TEST_PATH.node(TestModel.ANY_XML_QNAME));
 266         NormalizedNode<?, ?> input = Builders.anyXmlBuilder().withNodeIdentifier(
 267                 new NodeIdentifier(TestModel.ANY_XML_QNAME)).withValue(mock(DOMSource.class)).build();
 268         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 269
 270         assertEquals(Optional.empty(), pruner.getResult());
 271     }
 272
 273     @Test
 274     public void testInnerContainerNodeWithFullPathPathNotPruned() throws IOException {
 275         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 276                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 277                 .node(TestModel.INNER_LIST_QNAME).nodeWithKey(TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one")
 278                 .node(TestModel.INNER_CONTAINER_QNAME).build();
 279         AbstractNormalizedNodePruner pruner = prunerFullSchema(path);
 280
 281         NormalizedNode<?, ?> input = ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME);
 282         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 283
 284         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 285         assertEquals("normalizedNode", input, actual);
 286     }
 287
 288     @Test
 289     public void testInnerContainerNodeWithFullPathPrunedWhenSchemaMissing() throws IOException {
 290         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 291                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 292                 .node(TestModel.INNER_LIST_QNAME).nodeWithKey(TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one")
 293                 .node(TestModel.INVALID_QNAME).build();
 294         AbstractNormalizedNodePruner pruner = prunerFullSchema(path);
 295
 296         NormalizedNode<?, ?> input = ImmutableNodes.containerNode(TestModel.INVALID_QNAME);
 297         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 298
 299         assertEquals(Optional.empty(), pruner.getResult());
 300     }
 301
 302     @Test
 303     public void testInnerContainerNodeWithParentPathPrunedWhenSchemaMissing() throws IOException {
 304         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 305                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 306                 .build();
 307         AbstractNormalizedNodePruner pruner = prunerFullSchema(path);
 308
 309         MapNode innerList = mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(mapEntryBuilder(
 310                 TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").withChild(
 311                         ImmutableNodes.containerNode(TestModel.INVALID_QNAME)).build()).build();
 312         NormalizedNode<?, ?> input = mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 313                 .withChild(innerList).build();
 314         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 315
 316         NormalizedNode<?, ?> expected = mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 317                 .withChild(mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(mapEntryBuilder(
 318                     TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").build()).build()).build();
 319         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 320         assertEquals("normalizedNode", expected, actual);
 321     }
 322
 323     @Test
 324     public void testInnerListNodeWithFullPathNotPruned() throws IOException {
 325         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 326                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 327                 .node(TestModel.INNER_LIST_QNAME).build();
 328         AbstractNormalizedNodePruner pruner = prunerFullSchema(path);
 329
 330         MapNode input = mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(mapEntryBuilder(
 331                 TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").withChild(
 332                         ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME)).build()).build();
 333         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 334
 335         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 336         assertEquals("normalizedNode", input, actual);
 337     }
 338
 339     @Test
 340     public void testInnerListNodeWithFullPathPrunedWhenSchemaMissing() throws IOException {
 341         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 342                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 343                 .node(TestModel.INVALID_QNAME).build();
 344         AbstractNormalizedNodePruner pruner = prunerFullSchema(path);
 345
 346         MapNode input = mapNodeBuilder(TestModel.INVALID_QNAME).withChild(mapEntryBuilder(
 347                 TestModel.INVALID_QNAME, TestModel.NAME_QNAME, "one").withChild(
 348                         ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME)).build()).build();
 349         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 350
 351         assertEquals(Optional.empty(), pruner.getResult());
 352     }
 353
 354     @Test
 355     public void testInnerListNodeWithParentPathPrunedWhenSchemaMissing() throws IOException {
 356         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 357                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 358                 .build();
 359         AbstractNormalizedNodePruner pruner = prunerFullSchema(path);
 360
 361         MapNode innerList = mapNodeBuilder(TestModel.INVALID_QNAME).withChild(mapEntryBuilder(
 362                 TestModel.INVALID_QNAME, TestModel.NAME_QNAME, "one").withChild(
 363                         ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME)).build()).build();
 364         NormalizedNode<?, ?> input = mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 365                 .withChild(innerList).build();
 366         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 367
 368         NormalizedNode<?, ?> expected = mapEntry(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1);
 369         NormalizedNode<?, ?> actual = pruner.getResult().orElseThrow();
 370         assertEquals("normalizedNode", expected, actual);
 371     }
 372
 373     private static NormalizedNode<?, ?> createTestContainer() {
 374         byte[] bytes1 = {1, 2, 3};
 375         LeafSetEntryNode<Object> entry1 = ImmutableLeafSetEntryNodeBuilder.create().withNodeIdentifier(
 376                 new NodeWithValue<>(TestModel.BINARY_LEAF_LIST_QNAME, bytes1)).withValue(bytes1).build();
 377
 378         byte[] bytes2 = {};
 379         LeafSetEntryNode<Object> entry2 = ImmutableLeafSetEntryNodeBuilder.create().withNodeIdentifier(
 380                 new NodeWithValue<>(TestModel.BINARY_LEAF_LIST_QNAME, bytes2)).withValue(bytes2).build();
 381
 382         return TestModel.createBaseTestContainerBuilder()
 383                 .withChild(ImmutableLeafSetNodeBuilder.create().withNodeIdentifier(
 384                         new NodeIdentifier(TestModel.BINARY_LEAF_LIST_QNAME))
 385                         .withChild(entry1).withChild(entry2).build())
 386                 .withChild(ImmutableNodes.leafNode(TestModel.SOME_BINARY_DATA_QNAME, new byte[]{1, 2, 3, 4}))
 387                 .build();
 388     }
 389 }