parser/yang-parser-rfc7950/src/test/java/org/opendaylight/yangtools/yang/stmt/GroupingTest.java

   1 /*
   2  * Copyright (c) 2016 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.yangtools.yang.stmt;
   9
  10 import static org.hamcrest.CoreMatchers.instanceOf;
  11 import static org.hamcrest.MatcherAssert.assertThat;
  12 import static org.junit.Assert.assertEquals;
  13 import static org.junit.Assert.assertFalse;
  14 import static org.junit.Assert.assertNotNull;
  15 import static org.junit.Assert.assertNull;
  16 import static org.junit.Assert.assertTrue;
  17 import static org.opendaylight.yangtools.yang.stmt.StmtTestUtils.assertPathEquals;
  18
  19 import java.util.Arrays;
  20 import java.util.Collection;
  21 import java.util.Map;
  22 import java.util.Optional;
  23 import java.util.stream.Collectors;
  24 import org.eclipse.jdt.annotation.Nullable;
  25 import org.junit.Before;
  26 import org.junit.Test;
  27 import org.opendaylight.yangtools.yang.common.QName;
  28 import org.opendaylight.yangtools.yang.common.QNameModule;
  29 import org.opendaylight.yangtools.yang.common.Revision;
  30 import org.opendaylight.yangtools.yang.common.XMLNamespace;
  31 import org.opendaylight.yangtools.yang.model.api.AnyxmlSchemaNode;
  32 import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
  33 import org.opendaylight.yangtools.yang.model.api.CaseSchemaNode;
  34 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
  35 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  36 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
  37 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
  38 import org.opendaylight.yangtools.yang.model.api.DerivableSchemaNode;
  39 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  40 import org.opendaylight.yangtools.yang.model.api.ElementCountConstraint;
  41 import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
  42 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
  43 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
  44 import org.opendaylight.yangtools.yang.model.api.Module;
  45 import org.opendaylight.yangtools.yang.model.api.MustDefinition;
  46 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
  47 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  48 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
  49 import org.opendaylight.yangtools.yang.model.api.UsesNode;
  50 import org.opendaylight.yangtools.yang.model.api.stmt.RefineEffectiveStatement;
  51 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Descendant;
  52 import org.opendaylight.yangtools.yang.model.api.stmt.UnrecognizedStatement;
  53
  54 public class GroupingTest {
  55     private EffectiveModelContext ctx;
  56     private Module foo;
  57     private Module baz;
  58
  59     @Before
  60     public void init() throws Exception {
  61         ctx = TestUtils.parseYangSources("/model");
  62         foo = TestUtils.findModule(ctx, "foo").get();
  63         baz = TestUtils.findModule(ctx, "baz").get();
  64         assertEquals(3, ctx.getModules().size());
  65     }
  66
  67     @Test
  68     public void testRefine() {
  69         final ContainerSchemaNode peer = (ContainerSchemaNode) foo.getDataChildByName(QName.create(
  70                 foo.getQNameModule(), "peer"));
  71         final ContainerSchemaNode destination = (ContainerSchemaNode) peer.getDataChildByName(QName.create(
  72                 foo.getQNameModule(), "destination"));
  73
  74         final Collection<? extends UsesNode> usesNodes = destination.getUses();
  75         assertEquals(1, usesNodes.size());
  76         final UsesNode usesNode = usesNodes.iterator().next();
  77         final Map<Descendant, SchemaNode> refines = usesNode.getRefines();
  78         assertEquals(4, refines.size());
  79
  80         LeafSchemaNode refineLeaf = null;
  81         ContainerSchemaNode refineContainer = null;
  82         ListSchemaNode refineList = null;
  83         LeafSchemaNode refineInnerLeaf = null;
  84         for (final Map.Entry<Descendant, SchemaNode> entry : refines.entrySet()) {
  85             final SchemaNode value = entry.getValue();
  86             if ("address".equals(value.getQName().getLocalName())) {
  87                 refineLeaf = (LeafSchemaNode) destination.getDataChildByName(value.getQName());
  88             } else if ("port".equals(value.getQName().getLocalName())) {
  89                 refineContainer = (ContainerSchemaNode) destination.getDataChildByName(value.getQName());
  90             } else if ("addresses".equals(value.getQName().getLocalName())) {
  91                 refineList = (ListSchemaNode) destination.getDataChildByName(value.getQName());
  92             }
  93         }
  94
  95         assertNotNull(refineList);
  96         for (final Map.Entry<Descendant, SchemaNode> entry : refines.entrySet()) {
  97             final SchemaNode value = entry.getValue();
  98             if ("id".equals(value.getQName().getLocalName())) {
  99                 refineInnerLeaf = (LeafSchemaNode) refineList.getDataChildByName(value.getQName());
 100             }
 101         }
 102
 103         // leaf address
 104         assertNotNull(refineLeaf);
 105         assertEquals(Optional.of("IP address of target node"), refineLeaf.getDescription());
 106         assertEquals(Optional.of("address reference added by refine"), refineLeaf.getReference());
 107         assertEquals(Optional.of(Boolean.FALSE), refineLeaf.effectiveConfig());
 108         assertFalse(refineLeaf.isMandatory());
 109         final Collection<? extends MustDefinition> leafMustConstraints = refineLeaf.getMustConstraints();
 110         assertEquals(1, leafMustConstraints.size());
 111         final MustDefinition leafMust = leafMustConstraints.iterator().next();
 112         assertEquals("ifType != 'ethernet' or (ifType = 'ethernet' and ifMTU = 1500)", leafMust.getXpath().toString());
 113         assertEquals(0, refineLeaf.getUnknownSchemaNodes().size());
 114         assertEquals(1, usesNode.asEffectiveStatement()
 115             .findFirstEffectiveSubstatement(RefineEffectiveStatement.class).orElseThrow().getDeclared()
 116             .declaredSubstatements(UnrecognizedStatement.class).size());
 117
 118         // container port
 119         assertNotNull(refineContainer);
 120         final Collection<? extends MustDefinition> mustConstraints = refineContainer.getMustConstraints();
 121         assertTrue(mustConstraints.isEmpty());
 122         assertEquals(Optional.of("description of port defined by refine"), refineContainer.getDescription());
 123         assertEquals(Optional.of("port reference added by refine"), refineContainer.getReference());
 124         assertEquals(Optional.of(Boolean.FALSE), refineContainer.effectiveConfig());
 125         assertTrue(refineContainer.isPresenceContainer());
 126
 127         // list addresses
 128         assertEquals(Optional.of("description of addresses defined by refine"), refineList.getDescription());
 129         assertEquals(Optional.of("addresses reference added by refine"), refineList.getReference());
 130         assertEquals(Optional.of(Boolean.FALSE), refineList.effectiveConfig());
 131
 132         final ElementCountConstraint constraint = refineList.getElementCountConstraint().get();
 133         assertEquals((Object) 2, constraint.getMinElements());
 134         assertNull(constraint.getMaxElements());
 135
 136         // leaf id
 137         assertNotNull(refineInnerLeaf);
 138         assertEquals(Optional.of("id of address"), refineInnerLeaf.getDescription());
 139     }
 140
 141     @Test
 142     public void testGrouping() {
 143         final Collection<? extends GroupingDefinition> groupings = baz.getGroupings();
 144         assertEquals(1, groupings.size());
 145         final GroupingDefinition grouping = groupings.iterator().next();
 146         final Collection<? extends DataSchemaNode> children = grouping.getChildNodes();
 147         assertEquals(5, children.size());
 148     }
 149
 150     @Test
 151     public void testUses() {
 152         // suffix _u = added by uses
 153         // suffix _g = defined in grouping
 154
 155
 156         // get grouping
 157         final Collection<? extends GroupingDefinition> groupings = baz.getGroupings();
 158         assertEquals(1, groupings.size());
 159         final GroupingDefinition grouping = groupings.iterator().next();
 160
 161         // get node containing uses
 162         final ContainerSchemaNode peer = (ContainerSchemaNode) foo.getDataChildByName(QName.create(
 163                 foo.getQNameModule(), "peer"));
 164         final ContainerSchemaNode destination = (ContainerSchemaNode) peer.getDataChildByName(QName.create(
 165                 foo.getQNameModule(), "destination"));
 166
 167         // check uses
 168         final Collection<? extends UsesNode> uses = destination.getUses();
 169         assertEquals(1, uses.size());
 170
 171         // check uses process
 172         final AnyxmlSchemaNode data_u = (AnyxmlSchemaNode) destination.getDataChildByName(QName.create(
 173                 foo.getQNameModule(), "data"));
 174         assertNotNull(data_u);
 175         assertTrue(data_u.isAddedByUses());
 176
 177         final AnyxmlSchemaNode data_g = (AnyxmlSchemaNode) grouping.getDataChildByName(QName.create(
 178                 baz.getQNameModule(), "data"));
 179         assertNotNull(data_g);
 180         assertFalse(data_g.isAddedByUses());
 181         assertFalse(data_u.equals(data_g));
 182         assertEquals(data_g, extractOriginal(data_u));
 183
 184         final ChoiceSchemaNode how_u = (ChoiceSchemaNode) destination.getDataChildByName(QName.create(
 185                 foo.getQNameModule(), "how"));
 186         assertNotNull(how_u);
 187         assertIsAddedByUses(how_u, true);
 188         assertEquals(2, how_u.getCases().size());
 189
 190         final ChoiceSchemaNode how_g = (ChoiceSchemaNode) grouping.getDataChildByName(QName.create(
 191                 baz.getQNameModule(), "how"));
 192         assertNotNull(how_g);
 193         assertIsAddedByUses(how_g, false);
 194         assertEquals(2, how_g.getCases().size());
 195         assertFalse(how_u.equals(how_g));
 196         assertEquals(how_g, extractOriginal(how_u));
 197
 198         final LeafSchemaNode address_u = (LeafSchemaNode) destination.getDataChildByName(QName.create(
 199                 foo.getQNameModule(), "address"));
 200         assertNotNull(address_u);
 201         assertEquals(Optional.of("1.2.3.4"), address_u.getType().getDefaultValue());
 202         assertEquals(Optional.of("IP address of target node"), address_u.getDescription());
 203         assertEquals(Optional.of("address reference added by refine"), address_u.getReference());
 204         assertEquals(Optional.of(Boolean.FALSE), address_u.effectiveConfig());
 205         assertTrue(address_u.isAddedByUses());
 206         assertFalse(address_u.isMandatory());
 207
 208         final LeafSchemaNode address_g = (LeafSchemaNode) grouping.getDataChildByName(QName.create(
 209                 baz.getQNameModule(), "address"));
 210         assertNotNull(address_g);
 211         assertFalse(address_g.isAddedByUses());
 212         assertEquals(Optional.empty(), address_g.getType().getDefaultValue());
 213         assertEquals(Optional.of("Target IP address"), address_g.getDescription());
 214         assertFalse(address_g.getReference().isPresent());
 215         assertEquals(Optional.empty(), address_g.effectiveConfig());
 216         assertFalse(address_u.equals(address_g));
 217         assertTrue(address_g.isMandatory());
 218         assertEquals(address_g, extractOriginal(address_u));
 219
 220         final ContainerSchemaNode port_u = (ContainerSchemaNode) destination.getDataChildByName(QName.create(
 221                 foo.getQNameModule(), "port"));
 222         assertNotNull(port_u);
 223         assertIsAddedByUses(port_u, true);
 224
 225         final ContainerSchemaNode port_g = (ContainerSchemaNode) grouping.getDataChildByName(QName.create(
 226                 baz.getQNameModule(), "port"));
 227         assertNotNull(port_g);
 228         assertIsAddedByUses(port_g, false);
 229         assertFalse(port_u.equals(port_g));
 230         assertEquals(port_g, extractOriginal(port_u));
 231
 232         final ListSchemaNode addresses_u = (ListSchemaNode) destination.getDataChildByName(QName.create(
 233                 foo.getQNameModule(), "addresses"));
 234         assertNotNull(addresses_u);
 235         assertIsAddedByUses(addresses_u, true);
 236
 237         final ListSchemaNode addresses_g = (ListSchemaNode) grouping.getDataChildByName(QName.create(
 238                 baz.getQNameModule(), "addresses"));
 239         assertNotNull(addresses_g);
 240         assertIsAddedByUses(addresses_g, false);
 241         assertFalse(addresses_u.equals(addresses_g));
 242         assertEquals(addresses_g, extractOriginal(addresses_u));
 243
 244         // grouping defined by 'uses'
 245         final Collection<? extends GroupingDefinition> groupings_u = destination.getGroupings();
 246         assertEquals(0, groupings_u.size());
 247
 248         // grouping defined in 'grouping' node
 249         final Collection<? extends GroupingDefinition> groupings_g = grouping.getGroupings();
 250         assertEquals(1, groupings_g.size());
 251         final GroupingDefinition grouping_g = groupings_g.iterator().next();
 252         assertIsAddedByUses(grouping_g, false);
 253
 254         assertEquals(0, destination.getUnknownSchemaNodes().size());
 255         assertEquals(1,
 256             grouping.asEffectiveStatement().getDeclared().declaredSubstatements(UnrecognizedStatement.class).size());
 257     }
 258
 259     @Test
 260     public void testUsesUnderModule() {
 261         // suffix _u = added by uses
 262         // suffix _g = defined in grouping
 263
 264         // get grouping
 265         final Collection<? extends GroupingDefinition> groupings = baz.getGroupings();
 266         assertEquals(1, groupings.size());
 267         final GroupingDefinition grouping = groupings.iterator().next();
 268
 269         // check uses
 270         final Collection<? extends UsesNode> uses = foo.getUses();
 271         assertEquals(1, uses.size());
 272
 273         // check uses process
 274         final AnyxmlSchemaNode data_u = (AnyxmlSchemaNode) foo.getDataChildByName(QName.create(foo.getQNameModule(),
 275                 "data"));
 276         assertNotNull(data_u);
 277         assertTrue(data_u.isAddedByUses());
 278
 279         final AnyxmlSchemaNode data_g = (AnyxmlSchemaNode) grouping.getDataChildByName(QName.create(
 280             baz.getQNameModule(), "data"));
 281         assertNotNull(data_g);
 282         assertFalse(data_g.isAddedByUses());
 283         assertFalse(data_u.equals(data_g));
 284         assertEquals(data_g, extractOriginal(data_u));
 285
 286         final ChoiceSchemaNode how_u = (ChoiceSchemaNode) foo.getDataChildByName(QName.create(foo.getQNameModule(),
 287                 "how"));
 288         assertNotNull(how_u);
 289         assertIsAddedByUses(how_u, true);
 290         assertFalse(how_u.isAugmenting());
 291         final Collection<? extends CaseSchemaNode> cases_u = how_u.getCases();
 292         assertEquals(2, cases_u.size());
 293         final CaseSchemaNode interval = how_u.findCaseNodes("interval").iterator().next();
 294         assertFalse(interval.isAugmenting());
 295         final LeafSchemaNode name = (LeafSchemaNode) interval.getDataChildByName(QName.create(foo.getQNameModule(),
 296                 "name"));
 297         assertTrue(name.isAugmenting());
 298         final LeafSchemaNode intervalLeaf = (LeafSchemaNode) interval.getDataChildByName(QName.create(
 299                 foo.getQNameModule(), "interval"));
 300         assertFalse(intervalLeaf.isAugmenting());
 301
 302         final ChoiceSchemaNode how_g = (ChoiceSchemaNode) grouping.getDataChildByName(QName.create(
 303                 baz.getQNameModule(), "how"));
 304         assertNotNull(how_g);
 305         assertIsAddedByUses(how_g, false);
 306         assertFalse(how_u.equals(how_g));
 307         assertEquals(how_g, extractOriginal(how_u));
 308
 309         final LeafSchemaNode address_u = (LeafSchemaNode) foo.getDataChildByName(QName.create(foo.getQNameModule(),
 310                 "address"));
 311         assertNotNull(address_u);
 312         assertEquals(Optional.empty(), address_u.getType().getDefaultValue());
 313         assertEquals(Optional.of("Target IP address"), address_u.getDescription());
 314         assertFalse(address_u.getReference().isPresent());
 315         assertEquals(Optional.empty(), address_u.effectiveConfig());
 316         assertTrue(address_u.isAddedByUses());
 317
 318         final LeafSchemaNode address_g = (LeafSchemaNode) grouping.getDataChildByName(QName.create(
 319                 baz.getQNameModule(), "address"));
 320         assertNotNull(address_g);
 321         assertFalse(address_g.isAddedByUses());
 322         assertEquals(Optional.empty(), address_g.getType().getDefaultValue());
 323         assertEquals(Optional.of("Target IP address"), address_g.getDescription());
 324         assertFalse(address_g.getReference().isPresent());
 325         assertEquals(Optional.empty(), address_g.effectiveConfig());
 326         assertFalse(address_u.equals(address_g));
 327         assertEquals(address_g, extractOriginal(address_u));
 328
 329         final ContainerSchemaNode port_u = (ContainerSchemaNode) foo.getDataChildByName(QName.create(
 330                 foo.getQNameModule(), "port"));
 331         assertNotNull(port_u);
 332         assertIsAddedByUses(port_u, true);
 333
 334         final ContainerSchemaNode port_g = (ContainerSchemaNode) grouping.getDataChildByName(QName.create(
 335                 baz.getQNameModule(), "port"));
 336         assertNotNull(port_g);
 337         assertIsAddedByUses(port_g, false);
 338         assertFalse(port_u.equals(port_g));
 339         assertEquals(port_g, extractOriginal(port_u));
 340
 341         final ListSchemaNode addresses_u = (ListSchemaNode) foo.getDataChildByName(QName.create(foo.getQNameModule(),
 342                 "addresses"));
 343         assertNotNull(addresses_u);
 344         assertIsAddedByUses(addresses_u, true);
 345
 346         final ListSchemaNode addresses_g = (ListSchemaNode) grouping.getDataChildByName(QName.create(
 347                 baz.getQNameModule(), "addresses"));
 348         assertNotNull(addresses_g);
 349         assertIsAddedByUses(addresses_g, false);
 350         assertFalse(addresses_u.equals(addresses_g));
 351         assertEquals(addresses_g, extractOriginal(addresses_u));
 352
 353         // grouping defined by 'uses'
 354         final Collection<? extends GroupingDefinition> groupings_u = foo.getGroupings();
 355         assertEquals(0, groupings_u.size());
 356
 357         // grouping defined in 'grouping' node
 358         final Collection<? extends GroupingDefinition> groupings_g = grouping.getGroupings();
 359         assertEquals(1, groupings_g.size());
 360         final GroupingDefinition grouping_g = groupings_g.iterator().next();
 361         assertIsAddedByUses(grouping_g, false);
 362
 363         assertEquals(0, grouping.getUnknownSchemaNodes().size());
 364         assertEquals(1, grouping.asEffectiveStatement().getDeclared().declaredSubstatements(UnrecognizedStatement.class)
 365             .size());
 366
 367         final UsesNode un = uses.iterator().next();
 368         final Collection<? extends AugmentationSchemaNode> usesAugments = un.getAugmentations();
 369         assertEquals(1, usesAugments.size());
 370         final AugmentationSchemaNode augment = usesAugments.iterator().next();
 371         assertEquals(Optional.of("inner augment"), augment.getDescription());
 372         final Collection<? extends DataSchemaNode> children = augment.getChildNodes();
 373         assertEquals(1, children.size());
 374         final DataSchemaNode leaf = children.iterator().next();
 375         assertTrue(leaf instanceof LeafSchemaNode);
 376         assertEquals("name", leaf.getQName().getLocalName());
 377     }
 378
 379     @Test
 380     public void testCascadeUses() throws Exception {
 381         ctx = TestUtils.parseYangSource("/grouping-test/cascade-uses.yang");
 382         assertEquals(1, ctx.getModules().size());
 383
 384         final Module testModule = TestUtils.findModule(ctx, "cascade-uses").get();
 385         final QNameModule namespace = testModule.getQNameModule();
 386         final Collection<? extends GroupingDefinition> groupings = testModule.getGroupings();
 387
 388         GroupingDefinition gu = null;
 389         GroupingDefinition gv = null;
 390         GroupingDefinition gx = null;
 391         GroupingDefinition gy = null;
 392         GroupingDefinition gz = null;
 393         GroupingDefinition gzz = null;
 394         for (final GroupingDefinition gd : groupings) {
 395             final String name = gd.getQName().getLocalName();
 396             switch (name) {
 397                 case "grouping-U":
 398                     gu = gd;
 399                     break;
 400                 case "grouping-V":
 401                     gv = gd;
 402                     break;
 403                 case "grouping-X":
 404                     gx = gd;
 405                     break;
 406                 case "grouping-Y":
 407                     gy = gd;
 408                     break;
 409                 case "grouping-Z":
 410                     gz = gd;
 411                     break;
 412                 case "grouping-ZZ":
 413                     gzz = gd;
 414                     break;
 415                 default:
 416                     break;
 417             }
 418         }
 419         assertNotNull(gu);
 420         assertNotNull(gv);
 421         assertNotNull(gx);
 422         assertNotNull(gy);
 423         assertNotNull(gz);
 424         assertNotNull(gzz);
 425
 426         final QNameModule expectedModule = QNameModule.create(XMLNamespace.of("urn:grouping:cascade-uses"),
 427             Revision.of("2013-07-18"));
 428
 429         // grouping-U
 430         Collection<? extends DataSchemaNode> childNodes = gu.getChildNodes();
 431         assertEquals(7, childNodes.size());
 432
 433         final LeafSchemaNode leafGroupingU = (LeafSchemaNode) gu.getDataChildByName(
 434             QName.create(namespace, "leaf-grouping-U"));
 435         assertNotNull(leafGroupingU);
 436         assertFalse(leafGroupingU.isAddedByUses());
 437         assertNull(extractOriginal(leafGroupingU));
 438
 439         for (final DataSchemaNode childNode : childNodes) {
 440             if (!childNode.getQName().equals(leafGroupingU.getQName())) {
 441                 assertIsAddedByUses(childNode, true);
 442             }
 443         }
 444
 445         // grouping-V
 446         childNodes = gv.getChildNodes();
 447         assertEquals(4, childNodes.size());
 448         LeafSchemaNode leafGroupingV = null;
 449         ContainerSchemaNode containerGroupingV = null;
 450         for (final DataSchemaNode childNode : childNodes) {
 451             if ("leaf-grouping-V".equals(childNode.getQName().getLocalName())) {
 452                 leafGroupingV = (LeafSchemaNode) childNode;
 453             } else if ("container-grouping-V".equals(childNode.getQName().getLocalName())) {
 454                 containerGroupingV = (ContainerSchemaNode) childNode;
 455             } else {
 456                 assertIsAddedByUses(childNode, true);
 457             }
 458         }
 459         assertNotNull(leafGroupingV);
 460         assertFalse(leafGroupingV.isAddedByUses());
 461
 462         // grouping-V/container-grouping-V
 463         assertNotNull(containerGroupingV);
 464         assertFalse(containerGroupingV.isAddedByUses());
 465         SchemaPath expectedPath = createPath(true, expectedModule, "grouping-V", "container-grouping-V");
 466         assertPathEquals(expectedPath, containerGroupingV);
 467         childNodes = containerGroupingV.getChildNodes();
 468         assertEquals(2, childNodes.size());
 469         for (final DataSchemaNode childNode : childNodes) {
 470             assertIsAddedByUses(childNode, true);
 471         }
 472
 473         // grouping-V/container-grouping-V/leaf-grouping-X
 474         final LeafSchemaNode leafXinContainerV = (LeafSchemaNode) containerGroupingV.getDataChildByName(
 475             QName.create(namespace, "leaf-grouping-X"));
 476         expectedPath = createPath(true, expectedModule, "grouping-V", "container-grouping-V",
 477             "leaf-grouping-X");
 478         assertPathEquals(expectedPath, leafXinContainerV);
 479         // grouping-V/container-grouping-V/leaf-grouping-Y
 480         final LeafSchemaNode leafYinContainerV = (LeafSchemaNode) containerGroupingV.getDataChildByName(
 481             QName.create(namespace, "leaf-grouping-Y"));
 482         expectedPath = createPath(true, expectedModule, "grouping-V", "container-grouping-V",
 483             "leaf-grouping-Y");
 484         assertPathEquals(expectedPath, leafYinContainerV);
 485
 486         // grouping-X
 487         childNodes = gx.getChildNodes();
 488         assertEquals(2, childNodes.size());
 489
 490         // grouping-X/leaf-grouping-X
 491         final LeafSchemaNode leafXinGX = (LeafSchemaNode) gx.getDataChildByName(
 492             QName.create(namespace, "leaf-grouping-X"));
 493         assertFalse(leafXinGX.isAddedByUses());
 494         expectedPath = createPath(true, expectedModule, "grouping-X", "leaf-grouping-X");
 495         assertPathEquals(expectedPath, leafXinGX);
 496
 497         // grouping-X/leaf-grouping-Y
 498         final LeafSchemaNode leafYinGX = (LeafSchemaNode) gx.getDataChildByName(
 499             QName.create(namespace, "leaf-grouping-Y"));
 500         assertTrue(leafYinGX.isAddedByUses());
 501         expectedPath = createPath(true, expectedModule, "grouping-X", "leaf-grouping-Y");
 502         assertPathEquals(expectedPath, leafYinGX);
 503
 504         // grouping-Y
 505         childNodes = gy.getChildNodes();
 506         assertEquals(1, childNodes.size());
 507
 508         // grouping-Y/leaf-grouping-Y
 509         final LeafSchemaNode leafYinGY = (LeafSchemaNode) gy.getDataChildByName(
 510             QName.create(namespace, "leaf-grouping-Y"));
 511         assertFalse(leafYinGY.isAddedByUses());
 512         expectedPath = createPath(true, expectedModule, "grouping-Y", "leaf-grouping-Y");
 513         assertPathEquals(expectedPath, leafYinGY);
 514
 515         // grouping-Z
 516         childNodes = gz.getChildNodes();
 517         assertEquals(1, childNodes.size());
 518
 519         // grouping-Z/leaf-grouping-Z
 520         final LeafSchemaNode leafZinGZ = (LeafSchemaNode) gz.getDataChildByName(
 521             QName.create(namespace, "leaf-grouping-Z"));
 522         assertFalse(leafZinGZ.isAddedByUses());
 523         expectedPath = createPath(true, expectedModule, "grouping-Z", "leaf-grouping-Z");
 524         assertPathEquals(expectedPath, leafZinGZ);
 525
 526         // grouping-ZZ
 527         childNodes = gzz.getChildNodes();
 528         assertEquals(1, childNodes.size());
 529
 530         // grouping-ZZ/leaf-grouping-ZZ
 531         final LeafSchemaNode leafZZinGZZ = (LeafSchemaNode) gzz.getDataChildByName(
 532             QName.create(namespace, "leaf-grouping-ZZ"));
 533         assertFalse(leafZZinGZZ.isAddedByUses());
 534         expectedPath = createPath(true, expectedModule, "grouping-ZZ", "leaf-grouping-ZZ");
 535         assertPathEquals(expectedPath, leafZZinGZZ);
 536
 537         // TEST getOriginal from grouping-U
 538         assertEquals(gv.getDataChildByName(QName.create(namespace, "leaf-grouping-V")),
 539             extractOriginal(gu.getDataChildByName(QName.create(namespace, "leaf-grouping-V"))));
 540         containerGroupingV = (ContainerSchemaNode) gu.getDataChildByName(
 541             QName.create(namespace, "container-grouping-V"));
 542         assertEquals(gv.getDataChildByName(QName.create(namespace, "container-grouping-V")),
 543             extractOriginal(containerGroupingV));
 544         assertEquals(gx.getDataChildByName(QName.create(namespace, "leaf-grouping-X")),
 545             extractOriginal(containerGroupingV.getDataChildByName(QName.create(namespace, "leaf-grouping-X"))));
 546         assertEquals(gy.getDataChildByName(QName.create(namespace, "leaf-grouping-Y")),
 547             extractOriginal(containerGroupingV.getDataChildByName(QName.create(namespace, "leaf-grouping-Y"))));
 548
 549         assertEquals(gz.getDataChildByName(QName.create(namespace, "leaf-grouping-Z")),
 550             extractOriginal(gu.getDataChildByName(QName.create(namespace, "leaf-grouping-Z"))));
 551         assertEquals(gzz.getDataChildByName(QName.create(namespace, "leaf-grouping-ZZ")),
 552             extractOriginal(gu.getDataChildByName(QName.create(namespace, "leaf-grouping-ZZ"))));
 553
 554         // TEST getOriginal from grouping-V
 555         assertEquals(gz.getDataChildByName(QName.create(namespace, "leaf-grouping-Z")),
 556             extractOriginal(gv.getDataChildByName(QName.create(namespace, "leaf-grouping-Z"))));
 557         assertEquals(gzz.getDataChildByName(QName.create(namespace, "leaf-grouping-ZZ")),
 558             extractOriginal(gv.getDataChildByName(QName.create(namespace, "leaf-grouping-ZZ"))));
 559
 560         // TEST getOriginal from grouping-X
 561         assertEquals(gy.getDataChildByName(QName.create(namespace, "leaf-grouping-Y")),
 562             extractOriginal(gx.getDataChildByName(QName.create(namespace, "leaf-grouping-Y"))));
 563     }
 564
 565     @Test
 566     public void testAddedByUsesLeafTypeQName() throws Exception {
 567         final EffectiveModelContext loadModules = TestUtils.parseYangSources("/added-by-uses-leaf-test");
 568         assertEquals(2, loadModules.getModules().size());
 569         foo = TestUtils.findModule(loadModules, "foo").get();
 570         final Module imp = TestUtils.findModule(loadModules, "import-module").get();
 571
 572         final LeafSchemaNode leaf = (LeafSchemaNode)
 573             ((ContainerSchemaNode) foo.getDataChildByName(QName.create(foo.getQNameModule(), "my-container")))
 574             .getDataChildByName(QName.create(foo.getQNameModule(), "my-leaf"));
 575
 576         TypeDefinition<?> impType = null;
 577         for (final TypeDefinition<?> typeDefinition : imp.getTypeDefinitions()) {
 578             if (typeDefinition.getQName().getLocalName().equals("imp-type")) {
 579                 impType = typeDefinition;
 580                 break;
 581             }
 582         }
 583
 584         assertNotNull(impType);
 585         assertEquals(leaf.getType().getQName(), impType.getQName());
 586     }
 587
 588     private static SchemaPath createPath(final boolean absolute, final QNameModule module, final String... names) {
 589         return SchemaPath.create(
 590             Arrays.stream(names).map(name -> QName.create(module, name)).collect(Collectors.toList()), true);
 591     }
 592
 593     private static void assertIsAddedByUses(final GroupingDefinition node, final boolean expected) {
 594         assertEquals(expected, node.isAddedByUses());
 595         for (DataSchemaNode child : node.getChildNodes()) {
 596             assertIsAddedByUses(child, expected);
 597         }
 598     }
 599
 600     /**
 601      * Check if node has addedByUses flag set to expected value. In case this is
 602      * DataNodeContainer/ChoiceNode, check its child nodes/case nodes too.
 603      *
 604      * @param node node to check
 605      * @param expected expected value
 606      */
 607     private static void assertIsAddedByUses(final DataSchemaNode node, final boolean expected) {
 608         assertEquals(expected, node.isAddedByUses());
 609         if (node instanceof DataNodeContainer) {
 610             for (DataSchemaNode child : ((DataNodeContainer) node)
 611                     .getChildNodes()) {
 612                 assertIsAddedByUses(child, expected);
 613             }
 614         } else if (node instanceof ChoiceSchemaNode) {
 615             for (CaseSchemaNode caseNode : ((ChoiceSchemaNode) node).getCases()) {
 616                 assertIsAddedByUses(caseNode, expected);
 617             }
 618         }
 619     }
 620
 621     private static @Nullable SchemaNode extractOriginal(final SchemaNode node) {
 622         assertThat(node, instanceOf(DerivableSchemaNode.class));
 623         return ((DerivableSchemaNode) node).getOriginal().orElse(null);
 624     }
 625 }