yang/yang-data-codec-gson/src/test/java/org/opendaylight/yangtools/yang/data/codec/gson/JsonStreamToNormalizedNodeTest.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.data.codec.gson;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertNotNull;
  12 import static org.junit.Assert.assertTrue;
  13 import static org.junit.Assert.fail;
  14 import static org.opendaylight.yangtools.yang.data.codec.gson.TestUtils.loadTextFile;
  15 import static org.opendaylight.yangtools.yang.data.impl.schema.Builders.augmentationBuilder;
  16 import static org.opendaylight.yangtools.yang.data.impl.schema.Builders.choiceBuilder;
  17 import static org.opendaylight.yangtools.yang.data.impl.schema.Builders.containerBuilder;
  18 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.leafNode;
  19
  20 import com.google.gson.stream.JsonReader;
  21 import java.io.IOException;
  22 import java.io.StringReader;
  23 import java.net.URISyntaxException;
  24 import java.util.Collections;
  25 import org.junit.BeforeClass;
  26 import org.junit.Test;
  27 import org.opendaylight.yangtools.yang.common.Empty;
  28 import org.opendaylight.yangtools.yang.common.QName;
  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.schema.ContainerNode;
  32 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  33 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
  34 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
  35 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
  36 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  37 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
  38 import org.opendaylight.yangtools.yang.test.util.YangParserTestUtils;
  39
  40 /**
  41  * Each test tests whether json input is correctly transformed to normalized node structure.
  42  */
  43 public class JsonStreamToNormalizedNodeTest {
  44
  45     private static final QName CONT_1 = QName.create("ns:complex:json", "2014-08-11", "cont1");
  46     private static final QName EMPTY_LEAF = QName.create(CONT_1,"empty");
  47     private static SchemaContext schemaContext;
  48
  49     @BeforeClass
  50     public static void initialization() {
  51         schemaContext = YangParserTestUtils.parseYangResourceDirectory("/complexjson/yang");
  52     }
  53
  54     @Test
  55     public void leafNodeInContainer() throws IOException, URISyntaxException {
  56         final String inputJson = loadTextFile("/complexjson/leaf-node-in-container.json");
  57         verifyTransformationToNormalizedNode(inputJson, TestingNormalizedNodeStructuresCreator.leafNodeInContainer());
  58     }
  59
  60     @Test
  61     public void leafNodeViaAugmentationInContainer() throws IOException, URISyntaxException {
  62         final String inputJson = loadTextFile("/complexjson/leaf-node-via-augmentation-in-container.json");
  63         verifyTransformationToNormalizedNode(inputJson,
  64                 TestingNormalizedNodeStructuresCreator.leafNodeViaAugmentationInContainer());
  65     }
  66
  67     @Test
  68     public void leafListNodeInContainer() throws IOException, URISyntaxException {
  69         final String inputJson = loadTextFile("/complexjson/leaflist-node-in-container.json");
  70         verifyTransformationToNormalizedNode(inputJson,
  71                 TestingNormalizedNodeStructuresCreator.leafListNodeInContainer());
  72     }
  73
  74     @Test
  75     public void keyedListNodeInContainer() throws IOException, URISyntaxException {
  76         final String inputJson = loadTextFile("/complexjson/keyed-list-node-in-container.json");
  77         verifyTransformationToNormalizedNode(inputJson,
  78                 TestingNormalizedNodeStructuresCreator.keyedListNodeInContainer());
  79     }
  80
  81     @Test
  82     public void choiceNodeInContainer() throws IOException, URISyntaxException {
  83         final String inputJson = loadTextFile("/complexjson/choice-node-in-container.json");
  84         verifyTransformationToNormalizedNode(inputJson, TestingNormalizedNodeStructuresCreator.choiceNodeInContainer());
  85     }
  86
  87     /**
  88      * Test of translating internal augmentations to normalized nodes structure.
  89      *
  90      * <p>
  91      * 2 nodes are added via internal augmentation A, 1 node via internal augmentation B and one node is originally
  92      * member of case.
  93      */
  94     @Test
  95     public void caseNodeAugmentationInChoiceInContainer() throws IOException, URISyntaxException {
  96         final String inputJson = loadTextFile("/complexjson/case-node-augmentation-in-choice-in-container.json");
  97         verifyTransformationToNormalizedNode(inputJson,
  98                 TestingNormalizedNodeStructuresCreator.caseNodeAugmentationInChoiceInContainer());
  99     }
 100
 101     /**
 102      * also test using of namesakes (equal local names with different.
 103      */
 104     @Test
 105     public void caseNodeExternalAugmentationInChoiceInContainer() throws IOException, URISyntaxException {
 106         final String inputJson =
 107                 loadTextFile("/complexjson/case-node-external-augmentation-in-choice-in-container.json");
 108         verifyTransformationToNormalizedNode(inputJson,
 109                 TestingNormalizedNodeStructuresCreator.caseNodeExternalAugmentationInChoiceInContainer());
 110     }
 111
 112     /**
 113      * augmentation of choice - adding new case.
 114      */
 115     @Test
 116     public void choiceNodeAugmentationInContainer() throws IOException, URISyntaxException {
 117         final String inputJson = loadTextFile("/complexjson/choice-node-augmentation-in-container.json");
 118         verifyTransformationToNormalizedNode(inputJson,
 119                 TestingNormalizedNodeStructuresCreator.choiceNodeAugmentationInContainer());
 120     }
 121
 122     @Test
 123     public void unkeyedNodeInContainer() throws IOException, URISyntaxException {
 124         final String inputJson = loadTextFile("/complexjson/unkeyed-node-in-container.json");
 125         verifyTransformationToNormalizedNode(inputJson,
 126             TestingNormalizedNodeStructuresCreator.unkeyedNodeInContainer());
 127     }
 128
 129     /**
 130      * Top level JSON element contains no information about module name.
 131      *
 132      * <p>
 133      * It should be possible to find out potential module name from available schema context.
 134      */
 135     @Test
 136     public void missingModuleInfoInTopLevelElement() throws IOException, URISyntaxException {
 137         final String inputJson = loadTextFile("/complexjson/missing-module-in-top-level.json");
 138         verifyTransformationToNormalizedNode(inputJson, TestingNormalizedNodeStructuresCreator.topLevelContainer());
 139     }
 140
 141     /**
 142      * Exception expected.
 143      *
 144      * <p>
 145      * It tests case when several elements with the same name and various namespaces exists and are in JSON specified
 146      * without module name prefix.
 147      */
 148     @Test
 149     public void leafNamesakes() throws IOException, URISyntaxException {
 150         final String inputJson = loadTextFile("/complexjson/namesakes.json");
 151         try {
 152             //second parameter isn't necessary because error will be raised before it is used.
 153             verifyTransformationToNormalizedNode(inputJson, null);
 154             fail("Expected exception not raised");
 155         } catch (final IllegalStateException e) {
 156             final String errorMessage = e.getMessage();
 157             assertTrue(errorMessage.contains("Choose suitable module name for element lf11-namesake:"));
 158             assertTrue(errorMessage.contains("complexjson-augmentation"));
 159             assertTrue(errorMessage.contains("complexjson-augmentation-namesake"));
 160         }
 161     }
 162
 163     @Test
 164     public void emptyTypeTest() throws IOException, URISyntaxException {
 165         final String inputJson = loadTextFile("/complexjson/type-empty.json");
 166         final ContainerNode awaitedStructure = containerBuilder()
 167                 .withNodeIdentifier(new NodeIdentifier(CONT_1))
 168                 .addChild(leafNode(EMPTY_LEAF, Empty.getInstance()))
 169                 .build();
 170
 171         verifyTransformationToNormalizedNode(inputJson, awaitedStructure);
 172     }
 173
 174     /**
 175      * Exception expected.
 176      *
 177      * <p>
 178      * Json input contains element which doesn't exist in YANG schema
 179      */
 180     @Test
 181     public void parsingNotExistingElement() throws IOException, URISyntaxException {
 182         final String inputJson = loadTextFile("/complexjson/not-existing-element.json");
 183         try {
 184             //second parameter isn't necessary because error will be raised before it is used.
 185             verifyTransformationToNormalizedNode(inputJson, null);
 186         } catch (final IllegalStateException e) {
 187             assertTrue(e.getMessage().contains("Schema node with name dummy-element was not found"));
 188         }
 189     }
 190
 191     @Test
 192     public void listItemWithoutArray() throws IOException, URISyntaxException {
 193         final String inputJson = loadTextFile("/complexjson/keyed-list-restconf-behaviour.json");
 194
 195         final NormalizedNodeResult result = new NormalizedNodeResult();
 196         final NormalizedNodeStreamWriter streamWriter = ImmutableNormalizedNodeStreamWriter.from(result);
 197         final SchemaNode parentNode = schemaContext.getDataChildByName(CONT_1);
 198         final JsonParserStream jsonParser = JsonParserStream.create(streamWriter, schemaContext, parentNode);
 199         jsonParser.parse(new JsonReader(new StringReader(inputJson)));
 200         final NormalizedNode<?, ?> transformedInput = result.getResult();
 201         assertNotNull(transformedInput);
 202     }
 203
 204     @Test
 205     public void listItemWithArray() throws IOException, URISyntaxException {
 206         final String inputJson = loadTextFile("/complexjson/keyed-list-yang-json-behaviour.json");
 207
 208         final NormalizedNodeResult result = new NormalizedNodeResult();
 209         final NormalizedNodeStreamWriter streamWriter = ImmutableNormalizedNodeStreamWriter.from(result);
 210         final SchemaNode parentNode = schemaContext.getDataChildByName(CONT_1);
 211         final JsonParserStream jsonParser = JsonParserStream.create(streamWriter, schemaContext, parentNode);
 212         jsonParser.parse(new JsonReader(new StringReader(inputJson)));
 213         final NormalizedNode<?, ?> transformedInput = result.getResult();
 214         assertNotNull(transformedInput);
 215     }
 216
 217     @Test
 218     public void multipleChoiceAugmentation() throws IOException, URISyntaxException {
 219         final String inputJson = loadTextFile("/complexjson/multiple-choice-augmentation-in-container.json");
 220
 221         final NormalizedNodeResult result = new NormalizedNodeResult();
 222         final NormalizedNodeStreamWriter streamWriter = ImmutableNormalizedNodeStreamWriter.from(result);
 223         final SchemaNode parentNode = schemaContext.getDataChildByName(CONT_1);
 224
 225         final QName augmentChoice1QName = QName.create(parentNode.getQName(), "augment-choice1");
 226         final QName augmentChoice2QName = QName.create(augmentChoice1QName, "augment-choice2");
 227         final QName containerQName = QName.create(augmentChoice1QName, "case11-choice-case-container");
 228         final QName leafQName = QName.create(augmentChoice1QName, "case11-choice-case-leaf");
 229
 230         final AugmentationIdentifier aug1Id = new AugmentationIdentifier(Collections.singleton(augmentChoice1QName));
 231         final AugmentationIdentifier aug2Id = new AugmentationIdentifier(Collections.singleton(augmentChoice2QName));
 232         final NodeIdentifier augmentChoice1Id = new NodeIdentifier(augmentChoice1QName);
 233         final NodeIdentifier augmentChoice2Id = new NodeIdentifier(augmentChoice2QName);
 234         final NodeIdentifier containerId = new NodeIdentifier(containerQName);
 235
 236         final NormalizedNode<?, ?> cont1Normalized =
 237                 containerBuilder().withNodeIdentifier(new NodeIdentifier(parentNode.getQName()))
 238                         .withChild(augmentationBuilder().withNodeIdentifier(aug1Id)
 239                                 .withChild(choiceBuilder().withNodeIdentifier(augmentChoice1Id)
 240                                         .withChild(augmentationBuilder().withNodeIdentifier(aug2Id)
 241                                                 .withChild(choiceBuilder().withNodeIdentifier(augmentChoice2Id)
 242                                                         .withChild(containerBuilder().withNodeIdentifier(containerId)
 243                                                                 .withChild(leafNode(leafQName, "leaf-value"))
 244                                                                 .build())
 245                                                         .build())
 246                                                 .build())
 247                                         .build())
 248                                 .build()).build();
 249
 250         final JsonParserStream jsonParser = JsonParserStream.create(streamWriter, schemaContext);
 251         jsonParser.parse(new JsonReader(new StringReader(inputJson)));
 252         final NormalizedNode<?, ?> transformedInput = result.getResult();
 253         assertNotNull(transformedInput);
 254         assertEquals(cont1Normalized, transformedInput);
 255     }
 256
 257     private static void verifyTransformationToNormalizedNode(final String inputJson,
 258             final NormalizedNode<?, ?> awaitedStructure) {
 259         final NormalizedNodeResult result = new NormalizedNodeResult();
 260         final NormalizedNodeStreamWriter streamWriter = ImmutableNormalizedNodeStreamWriter.from(result);
 261         final JsonParserStream jsonParser = JsonParserStream.create(streamWriter, schemaContext);
 262         jsonParser.parse(new JsonReader(new StringReader(inputJson)));
 263         final NormalizedNode<?, ?> transformedInput = result.getResult();
 264         assertEquals("Transformation of json input to normalized node wasn't successful.", awaitedStructure,
 265                 transformedInput);
 266     }
 267 }