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JsonParserSkipTest.java
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JsonParserSkipTest.java
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/*
* Copyright (c) 2017, 2021 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.eclipse.jsonp.tests;
import java.io.StringReader;
import jakarta.json.Json;
import jakarta.json.stream.JsonParser;
import junit.framework.TestCase;
import static junit.framework.TestCase.assertEquals;
import static junit.framework.TestCase.assertFalse;
import static junit.framework.TestCase.assertTrue;
/**
*
* @author lukas
*/
public class JsonParserSkipTest extends TestCase {
public void testSkipArrayReader() {
try (JsonParser parser = Json.createParser(new StringReader("[[],[[]]]"))) {
testSkipArray(parser);
}
}
public void testSkipArrayStructure() {
try (JsonParser parser = Json.createParserFactory(null).createParser(
Json.createArrayBuilder()
.add(Json.createArrayBuilder())
.add(Json.createArrayBuilder()
.add(Json.createArrayBuilder()))
.build())) {
testSkipArray(parser);
}
}
private static void testSkipArray(JsonParser parser) {
assertEquals(JsonParser.Event.START_ARRAY, parser.next());
parser.skipArray();
assertEquals(false, parser.hasNext());
}
public void testSkipArrayInObjectReader() {
try (JsonParser parser = Json.createParser(new StringReader("{\"array\":[[],[[]]],\"object\":\"value2\"}"))) {
testSkipArrayInObject(parser);
}
}
public void testSkipArrayInObjectStructure() {
try (JsonParser parser = Json.createParserFactory(null).createParser(
Json.createObjectBuilder().add("array", Json.createArrayBuilder()
.add(Json.createArrayBuilder())
.add(Json.createArrayBuilder()
.add(Json.createArrayBuilder()))
).add("object", "value2")
.build())) {
testSkipArrayInObject(parser);
}
}
private static void testSkipArrayInObject(JsonParser parser) {
assertEquals(JsonParser.Event.START_OBJECT, parser.next());
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.START_ARRAY, parser.next());
parser.skipArray();
assertTrue(parser.hasNext());
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.VALUE_STRING, parser.next());
assertEquals(JsonParser.Event.END_OBJECT, parser.next());
assertFalse(parser.hasNext());
}
public void testSkipObjectReader() {
try (JsonParser parser = Json.createParser(new StringReader("{\"array\":[],\"objectToSkip\":{\"huge key\":\"huge value\"},\"simple\":2}"))) {
testSkipObject(parser);
}
}
public void testSkipObjectStructure() {
try (JsonParser parser = Json.createParserFactory(null).createParser(
Json.createObjectBuilder()
.add("array", Json.createArrayBuilder().build())
.add("objectToSkip", Json.createObjectBuilder().add("huge key", "huge value"))
.add("simple", 2)
.build())) {
testSkipObject(parser);
}
}
private static void testSkipObject(JsonParser parser) {
assertEquals(JsonParser.Event.START_OBJECT, parser.next());
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.START_ARRAY, parser.next());
assertEquals(JsonParser.Event.END_ARRAY, parser.next());
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.START_OBJECT, parser.next());
parser.skipObject();
assertEquals(JsonParser.Event.KEY_NAME, parser.next());
assertEquals(JsonParser.Event.VALUE_NUMBER, parser.next());
assertEquals(JsonParser.Event.END_OBJECT, parser.next());
assertEquals(false, parser.hasNext());
}
}