| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.johnzon.core; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import jakarta.json.Json; |
| import jakarta.json.JsonArray; |
| import jakarta.json.JsonArrayBuilder; |
| import jakarta.json.JsonObject; |
| import jakarta.json.JsonWriter; |
| import jakarta.json.JsonWriterFactory; |
| |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| import java.util.HashMap; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class OverflowTest { |
| @Test |
| public void ok() { |
| // normal content size |
| Json.createReaderFactory(new HashMap<String, Object>() {{ |
| put(JsonParserFactoryImpl.MAX_STRING_LENGTH, "10"); |
| put(JsonParserFactoryImpl.BUFFER_LENGTH, "2"); |
| }}).createReader(new StringReader("{\"a\":\"b\",\n\"another\":\"value\"}")).readObject(); |
| |
| // oversized |
| final JsonObject object = Json.createReaderFactory(new HashMap<String, Object>() {{ |
| put(JsonParserFactoryImpl.MAX_STRING_LENGTH, "10"); |
| put(JsonParserFactoryImpl.BUFFER_LENGTH, "2"); |
| }}).createReader(new StringReader("{\"a\":\"b\",\n\"another\":\"value very long\"}")).readObject(); |
| assertEquals("value very long", object.getString("another")); |
| } |
| |
| @Test(expected = ArrayIndexOutOfBoundsException.class) |
| public void ko() { |
| Json.createReaderFactory(new HashMap<String, Object>() {{ |
| put(JsonParserFactoryImpl.MAX_STRING_LENGTH, "10"); |
| put(JsonParserFactoryImpl.BUFFER_LENGTH, "2"); |
| put(JsonParserFactoryImpl.AUTO_ADJUST_STRING_BUFFER, "false"); |
| }}).createReader(new StringReader("{\"another\":\"value too long\"}")).readObject(); |
| } |
| |
| @Test |
| public void testVeryLargeJson() { |
| JsonWriterFactory writerFactory = Json.createWriterFactory(new HashMap<String, Object>() {{ |
| put(JsonParserFactoryImpl.BUFFER_LENGTH, "256"); |
| }}); |
| |
| int itemSize = 50_000; |
| |
| StringWriter sw = new StringWriter(); |
| JsonWriter writer = writerFactory.createWriter(sw); |
| |
| JsonArrayBuilder arrayBuilder = Json.createArrayBuilder(); |
| for (int i = 0; i < itemSize; i++) { |
| arrayBuilder.add("0123456789012345-" + i); |
| } |
| writer.writeArray(arrayBuilder.build()); |
| writer.close(); |
| |
| String json = sw.toString(); |
| System.out.println("Created a JSON of size " + json.length() + " bytes"); |
| |
| // read it back in |
| JsonArray jsonArray = Json.createReader(new StringReader(json)).readArray(); |
| Assert.assertEquals(itemSize, jsonArray.size()); |
| |
| } |
| } |