| /* |
| * 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 |
| * |
| * https://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.avro.util; |
| |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.Matchers.is; |
| import static org.junit.Assert.assertNotEquals; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.nio.charset.StandardCharsets; |
| |
| import org.junit.Test; |
| |
| public class TestUtf8 { |
| @Test |
| public void testByteConstructor() throws Exception { |
| byte[] bs = "Foo".getBytes(StandardCharsets.UTF_8); |
| Utf8 u = new Utf8(bs); |
| assertEquals(bs.length, u.getByteLength()); |
| for (int i = 0; i < bs.length; i++) { |
| assertEquals(bs[i], u.getBytes()[i]); |
| } |
| } |
| |
| @Test |
| public void testArrayReusedWhenLargerThanRequestedSize() { |
| byte[] bs = "55555".getBytes(StandardCharsets.UTF_8); |
| Utf8 u = new Utf8(bs); |
| assertEquals(5, u.getByteLength()); |
| byte[] content = u.getBytes(); |
| u.setByteLength(3); |
| assertEquals(3, u.getByteLength()); |
| assertSame(content, u.getBytes()); |
| u.setByteLength(4); |
| assertEquals(4, u.getByteLength()); |
| assertSame(content, u.getBytes()); |
| } |
| |
| @Test |
| public void testHashCodeReused() { |
| assertEquals(97, new Utf8("a").hashCode()); |
| assertEquals(3904, new Utf8("zz").hashCode()); |
| assertEquals(122, new Utf8("z").hashCode()); |
| assertEquals(99162322, new Utf8("hello").hashCode()); |
| assertEquals(3198781, new Utf8("hell").hashCode()); |
| |
| Utf8 u = new Utf8("a"); |
| assertEquals(97, u.hashCode()); |
| assertEquals(97, u.hashCode()); |
| |
| u.set("a"); |
| assertEquals(97, u.hashCode()); |
| |
| u.setByteLength(1); |
| assertEquals(97, u.hashCode()); |
| u.setByteLength(2); |
| assertNotEquals(97, u.hashCode()); |
| |
| u.set("zz"); |
| assertEquals(3904, u.hashCode()); |
| u.setByteLength(1); |
| assertEquals(122, u.hashCode()); |
| |
| u.set("hello"); |
| assertEquals(99162322, u.hashCode()); |
| u.setByteLength(4); |
| assertEquals(3198781, u.hashCode()); |
| |
| u.set(new Utf8("zz")); |
| assertEquals(3904, u.hashCode()); |
| u.setByteLength(1); |
| assertEquals(122, u.hashCode()); |
| |
| u.set(new Utf8("hello")); |
| assertEquals(99162322, u.hashCode()); |
| u.setByteLength(4); |
| assertEquals(3198781, u.hashCode()); |
| } |
| |
| @Test |
| public void testSerialization() throws IOException, ClassNotFoundException { |
| try (ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| ObjectOutputStream oos = new ObjectOutputStream(bos)) { |
| |
| Utf8 originalEmpty = new Utf8(); |
| Utf8 originalBytes = new Utf8("originalBytes".getBytes(StandardCharsets.UTF_8)); |
| Utf8 originalString = new Utf8("originalString"); |
| |
| oos.writeObject(originalEmpty); |
| oos.writeObject(originalBytes); |
| oos.writeObject(originalString); |
| oos.flush(); |
| |
| try (ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray()); |
| ObjectInputStream ois = new ObjectInputStream(bis)) { |
| assertThat(ois.readObject(), is(originalEmpty)); |
| assertThat(ois.readObject(), is(originalBytes)); |
| assertThat(ois.readObject(), is(originalString)); |
| } |
| } |
| } |
| |
| } |