| /* |
| * 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.kafka.common.header.internals; |
| |
| import org.apache.kafka.common.header.Header; |
| import org.apache.kafka.common.header.Headers; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| public class RecordHeadersTest { |
| |
| @Test |
| public void testAdd() { |
| Headers headers = new RecordHeaders(); |
| headers.add(new RecordHeader("key", "value".getBytes())); |
| |
| Header header = headers.iterator().next(); |
| assertHeader("key", "value", header); |
| |
| headers.add(new RecordHeader("key2", "value2".getBytes())); |
| |
| assertHeader("key2", "value2", headers.lastHeader("key2")); |
| assertEquals(2, getCount(headers)); |
| } |
| |
| @Test |
| public void testRemove() { |
| Headers headers = new RecordHeaders(); |
| headers.add(new RecordHeader("key", "value".getBytes())); |
| |
| assertTrue(headers.iterator().hasNext()); |
| |
| headers.remove("key"); |
| |
| assertFalse(headers.iterator().hasNext()); |
| } |
| |
| @Test |
| public void testAddRemoveInterleaved() { |
| Headers headers = new RecordHeaders(); |
| headers.add(new RecordHeader("key", "value".getBytes())); |
| headers.add(new RecordHeader("key2", "value2".getBytes())); |
| |
| assertTrue(headers.iterator().hasNext()); |
| |
| headers.remove("key"); |
| |
| assertEquals(1, getCount(headers)); |
| |
| headers.add(new RecordHeader("key3", "value3".getBytes())); |
| |
| assertNull(headers.lastHeader("key")); |
| |
| assertHeader("key2", "value2", headers.lastHeader("key2")); |
| |
| assertHeader("key3", "value3", headers.lastHeader("key3")); |
| |
| assertEquals(2, getCount(headers)); |
| |
| headers.remove("key2"); |
| |
| assertNull(headers.lastHeader("key")); |
| |
| assertNull(headers.lastHeader("key2")); |
| |
| assertHeader("key3", "value3", headers.lastHeader("key3")); |
| |
| assertEquals(1, getCount(headers)); |
| |
| headers.add(new RecordHeader("key3", "value4".getBytes())); |
| |
| assertHeader("key3", "value4", headers.lastHeader("key3")); |
| |
| assertEquals(2, getCount(headers)); |
| |
| headers.add(new RecordHeader("key", "valueNew".getBytes())); |
| |
| assertEquals(3, getCount(headers)); |
| |
| |
| assertHeader("key", "valueNew", headers.lastHeader("key")); |
| |
| headers.remove("key3"); |
| |
| assertEquals(1, getCount(headers)); |
| |
| assertNull(headers.lastHeader("key2")); |
| |
| headers.remove("key"); |
| |
| assertFalse(headers.iterator().hasNext()); |
| } |
| |
| @Test |
| public void testLastHeader() { |
| Headers headers = new RecordHeaders(); |
| headers.add(new RecordHeader("key", "value".getBytes())); |
| headers.add(new RecordHeader("key", "value2".getBytes())); |
| headers.add(new RecordHeader("key", "value3".getBytes())); |
| |
| assertHeader("key", "value3", headers.lastHeader("key")); |
| assertEquals(3, getCount(headers)); |
| |
| } |
| |
| @Test |
| public void testReadOnly() throws IOException { |
| RecordHeaders headers = new RecordHeaders(); |
| headers.add(new RecordHeader("key", "value".getBytes())); |
| Iterator<Header> headerIteratorBeforeClose = headers.iterator(); |
| headers.setReadOnly(); |
| try { |
| headers.add(new RecordHeader("key", "value".getBytes())); |
| fail("IllegalStateException expected as headers are closed"); |
| } catch (IllegalStateException ise) { |
| //expected |
| } |
| |
| try { |
| headers.remove("key"); |
| fail("IllegalStateException expected as headers are closed"); |
| } catch (IllegalStateException ise) { |
| //expected |
| } |
| |
| try { |
| Iterator<Header> headerIterator = headers.iterator(); |
| headerIterator.next(); |
| headerIterator.remove(); |
| fail("IllegalStateException expected as headers are closed"); |
| } catch (IllegalStateException ise) { |
| //expected |
| } |
| |
| try { |
| headerIteratorBeforeClose.next(); |
| headerIteratorBeforeClose.remove(); |
| fail("IllegalStateException expected as headers are closed"); |
| } catch (IllegalStateException ise) { |
| //expected |
| } |
| } |
| |
| @Test |
| public void testHeaders() throws IOException { |
| RecordHeaders headers = new RecordHeaders(); |
| headers.add(new RecordHeader("key", "value".getBytes())); |
| headers.add(new RecordHeader("key1", "key1value".getBytes())); |
| headers.add(new RecordHeader("key", "value2".getBytes())); |
| headers.add(new RecordHeader("key2", "key2value".getBytes())); |
| |
| |
| Iterator<Header> keyHeaders = headers.headers("key").iterator(); |
| assertHeader("key", "value", keyHeaders.next()); |
| assertHeader("key", "value2", keyHeaders.next()); |
| assertFalse(keyHeaders.hasNext()); |
| |
| keyHeaders = headers.headers("key1").iterator(); |
| assertHeader("key1", "key1value", keyHeaders.next()); |
| assertFalse(keyHeaders.hasNext()); |
| |
| keyHeaders = headers.headers("key2").iterator(); |
| assertHeader("key2", "key2value", keyHeaders.next()); |
| assertFalse(keyHeaders.hasNext()); |
| |
| } |
| |
| @Test |
| public void testNew() throws IOException { |
| RecordHeaders headers = new RecordHeaders(); |
| headers.add(new RecordHeader("key", "value".getBytes())); |
| headers.setReadOnly(); |
| |
| RecordHeaders newHeaders = new RecordHeaders(headers); |
| newHeaders.add(new RecordHeader("key", "value2".getBytes())); |
| |
| //Ensure existing headers are not modified |
| assertHeader("key", "value", headers.lastHeader("key")); |
| assertEquals(1, getCount(headers)); |
| |
| //Ensure new headers are modified |
| assertHeader("key", "value2", newHeaders.lastHeader("key")); |
| assertEquals(2, getCount(newHeaders)); |
| } |
| |
| @Test(expected = NullPointerException.class) |
| public void shouldThrowNpeWhenAddingNullHeader() { |
| new RecordHeaders().add(null); |
| } |
| |
| private int getCount(Headers headers) { |
| int count = 0; |
| Iterator<Header> headerIterator = headers.iterator(); |
| while (headerIterator.hasNext()) { |
| headerIterator.next(); |
| count++; |
| } |
| return count; |
| } |
| |
| static void assertHeader(String key, String value, Header actual) { |
| assertEquals(key, actual.key()); |
| assertTrue(Arrays.equals(value.getBytes(), actual.value())); |
| } |
| |
| } |