| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.hc.core5.util; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.nio.ByteBuffer; |
| import java.nio.charset.StandardCharsets; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| /** |
| * Unit tests for {@link ByteArrayBuffer}. |
| * |
| */ |
| public class TestByteArrayBuffer { |
| |
| @Test |
| public void testConstructor() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(16); |
| Assert.assertEquals(16, buffer.capacity()); |
| Assert.assertEquals(0, buffer.length()); |
| Assert.assertNotNull(buffer.array()); |
| Assert.assertEquals(16, buffer.array().length); |
| try { |
| new ByteArrayBuffer(-1); |
| Assert.fail("IllegalArgumentException should have been thrown"); |
| } catch (final IllegalArgumentException ex) { |
| // expected |
| } |
| } |
| |
| @Test |
| public void testSimpleAppend() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(16); |
| Assert.assertEquals(16, buffer.capacity()); |
| Assert.assertEquals(0, buffer.length()); |
| final byte[] b1 = buffer.toByteArray(); |
| Assert.assertNotNull(b1); |
| Assert.assertEquals(0, b1.length); |
| Assert.assertTrue(buffer.isEmpty()); |
| Assert.assertFalse(buffer.isFull()); |
| |
| final byte[] tmp = new byte[] { 1, 2, 3, 4}; |
| buffer.append(tmp, 0, tmp.length); |
| Assert.assertEquals(16, buffer.capacity()); |
| Assert.assertEquals(4, buffer.length()); |
| Assert.assertFalse(buffer.isEmpty()); |
| Assert.assertFalse(buffer.isFull()); |
| |
| final byte[] b2 = buffer.toByteArray(); |
| Assert.assertNotNull(b2); |
| Assert.assertEquals(4, b2.length); |
| for (int i = 0; i < tmp.length; i++) { |
| Assert.assertEquals(tmp[i], b2[i]); |
| Assert.assertEquals(tmp[i], buffer.byteAt(i)); |
| } |
| buffer.clear(); |
| Assert.assertEquals(16, buffer.capacity()); |
| Assert.assertEquals(0, buffer.length()); |
| Assert.assertTrue(buffer.isEmpty()); |
| Assert.assertFalse(buffer.isFull()); |
| } |
| |
| @Test |
| public void testExpandAppend() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| Assert.assertEquals(4, buffer.capacity()); |
| |
| final byte[] tmp = new byte[] { 1, 2, 3, 4}; |
| buffer.append(tmp, 0, 2); |
| buffer.append(tmp, 0, 4); |
| buffer.append(tmp, 0, 0); |
| |
| Assert.assertEquals(8, buffer.capacity()); |
| Assert.assertEquals(6, buffer.length()); |
| |
| buffer.append(tmp, 0, 4); |
| |
| Assert.assertEquals(16, buffer.capacity()); |
| Assert.assertEquals(10, buffer.length()); |
| } |
| |
| @Test |
| public void testAppendHeapByteBuffer() { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| Assert.assertEquals(4, buffer.capacity()); |
| |
| final ByteBuffer tmp = ByteBuffer.wrap(new byte[] { 1, 2, 3, 4, 5, 6}); |
| buffer.append(tmp); |
| |
| Assert.assertFalse("The input buffer should be drained", tmp.hasRemaining()); |
| Assert.assertEquals(8, buffer.capacity()); |
| Assert.assertEquals(6, buffer.length()); |
| |
| tmp.clear(); |
| buffer.append(tmp); |
| |
| Assert.assertFalse("The input buffer should be drained", tmp.hasRemaining()); |
| Assert.assertEquals(16, buffer.capacity()); |
| Assert.assertEquals(12, buffer.length()); |
| Assert.assertArrayEquals(new byte[] {1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6}, buffer.toByteArray()); |
| } |
| |
| @Test |
| public void testAppendHeapByteBufferWithOffset() { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| Assert.assertEquals(4, buffer.capacity()); |
| |
| final ByteBuffer tmp = ByteBuffer.wrap(new byte[] { 7, 7, 1, 2, 3, 4, 5, 6, 7, 7}, 2, 6).slice(); |
| Assert.assertTrue("Validate this is testing a buffer with an array offset", tmp.arrayOffset() > 0); |
| |
| buffer.append(tmp); |
| |
| Assert.assertFalse("The input buffer should be drained", tmp.hasRemaining()); |
| Assert.assertEquals(8, buffer.capacity()); |
| Assert.assertEquals(6, buffer.length()); |
| |
| tmp.clear(); |
| Assert.assertEquals(6, tmp.remaining()); |
| buffer.append(tmp); |
| |
| Assert.assertFalse("The input buffer should be drained", tmp.hasRemaining()); |
| Assert.assertEquals(16, buffer.capacity()); |
| Assert.assertEquals(12, buffer.length()); |
| Assert.assertArrayEquals(new byte[] {1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6}, buffer.toByteArray()); |
| } |
| |
| @Test |
| public void testAppendDirectByteBuffer() { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| Assert.assertEquals(4, buffer.capacity()); |
| |
| final ByteBuffer tmp = ByteBuffer.allocateDirect(6); |
| tmp.put(new byte[] { 1, 2, 3, 4, 5, 6}).flip(); |
| buffer.append(tmp); |
| |
| Assert.assertFalse("The input buffer should be drained", tmp.hasRemaining()); |
| Assert.assertEquals(8, buffer.capacity()); |
| Assert.assertEquals(6, buffer.length()); |
| |
| tmp.clear(); |
| buffer.append(tmp); |
| |
| Assert.assertFalse("The input buffer should be drained", tmp.hasRemaining()); |
| Assert.assertEquals(16, buffer.capacity()); |
| Assert.assertEquals(12, buffer.length()); |
| Assert.assertArrayEquals(new byte[] {1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6}, buffer.toByteArray()); |
| } |
| |
| @Test |
| public void testInvalidAppend() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| buffer.append((byte[])null, 0, 0); |
| |
| final byte[] tmp = new byte[] { 1, 2, 3, 4}; |
| try { |
| buffer.append(tmp, -1, 0); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| try { |
| buffer.append(tmp, 0, -1); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| try { |
| buffer.append(tmp, 0, 8); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| try { |
| buffer.append(tmp, 10, Integer.MAX_VALUE); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| try { |
| buffer.append(tmp, 2, 4); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| } |
| |
| @Test |
| public void testAppendOneByte() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| Assert.assertEquals(4, buffer.capacity()); |
| |
| final byte[] tmp = new byte[] { 1, 127, -1, -128, 1, -2}; |
| for (final byte element : tmp) { |
| buffer.append(element); |
| } |
| Assert.assertEquals(8, buffer.capacity()); |
| Assert.assertEquals(6, buffer.length()); |
| |
| for (int i = 0; i < tmp.length; i++) { |
| Assert.assertEquals(tmp[i], buffer.byteAt(i)); |
| } |
| } |
| |
| @Test |
| public void testSetLength() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| buffer.setLength(2); |
| Assert.assertEquals(2, buffer.length()); |
| } |
| |
| @Test |
| public void testSetInvalidLength() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| try { |
| buffer.setLength(-2); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| try { |
| buffer.setLength(200); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| } |
| |
| @Test |
| public void testEnsureCapacity() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| buffer.ensureCapacity(2); |
| Assert.assertEquals(4, buffer.capacity()); |
| buffer.ensureCapacity(8); |
| Assert.assertEquals(8, buffer.capacity()); |
| } |
| |
| @Test |
| public void testIndexOf() throws Exception { |
| final byte COLON = (byte) ':'; |
| final byte COMMA = (byte) ','; |
| final byte[] bytes = "name1: value1; name2: value2".getBytes(StandardCharsets.US_ASCII); |
| final int index1 = 5; |
| final int index2 = 20; |
| |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(16); |
| buffer.append(bytes, 0, bytes.length); |
| |
| Assert.assertEquals(index1, buffer.indexOf(COLON)); |
| Assert.assertEquals(-1, buffer.indexOf(COMMA)); |
| Assert.assertEquals(index1, buffer.indexOf(COLON, -1, 11)); |
| Assert.assertEquals(index1, buffer.indexOf(COLON, 0, 1000)); |
| Assert.assertEquals(-1, buffer.indexOf(COLON, 2, 1)); |
| Assert.assertEquals(index2, buffer.indexOf(COLON, index1 + 1, buffer.length())); |
| } |
| |
| @Test |
| public void testAppendCharArrayAsAscii() throws Exception { |
| final String s1 = "stuff"; |
| final String s2 = " and more stuff"; |
| final char[] b1 = s1.toCharArray(); |
| final char[] b2 = s2.toCharArray(); |
| |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(8); |
| buffer.append(b1, 0, b1.length); |
| buffer.append(b2, 0, b2.length); |
| |
| Assert.assertEquals(s1 + s2, new String(buffer.toByteArray(), StandardCharsets.US_ASCII)); |
| } |
| |
| @Test |
| public void testAppendNullCharArray() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(8); |
| buffer.append((char[])null, 0, 0); |
| Assert.assertEquals(0, buffer.length()); |
| } |
| |
| @Test |
| public void testAppendEmptyCharArray() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(8); |
| buffer.append(new char[] {}, 0, 0); |
| Assert.assertEquals(0, buffer.length()); |
| } |
| |
| @Test |
| public void testAppendNullCharArrayBuffer() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(8); |
| buffer.append((CharArrayBuffer)null, 0, 0); |
| Assert.assertEquals(0, buffer.length()); |
| } |
| |
| @Test |
| public void testAppendNullByteBuffer() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(8); |
| final ByteBuffer nullBuffer = null; |
| buffer.append(nullBuffer); |
| Assert.assertEquals(0, buffer.length()); |
| } |
| |
| @Test |
| public void testInvalidAppendCharArrayAsAscii() throws Exception { |
| final ByteArrayBuffer buffer = new ByteArrayBuffer(4); |
| buffer.append((char[])null, 0, 0); |
| |
| final char[] tmp = new char[] { '1', '2', '3', '4'}; |
| try { |
| buffer.append(tmp, -1, 0); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| try { |
| buffer.append(tmp, 0, -1); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| try { |
| buffer.append(tmp, 0, 8); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| try { |
| buffer.append(tmp, 10, Integer.MAX_VALUE); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| try { |
| buffer.append(tmp, 2, 4); |
| Assert.fail("IndexOutOfBoundsException should have been thrown"); |
| } catch (final IndexOutOfBoundsException ex) { |
| // expected |
| } |
| } |
| |
| @Test |
| public void testSerialization() throws Exception { |
| final ByteArrayBuffer orig = new ByteArrayBuffer(32); |
| orig.append(1); |
| orig.append(2); |
| orig.append(3); |
| final ByteArrayOutputStream outbuffer = new ByteArrayOutputStream(); |
| try (final ObjectOutputStream outStream = new ObjectOutputStream(outbuffer)) { |
| outStream.writeObject(orig); |
| } |
| final byte[] raw = outbuffer.toByteArray(); |
| final ByteArrayInputStream inBuffer = new ByteArrayInputStream(raw); |
| final ObjectInputStream inStream = new ObjectInputStream(inBuffer); |
| final ByteArrayBuffer clone = (ByteArrayBuffer) inStream.readObject(); |
| Assert.assertEquals(orig.capacity(), clone.capacity()); |
| Assert.assertEquals(orig.length(), clone.length()); |
| final byte[] data = clone.toByteArray(); |
| Assert.assertNotNull(data); |
| Assert.assertEquals(3, data.length); |
| Assert.assertEquals(1, data[0]); |
| Assert.assertEquals(2, data[1]); |
| Assert.assertEquals(3, data[2]); |
| } |
| |
| @Test |
| public void testControlCharFiltering() throws Exception { |
| final char[] chars = new char[256]; |
| for (char i = 0; i < 256; i++) { |
| chars[i] = i; |
| } |
| |
| final byte[] bytes = asByteArray(chars); |
| |
| Assert.assertEquals( |
| "?????????\t??????????????????????" |
| + " !\"#$%&'()*+,-./0123456789:;<=>?" |
| + "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_" |
| + "`abcdefghijklmnopqrstuvwxyz" |
| + "{|}~???????????????????????" |
| + "??????????\u00A0¡¢£¤¥¦§¨©ª«¬\u00AD®¯" |
| + "°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏ" |
| + "ÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîï" |
| + "ðñòóôõö÷øùúûüýþÿ", |
| new String(bytes, StandardCharsets.ISO_8859_1)); |
| } |
| |
| @Test |
| public void testUnicodeFiltering() throws Exception { |
| // Various languages |
| Assert.assertEquals("?????", new String(asByteArray("буквы".toCharArray()), StandardCharsets.ISO_8859_1)); |
| Assert.assertEquals("????", new String(asByteArray("四字熟語".toCharArray()), StandardCharsets.ISO_8859_1)); |
| |
| // Unicode snowman |
| Assert.assertEquals("?", new String(asByteArray("☃".toCharArray()), StandardCharsets.ISO_8859_1)); |
| |
| // Emoji (surrogate pair) |
| Assert.assertEquals("??", new String(asByteArray("\uD83D\uDE00".toCharArray()), StandardCharsets.ISO_8859_1)); |
| } |
| |
| private static byte[] asByteArray(final char[] chars) { |
| final ByteArrayBuffer byteArrayBuffer = new ByteArrayBuffer(chars.length); |
| byteArrayBuffer.append(chars, 0, chars.length); |
| return byteArrayBuffer.toByteArray(); |
| } |
| } |