| /* |
| * 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.tomcat.util.buf; |
| |
| import java.nio.charset.Charset; |
| import java.nio.charset.MalformedInputException; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class TestB2CConverter { |
| |
| private static final byte[] UTF16_MESSAGE = |
| new byte[] {-2, -1, 0, 65, 0, 66, 0, 67}; |
| |
| private static final byte[] UTF8_INVALID = new byte[] {-8, -69, -73, -77}; |
| |
| private static final byte[] UTF8_PARTIAL = new byte[] {-50}; |
| |
| @Test |
| public void testSingleMessage() throws Exception { |
| testMessages(1); |
| } |
| |
| @Test |
| public void testTwoMessage() throws Exception { |
| testMessages(2); |
| } |
| |
| @Test |
| public void testManyMessage() throws Exception { |
| testMessages(10); |
| } |
| |
| private void testMessages(int msgCount) throws Exception { |
| B2CConverter conv = new B2CConverter("UTF-16"); |
| |
| ByteChunk bc = new ByteChunk(); |
| CharChunk cc = new CharChunk(32); |
| |
| |
| for (int i = 0; i < msgCount; i++) { |
| bc.append(UTF16_MESSAGE, 0, UTF16_MESSAGE.length); |
| conv.convert(bc, cc, true); |
| Assert.assertEquals("ABC", cc.toString()); |
| bc.recycle(); |
| cc.recycle(); |
| conv.recycle(); |
| } |
| |
| System.out.println(cc); |
| } |
| |
| @Test |
| public void testLeftoverSize() { |
| float maxLeftover = 0; |
| String charsetName = "UNSET"; |
| for (Charset charset : Charset.availableCharsets().values()) { |
| float leftover; |
| if (charset.name().toLowerCase().startsWith("x-")) { |
| // Non-standard charset that browsers won't be using |
| // Likely something used internally by the JRE |
| continue; |
| } |
| try { |
| leftover = charset.newEncoder().maxBytesPerChar(); |
| } catch (UnsupportedOperationException uoe) { |
| // Skip it |
| continue; |
| } |
| if (leftover > maxLeftover) { |
| maxLeftover = leftover; |
| charsetName = charset.name(); |
| } |
| } |
| Assert.assertTrue("Limit needs to be at least " + maxLeftover + |
| " (used in charset '" + charsetName + "')", |
| maxLeftover <= B2CConverter.LEFTOVER_SIZE); |
| } |
| |
| @Test(expected=MalformedInputException.class) |
| public void testBug54602a() throws Exception { |
| // Check invalid input is rejected straight away |
| B2CConverter conv = new B2CConverter("UTF-8"); |
| ByteChunk bc = new ByteChunk(); |
| CharChunk cc = new CharChunk(); |
| |
| bc.append(UTF8_INVALID, 0, UTF8_INVALID.length); |
| cc.allocate(bc.getLength(), -1); |
| |
| conv.convert(bc, cc, false); |
| } |
| |
| @Test(expected=MalformedInputException.class) |
| public void testBug54602b() throws Exception { |
| // Check partial input is rejected |
| B2CConverter conv = new B2CConverter("UTF-8"); |
| ByteChunk bc = new ByteChunk(); |
| CharChunk cc = new CharChunk(); |
| |
| bc.append(UTF8_PARTIAL, 0, UTF8_PARTIAL.length); |
| cc.allocate(bc.getLength(), -1); |
| |
| conv.convert(bc, cc, true); |
| } |
| |
| @Test |
| public void testBug54602c() throws Exception { |
| // Check partial input is rejected once it is known to be all available |
| B2CConverter conv = new B2CConverter("UTF-8"); |
| ByteChunk bc = new ByteChunk(); |
| CharChunk cc = new CharChunk(); |
| |
| bc.append(UTF8_PARTIAL, 0, UTF8_PARTIAL.length); |
| cc.allocate(bc.getLength(), -1); |
| |
| conv.convert(bc, cc, false); |
| |
| Exception e = null; |
| try { |
| conv.convert(bc, cc, true); |
| } catch (MalformedInputException mie) { |
| e = mie; |
| } |
| Assert.assertNotNull(e); |
| } |
| } |