144 lines
4.6 KiB
Java
144 lines
4.6 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.tomcat.util.buf;
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import java.nio.charset.Charset;
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import java.nio.charset.MalformedInputException;
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import java.nio.charset.StandardCharsets;
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import java.util.Locale;
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import org.junit.Assert;
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import org.junit.Test;
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public class TestB2CConverter {
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private static final byte[] UTF16_MESSAGE =
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new byte[] {-2, -1, 0, 65, 0, 66, 0, 67};
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private static final byte[] UTF8_INVALID = new byte[] {-8, -69, -73, -77};
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private static final byte[] UTF8_PARTIAL = new byte[] {-50};
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@Test
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public void testSingleMessage() throws Exception {
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testMessages(1);
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}
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@Test
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public void testTwoMessage() throws Exception {
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testMessages(2);
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}
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@Test
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public void testManyMessage() throws Exception {
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testMessages(10);
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}
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private void testMessages(int msgCount) throws Exception {
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B2CConverter conv = new B2CConverter(StandardCharsets.UTF_16);
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ByteChunk bc = new ByteChunk();
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CharChunk cc = new CharChunk(32);
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for (int i = 0; i < msgCount; i++) {
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bc.append(UTF16_MESSAGE, 0, UTF16_MESSAGE.length);
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conv.convert(bc, cc, true);
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Assert.assertEquals("ABC", cc.toString());
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bc.recycle();
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cc.recycle();
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conv.recycle();
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}
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System.out.println(cc);
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}
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@Test
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public void testLeftoverSize() {
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float maxLeftover = 0;
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String charsetName = "UNSET";
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for (Charset charset : Charset.availableCharsets().values()) {
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float leftover;
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if (charset.name().toLowerCase(Locale.ENGLISH).startsWith("x-")) {
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// Non-standard charset that browsers won't be using
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// Likely something used internally by the JRE
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continue;
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}
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try {
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leftover = charset.newEncoder().maxBytesPerChar();
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} catch (UnsupportedOperationException uoe) {
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// Skip it
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continue;
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}
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if (leftover > maxLeftover) {
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maxLeftover = leftover;
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charsetName = charset.name();
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}
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}
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Assert.assertTrue("Limit needs to be at least " + maxLeftover +
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" (used in charset '" + charsetName + "')",
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maxLeftover <= B2CConverter.LEFTOVER_SIZE);
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}
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@Test(expected=MalformedInputException.class)
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public void testBug54602a() throws Exception {
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// Check invalid input is rejected straight away
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B2CConverter conv = new B2CConverter(StandardCharsets.UTF_8);
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ByteChunk bc = new ByteChunk();
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CharChunk cc = new CharChunk();
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bc.append(UTF8_INVALID, 0, UTF8_INVALID.length);
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cc.allocate(bc.getLength(), -1);
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conv.convert(bc, cc, false);
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}
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@Test(expected=MalformedInputException.class)
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public void testBug54602b() throws Exception {
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// Check partial input is rejected
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B2CConverter conv = new B2CConverter(StandardCharsets.UTF_8);
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ByteChunk bc = new ByteChunk();
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CharChunk cc = new CharChunk();
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bc.append(UTF8_PARTIAL, 0, UTF8_PARTIAL.length);
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cc.allocate(bc.getLength(), -1);
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conv.convert(bc, cc, true);
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}
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@Test
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public void testBug54602c() throws Exception {
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// Check partial input is rejected once it is known to be all available
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B2CConverter conv = new B2CConverter(StandardCharsets.UTF_8);
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ByteChunk bc = new ByteChunk();
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CharChunk cc = new CharChunk();
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bc.append(UTF8_PARTIAL, 0, UTF8_PARTIAL.length);
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cc.allocate(bc.getLength(), -1);
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conv.convert(bc, cc, false);
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Exception e = null;
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try {
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conv.convert(bc, cc, true);
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} catch (MalformedInputException mie) {
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e = mie;
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}
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Assert.assertNotNull(e);
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}
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}
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