/*
* 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.io.IOException;
import org.junit.
Assert;
import org.junit.Ignore;
import org.junit.Test;
import org.apache.tomcat.util.buf.CharChunk.CharOutputChannel;
/**
* Test cases for {@link CharChunk}.
*/
public class TestCharChunk {
@Test
public void testEndsWith() {
CharChunk cc =
new CharChunk();
Assert.assertFalse(cc.endsWith(
"test"));
cc.setChars(
"xxtestxx".toCharArray(), 2, 4);
Assert.assertTrue(cc.endsWith(
""));
Assert.assertTrue(cc.endsWith(
"t"));
Assert.assertTrue(cc.endsWith(
"st"));
Assert.assertTrue(cc.endsWith(
"test"));
Assert.assertFalse(cc.endsWith(
"x"));
Assert.assertFalse(cc.endsWith(
"xxtest"));
}
@Test
public void testIndexOf_String() {
char[] chars =
"Hello\u00a0world".toCharArray();
final int len = chars.length;
CharChunk cc =
new CharChunk();
cc.setChars(chars, 0, len);
Assert.assertEquals(0, cc.indexOf(
"Hello", 0,
"Hello".length(), 0));
Assert.assertEquals(2, cc.indexOf(
"ll", 0, 2, 0));
Assert.assertEquals(2, cc.indexOf(
"Hello", 2, 2, 0));
Assert.assertEquals(7, cc.indexOf(
"o", 0, 1, 5));
// Does work outside of 0-127 (unlike ByteChunk)
Assert.assertEquals(5, cc.indexOf(
"\u00a0", 0, 1, 0));
cc.setChars(chars, 6, 5);
Assert.assertEquals(1, cc.indexOf(
"o", 0, 1, 0));
cc.setChars(chars, 6, 2);
Assert.assertEquals(0, cc.indexOf(
"wo", 0, 1, 0));
Assert.assertEquals(-1, cc.indexOf(
"d", 0, 1, 0));
}
@Ignore
// Requires an 11GB heap (on markt's desktop - YMMV)
@Test
public void testAppend()
throws Exception {
CharChunk cc =
new CharChunk();
cc.setCharOutputChannel(
new Sink());
// Defaults to no limit
char data[] =
new char[32 * 1024 * 1024];
for (
int i = 0; i < 100; i++) {
cc.append(data, 0, data.length);
}
Assert.assertEquals(AbstractChunk.ARRAY_MAX_SIZE, cc.getBuffer().length);
}
public static class Sink
implements CharOutputChannel {
@Override
public void realWriteChars(
char[] cbuf,
int off,
int len)
throws IOException {
// NO-OP
}
}
@Test
public void testToString() {
CharChunk cc =
new CharChunk();
Assert.assertNull(cc.toString());
char[] data =
new char[8];
cc.setChars(data, 0, data.length);
Assert.assertNotNull(cc.toString());
cc.recycle();
// toString() should behave consistently for new ByteChunk and
// immediately after a call to recycle().
Assert.assertNull(cc.toString());
}
}