/*
* 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.CharacterCodingException;
import java.nio.charset.CodingErrorAction;
import java.nio.charset.StandardCharsets;
import org.junit.Assert ;
import org.junit.Test;
public class TestStringCache {
private static final byte [] BYTES_VALID = new byte [] { 65 , 66 , 67 , 68 };
private static final byte [] BYTES_INVALID = new byte [] {65 , 66 , -1 , 67 , 68 };
private static final ByteChunk INPUT_VALID = new ByteChunk();
private static final ByteChunk INPUT_INVALID = new ByteChunk();
private static final CodingErrorAction[] actions =
new CodingErrorAction[] { CodingErrorAction.IGNORE, CodingErrorAction.REPLACE, CodingErrorAction.REPORT };
static {
INPUT_VALID.setBytes(BYTES_VALID, 0 , BYTES_VALID.length);
INPUT_VALID.setCharset(StandardCharsets.UTF_8);
INPUT_INVALID.setBytes(BYTES_INVALID, 0 , BYTES_INVALID.length);
INPUT_INVALID.setCharset(StandardCharsets.UTF_8);
}
@Test
public void testCodingErrorLookup() {
System.setProperty("tomcat.util.buf.StringCache.byte.enabled" , "true" );
Assert .assertTrue(StringCache.byteEnabled);
StringCache sc = new StringCache();
sc.reset();
for (int i = 0 ; i < StringCache.trainThreshold * 2 ; i++) {
for (CodingErrorAction malformedInputAction : actions) {
try {
// UTF-8 doesn't have any unmappable characters
INPUT_VALID.toString(malformedInputAction, CodingErrorAction.IGNORE);
INPUT_INVALID.toString(malformedInputAction, CodingErrorAction.IGNORE);
} catch (CharacterCodingException e) {
// Ignore
}
}
}
Assert .assertNotNull(StringCache.bcCache);
// Check the valid input is cached correctly
for (CodingErrorAction malformedInputAction : actions) {
try {
Assert .assertEquals("ABCD" , INPUT_VALID.toString(malformedInputAction, CodingErrorAction.IGNORE));
} catch (CharacterCodingException e) {
// Should not happen for valid input
Assert .fail();
}
}
// Check the valid input is cached correctly
try {
Assert .assertEquals("ABCD" , INPUT_INVALID.toString(CodingErrorAction.IGNORE, CodingErrorAction.IGNORE));
} catch (CharacterCodingException e) {
// Should not happen for invalid input with IGNORE
Assert .fail();
}
try {
Assert .assertEquals("AB\ufffdCD" , INPUT_INVALID.toString(CodingErrorAction.REPLACE, CodingErrorAction.IGNORE));
} catch (CharacterCodingException e) {
// Should not happen for invalid input with REPLACE
Assert .fail();
}
try {
Assert .assertEquals("ABCD" , INPUT_INVALID.toString(CodingErrorAction.REPORT, CodingErrorAction.IGNORE));
// Should throw exception
Assert .fail();
} catch (CharacterCodingException e) {
// Ignore
}
}
}
Messung V0.5 in Prozent C=90 H=91 G=90
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-29)
¤
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