/*
* 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 jakarta.el;
import java.util.ArrayList;
import org.junit.Assert ;
import org.junit.Test;
import org.apache.tomcat.util.res.StringManager;
public class TestImportHandler {
/**
* java . lang should be imported by default
*/
@Test
public void testResolveClass01() {
ImportHandler handler = new ImportHandler();
Class <?> result = handler.resolveClass("String" );
Assert .assertEquals(String.class , result);
}
/**
* Resolve an unknown class
*/
@Test
public void testResolveClass02() {
ImportHandler handler = new ImportHandler();
Class <?> result = handler.resolveClass("Foo" );
Assert .assertNull(result);
}
/**
* Conflict on resolution .
*/
@Test
public void testResolveClass03() {
ImportHandler handler = new ImportHandler();
handler.importPackage("org.apache.tomcat.util" );
handler.importPackage("org.apache.jasper.runtime" );
for (int i = 1 ; i <= 3 ; i++) {
try {
Class <?> clazz = handler.resolveClass("ExceptionUtils" );
Assert .fail("Expected ELException but got [" + clazz.getName() + "] on iteration " + i);
} catch (ELException ex) {
// Expected
}
}
}
/**
* Multiple package imports with a single match . https : //bz.apache.org/bugzilla/show_bug.cgi?id=57113
*/
@Test
public void testResolveClass04() {
ImportHandler handler = new ImportHandler();
handler.importPackage("java.util" );
handler.importPackage("java.net" );
Class <?> clazz = handler.resolveClass("ArrayList" );
Assert .assertEquals(ArrayList.class , clazz);
}
/**
* Attempting to resolve something that isn ' t a simple class name
* https : //bz.apache.org/bugzilla/show_bug.cgi?id=57132
*/
@Test
public void testResolveClass05() {
ImportHandler handler = new ImportHandler();
handler.importPackage("java.nio" );
Class <?> clazz = handler.resolveClass("charset.StandardCharsets" );
Assert .assertNull(clazz);
}
/**
* Attempting to resolve something that isn ' t a simple class name
* https : //bz.apache.org/bugzilla/show_bug.cgi?id=57132
*/
@Test
public void testResolveClass06() {
ImportHandler handler = new ImportHandler();
handler.importPackage("java.nio" );
Class <?> clazz = handler.resolveClass(null );
Assert .assertNull(clazz);
}
/**
* Import a valid class .
*/
@Test
public void testImportClass01() {
ImportHandler handler = new ImportHandler();
handler.importClass("org.apache.tomcat.util.res.StringManager" );
Class <?> result = handler.resolveClass("StringManager" );
Assert .assertEquals(StringManager.class , result);
}
/**
* Import an invalid class .
*/
@Test
public void testImportClass02() {
ImportHandler handler = new ImportHandler();
handler.importClass("org.apache.tomcat.util.res.StringManagerX" );
Class <?> result = handler.resolveClass("StringManagerX" );
Assert .assertNull(result);
}
/**
* Import conflicting classes
*/
@Test
public void testImportClass03() {
ImportHandler handler = new ImportHandler();
handler.importClass("org.apache.tomcat.util.ExceptionUtils" );
for (int i = 1 ; i <= 3 ; i++) {
try {
handler.importClass("org.apache.jasper.util.ExceptionUtils" );
Assert .fail("Expected ELException but got none on iteration " + i);
} catch (ELException ex) {
// Expected
}
}
}
/**
* Import duplicate classes ( i . e . the same class twice ) .
*/
@Test
public void testImportClass04() {
ImportHandler handler = new ImportHandler();
handler.importClass("org.apache.tomcat.util.res.StringManager" );
handler.importClass("org.apache.tomcat.util.res.StringManager" );
Class <?> result = handler.resolveClass("StringManager" );
Assert .assertEquals(StringManager.class , result);
}
/**
* Import an invalid package .
*/
@Test
public void testImportPackage01_57574() {
ImportHandler handler = new ImportHandler();
handler.importPackage("org.apache.tomcat.foo" );
// No exception is expected
}
/**
* Import a valid static field .
*/
@Test
public void testImportStatic01() {
ImportHandler handler = new ImportHandler();
handler.importStatic("org.apache.tomcat.util.scan.Constants.Package" );
Class <?> result = handler.resolveStatic("Package" );
Assert .assertEquals(org.apache.tomcat.util.scan.Constants.class , result);
}
/**
* Import an invalid static field - does not exist .
*/
@Test(expected = ELException.class )
public void testImportStatic02() {
ImportHandler handler = new ImportHandler();
handler.importStatic("org.apache.tomcat.util.buf.Constants.PackageXX" );
}
/**
* Import an invalid static field - non - public .
*/
@Test
public void testImportStatic03() {
ImportHandler handler = new ImportHandler();
handler.importStatic("org.apache.tomcat.util.buf.Ascii.toLower" );
Class <?> result = handler.resolveStatic("toLower" );
Assert .assertEquals(org.apache.tomcat.util.buf.Ascii.class , result);
}
/**
* Import an invalid static field - conflict .
*/
@Test
public void testImportStatic04() {
ImportHandler handler = new ImportHandler();
handler.importStatic("org.apache.tomcat.util.scan.Constants.Package" );
for (int i = 1 ; i <= 3 ; i++) {
try {
handler.importStatic("org.apache.tomcat.util.threads.Constants.Package" );
Assert .fail("Expected ELException but got none on iteration " + i);
} catch (ELException ex) {
// Expected
}
}
}
/**
* Package imports with conflicts due to non - public classes should not conflict .
*/
@Test
public void testBug57135() {
ImportHandler importHandler = new ImportHandler();
importHandler.importPackage("util.a" );
importHandler.importPackage("util.b" );
importHandler.resolveClass("Foo" );
}
}
Messung V0.5 in Prozent C=93 H=98 G=95
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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