/*
* 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.harmony.unpack200.tests;
import junit.framework.TestCase;
import org.apache.harmony.pack200.Codec;
import org.apache.harmony.pack200.Pack200Exception;
import org.apache.harmony.unpack200.AttributeLayout;
import org.apache.harmony.unpack200.Segment;
import org.apache.harmony.unpack200.SegmentConstantPool;
import org.apache.harmony.unpack200.bytecode.CPUTF8;
import org.apache.harmony.unpack200.bytecode.ClassFileEntry;
public class AttributeLayoutTest extends TestCase {
public class TestSegment extends Segment {
public SegmentConstantPool getConstantPool() {
final ClassFileEntry[][] data = new ClassFileEntry[][] {
{}, // ALL
{ entry("Zero"), entry("One"), entry("Two"),
entry("Three"), entry("Four"), entry("Five"),
entry("Six"), entry("Seven"), entry("Eight"),
entry("Nine") }, // UTF-8
{},
{},
{},
{},
{},
{},
{ entry("Eins"), entry("Zwei"), entry("Drei"),
entry("Vier"), entry("Funf"), entry("Sechs"),
entry("Sieben"), entry("Acht"), entry("Neun") }, // Signature
};
return new SegmentConstantPool(null) {
public ClassFileEntry getValue(int cp, long index) {
if (index == -1)
return null;
return data[cp][(int) index];
}
};
}
private ClassFileEntry entry(String string) {
return new CPUTF8(string);
}
}
public void testBadData() {
assertTrue(throwsException(null, AttributeLayout.CONTEXT_CLASS, ""));
assertTrue(throwsException("", AttributeLayout.CONTEXT_CLASS, ""));
assertTrue(!throwsException("name", AttributeLayout.CONTEXT_CLASS, ""));
assertTrue(!throwsException("name", AttributeLayout.CONTEXT_METHOD, ""));
assertTrue(!throwsException("name", AttributeLayout.CONTEXT_FIELD, ""));
assertTrue(!throwsException("name", AttributeLayout.CONTEXT_CODE, ""));
assertTrue(throwsException("name", -1, ""));
assertTrue(throwsException("name", 1234, ""));
}
public void testLayoutRU() throws Pack200Exception {
AttributeLayout layout = new AttributeLayout("RU",
AttributeLayout.CONTEXT_CLASS, "RU", 1);
Segment segment = new TestSegment();
assertNull(layout.getValue(-1, segment.getConstantPool()));
assertEquals("Zero", ((CPUTF8)layout.getValue(0, segment.getConstantPool())).underlyingString());
assertEquals("One", ((CPUTF8)layout.getValue(1, segment.getConstantPool())).underlyingString());
}
public void testLayoutRUN() throws Pack200Exception {
AttributeLayout layout = new AttributeLayout("RUN",
AttributeLayout.CONTEXT_CLASS, "RUN", 1);
Segment segment = new TestSegment();
assertNull(layout.getValue(0, segment.getConstantPool()));
assertEquals("Zero", ((CPUTF8)layout.getValue(1, segment.getConstantPool())).underlyingString());
assertEquals("One", ((CPUTF8)layout.getValue(2, segment.getConstantPool())).underlyingString());
}
public void testLayoutRS() throws Pack200Exception {
AttributeLayout layout = new AttributeLayout("RS",
AttributeLayout.CONTEXT_CLASS, "RS", 1);
Segment segment = new TestSegment();
assertNull(layout.getValue(-1, segment.getConstantPool()));
assertEquals("Eins", ((CPUTF8)layout.getValue(0, segment.getConstantPool())).underlyingString());
assertEquals("Zwei", ((CPUTF8)layout.getValue(1, segment.getConstantPool())).underlyingString());
}
public void testLayoutRSN() throws Pack200Exception {
AttributeLayout layout = new AttributeLayout("RSN",
AttributeLayout.CONTEXT_CLASS, "RSN", 1);
Segment segment = new TestSegment();
assertNull(layout.getValue(0, segment.getConstantPool()));
assertEquals("Eins", ((CPUTF8)layout.getValue(1, segment.getConstantPool())).underlyingString());
assertEquals("Zwei", ((CPUTF8)layout.getValue(2, segment.getConstantPool())).underlyingString());
}
public void testGetCodec() throws Pack200Exception {
AttributeLayout layout = new AttributeLayout("O",
AttributeLayout.CONTEXT_CLASS, "HOBS", 1);
assertEquals(Codec.BRANCH5, layout.getCodec());
layout = new AttributeLayout("P", AttributeLayout.CONTEXT_METHOD,
"PIN", 1);
assertEquals(Codec.BCI5, layout.getCodec());
layout = new AttributeLayout("S", AttributeLayout.CONTEXT_FIELD, "HS",
1);
assertEquals(Codec.SIGNED5, layout.getCodec());
layout = new AttributeLayout("RS", AttributeLayout.CONTEXT_CODE,
"RRRS", 1);
assertEquals(Codec.UNSIGNED5, layout.getCodec());
layout = new AttributeLayout("KS", AttributeLayout.CONTEXT_CLASS,
"RKS", 1);
assertEquals(Codec.UNSIGNED5, layout.getCodec());
layout = new AttributeLayout("B", AttributeLayout.CONTEXT_CLASS,
"TRKSB", 1);
assertEquals(Codec.BYTE1, layout.getCodec());
}
public boolean throwsException(String name, int context, String layout) {
try {
new AttributeLayout(name, context, layout, -1);
return false;
} catch (Pack200Exception e) {
return true;
}
}
}