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// ASM: a very small and fast Java bytecode manipulation framework
// Copyright (c) 2000-2011 INRIA, France Telecom
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holders nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
package org.objectweb.asm.tree.analysis;
import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.util.List;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type;
/**
* Unit tests for {@link SimpleVerifier}.
*
* @author Eric Bruneton
*/
class SimpleVerifierTest {
@Test
void testConstructor() {
assertDoesNotThrow(() -> new SimpleVerifier());
assertThrows(IllegalStateException.class, () -> new SimpleVerifier() {});
}
@ParameterizedTest
@CsvSource({
"java/lang/String, java/lang/Number, java/lang/Object",
"java/lang/Integer, java/lang/Number, java/lang/Number",
"java/lang/Float, java/lang/Integer, java/lang/Number",
"java/lang/Long, java/util/List, java/lang/Object",
"java/util/Map, java/util/List, java/lang/Object"
})
void testMerge_objectTypes(
final String internalName1, final String internalName2, final String expectedInternalName) {
BasicValue value1 = new BasicValue(Type.getObjectType(internalName1));
BasicValue value2 = new BasicValue(Type.getObjectType(internalName2));
SimpleVerifier verifier = new SimpleVerifier();
BasicValue merge1 = verifier.merge(value1, value2);
BasicValue merge2 = verifier.merge(value2, value1);
BasicValue expectedValue = new BasicValue(Type.getObjectType(expectedInternalName));
assertEquals(expectedValue, merge1);
assertEquals(expectedValue, merge2);
}
@Test
void testIsAssignableFrom_subclassWithInterfaces() {
Type baseType = Type.getObjectType("C");
Type superType = Type.getObjectType("D");
Type interfaceType = Type.getObjectType("I");
SimpleVerifier simpleVerifier =
new SimpleVerifier(
/* latest */ Opcodes.ASM10_EXPERIMENTAL,
baseType,
superType,
List.of(interfaceType),
false) {
@Override
public boolean isAssignableFrom(final Type type1, final Type type2) {
return super.isAssignableFrom(type1, type2);
}
@Override
protected Class<?> getClass(final Type type) {
// Return dummy classes, to make sure isAssignable in test() does not rely on them.
if (type == baseType) {
return int.class;
}
if (type == superType) {
return float.class;
}
if (type == interfaceType) {
return double.class;
}
return super.getClass(type);
}
};
assertTrue(simpleVerifier.isAssignableFrom(baseType, baseType));
assertTrue(simpleVerifier.isAssignableFrom(superType, baseType));
assertTrue(simpleVerifier.isAssignableFrom(interfaceType, baseType));
}
@Test
void testIsAssignableFrom_interface() {
Type baseType = Type.getObjectType("C");
Type interfaceType = Type.getObjectType("I");
SimpleVerifier simpleVerifier =
new SimpleVerifier(
/* latest */ Opcodes.ASM10_EXPERIMENTAL, interfaceType, null, null, true) {
@Override
protected Type getSuperClass(final Type type) {
return Type.getObjectType("java/lang/Object");
}
};
assertTrue(simpleVerifier.isAssignableFrom(interfaceType, baseType));
assertTrue(simpleVerifier.isAssignableFrom(interfaceType, Type.getObjectType("[I")));
assertFalse(simpleVerifier.isAssignableFrom(interfaceType, Type.INT_TYPE));
}
}
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