/*
* Copyright 2010-2012 VMware and contributors
*
* Licensed 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.springsource.loaded.ri.test;
import static org.springsource.loaded.ri.test.AbstractReflectionTests.newInstance;
import static org.springsource.loaded.test.SpringLoadedTests.runOnInstance;
import java.util.HashSet;
import java.util.Set;
import org.junit.runner.RunWith;
import org.objectweb.asm.Type;
import org.springsource.loaded.test.infra.Result;
import org.springsource.loaded.test.infra.ResultException;
import org.springsource.loaded.testgen.ExploreAllChoicesRunner;
import org.springsource.loaded.testgen.GenerativeSpringLoadedTest;
import org.springsource.loaded.testgen.RejectedChoice;
import org.springsource.loaded.testgen.SignatureFinder;
/**
* Tests for Class.getConstructor Class.getDeclaredConstructor
*
* @author kdvolder
*/
@RunWith(ExploreAllChoicesRunner.class)
// @PredictResult
public class ClassGetConstructorTest extends GenerativeSpringLoadedTest {
private static final String TARGET_PACKAGE = "reflection.constructors";
/**
* Cached list of available constructor signatures. This doesn't need to be rediscovered for each test run since it is not
* expected to change.
*/
private static String[] methodSignatureCache = null;
/**
* List of target type names used by signature finder
*/
private static String[] targetTypeNames = { TARGET_PACKAGE + "." + "ClassWithConstructors" };
// Needed to run the tests (non-changing parameters)
private Class<?> callerClazz;
private Object callerInstance;
// Parameters that change for different test runs
private Class<?> targetClass; //One class chosen to focus test on
private String targetMethodName;
private Class<?>[] params;
private String methodDescriptor;
@Override
protected String getTargetPackage() {
return TARGET_PACKAGE;
}
@Override
protected void chooseTestParameters() throws RejectedChoice, Exception {
targetMethodName = "call" + choice("GetConstructor", "GetDeclaredConstructor");
toStringValue.append(targetMethodName + ": ");
if (choice()) {
//Try a non reloadable class
targetClass = targetClass("java.lang.Object");
} else {
//Will focus on the 'ClassTarget' only 'ClassTarget' needs to be loaded
targetClass = targetClass("ClassWithConstructors", choice("", "002"));
}
callerClazz = loadClassVersion("reflection.ClassInvoker", "");
callerInstance = newInstance(callerClazz);
chooseMethodSignature();
toStringValue.append("." + methodDescriptor);
}
private void chooseMethodSignature() throws Exception {
methodDescriptor = choice(getMethodSignatures());
Type[] asmTypes = Type.getArgumentTypes(methodDescriptor);
params = new Class<?>[asmTypes.length];
//Get the corresponding class for each param type name
for (int i = 0; i < asmTypes.length; i++) {
params[i] = classForName(asmTypes[i].getClassName());
}
}
private String[] getMethodSignatures() throws Exception {
if (methodSignatureCache == null) {
SignatureFinder sigFinder = new SignatureFinder();
Set<String> sigs = new HashSet<String>();
for (String targetType : targetTypeNames) {
sigFinder.gatherConstructorSignatures(targetType, sigs);
}
methodSignatureCache = sigs.toArray(new String[sigs.size()]);
}
return methodSignatureCache;
}
@Override
public Result test() throws ResultException, Exception {
Result r = runOnInstance(callerClazz, callerInstance, targetMethodName, targetClass, params);
return r;
}
}