/*
Copyright 2009-2013 Attila Szegedi
Licensed under both the Apache License, Version 2.0 (the "Apache License")
and the BSD License (the "BSD License"), with licensee being free to
choose either of the two at their discretion.
You may not use this file except in compliance with either the Apache
License or the BSD License.
If you choose to use this file in compliance with the Apache License, the
following notice applies to you:
You may obtain a copy of the Apache License at
http://www.apache.org/licenses/LICENSE-2.0
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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
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* Redistributions of source code must retain the above copyright
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package org.dynalang.dynalink.beans;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.dynalang.dynalink.CallSiteDescriptor;
import org.dynalang.dynalink.linker.ConversionComparator.Comparison;
import org.dynalang.dynalink.linker.GuardedInvocation;
import org.dynalang.dynalink.linker.GuardingDynamicLinker;
import org.dynalang.dynalink.linker.LinkRequest;
import org.dynalang.dynalink.linker.LinkerServices;
import org.dynalang.dynalink.support.CallSiteDescriptorFactory;
import org.dynalang.dynalink.support.LinkRequestImpl;
/**
* Tests {@link BeansLinker} corner cases not exercised by other tests.
*
* @author Attila Szegedi
*/
public class TestBeansLinker extends TestCase {
/**
* Tests all conditions under which a BeansLinker would not link based solely on its own arguments.
*
* @throws Exception if an exception occurs
*/
public void testAllNulls() throws Exception {
final BeansLinker linker = new BeansLinker();
final LinkerServices ls = new LinkerServices() {
@Override
public boolean canConvert(Class<?> from, Class<?> to) {
throw new AssertionFailedError();
}
@Override
public MethodHandle asType(MethodHandle handle, MethodType fromType) {
throw new AssertionFailedError();
}
@Override
public GuardedInvocation getGuardedInvocation(LinkRequest lreq) throws Exception {
throw new AssertionFailedError();
}
@Override
public Comparison compareConversion(Class<?> sourceType, Class<?> targetType1, Class<?> targetType2) {
throw new AssertionFailedError();
}
@Override
public MethodHandle getTypeConverter(Class<?> sourceType, Class<?> targetType) {
throw new AssertionFailedError();
}
};
// Can't link with null arguments
assertNull(getGuardedInvocation(linker, createCallSiteDescriptor("dyn:foo", MethodType.methodType(Void.TYPE)),
ls, (Object[])null));
// Can't link with zero arguments
assertNull(getGuardedInvocation(linker, createCallSiteDescriptor("dyn:foo", MethodType.methodType(Void.TYPE)),
ls, new Object[0]));
// Can't link with single null argument
assertNull(getGuardedInvocation(linker,
createCallSiteDescriptor("dyn:foo", MethodType.methodType(Void.TYPE, Object.class)), ls,
new Object[] { null }));
// Can't link with name that has less than two components
assertNull(getGuardedInvocation(linker,
createCallSiteDescriptor("", MethodType.methodType(Void.TYPE, Object.class)), ls, new Object()));
assertNull(getGuardedInvocation(linker,
createCallSiteDescriptor("foo", MethodType.methodType(Void.TYPE, Object.class)), ls, new Object()));
// Can't link with name that doesn't start with dyn:
assertNull(getGuardedInvocation(linker,
createCallSiteDescriptor("dynx:foo", MethodType.methodType(Void.TYPE, Object.class)), ls, new Object()));
}
private static GuardedInvocation getGuardedInvocation(GuardingDynamicLinker linker, CallSiteDescriptor descriptor,
LinkerServices linkerServices, Object... args) throws Exception {
return linker.getGuardedInvocation(new LinkRequestImpl(descriptor, false, args), linkerServices);
}
public void testInvalidName() throws Exception {
assertNull(getGuardedInvocation(new BeansLinker(),
createCallSiteDescriptor("dyn", MethodType.methodType(int.class)), null, new Object[1]));
}
public static CallSiteDescriptor createCallSiteDescriptor(String name, MethodType methodType) {
return CallSiteDescriptorFactory.create(MethodHandles.publicLookup(), name, methodType);
}
}