package org.infinispan.commands;
import static org.testng.AssertJUnit.assertNotNull;
import java.lang.reflect.Constructor;
import java.lang.reflect.Modifier;
import java.util.List;
import java.util.SortedMap;
import java.util.TreeMap;
import org.infinispan.commons.util.ClassFinder;
import org.infinispan.test.AbstractInfinispanTest;
import org.testng.annotations.Test;
@Test(groups = "unit", testName = "commands.CommandIdUniquenessTest")
public class CommandIdUniquenessTest extends AbstractInfinispanTest {
public void testCommandIdUniqueness() throws Exception {
List<Class<?>> commands = ClassFinder.isAssignableFrom(ReplicableCommand.class);
SortedMap<Byte, String> cmdIds = new TreeMap<Byte, String>();
for (Class<?> c : commands) {
if (!c.isInterface() && !Modifier.isAbstract(c.getModifiers()) && !LocalCommand.class.isAssignableFrom(c)) {
log.infof("Testing %s", c.getSimpleName());
Constructor<?>[] declaredCtors = c.getDeclaredConstructors();
Constructor<?> constructor = null;
for (Constructor<?> declaredCtor : declaredCtors) {
if (declaredCtor.getParameterTypes().length == 0) {
constructor = declaredCtor;
constructor.setAccessible(true);
break;
}
}
assertNotNull("Empty constructor not found for " + c.getSimpleName(), constructor);
ReplicableCommand cmd = (ReplicableCommand) constructor.newInstance();
byte b = cmd.getCommandId();
assert b > 0 : "Command " + c.getSimpleName() + " has a command id of " + b + " and does not implement LocalCommand!";
assert !cmdIds.containsKey(b) : "Command ID [" + b + "] is duplicated in " + c.getSimpleName() + " and " + cmdIds.get(b);
cmdIds.put(b, c.getSimpleName());
}
}
}
}