/*
* Copyright (c) 2007 Mockito contributors
* This program is made available under the terms of the MIT License.
*/
package org.mockito.internal.invocation;
import java.lang.reflect.Method;
import org.mockito.ArgumentMatcher;
@SuppressWarnings({"unchecked","rawtypes"})
public class TypeSafeMatching implements ArgumentMatcherAction {
private final static ArgumentMatcherAction TYPE_SAFE_MATCHING_ACTION = new TypeSafeMatching();
private TypeSafeMatching() {}
public static ArgumentMatcherAction matchesTypeSafe(){
return TYPE_SAFE_MATCHING_ACTION;
}
@Override
public boolean apply(ArgumentMatcher matcher, Object argument) {
return isCompatible(matcher, argument) && matcher.matches(argument);
}
/**
* Returns true
if the given argument can be passed to
* the given argumentMatcher
without causing a
* {@link ClassCastException}.
*/
private static boolean isCompatible(ArgumentMatcher> argumentMatcher, Object argument) {
if (argument == null)
return true;
Class> expectedArgumentType = getArgumentType(argumentMatcher);
return expectedArgumentType.isInstance(argument);
}
/**
* Returns the type of {@link ArgumentMatcher#matches(Object)} of the given
* {@link ArgumentMatcher} implementation.
*/
private static Class> getArgumentType(ArgumentMatcher> argumentMatcher) {
Method[] methods = argumentMatcher.getClass().getMethods();
for (Method method : methods) {
if (isMatchesMethod(method)) {
return method.getParameterTypes()[0];
}
}
throw new NoSuchMethodError("Method 'matches(T)' not found in ArgumentMatcher: " + argumentMatcher + " !\r\n Please file a bug with this stack trace at: https://github.com/mockito/mockito/issues/new ");
}
/**
* Returns true
if the given method is
* {@link ArgumentMatcher#matches(Object)}
*/
private static boolean isMatchesMethod(Method method) {
if (method.getParameterTypes().length != 1) {
return false;
}
if (method.isBridge()) {
return false;
}
return "matches".equals(method.getName());
}
}