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Mock objects library for java

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/*
 * Copyright (c) 2007 Mockito contributors
 * This program is made available under the terms of the MIT License.
 */
package org.mockito.internal.stubbing.answers;

import org.mockito.internal.invocation.AbstractAwareMethod;
import org.mockito.internal.util.Primitives;
import org.mockito.invocation.Invocation;

import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

/**
 * by Szczepan Faber, created at: 3/31/12
 */
public class MethodInfo implements AbstractAwareMethod {

    private final Method method;

    public MethodInfo(Invocation theInvocation) {
        this.method = theInvocation.getMethod();
    }

    public boolean isValidException(Throwable throwable) {
        Class[] exceptions = method.getExceptionTypes();
        Class throwableClass = throwable.getClass();
        for (Class exception : exceptions) {
            if (exception.isAssignableFrom(throwableClass)) {
                return true;
            }
        }

        return false;
    }

    public boolean isValidReturnType(Class clazz) {
        if (method.getReturnType().isPrimitive() || clazz.isPrimitive()) {
            return Primitives.primitiveTypeOf(clazz) == Primitives.primitiveTypeOf(method.getReturnType());
        } else {
            return method.getReturnType().isAssignableFrom(clazz);
        }
    }

    public boolean isVoid() {
        return this.method.getReturnType() == Void.TYPE;
    }

    public String printMethodReturnType() {
        return method.getReturnType().getSimpleName();
    }

    public String getMethodName() {
        return method.getName();
    }

    public boolean returnsPrimitive() {
        return method.getReturnType().isPrimitive();
    }

    public Method getMethod() {
        return method;
    }

    public boolean isDeclaredOnInterface() {
        return method.getDeclaringClass().isInterface();
    }

    public boolean isAbstract() {
        return (method.getModifiers() & Modifier.ABSTRACT) != 0;
    }
}