StringableObject.java

package org.junit.tests.experimental.theories.extendingwithstubs;

import java.util.Arrays;

public class StringableObject {
    public Object obj;

    public StringableObject(Object obj) {
        this.obj = obj;
    }

    public Object stringableObject() {
        if (isListableArray()) {
            return Arrays.asList((Object[]) obj);
        } else {
            return obj;
        }
    }

    private boolean isListableArray() {
        Class<?> type = obj.getClass();
        return type.isArray() && !type.getComponentType().isPrimitive();
    }

    @Override
    public String toString() {
        return stringableObject().toString();
    }
}