/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * 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 permissions and
 * limitations under the License.
 */

package org.apache.shardingsphere.test.integration.junit.param;

import lombok.RequiredArgsConstructor;
import lombok.SneakyThrows;
import org.apache.shardingsphere.test.integration.junit.param.model.ParameterizedArray;
import org.junit.runners.parameterized.BlockJUnit4ClassRunnerWithParameters;

import java.lang.reflect.Field;

/**
 * Runner parameters.
 */
@RequiredArgsConstructor
public final class RunnerParameters {
    
    private final Runnable childStatement;
    
    /**
     * Get parameterized array.
     *
     * @return parameterized array
     */
    @SneakyThrows(ReflectiveOperationException.class)
    public ParameterizedArray getParameterizedArray() {
        Field parametersField = BlockJUnit4ClassRunnerWithParameters.class.getDeclaredField("parameters");
        parametersField.setAccessible(true);
        Object[] parameters = (Object[]) parametersField.get(getRunner());
        return (ParameterizedArray) parameters[0];
    }
    
    @SneakyThrows(ReflectiveOperationException.class)
    private Object getRunner() {
        Field field = childStatement.getClass().getDeclaredField("val$each");
        field.setAccessible(true);
        return field.get(childStatement);
    }
}
