/*
 * 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.flink.benchmark.functions;

import org.apache.flink.api.common.JobExecutionResult;
import org.apache.flink.client.program.ProgramInvocationException;
import org.apache.flink.runtime.client.JobExecutionException;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;

import static org.junit.Assert.fail;

/**
 * Test utilities.
 */
public class TestUtils {

    public static JobExecutionResult tryExecute(StreamExecutionEnvironment see, String name) throws Exception {
        try {
            return see.execute(name);
        }
        catch (ProgramInvocationException | JobExecutionException root) {
            Throwable cause = root.getCause();

            // search for nested SuccessExceptions
            int depth = 0;
            while (!(cause instanceof SuccessException)) {
                if (cause == null || depth++ == 20) {
                    root.printStackTrace();
                    fail("Test failed: " + root.getMessage());
                }
                else {
                    cause = cause.getCause();
                }
            }
        }

        return null;
    }
}