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/**
* 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.hadoop.tools.rumen;
import org.junit.Test;
import static org.junit.Assert.*;
import static org.apache.hadoop.tools.rumen.RandomSeedGenerator.getSeed;
public class TestRandomSeedGenerator {
@Test
public void testSeedGeneration() {
long masterSeed1 = 42;
long masterSeed2 = 43;
assertTrue("Deterministic seeding",
getSeed("stream1", masterSeed1) == getSeed("stream1", masterSeed1));
assertTrue("Deterministic seeding",
getSeed("stream2", masterSeed2) == getSeed("stream2", masterSeed2));
assertTrue("Different streams",
getSeed("stream1", masterSeed1) != getSeed("stream2", masterSeed1));
assertTrue("Different master seeds",
getSeed("stream1", masterSeed1) != getSeed("stream1", masterSeed2));
}
}