content: /**
   * 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.bigtop.datagenerators.samplers.markovmodels;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertThat;
  import static org.junit.matchers.JUnitMatchers.hasItem;
  
  import java.util.Arrays;
  
  import org.apache.bigtop.datagenerators.samplers.SeedFactory;
  import org.apache.bigtop.datagenerators.samplers.markovmodels.MarkovModel;
  import org.apache.bigtop.datagenerators.samplers.markovmodels.MarkovModelBuilder;
  import org.apache.bigtop.datagenerators.samplers.markovmodels.MarkovProcess;
  import org.junit.Test;
  
  public class TestMarkovProcess
  {
  
  	@Test
  	public void test() throws Exception
  	{
  		SeedFactory factory = new SeedFactory(1245);
  		MarkovModelBuilder<String> builder = MarkovModelBuilder.create();
  
  		builder.addStartState("a", 1.0);
  		builder.addTransition("a", "b", 1.0);
  		builder.addTransition("a", "c", 1.0);
  
  		MarkovModel<String> msm = builder.build();
  		MarkovProcess<String> process = MarkovProcess.create(msm, factory);
  
  		String firstState = process.sample();
  		assertEquals(firstState, "a");
  
  		String secondState = process.sample();
  		assertThat(Arrays.asList("b", "c"), hasItem(secondState));
  	}
  
  }
  