MinTest.java

// Copyright 2015 by Ivan Popivanov
//
// Licensed 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 net.tradelib.functors;

import static org.junit.Assert.*;
import net.tradelib.functors.Min;

import org.junit.Test;

public class MinTest {

   @Test
   public void test() {
      String [] inputs = { "2024","1990.5","1983.25","1965","2008.25","2060","2067","2072.5","2079","2078.75","2084.25",
            "2085.75","2076.75","2052.5","2046.25","2016","1994.5","2019.5","2055","2035.25","2022.5","2016","2007.5",
            "1989","2013","2016.75","2026.5","2056.5","2044","2053.5","2030","1991.5","2018.5","1988.5","2017","2042",
            "2030","2055","2053","2042.5"};
      String [] expected = { null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,
            "1965","1965","1965","1965","1989","1989","1989","1989","1989","1989","1989","1989","1989","1989","1988.5",
            "1988.5","1988.5","1988.5","1988.5","1988.5","1988.5"};
      Min mm = new Min(20);
      for(int ii = 0; ii < inputs.length; ++ii) {
         mm.add(Double.parseDouble(inputs[ii]));
         double val = mm.last();
         if(expected[ii] == null) {
            assertTrue(Double.isNaN(val));
         } else {
            assertEquals(val, Double.parseDouble(expected[ii]), 1e-6);
         }
      }
   }

}