/*
 * 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 hivemall.model;

import static org.junit.Assert.assertEquals;
import hivemall.utils.collections.IMapIterator;
import hivemall.utils.lang.HalfFloat;

import java.util.Random;

import org.junit.Test;

public class SpaceEfficientDenseModelTest {

    @Test
    public void testGetSet() {
        final int size = 1 << 12;

        final SpaceEfficientDenseModel model1 = new SpaceEfficientDenseModel(size);
        //model1.configureClock();
        final DenseModel model2 = new DenseModel(size);
        //model2.configureClock();

        final Random rand = new Random();
        for (int t = 0; t < 1000; t++) {
            int i = rand.nextInt(size);
            float f = HalfFloat.MAX_FLOAT * rand.nextFloat();
            IWeightValue w = new WeightValue(f);
            model1.set(i, w);
            model2.set(i, w);
        }

        assertEquals(model2.size(), model1.size());

        IMapIterator<Integer, IWeightValue> itor = model1.entries();
        while (itor.next() != -1) {
            int k = itor.getKey();
            float expected = itor.getValue().get();
            float actual = model2.getWeight(k);
            assertEquals(expected, actual, 32f);
        }
    }

}