CX0ChunkTest.java

package water.fvec;

import org.junit.Assert;
import org.junit.Test;
import water.TestUtil;

import java.util.Arrays;
import java.util.Iterator;

public class CX0ChunkTest extends TestUtil {
  @Test
  public void test_inflate_impl() {
    NewChunk nc = new NewChunk(null, 0);

    int[] vals = new int[]{0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

    for (int v : vals) nc.addNum(v, 0);

    Chunk cc = nc.compress();
    Assert.assertEquals(vals.length, cc.len());
    Assert.assertTrue(cc instanceof CX0Chunk);
    for (int i = 0; i < vals.length; ++i) Assert.assertEquals(vals[i], cc.at80(i));

    nc = new NewChunk(null, 0);
    cc.inflate_impl(nc);
    nc.values(0, nc.len());
    Assert.assertEquals(vals.length , nc.len());
    Assert.assertEquals(2, nc.sparseLen());
    Iterator<NewChunk.Value> it = nc.values(0, vals.length);
    Assert.assertTrue(it.next().rowId0() == 3);
    Assert.assertTrue(it.next().rowId0() == 101);
    Assert.assertTrue(!it.hasNext());
    for (int i = 0; i < vals.length; ++i) Assert.assertEquals(vals[i], nc.at80(i));
    for (int i = 0; i < vals.length; ++i) Assert.assertEquals(vals[i], nc.at8(i));

    Chunk cc2 = nc.compress();
    Assert.assertEquals(vals.length , cc.len());
    Assert.assertTrue(cc2 instanceof CX0Chunk);
    for (int i = 0; i < vals.length; ++i) Assert.assertEquals(vals[i], cc2.at80(i));
    for (int i = 0; i < vals.length; ++i) Assert.assertEquals(vals[i], cc2.at8(i));

    Assert.assertTrue(Arrays.equals(cc._mem, cc2._mem));
  }
}