/*
 * Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
 *
 * Portions of this software were developed by the Unidata Program at the
 * University Corporation for Atmospheric Research.
 *
 * Access and use of this software shall impose the following obligations
 * and understandings on the user. The user is granted the right, without
 * any fee or cost, to use, copy, modify, alter, enhance and distribute
 * this software, and any derivative works thereof, and its supporting
 * documentation for any purpose whatsoever, provided that this entire
 * notice appears in all copies of the software, derivative works and
 * supporting documentation.  Further, UCAR requests that the user credit
 * UCAR/Unidata in any publications that result from the use of this
 * software or in any product that includes this software. The names UCAR
 * and/or Unidata, however, may not be used in any advertising or publicity
 * to endorse or promote any products or commercial entity unless specific
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 * understands that UCAR/Unidata is not obligated to provide the user with
 * any support, consulting, training or assistance of any kind with regard
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 *
 * THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
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 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
 */
package ucar.nc2.dods;

import java.io.IOException;

import org.junit.experimental.categories.Category;
import ucar.ma2.Array;
import ucar.ma2.ArrayDouble;
import ucar.ma2.DataType;
import ucar.ma2.IndexIterator;
import ucar.nc2.Variable;
import ucar.unidata.util.test.category.NeedsExternalResource;

import static org.junit.Assert.assertEquals;

/** Test nc2 dods in the JUnit framework.
 * Dataset {
    Grid {
     ARRAY:
        Float64 amp[10];
     MAPS:
        Float64 x[10];
    } OneD;
} Simple;*/
@Category(NeedsExternalResource.class)
public class TestDODSGrid {

  @org.junit.Test
  public void testGrid() throws IOException {
    DODSNetcdfFile dodsfile = TestDODSRead.open("test.06a");

    Variable v = null;

    // arrays
    assert(null != (v = dodsfile.findVariable("OneD")));
    assert v instanceof DODSVariable;
    checkArray(v);

    // map
    assert(null != (v = dodsfile.findVariable("x")));
    checkArray(v);
  }

  void checkArray( Variable v) throws IOException {
    assert v.getRank() == 1;
    assert v.getSize() == 10;
    assert v.getDataType() == DataType.DOUBLE;
    Array a = v.read();
    assert a.getElementType() == double.class;
    assert a instanceof ArrayDouble.D1;
    double[] tFloat64 = new double[] {1.0, 0.9999500004166653, 0.9998000066665778,
      0.9995500337489875, 0.9992001066609779, 0.9987502603949663, 0.9982005399352042,
      0.9975510002532796, 0.9968017063026194, 0.9959527330119943};

    IndexIterator iter = a.getIndexIterator();
    int count = 0;
    while (iter.hasNext()) {
      assertEquals(iter.getDoubleNext(), tFloat64[count], 1.0e-9);
      count++;
    }
  }

}