/*
 *  ******************************************************************************
 *  *
 *  *
 *  * This program and the accompanying materials are made available under the
 *  * terms of the Apache License, Version 2.0 which is available at
 *  * https://www.apache.org/licenses/LICENSE-2.0.
 *  *
 *  *  See the NOTICE file distributed with this work for additional
 *  *  information regarding copyright ownership.
 *  * 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.
 *  *
 *  * SPDX-License-Identifier: Apache-2.0
 *  *****************************************************************************
 */

package org.nd4j.arrow;

import org.apache.arrow.flatbuf.Tensor;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;
import org.nd4j.common.tests.BaseND4JTest;
import org.nd4j.common.tests.tags.NativeTag;
import org.nd4j.common.tests.tags.TagNames;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.factory.Nd4j;

import static org.junit.jupiter.api.Assertions.assertEquals;

@Tag(TagNames.FILE_IO)
@NativeTag
public class ArrowSerdeTest extends BaseND4JTest {

    @Test
    public void testBackAndForth() {
        INDArray arr = Nd4j.linspace(1,4,4);
        Tensor tensor = ArrowSerde.toTensor(arr);
        INDArray arr2 = ArrowSerde.fromTensor(tensor);
        assertEquals(arr,arr2);
    }


    @Test
    public void testSerializeView() {
        INDArray matrix = Nd4j.linspace(1,8,8).reshape(2,4);
        Tensor tensor = ArrowSerde.toTensor(matrix.slice(0));
        INDArray from = ArrowSerde.fromTensor(tensor);
        assertEquals(matrix.data().dataType(),from.data().dataType());
        assertEquals(matrix.slice(0),from);
    }

}
