/*******************************************************************************
 * Copyright (c) 2015-2018 Skymind, Inc.
 *
 * 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.
 *
 * 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.linalg.shape.ones;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.nd4j.linalg.BaseNd4jTest;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.factory.Nd4j;
import org.nd4j.linalg.factory.Nd4jBackend;
import org.nd4j.linalg.indexing.NDArrayIndex;

import static org.junit.Assert.assertEquals;

/**
 * @author Adam Gibson
 */
@RunWith(Parameterized.class)
public class LeadingAndTrailingOnesC extends BaseNd4jTest {

    public LeadingAndTrailingOnesC(Nd4jBackend backend) {
        super(backend);
    }

    @Test
    public void testCreateLeadingAndTrailingOnes() {
        INDArray arr = Nd4j.create(1, 10, 1, 1);
        arr.assign(1);
//        System.out.println(arr);
    }

    @Test
    public void testMatrix() {
        INDArray arr = Nd4j.linspace(1, 4, 4).reshape(2, 2);
        INDArray slice1 = arr.slice(1);
//        System.out.println(arr.slice(1));
        INDArray oneInMiddle = Nd4j.linspace(1, 4, 4).reshape(2, 1, 2);
        INDArray otherSlice = oneInMiddle.slice(1);
        assertEquals(2, otherSlice.offset());
//        System.out.println(otherSlice);
        INDArray twoOnesInMiddle = Nd4j.linspace(1, 4, 4).reshape(2, 1, 1, 2);
        INDArray sub = twoOnesInMiddle.get(NDArrayIndex.point(1), NDArrayIndex.all(), NDArrayIndex.all(),
                        NDArrayIndex.all());
        assertEquals(2, sub.offset());

    }

    @Test
    public void testMultipleOnesInMiddle() {
        INDArray tensor = Nd4j.linspace(1, 144, 144).reshape(2, 2, 1, 1, 6, 6);
        INDArray tensorSlice1 = tensor.slice(1);
        INDArray tensorSlice1Slice1 = tensorSlice1.slice(1);
//        System.out.println(tensor);
    }

    @Override
    public char ordering() {
        return 'c';
    }
}