/*
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 *  * 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.
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package org.eclipse.deeplearning4j.nd4j.linalg.ops.copy;

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;
import org.nd4j.common.tests.tags.NativeTag;
import org.nd4j.linalg.BaseNd4jTestWithBackends;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.factory.Nd4j;
import org.nd4j.linalg.factory.Nd4jBackend;

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

@NativeTag
public class CopyTest extends BaseNd4jTestWithBackends {


    @ParameterizedTest
    @MethodSource("org.nd4j.linalg.BaseNd4jTestWithBackends#configs")
    public void testCopy(Nd4jBackend backend) {
        INDArray arr = Nd4j.linspace(1, 4, 4).reshape(2, 2);
        INDArray dup = arr.dup();
        assertEquals(arr, dup);
    }

    @ParameterizedTest
    @MethodSource("org.nd4j.linalg.BaseNd4jTestWithBackends#configs")
    public void testDup(Nd4jBackend backend) {

        for (int x = 0; x < 100; x++) {
            INDArray orig = Nd4j.linspace(1, 4, 4);
            INDArray dup = orig.dup();
            assertEquals(orig, dup);

            INDArray matrix = Nd4j.create(new float[] {1, 2, 3, 4}, new int[] {2, 2});
            INDArray dup2 = matrix.dup();
            assertEquals(matrix, dup2);

            INDArray row1 = matrix.getRow(1);
            INDArray dupRow = row1.dup();
            assertEquals(row1, dupRow);


            INDArray columnSorted = Nd4j.create(new float[] {2, 1, 4, 3}, new int[] {2, 2});
            INDArray dup3 = columnSorted.dup();
            assertEquals(columnSorted, dup3);
        }
    }

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