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 *  * terms of the Apache License, Version 2.0 which is available at
 *  * https://www.apache.org/licenses/LICENSE-2.0.
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 *  *  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
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package org.eclipse.deeplearning4j.nd4j.linalg.util;

import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;
import org.nd4j.common.base.Preconditions;
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 org.nd4j.linalg.indexing.NDArrayIndex;

import java.util.Arrays;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.fail;
@NativeTag
public class PreconditionsTest extends BaseNd4jTestWithBackends {

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

        INDArray arr = Nd4j.linspace(1,60,60).reshape('c',3,4,5);

        try{
            Preconditions.checkArgument(false, "Shape is: %ndShape with rank %ndRank", arr, arr);
            fail("Expected exception");
        } catch (Throwable t){
            assertEquals("Shape is: [3, 4, 5] with rank 3", t.getMessage());
        }

        try{

            Preconditions.checkArgument(false, "Stride is: %ndStride with shape info %ndSInfo", arr, arr);
            fail("Expected exception");
        } catch (Throwable t){
            String si = arr.shapeInfoToString().replaceAll("\n","");
            assertEquals("Stride is: " + Arrays.toString(arr.stride()) + " with shape info " + si, t.getMessage());
        }

        INDArray asVector = arr.reshape(arr.length());
        try{
            Preconditions.checkArgument(false, "First 10: %nd10", arr);
            fail("Expected exception");
        } catch (Throwable t){
            INDArray get10 = asVector.get(NDArrayIndex.interval(0, 10));
            assertEquals("First 10: " + get10, t.getMessage());
        }

    }


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

}
