68 lines
2.1 KiB
Java
68 lines
2.1 KiB
Java
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/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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package org.deeplearning4j.util;
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import org.deeplearning4j.BaseDL4JTest;
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import org.junit.Test;
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import org.nd4j.linalg.util.ArrayUtil;
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import java.util.Arrays;
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import static org.junit.Assert.assertEquals;
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/**
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*
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*/
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public class ArrayUtilTest extends BaseDL4JTest {
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@Test
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public void testRange() {
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int[] range = ArrayUtil.range(0, 2);
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int[] test = {0, 1};
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assertEquals(true, Arrays.equals(test, range));
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int[] test2 = {-1, 0};
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int[] range2 = ArrayUtil.range(-1, 1);
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assertEquals(true, Arrays.equals(test2, range2));
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}
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@Test
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public void testStrides() {
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int[] shape = {5, 4, 3};
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int[] cStyleStride = {12, 3, 1};
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int[] fortranStyleStride = {1, 5, 20};
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int[] fortranStyleTest = ArrayUtil.calcStridesFortran(shape);
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int[] cStyleTest = ArrayUtil.calcStrides(shape);
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assertEquals(true, Arrays.equals(cStyleStride, cStyleTest));
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assertEquals(true, Arrays.equals(fortranStyleStride, fortranStyleTest));
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int[] shape2 = {2, 2};
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int[] cStyleStride2 = {2, 1};
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int[] fortranStyleStride2 = {1, 2};
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int[] cStyleTest2 = ArrayUtil.calcStrides(shape2);
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int[] fortranStyleTest2 = ArrayUtil.calcStridesFortran(shape2);
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assertEquals(true, Arrays.equals(cStyleStride2, cStyleTest2));
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assertEquals(true, Arrays.equals(fortranStyleStride2, fortranStyleTest2));
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}
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}
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