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| /**
| * @license
| * Copyright 2020 Google LLC. All Rights Reserved.
| * Licensed under the Apache License, Version 2.0 (the "License");
| * you may not use this file except in compliance with the License.
| * You may obtain a copy of the License at
| *
| * http://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.
| * =============================================================================
| */
| import * as tf from '../index';
| import { ALL_ENVS, describeWithFlags } from '../jasmine_util';
| import { expectArraysClose } from '../test_util';
| describeWithFlags('slice4d', ALL_ENVS, () => {
| it('slices 1x1x1x1 into shape 1x1x1x1 (effectively a copy)', async () => {
| const a = tf.tensor4d([[[[5]]]], [1, 1, 1, 1]);
| const result = tf.slice4d(a, [0, 0, 0, 0], [1, 1, 1, 1]);
| expect(result.shape).toEqual([1, 1, 1, 1]);
| expectArraysClose(await result.data(), [5]);
| });
| it('slices 2x2x2x2 array into 1x2x2x2 starting at [1, 0, 0, 0]', async () => {
| const a = tf.tensor4d([1, 2, 3, 4, 5, 6, 7, 8, 11, 22, 33, 44, 55, 66, 77, 88], [2, 2, 2, 2]);
| const result = tf.slice4d(a, [1, 0, 0, 0], [1, 2, 2, 2]);
| expect(result.shape).toEqual([1, 2, 2, 2]);
| expectArraysClose(await result.data(), [11, 22, 33, 44, 55, 66, 77, 88]);
| });
| it('slices 2x2x2x2 array into 2x1x1x1 starting at [0, 1, 1, 1]', async () => {
| const a = tf.tensor4d([1, 2, 3, 4, 5, 6, 7, 8, 11, 22, 33, 44, 55, 66, 77, 88], [2, 2, 2, 2]);
| const result = tf.slice4d(a, [0, 1, 1, 1], [2, 1, 1, 1]);
| expect(result.shape).toEqual([2, 1, 1, 1]);
| expectArraysClose(await result.data(), [8, 88]);
| });
| it('accepts a tensor-like object', async () => {
| const a = [[[[5]]]]; // 1x1x1x1
| const result = tf.slice4d(a, [0, 0, 0, 0], [1, 1, 1, 1]);
| expect(result.shape).toEqual([1, 1, 1, 1]);
| expectArraysClose(await result.data(), [5]);
| });
| });
| //# 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