@tensorflow/tfjs-core
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Hardware-accelerated JavaScript library for machine intelligence
46 lines • 2 kB
JavaScript
/**
* @license
* Copyright 2017 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('reverse', ALL_ENVS, () => {
it('throws when passed a non-tensor', () => {
expect(() => tf.reverse({}))
.toThrowError(/Argument 'x' passed to 'reverse' must be a Tensor/);
});
it('accepts a tensor-like object', async () => {
const input = [1, 2, 3];
const result = tf.reverse(input);
expect(result.shape).toEqual([3]);
expectArraysClose(await result.data(), [3, 2, 1]);
});
it('ensure no memory leak', async () => {
const numTensorsBefore = tf.memory().numTensors;
const numDataIdBefore = tf.engine().backend.numDataIds();
const input = tf.tensor1d([1, 2, 3]);
const result = tf.reverse(input);
expect(result.shape).toEqual([3]);
expectArraysClose(await result.data(), [3, 2, 1]);
input.dispose();
result.dispose();
const numTensorsAfter = tf.memory().numTensors;
const numDataIdAfter = tf.engine().backend.numDataIds();
expect(numTensorsAfter).toBe(numTensorsBefore);
expect(numDataIdAfter).toBe(numDataIdBefore);
});
});
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