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2025-02-12 ea42ff3ebee1eeb3fb29423aa848a249441db81c
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/**
 * @license
 * Copyright 2018 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';
import { tensor1d, tensor2d, tensor3d } from './ops';
describeWithFlags('inTopKAsync', ALL_ENVS, async () => {
    it('predictions 2d array, targets 1d array, with default k', async () => {
        const predictions = tensor2d([[20, 10, 40, 30], [30, 50, -20, 10]]);
        const targets = tensor1d([2, 0]);
        const precision = await tf.inTopKAsync(predictions, targets);
        expect(precision.shape).toEqual([2]);
        expect(precision.dtype).toBe('bool');
        expectArraysClose(await precision.data(), [1, 0]);
    });
    it('predictions 2d array, targets 1d array, with k=2', async () => {
        const predictions = tensor2d([[20, 10, 40, 30], [30, 50, -20, 10]]);
        const targets = tensor1d([2, 0]);
        const k = 2;
        const precision = await tf.inTopKAsync(predictions, targets, k);
        expect(precision.shape).toEqual([2]);
        expect(precision.dtype).toBe('bool');
        expectArraysClose(await precision.data(), [1, 1]);
    });
    it('predictions 3d array, targets 2d array, with default k', async () => {
        const predictions = tensor3d([[[1, 5, 2], [4, 3, 6]], [[3, 2, 1], [1, 2, 3]]]);
        const targets = tensor2d([[1, 2], [0, 1]]);
        const precision = await tf.inTopKAsync(predictions, targets);
        expect(precision.shape).toEqual([2, 2]);
        expect(precision.dtype).toBe('bool');
        expectArraysClose(await precision.data(), [1, 1, 1, 0]);
    });
    it('predictions 3d array, targets 2d array, with k=2', async () => {
        const predictions = tensor3d([[[1, 5, 2], [4, 3, 6]], [[3, 2, 1], [1, 2, 3]]]);
        const targets = tensor2d([[1, 2], [0, 1]]);
        const k = 2;
        const precision = await tf.inTopKAsync(predictions, targets, k);
        expect(precision.shape).toEqual([2, 2]);
        expect(precision.dtype).toBe('bool');
        expectArraysClose(await precision.data(), [1, 1, 1, 1]);
    });
    it('lower-index element count first, with default k', async () => {
        const predictions = tensor2d([[1, 2, 2, 1]]);
        const targets1 = tensor1d([1]);
        const precision1 = await tf.inTopKAsync(predictions, targets1);
        expect(precision1.shape).toEqual([1]);
        expect(precision1.dtype).toBe('bool');
        expectArraysClose(await precision1.data(), [1]);
        const targets2 = tensor1d([2]);
        const precision2 = await tf.inTopKAsync(predictions, targets2);
        expect(precision2.shape).toEqual([1]);
        expect(precision2.dtype).toBe('bool');
        expectArraysClose(await precision2.data(), [0]);
    });
    it('accept tensor-like object, with default k', async () => {
        const predictions = [[20, 10, 40, 30], [30, 50, -20, 10]];
        const targets = [2, 0];
        const precision = await tf.inTopKAsync(predictions, targets);
        expect(precision.shape).toEqual([2]);
        expect(precision.dtype).toBe('bool');
        expectArraysClose(await precision.data(), [1, 0]);
    });
    it('doesnt leak tensors with tensor-like objects', async () => {
        const numTensors = tf.memory().numTensors;
        const predictions = [[20, 10, 40, 30], [30, 50, -20, 10]];
        const targets = [2, 0];
        const precision = await tf.inTopKAsync(predictions, targets);
        precision.dispose();
        expect(tf.memory().numTensors).toBe(numTensors);
    });
    it('throws when predictions_rank <2', async () => {
        const predictions = tensor1d([20, 10, 40, 30]);
        const targets = [2];
        // expect(...).toThrowError() does not support async functions.
        // See https://github.com/jasmine/jasmine/issues/1410
        try {
            await tf.inTopKAsync(predictions, targets);
            throw new Error('The line above should have thrown an error');
        }
        catch (ex) {
            expect(ex.message)
                .toEqual('inTopK() expects the predictions to ' +
                'be of rank 2 or higher, but got 1');
        }
    });
    it('throws when prediction.rank != targets.rank + 1', async () => {
        const predictions = tensor2d([[20, 10, 40, 30], [30, 50, -20, 10]]);
        const targets = tensor2d([[0], [0]]);
        // expect(...).toThrowError() does not support async functions.
        // See https://github.com/jasmine/jasmine/issues/1410
        try {
            await tf.inTopKAsync(predictions, targets);
            throw new Error('The line above should have thrown an error');
        }
        catch (ex) {
            expect(ex.message)
                .toEqual('predictions rank should be 1 larger than targets rank,' +
                ' but got predictions rank 2 and targets rank 2');
        }
    });
    it('throws when k > size of last dimension of predictions', async () => {
        const predictions = tensor2d([[20, 10, 40, 30], [30, 50, -20, 10]]);
        const targets = tensor1d([2, 0]);
        const k = 5;
        // expect(...).toThrowError() does not support async functions.
        // See https://github.com/jasmine/jasmine/issues/1410
        try {
            await tf.inTopKAsync(predictions, targets, k);
            throw new Error('The line above should have thrown an error');
        }
        catch (ex) {
            expect(ex.message)
                .toEqual('\'k\' passed to inTopK() must be > 0 && <= the predictions ' +
                'last dimension (4), but got 5');
        }
    });
});
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* @license\n * Copyright 2018 Google LLC. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * =============================================================================\n */\n\nimport * as tf from '../index';\nimport {ALL_ENVS, describeWithFlags} from '../jasmine_util';\nimport {expectArraysClose} from '../test_util';\n\nimport {tensor1d, tensor2d, tensor3d} from './ops';\n\ndescribeWithFlags('inTopKAsync', ALL_ENVS, async () => {\n  it('predictions 2d array, targets 1d array, with default k', async () => {\n    const predictions = tensor2d([[20, 10, 40, 30], [30, 50, -20, 10]]);\n    const targets = tensor1d([2, 0]);\n    const precision = await tf.inTopKAsync(predictions, targets);\n    expect(precision.shape).toEqual([2]);\n    expect(precision.dtype).toBe('bool');\n    expectArraysClose(await precision.data(), [1, 0]);\n  });\n\n  it('predictions 2d array, targets 1d array, with k=2', async () => {\n    const predictions = tensor2d([[20, 10, 40, 30], [30, 50, -20, 10]]);\n    const targets = tensor1d([2, 0]);\n    const k = 2;\n    const precision = await tf.inTopKAsync(predictions, targets, k);\n    expect(precision.shape).toEqual([2]);\n    expect(precision.dtype).toBe('bool');\n    expectArraysClose(await precision.data(), [1, 1]);\n  });\n\n  it('predictions 3d array, targets 2d array, with default k', async () => {\n    const predictions =\n        tensor3d([[[1, 5, 2], [4, 3, 6]], [[3, 2, 1], [1, 2, 3]]]);\n    const targets = tensor2d([[1, 2], [0, 1]]);\n    const precision = await tf.inTopKAsync(predictions, targets);\n    expect(precision.shape).toEqual([2, 2]);\n    expect(precision.dtype).toBe('bool');\n    expectArraysClose(await precision.data(), [1, 1, 1, 0]);\n  });\n\n  it('predictions 3d array, targets 2d array, with k=2', async () => {\n    const predictions =\n        tensor3d([[[1, 5, 2], [4, 3, 6]], [[3, 2, 1], [1, 2, 3]]]);\n    const targets = tensor2d([[1, 2], [0, 1]]);\n    const k = 2;\n    const precision = await tf.inTopKAsync(predictions, targets, k);\n    expect(precision.shape).toEqual([2, 2]);\n    expect(precision.dtype).toBe('bool');\n    expectArraysClose(await precision.data(), [1, 1, 1, 1]);\n  });\n\n  it('lower-index element count first, with default k', async () => {\n    const predictions = tensor2d([[1, 2, 2, 1]]);\n\n    const targets1 = tensor1d([1]);\n    const precision1 = await tf.inTopKAsync(predictions, targets1);\n    expect(precision1.shape).toEqual([1]);\n    expect(precision1.dtype).toBe('bool');\n    expectArraysClose(await precision1.data(), [1]);\n\n    const targets2 = tensor1d([2]);\n    const precision2 = await tf.inTopKAsync(predictions, targets2);\n    expect(precision2.shape).toEqual([1]);\n    expect(precision2.dtype).toBe('bool');\n    expectArraysClose(await precision2.data(), [0]);\n  });\n\n  it('accept tensor-like object, with default k', async () => {\n    const predictions = [[20, 10, 40, 30], [30, 50, -20, 10]];\n    const targets = [2, 0];\n    const precision = await tf.inTopKAsync(predictions, targets);\n    expect(precision.shape).toEqual([2]);\n    expect(precision.dtype).toBe('bool');\n    expectArraysClose(await precision.data(), [1, 0]);\n  });\n\n  it('doesnt leak tensors with tensor-like objects', async () => {\n    const numTensors = tf.memory().numTensors;\n\n    const predictions = [[20, 10, 40, 30], [30, 50, -20, 10]];\n    const targets = [2, 0];\n    const precision = await tf.inTopKAsync(predictions, targets);\n    precision.dispose();\n\n    expect(tf.memory().numTensors).toBe(numTensors);\n  });\n\n  it('throws when predictions_rank <2', async () => {\n    const predictions = tensor1d([20, 10, 40, 30]);\n    const targets = [2];\n\n    // expect(...).toThrowError() does not support async functions.\n    // See https://github.com/jasmine/jasmine/issues/1410\n    try {\n      await tf.inTopKAsync(predictions, targets);\n      throw new Error('The line above should have thrown an error');\n    } catch (ex) {\n      expect(ex.message)\n          .toEqual(\n              'inTopK() expects the predictions to ' +\n              'be of rank 2 or higher, but got 1');\n    }\n  });\n\n  it('throws when prediction.rank != targets.rank + 1', async () => {\n    const predictions = tensor2d([[20, 10, 40, 30], [30, 50, -20, 10]]);\n    const targets = tensor2d([[0], [0]]);\n\n    // expect(...).toThrowError() does not support async functions.\n    // See https://github.com/jasmine/jasmine/issues/1410\n    try {\n      await tf.inTopKAsync(predictions, targets);\n      throw new Error('The line above should have thrown an error');\n    } catch (ex) {\n      expect(ex.message)\n          .toEqual(\n              'predictions rank should be 1 larger than targets rank,' +\n              ' but got predictions rank 2 and targets rank 2');\n    }\n  });\n\n  it('throws when k > size of last dimension of predictions', async () => {\n    const predictions = tensor2d([[20, 10, 40, 30], [30, 50, -20, 10]]);\n    const targets = tensor1d([2, 0]);\n    const k = 5;\n\n    // expect(...).toThrowError() does not support async functions.\n    // See https://github.com/jasmine/jasmine/issues/1410\n    try {\n      await tf.inTopKAsync(predictions, targets, k);\n      throw new Error('The line above should have thrown an error');\n    } catch (ex) {\n      expect(ex.message)\n          .toEqual(\n              '\\'k\\' passed to inTopK() must be > 0 && <= the predictions ' +\n              'last dimension (4), but got 5');\n    }\n  });\n});\n"]}