@tensorflow/tfjs-core
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Hardware-accelerated JavaScript library for machine intelligence
146 lines • 22.4 kB
JavaScript
/**
* @license
* Copyright 2019 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 non_max_suppression_util from './non_max_suppression_util';
describe('non_max_suppression_util', () => {
const insertionPoint = (i) => -(i + 1);
describe('binarySearch', () => {
const d = [
-897123.9, -321434.58758, -1321.3124, -324, -9, -3, 0, 0, 0, 0.31255, 5,
142.88888708, 334, 342, 453, 54254
];
it('-897123.9 should be found at index 0', () => {
const result = non_max_suppression_util.binarySearch(d, -897123.9);
expect(result).toBe(0);
});
it(`54254 should be found at index ${d.length - 1}`, () => {
const result = non_max_suppression_util.binarySearch(d, 54254);
expect(result).toBe(d.length - 1);
});
it('-3 should be found at index 5', () => {
const result = non_max_suppression_util.binarySearch(d, -3);
expect(result).toBe(5);
});
it('0 should be found at index 6', () => {
const result = non_max_suppression_util.binarySearch(d, 0);
expect(result).toBe(6);
});
it('-900000 should have an insertion point of 0', () => {
const result = non_max_suppression_util.binarySearch(d, -900000);
expect(result).toBeLessThan(0);
expect(insertionPoint(result)).toBe(0);
});
it(`54255 should have an insertion point of ${d.length}`, () => {
const result = non_max_suppression_util.binarySearch(d, 54255);
expect(result).toBeLessThan(0);
expect(insertionPoint(result)).toEqual(d.length);
});
it('1.1 should have an insertion point of 10', () => {
const result = non_max_suppression_util.binarySearch(d, 1.1);
expect(result).toBeLessThan(0);
expect(insertionPoint(result)).toEqual(10);
});
});
describe('binarySearch with custom comparator', () => {
const e = [
54254,
453,
342,
334,
142.88888708,
5,
0.31255,
0,
0,
0,
-3,
-9,
-324,
-1321.3124,
-321434.58758,
-897123.9,
];
const revComparator = (a, b) => (b - a);
it('54254 should be found at index 0', () => {
const result = non_max_suppression_util.binarySearch(e, 54254, revComparator);
expect(result).toBe(0);
});
it(`-897123.9 should be found at index ${e.length - 1}`, () => {
const result = non_max_suppression_util.binarySearch(e, -897123.9, revComparator);
expect(result).toBe(e.length - 1);
});
it('-3 should be found at index 10', () => {
const result = non_max_suppression_util.binarySearch(e, -3, revComparator);
expect(result).toBe(10);
});
it('0 should be found at index 7', () => {
const result = non_max_suppression_util.binarySearch(e, 0, revComparator);
expect(result).toBe(7);
});
it('54254.1 should have an insertion point of 0', () => {
const result = non_max_suppression_util.binarySearch(e, 54254.1, revComparator);
expect(result).toBeLessThan(0);
expect(insertionPoint(result)).toBe(0);
});
it(`-897124 should have an insertion point of ${e.length}`, () => {
const result = non_max_suppression_util.binarySearch(e, -897124, revComparator);
expect(result).toBeLessThan(0);
expect(insertionPoint(result)).toBe(e.length);
});
});
describe('binarySearch with custom comparator with single element array', () => {
const g = [1];
const revComparator = (a, b) => (b - a);
it('1 should be found at index 0', () => {
const result = non_max_suppression_util.binarySearch(g, 1, revComparator);
expect(result).toBe(0);
});
it('2 should have an insertion point of 0', () => {
const result = non_max_suppression_util.binarySearch(g, 2, revComparator);
expect(result).toBeLessThan(0);
expect(insertionPoint(result)).toBe(0);
});
it('0 should have an insertion point of 1', () => {
const result = non_max_suppression_util.binarySearch(g, 0, revComparator);
expect(result).toBeLessThan(0);
expect(insertionPoint(result)).toBe(1);
});
});
describe('binarySearch test left-most duplicated element', () => {
it('should find the index of the first 0', () => {
const result = non_max_suppression_util.binarySearch([0, 0, 1], 0);
expect(result).toBe(0);
});
it('should find the index of the first 1', () => {
const result = non_max_suppression_util.binarySearch([0, 1, 1], 1);
expect(result).toBe(1);
});
});
describe('binaryInsert', () => {
it('inserts correctly', () => {
const a = [];
non_max_suppression_util.binaryInsert(a, 3);
expect(a).toEqual([3]);
non_max_suppression_util.binaryInsert(a, 3);
expect(a).toEqual([3, 3]);
non_max_suppression_util.binaryInsert(a, 1);
expect(a).toEqual([1, 3, 3]);
non_max_suppression_util.binaryInsert(a, 5);
expect(a).toEqual([1, 3, 3, 5]);
});
});
});
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* @license\n * Copyright 2019 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 non_max_suppression_util from './non_max_suppression_util';\n\ndescribe('non_max_suppression_util', () => {\n  const insertionPoint = (i: number) => -(i + 1);\n\n  describe('binarySearch', () => {\n    const d = [\n      -897123.9, -321434.58758, -1321.3124, -324, -9, -3, 0, 0, 0, 0.31255, 5,\n      142.88888708, 334, 342, 453, 54254\n    ];\n\n    it('-897123.9 should be found at index 0', () => {\n      const result = non_max_suppression_util.binarySearch(d, -897123.9);\n      expect(result).toBe(0);\n    });\n\n    it(`54254 should be found at index ${d.length - 1}`, () => {\n      const result = non_max_suppression_util.binarySearch(d, 54254);\n      expect(result).toBe(d.length - 1);\n    });\n\n    it('-3 should be found at index 5', () => {\n      const result = non_max_suppression_util.binarySearch(d, -3);\n      expect(result).toBe(5);\n    });\n\n    it('0 should be found at index 6', () => {\n      const result = non_max_suppression_util.binarySearch(d, 0);\n      expect(result).toBe(6);\n    });\n\n    it('-900000 should have an insertion point of 0', () => {\n      const result = non_max_suppression_util.binarySearch(d, -900000);\n      expect(result).toBeLessThan(0);\n      expect(insertionPoint(result)).toBe(0);\n    });\n\n    it(`54255 should have an insertion point of ${d.length}`, () => {\n      const result = non_max_suppression_util.binarySearch(d, 54255);\n      expect(result).toBeLessThan(0);\n      expect(insertionPoint(result)).toEqual(d.length);\n    });\n\n    it('1.1 should have an insertion point of 10', () => {\n      const result = non_max_suppression_util.binarySearch(d, 1.1);\n      expect(result).toBeLessThan(0);\n      expect(insertionPoint(result)).toEqual(10);\n    });\n  });\n\n  describe('binarySearch with custom comparator', () => {\n    const e = [\n      54254,\n      453,\n      342,\n      334,\n      142.88888708,\n      5,\n      0.31255,\n      0,\n      0,\n      0,\n      -3,\n      -9,\n      -324,\n      -1321.3124,\n      -321434.58758,\n      -897123.9,\n    ];\n\n    const revComparator = (a: number, b: number) => (b - a);\n\n    it('54254 should be found at index 0', () => {\n      const result =\n          non_max_suppression_util.binarySearch(e, 54254, revComparator);\n      expect(result).toBe(0);\n    });\n\n    it(`-897123.9 should be found at index ${e.length - 1}`, () => {\n      const result =\n          non_max_suppression_util.binarySearch(e, -897123.9, revComparator);\n      expect(result).toBe(e.length - 1);\n    });\n\n    it('-3 should be found at index 10', () => {\n      const result =\n          non_max_suppression_util.binarySearch(e, -3, revComparator);\n      expect(result).toBe(10);\n    });\n\n    it('0 should be found at index 7', () => {\n      const result = non_max_suppression_util.binarySearch(e, 0, revComparator);\n      expect(result).toBe(7);\n    });\n\n    it('54254.1 should have an insertion point of 0', () => {\n      const result =\n          non_max_suppression_util.binarySearch(e, 54254.1, revComparator);\n      expect(result).toBeLessThan(0);\n      expect(insertionPoint(result)).toBe(0);\n    });\n\n    it(`-897124 should have an insertion point of ${e.length}`, () => {\n      const result =\n          non_max_suppression_util.binarySearch(e, -897124, revComparator);\n      expect(result).toBeLessThan(0);\n      expect(insertionPoint(result)).toBe(e.length);\n    });\n  });\n\n  describe(\n      'binarySearch with custom comparator with single element array', () => {\n        const g = [1];\n\n        const revComparator = (a: number, b: number) => (b - a);\n\n        it('1 should be found at index 0', () => {\n          const result =\n              non_max_suppression_util.binarySearch(g, 1, revComparator);\n          expect(result).toBe(0);\n        });\n\n        it('2 should have an insertion point of 0', () => {\n          const result =\n              non_max_suppression_util.binarySearch(g, 2, revComparator);\n          expect(result).toBeLessThan(0);\n          expect(insertionPoint(result)).toBe(0);\n        });\n\n        it('0 should have an insertion point of 1', () => {\n          const result =\n              non_max_suppression_util.binarySearch(g, 0, revComparator);\n          expect(result).toBeLessThan(0);\n          expect(insertionPoint(result)).toBe(1);\n        });\n      });\n\n  describe('binarySearch test left-most duplicated element', () => {\n    it('should find the index of the first 0', () => {\n      const result = non_max_suppression_util.binarySearch([0, 0, 1], 0);\n      expect(result).toBe(0);\n    });\n\n    it('should find the index of the first 1', () => {\n      const result = non_max_suppression_util.binarySearch([0, 1, 1], 1);\n      expect(result).toBe(1);\n    });\n  });\n\n  describe('binaryInsert', () => {\n    it('inserts correctly', () => {\n      const a: number[] = [];\n\n      non_max_suppression_util.binaryInsert(a, 3);\n      expect(a).toEqual([3]);\n\n      non_max_suppression_util.binaryInsert(a, 3);\n      expect(a).toEqual([3, 3]);\n\n      non_max_suppression_util.binaryInsert(a, 1);\n      expect(a).toEqual([1, 3, 3]);\n\n      non_max_suppression_util.binaryInsert(a, 5);\n      expect(a).toEqual([1, 3, 3, 5]);\n    });\n  });\n});\n"]}