tracing/tracing/base/statistics_test.html - Issue 2364243002: Serialize Histograms more efficiently.

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Issue 2364243002: Serialize Histograms more efficiently. (Closed)

Patch Set: . Created 4 years, 2 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <!--	2 <!--

3 Copyright (c) 2014 The Chromium Authors. All rights reserved.	3 Copyright (c) 2014 The Chromium Authors. All rights reserved.

4 Use of this source code is governed by a BSD-style license that can be	4 Use of this source code is governed by a BSD-style license that can be

5 found in the LICENSE file.	5 found in the LICENSE file.

6 -->	6 -->

7 <link rel="import" href="/tracing/base/statistics.html">	7 <link rel="import" href="/tracing/base/statistics.html">

8 <script>	8 <script>

9 'use strict';	9 'use strict';

10	10

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462 var durationsC = [1, 2, 1, 2, 1];	462 var durationsC = [1, 2, 1, 2, 1];

463	463

464 var dA = Statistics.durationsDiscrepancy(durationsA);	464 var dA = Statistics.durationsDiscrepancy(durationsA);

465 var dB = Statistics.durationsDiscrepancy(durationsB);	465 var dB = Statistics.durationsDiscrepancy(durationsB);

466 var dC = Statistics.durationsDiscrepancy(durationsC);	466 var dC = Statistics.durationsDiscrepancy(durationsC);

467	467

468 assert.isBelow(dA, dB);	468 assert.isBelow(dA, dB);

469 assert.isBelow(dB, dC);	469 assert.isBelow(dB, dC);

470 });	470 });

471	471

	472 test('uniformlySampleArray', function() {

	473 var samples = ['A', 'B', 'C', 'D', 'E'];

	474 for (var i = samples.length; i >= 0; --i) {

	475 Statistics.uniformlySampleArray(samples, i);

	476 assert.lengthOf(samples, i);

	477 }

	478 });

	479

472 test('uniformlySampleStream', function() {	480 test('uniformlySampleStream', function() {

473 var samples = [];	481 var samples = [];

474 Statistics.uniformlySampleStream(samples, 1, 'A', 5);	482 Statistics.uniformlySampleStream(samples, 1, 'A', 5);

475 assert.deepEqual(['A'], samples);	483 assert.deepEqual(['A'], samples);

476 Statistics.uniformlySampleStream(samples, 2, 'B', 5);	484 Statistics.uniformlySampleStream(samples, 2, 'B', 5);

477 Statistics.uniformlySampleStream(samples, 3, 'C', 5);	485 Statistics.uniformlySampleStream(samples, 3, 'C', 5);

478 Statistics.uniformlySampleStream(samples, 4, 'D', 5);	486 Statistics.uniformlySampleStream(samples, 4, 'D', 5);

479 Statistics.uniformlySampleStream(samples, 5, 'E', 5);	487 Statistics.uniformlySampleStream(samples, 5, 'E', 5);

480 assert.deepEqual(['A', 'B', 'C', 'D', 'E'], samples);	488 assert.deepEqual(['A', 'B', 'C', 'D', 'E'], samples);

481	489

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558 // Empty samples should not be comparable.	566 // Empty samples should not be comparable.

559 results = Statistics.mwu(emptySample, emptySample);	567 results = Statistics.mwu(emptySample, emptySample);

560 assert(isNaN(results.p));	568 assert(isNaN(results.p));

561	569

562 // The result of comparing a sample against an empty sample should not be a	570 // The result of comparing a sample against an empty sample should not be a

563 // valid p value. NOTE: The current implementation returns 0, it is up to	571 // valid p value. NOTE: The current implementation returns 0, it is up to

564 // the caller to interpret this.	572 // the caller to interpret this.

565 results = Statistics.mwu(normallyDistributedSample, emptySample);	573 results = Statistics.mwu(normallyDistributedSample, emptySample);

566 assert(!results.p);	574 assert(!results.p);

567 });	575 });

568

569 });	576 });

570 </script>	577 </script>

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