tracing/tracing/base/piecewise_linear_function_test.html - Issue 2771723003: [tracing] Move math utilities from base into their own subdirectory (attempt 2)

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Issue 2771723003: [tracing] Move math utilities from base into their own subdirectory (attempt 2) (Closed)

Patch Set: rebase Created 3 years, 9 months ago

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1 <!DOCTYPE html>

2 <!--

3 Copyright 2016 The Chromium Authors. All rights reserved.

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

5 found in the LICENSE file.

6 -->

7

8 <link rel="import" href="/tracing/base/piecewise_linear_function.html">

9

10 <script>

11 'use strict';

12

13 tr.b.unittest.testSuite(function() {

14 test('PiecewiseLinearFunctionEmpty', function() {

15 var f = new tr.b.PiecewiseLinearFunction();

16 assert.strictEqual(f.max, -Infinity);

17 assert.strictEqual(f.min, Infinity);

18 assert.strictEqual(f.average, 0);

19 assert.strictEqual(f.percentile(0.5), 0);

20 });

21

22 test('PiecewiseLinearFunction', function() {

23 var f = new tr.b.PiecewiseLinearFunction();

24 f.push(0, 0.0, 10, 1.0);

25 f.push(10, 1.0, 20, 0.0);

26 f.push(20, 0.0, 30, 0.0);

27 assert.strictEqual(f.max, 1.0);

28 assert.strictEqual(f.min, 0.0);

29 assert.closeTo(f.average, 20 * 1 / 2.0 / 30, 1e-6);

30 assert.closeTo(f.percentile(1.0 / 3.0), 0.0, 1e-6);

31 assert.closeTo(f.percentile(2.0 / 3.0), 0.5, 1e-6);

32 });

33 });

34 </script>

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