1// Copyright (C) 2022 The Android Open Source Project 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15import {RunningStatistics} from './perf'; 16 17test('buffer size is accurate before reaching max capacity', () => { 18 const buf = new RunningStatistics(10); 19 20 for (let i = 0; i < 10; i++) { 21 buf.addValue(i); 22 expect(buf.bufferSize).toEqual(i + 1); 23 } 24}); 25 26test('buffer size is accurate after reaching max capacity', () => { 27 const buf = new RunningStatistics(10); 28 29 for (let i = 0; i < 10; i++) { 30 buf.addValue(i); 31 } 32 33 for (let i = 0; i < 10; i++) { 34 buf.addValue(i); 35 expect(buf.bufferSize).toEqual(10); 36 } 37}); 38 39test('buffer mean is accurate before reaching max capacity', () => { 40 const buf = new RunningStatistics(10); 41 42 buf.addValue(1); 43 buf.addValue(2); 44 buf.addValue(3); 45 46 expect(buf.bufferMean).toBeCloseTo(2); 47}); 48 49test('buffer mean is accurate after reaching max capacity', () => { 50 const buf = new RunningStatistics(10); 51 52 for (let i = 0; i < 20; i++) { 53 buf.addValue(2); 54 } 55 56 expect(buf.bufferMean).toBeCloseTo(2); 57}); 58