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// Copyright (C) 2023 The Android Open Source Project
//
// 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 {
HighPrecisionTime as HPTime,
HighPrecisionTimeSpan as HPTimeSpan,
} from './high_precision_time';
import {TPTime} from './time';
// Quick 'n' dirty function to convert a string to a HPtime
// Used to make tests more readable
// E.g. '1.3' -> {base: 1, offset: 0.3}
// E.g. '-0.3' -> {base: -1, offset: 0.7}
function mkTime(time: string): HPTime {
const array = time.split('.');
if (array.length > 2) throw new Error(`Bad time format ${time}`);
const [base, fractions] = array;
const negative = time.startsWith('-');
const numBase = BigInt(base);
if (fractions) {
const numFractions = Number(`0.${fractions}`);
if (negative) {
return new HPTime(numBase - 1n, 1.0 - numFractions);
} else {
return new HPTime(numBase, numFractions);
}
} else {
return new HPTime(numBase);
}
}
function mkSpan(t1: string, t2: string): HPTimeSpan {
return new HPTimeSpan(mkTime(t1), mkTime(t2));
}
describe('Time', () => {
it('should create a new Time object with the given base and offset', () => {
const time = new HPTime(136n, 0.3);
expect(time.base).toBe(136n);
expect(time.offset).toBeCloseTo(0.3);
});
it('should normalize when offset is >= 1', () => {
let time = new HPTime(1n, 2.3);
expect(time.base).toBe(3n);
expect(time.offset).toBeCloseTo(0.3);
time = new HPTime(1n, 1);
expect(time.base).toBe(2n);
expect(time.offset).toBeCloseTo(0);
});
it('should normalize when offset is < 0', () => {
const time = new HPTime(1n, -0.4);
expect(time.base).toBe(0n);
expect(time.offset).toBeCloseTo(0.6);
});
it('should store timestamps without losing precision', () => {
let time = HPTime.fromTPTime(123n as TPTime);
expect(time.toTPTime()).toBe(123n as TPTime);
time = HPTime.fromTPTime(1152921504606846976n as TPTime);
expect(time.toTPTime()).toBe(1152921504606846976n as TPTime);
});
it('should store and manipulate timestamps without losing precision', () => {
let time = HPTime.fromTPTime(123n as TPTime);
time = time.addTPTime(456n);
expect(time.toTPTime()).toBe(579n);
time = HPTime.fromTPTime(2315700508990407843n as TPTime);
time = time.addTPTime(2315718101717517451n as TPTime);
expect(time.toTPTime()).toBe(4631418610707925294n);
});
it('should add time', () => {
const time1 = mkTime('1.3');
const time2 = mkTime('3.1');
const result = time1.add(time2);
expect(result.base).toEqual(4n);
expect(result.offset).toBeCloseTo(0.4);
});
it('should subtract time', () => {
const time1 = mkTime('3.1');
const time2 = mkTime('1.3');
const result = time1.subtract(time2);
expect(result.base).toEqual(1n);
expect(result.offset).toBeCloseTo(0.8);
});
it('should add nanoseconds', () => {
const time = mkTime('1.3');
const result = time.addNanos(0.8);
expect(result.base).toEqual(2n);
expect(result.offset).toBeCloseTo(0.1);
});
it('should add seconds', () => {
const time = mkTime('1.3');
const result = time.addSeconds(0.008);
expect(result.base).toEqual(8000001n);
expect(result.offset).toBeCloseTo(0.3);
});
it('should perform gt comparisions', () => {
const time = mkTime('1.2');
expect(time.isGreaterThanOrEqual(mkTime('0.5'))).toBeTruthy();
expect(time.isGreaterThanOrEqual(mkTime('1.1'))).toBeTruthy();
expect(time.isGreaterThanOrEqual(mkTime('1.2'))).toBeTruthy();
expect(time.isGreaterThanOrEqual(mkTime('1.5'))).toBeFalsy();
expect(time.isGreaterThanOrEqual(mkTime('5.5'))).toBeFalsy();
});
it('should perform gte comparisions', () => {
const time = mkTime('1.2');
expect(time.isGreaterThan(mkTime('0.5'))).toBeTruthy();
expect(time.isGreaterThan(mkTime('1.1'))).toBeTruthy();
expect(time.isGreaterThan(mkTime('1.2'))).toBeFalsy();
expect(time.isGreaterThan(mkTime('1.5'))).toBeFalsy();
expect(time.isGreaterThan(mkTime('5.5'))).toBeFalsy();
});
it('should perform lt comparisions', () => {
const time = mkTime('1.2');
expect(time.isLessThan(mkTime('0.5'))).toBeFalsy();
expect(time.isLessThan(mkTime('1.1'))).toBeFalsy();
expect(time.isLessThan(mkTime('1.2'))).toBeFalsy();
expect(time.isLessThan(mkTime('1.5'))).toBeTruthy();
expect(time.isLessThan(mkTime('5.5'))).toBeTruthy();
});
it('should perform lte comparisions', () => {
const time = mkTime('1.2');
expect(time.isLessThanOrEqual(mkTime('0.5'))).toBeFalsy();
expect(time.isLessThanOrEqual(mkTime('1.1'))).toBeFalsy();
expect(time.isLessThanOrEqual(mkTime('1.2'))).toBeTruthy();
expect(time.isLessThanOrEqual(mkTime('1.5'))).toBeTruthy();
expect(time.isLessThanOrEqual(mkTime('5.5'))).toBeTruthy();
});
it('should detect equality', () => {
const time = new HPTime(1n, 0.2);
expect(time.equals(new HPTime(1n, 0.2))).toBeTruthy();
expect(time.equals(new HPTime(0n, 1.2))).toBeTruthy();
expect(time.equals(new HPTime(-100n, 101.2))).toBeTruthy();
expect(time.equals(new HPTime(1n, 0.3))).toBeFalsy();
expect(time.equals(new HPTime(2n, 0.2))).toBeFalsy();
});
it('should clamp a time to a range', () => {
const time1 = mkTime('1.2');
const time2 = mkTime('5.4');
const time3 = mkTime('2.8');
const lower = mkTime('2.3');
const upper = mkTime('4.5');
expect(time1.clamp(lower, upper)).toEqual(lower);
expect(time2.clamp(lower, upper)).toEqual(upper);
expect(time3.clamp(lower, upper)).toEqual(time3);
});
it('should convert to seconds', () => {
expect(new HPTime(1n, .2).seconds).toBeCloseTo(0.0000000012);
expect(new HPTime(1000000000n, .0).seconds).toBeCloseTo(1);
});
it('should convert to nanos', () => {
expect(new HPTime(1n, .2).nanos).toBeCloseTo(1.2);
expect(new HPTime(1000000000n, .0).nanos).toBeCloseTo(1e9);
});
it('should convert to timestamps', () => {
expect(new HPTime(1n, .2).toTPTime('round')).toBe(1n);
expect(new HPTime(1n, .5).toTPTime('round')).toBe(2n);
expect(new HPTime(1n, .2).toTPTime('floor')).toBe(1n);
expect(new HPTime(1n, .5).toTPTime('floor')).toBe(1n);
expect(new HPTime(1n, .2).toTPTime('ceil')).toBe(2n);
expect(new HPTime(1n, .5).toTPTime('ceil')).toBe(2n);
});
it('should divide', () => {
let result = mkTime('1').divide(2);
expect(result.base).toBe(0n);
expect(result.offset).toBeCloseTo(0.5);
result = mkTime('1.6').divide(2);
expect(result.base).toBe(0n);
expect(result.offset).toBeCloseTo(0.8);
result = mkTime('-0.5').divide(2);
expect(result.base).toBe(-1n);
expect(result.offset).toBeCloseTo(0.75);
result = mkTime('123.1').divide(123);
expect(result.base).toBe(1n);
expect(result.offset).toBeCloseTo(0.000813, 6);
});
it('should multiply', () => {
let result = mkTime('1').multiply(2);
expect(result.base).toBe(2n);
expect(result.offset).toBeCloseTo(0);
result = mkTime('1').multiply(2.5);
expect(result.base).toBe(2n);
expect(result.offset).toBeCloseTo(0.5);
result = mkTime('-0.5').multiply(2);
expect(result.base).toBe(-1n);
expect(result.offset).toBeCloseTo(0.0);
result = mkTime('123.1').multiply(25.5);
expect(result.base).toBe(3139n);
expect(result.offset).toBeCloseTo(0.05);
});
it('should convert to string', () => {
expect(mkTime('1.3').toString()).toBe('1.3');
expect(mkTime('12983423847.332533').toString()).toBe('12983423847.332533');
expect(new HPTime(234n).toString()).toBe('234');
});
});
describe('HighPrecisionTimeSpan', () => {
it('can be constructed from HP time', () => {
const span = new HPTimeSpan(mkTime('10'), mkTime('20'));
expect(span.start).toEqual(mkTime('10'));
expect(span.end).toEqual(mkTime('20'));
});
it('can be constructed from integer time', () => {
const span = new HPTimeSpan(10n, 20n);
expect(span.start).toEqual(mkTime('10'));
expect(span.end).toEqual(mkTime('20'));
});
it('throws when start is later than end', () => {
expect(() => new HPTimeSpan(mkTime('0.1'), mkTime('0'))).toThrow();
expect(() => new HPTimeSpan(mkTime('1124.0001'), mkTime('1124'))).toThrow();
});
it('can calc duration', () => {
let dur = mkSpan('10', '20').duration;
expect(dur.base).toBe(10n);
expect(dur.offset).toBeCloseTo(0);
dur = mkSpan('10.123', '20.456').duration;
expect(dur.base).toBe(10n);
expect(dur.offset).toBeCloseTo(0.333);
});
it('can calc midpoint', () => {
let mid = mkSpan('10', '20').midpoint;
expect(mid.base).toBe(15n);
expect(mid.offset).toBeCloseTo(0);
mid = mkSpan('10.25', '16.75').midpoint;
expect(mid.base).toBe(13n);
expect(mid.offset).toBeCloseTo(0.5);
});
it('can be compared', () => {
expect(mkSpan('0.1', '34.2').equals(mkSpan('0.1', '34.2'))).toBeTruthy();
expect(mkSpan('0.1', '34.5').equals(mkSpan('0.1', '34.2'))).toBeFalsy();
expect(mkSpan('0.9', '34.2').equals(mkSpan('0.1', '34.2'))).toBeFalsy();
});
it('checks if span contains another span', () => {
const x = mkSpan('10', '20');
expect(x.contains(mkTime('9'))).toBeFalsy();
expect(x.contains(mkTime('10'))).toBeTruthy();
expect(x.contains(mkTime('15'))).toBeTruthy();
expect(x.contains(mkTime('20'))).toBeFalsy();
expect(x.contains(mkTime('21'))).toBeFalsy();
expect(x.contains(mkSpan('12', '18'))).toBeTruthy();
expect(x.contains(mkSpan('5', '25'))).toBeFalsy();
expect(x.contains(mkSpan('5', '15'))).toBeFalsy();
expect(x.contains(mkSpan('15', '25'))).toBeFalsy();
expect(x.contains(mkSpan('0', '10'))).toBeFalsy();
expect(x.contains(mkSpan('20', '30'))).toBeFalsy();
});
it('checks if span intersects another span', () => {
const x = mkSpan('10', '20');
expect(x.intersects(mkSpan('0', '10'))).toBeFalsy();
expect(x.intersects(mkSpan('5', '15'))).toBeTruthy();
expect(x.intersects(mkSpan('12', '18'))).toBeTruthy();
expect(x.intersects(mkSpan('15', '25'))).toBeTruthy();
expect(x.intersects(mkSpan('20', '30'))).toBeFalsy();
expect(x.intersects(mkSpan('5', '25'))).toBeTruthy();
});
});
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