PHPackages                             sanmai/duoclock - PHPackages - PHPackages  [Skip to content](#main-content)[PHPackages](/)[Directory](/)[Categories](/categories)[Trending](/trending)[Leaderboard](/leaderboard)[Changelog](/changelog)[Analyze](/analyze)[Collections](/collections)[Log in](/login)[Sign up](/register)

1. [Directory](/)
2. /
3. [Testing & Quality](/categories/testing)
4. /
5. sanmai/duoclock

ActiveLibrary[Testing & Quality](/categories/testing)

sanmai/duoclock
===============

PHP time mocking for tests - PSR-20 clock with mockable sleep(), time(), and TimeSpy for PHPUnit testing

0.1.3(6mo ago)34.7M↓32.4%1[1 PRs](https://github.com/sanmai/DuoClock/pulls)3Apache-2.0PHPPHP >=8.2CI passing

Since Jul 12Pushed 4mo agoCompare

[ Source](https://github.com/sanmai/DuoClock)[ Packagist](https://packagist.org/packages/sanmai/duoclock)[ GitHub Sponsors](https://github.com/sanmai)[ RSS](/packages/sanmai-duoclock/feed)WikiDiscussions main Synced 4d ago

READMEChangelog (4)Dependencies (9)Versions (8)Used By (3)

[![License](https://camo.githubusercontent.com/1d952c48cb7a1e494b822521514b72c2f96164876b212e18cb9c43808eb83913/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f6c6963656e73652f73616e6d61692f64756f636c6f636b2e737667)](LICENSE)[![PHP Version](https://camo.githubusercontent.com/268160a617f31f6c489019f2f8765b7f7d2817c87512f0d27592d60573a5d31b/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f7068702d762f73616e6d61692f64756f636c6f636b2e737667)](https://packagist.org/packages/sanmai/duoclock)

DuoClock
========

[](#duoclock)

DuoClock is a PSR-20-compatible clock abstraction. It provides dual time access (`DateTimeImmutable`, `int`, `float`) and mockable sleep functions (`sleep`, `usleep`, and more) for testing time-sensitive code.

Features
--------

[](#features)

- Implements `Psr\Clock\ClockInterface`.
- Provides:
    - `now(): DateTimeImmutable`
    - `time(): int`
    - `microtime(): float`
- Offers mockable `sleep()`, `usleep()`, `nanosleep()`, and `time_nanosleep()` for test environments.
- Provides `getStartTick()` and `getEndTick()` for measuring elapsed time.
- Mockable time methods: `now()`, `time()`, and `microtime()`.
- Includes a deterministic `TimeSpy` for testing.
- Is minimal, with a lightweight design (depends only on `psr/clock`).
- Has all classes non-final to allow easy mocking and testing.

Installation
------------

[](#installation)

```
composer require sanmai/duoclock
```

Interfaces
----------

[](#interfaces)

```
namespace DuoClock;

interface DuoClockInterface
{
    public function time(): int;
    public function microtime(): float;
}

interface SleeperInterface
{
    public function sleep(int $seconds): int;
    public function usleep(int $microseconds): void;
}

interface NanoSleeperInterface
{
    public function time_nanosleep(int $seconds, int $nanoseconds): array|bool;
    public function nanosleep(int $nanoseconds): array|bool;
}

interface TickerInterface
{
    public function getStartTick(): float;
    public function getEndTick(): float;
}
```

Usage
-----

[](#usage)

Real Clock:

```
$clock = new DuoClock\DuoClock();

$clock->now();        // DateTimeImmutable
$clock->time();       // int
$clock->microtime();  // float

$clock->sleep(1);     // real sleep
$clock->usleep(1000); // real micro-sleep

$clock->nanosleep(1_500_000_000); // sleep 1.5 seconds
$clock->time_nanosleep(1, 500_000_000); // same as above
```

### Measuring Elapsed Time

[](#measuring-elapsed-time)

```
$clock = new DuoClock\DuoClock();

$timer = $clock->getStartTick();
// ...work...
$timer += $clock->getEndTick();
// $timer now contains elapsed seconds as float
```

TimeSpy, as a testing-time dependency:

```
$clock = new DuoClock\TimeSpy(1752321600); // Corresponds to '2025-07-12T12:00:00Z'

$clock->time();       // 1752321600

$clock->sleep(10);    // advances virtual clock by 10 seconds
$clock->usleep(5000); // advances virtual clock by 0.005 seconds

$clock->time();       // 1752321610
$clock->microtime();  // 1752321610.005
```

### Mocking and Spies

[](#mocking-and-spies)

The recommended approach is to always use TimeSpy for testing (`$clock = new TimeSpy();`) because calls to `$clock->sleep()` and `$clock->usleep()` do not delay execution even if you do not specifically mock them.

```
$mock = $this->createMock(DuoClock\TimeSpy::class);

$mock->expects($this->exactly(1))
    ->method('time')
    ->willReturn(self::TIME_BEFORE_LAUNCH);

$example = new ExampleUsingTime($mock);
$this->assertFalse($example->launch());
```

```
$mock = $this->createMock(DuoClock\TimeSpy::class);

$mock->expects($this->exactly(1))
    ->method('usleep')
    ->with(self::POLL_TIME);

$example = new ExampleUsingSleep($mock);
$example->waitDuringPolling();
```

Why DuoClock Exists
-------------------

[](#why-duoclock-exists)

PHP now has [PSR-20](https://www.php-fig.org/psr/psr-20/), a standard interface for representing the current time using immutable objects. This interface works well for many applications, but assumes that all time-based code should consume `DateTimeImmutable`. In practice, testing time-based code often requires mocking and emulating `sleep()` and `usleep()`, especially for retry logic, timeout simulations, or rate limiters. You do not want to wait for literal seconds for your `sleep()` tests to pass! PSR-20 offers no solution for this, which is where DuoClock steps in.

Development
-----------

[](#development)

```
# Run all checks (tests, static analysis, mutation testing)
make -j -k
```

License
-------

[](#license)

Licensed under the Apache License, Version 2.0. See [LICENSE](LICENSE) for details.

###  Health Score

49

—

FairBetter than 94% of packages

Maintenance73

Regular maintenance activity

Popularity48

Moderate usage in the ecosystem

Community18

Small or concentrated contributor base

Maturity44

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 60% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~55 days

Total

4

Last Release

191d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/edcb8dde95c71b1c97c3c91e57d3548795fa2014c657744fb878e2be3b5949fc?d=identicon)[sanmai](/maintainers/sanmai)

---

Top Contributors

[![sanmai](https://avatars.githubusercontent.com/u/139488?v=4)](https://github.com/sanmai "sanmai (6 commits)")[![dependabot[bot]](https://avatars.githubusercontent.com/in/29110?v=4)](https://github.com/dependabot[bot] "dependabot[bot] (3 commits)")[![Chris53897](https://avatars.githubusercontent.com/u/7104259?v=4)](https://github.com/Chris53897 "Chris53897 (1 commits)")

###  Code Quality

TestsPHPUnit

Static AnalysisPHPStan

Code StylePHP CS Fixer

Type Coverage Yes

### Embed Badge

![Health badge](/badges/sanmai-duoclock/health.svg)

```
[![Health](https://phpackages.com/badges/sanmai-duoclock/health.svg)](https://phpackages.com/packages/sanmai-duoclock)
```

###  Alternatives

[symfony/symfony

The Symfony PHP framework

31.4k87.2M2.2k](/packages/symfony-symfony)[spomky-labs/otphp

A PHP library for generating one time passwords according to RFC 4226 (HOTP Algorithm) and the RFC 6238 (TOTP Algorithm) and compatible with Google Authenticator

1.5k50.3M169](/packages/spomky-labs-otphp)[tempest/framework

The PHP framework that gets out of your way.

2.2k34.4k15](/packages/tempest-framework)[nesbot/carbon

An API extension for DateTime that supports 281 different languages.

185701.7M5.6k](/packages/nesbot-carbon)[ecotone/ecotone

Enterprise architecture layer for Laravel and Symfony — CQRS, Event Sourcing, Durable Workflows (Sagas, Orchestrators), Projections, and Outbox messaging via PHP attributes.

564576.7k53](/packages/ecotone-ecotone)[simplesamlphp/saml2

SAML2 PHP library from SimpleSAMLphp

30418.0M43](/packages/simplesamlphp-saml2)

PHPackages © 2026

[Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)