Struct FixedClock 

pub struct FixedClock(/* private fields */);

A Clock that always returns a configured time until FixedClock::set changes it.

Examples

use ddd_toolkit_core::mock::clock::FixedClock;
use ddd_toolkit_core::port::clock::Clock;

let noon = "2026-07-21T12:00:00Z".parse().unwrap();
let clock = FixedClock::new(noon);

// now() returns the configured instant, regardless of wall-clock time...
assert_eq!(clock.now(), noon);

// ...until the test explicitly advances it.
let evening = "2026-07-21T18:00:00Z".parse().unwrap();
clock.set(evening);
assert_eq!(clock.now(), evening);

Implementations

impl FixedClock

pub fn new(now: DateTime<Utc>) -> Self

Creates a FixedClock that returns now until FixedClock::set is called.

pub fn set(&self, now: DateTime<Utc>)

Changes the time this clock returns.

Trait Implementations

impl Clock for FixedClock

fn now(&self) -> DateTime<Utc>

The current time.

impl Debug for FixedClock

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.