Struct FakeClock 

pub struct FakeClock { /* private fields */ }

A fake clock that returns configurable timestamps.

This is useful for testing code that depends on timing without introducing non-determinism from real system clocks.

Thread Safety

All methods are &self (not &mut self), making it safe to share a single instance across multiple threads in tests.

Example

use perfgate_fake::FakeClock;
use std::time::Duration;

let clock = FakeClock::new()
    .with_millis(1000);

assert_eq!(clock.now_millis(), 1000);

clock.advance(Duration::from_millis(500));
assert_eq!(clock.now_millis(), 1500);

Implementations

impl FakeClock

pub fn new() -> Self

Create a new FakeClock starting at time 0.

pub fn at_millis(millis: u64) -> Self

Create a FakeClock starting at a specific time in milliseconds.

pub fn at(duration: Duration) -> Self

Create a FakeClock starting at a specific time.

pub fn with_millis(self, millis: u64) -> Self

Set the current time in milliseconds.

pub fn with_duration(self, duration: Duration) -> Self

Set the current time.

pub fn now_millis(&self) -> u64

Get the current time in milliseconds.

pub fn now(&self) -> Duration

Get the current time as a Duration.

pub fn advance(&self, duration: Duration)

Advance the clock by a duration.

pub fn advance_millis(&self, millis: u64)

Advance the clock by a number of milliseconds.

pub fn reset(&self)

Reset the clock to time 0.

Trait Implementations

impl Clone for FakeClock

fn clone(&self) -> FakeClock

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FakeClock

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

Formats the value using the given formatter.

impl Default for FakeClock

fn default() -> Self

Returns the “default value” for a type.