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MockClock

Struct MockClock 

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pub struct MockClock { /* private fields */ }
Expand description

Mock clock for deterministic testing.

Time is represented as a controllable nanosecond counter. No host clock calls are used, making execution fully reproducible.

§Thread Safety

MockClock uses atomic operations and can be safely shared across threads.

§Example

use std::time::Duration;
use telltale_types::effects::{Clock, MockClock};

let clock = MockClock::new();
assert_eq!(clock.now(), Duration::ZERO);

clock.advance(Duration::from_secs(1));
assert_eq!(clock.now(), Duration::from_secs(1));

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impl MockClock

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pub fn new() -> MockClock

Create a new mock clock at offset zero.

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pub fn set_offset(&self, offset: Duration)

Set the clock to a specific offset from epoch.

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pub fn offset_ns(&self) -> u64

Get the current offset as raw nanoseconds.

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impl AsyncClock for MockClock

Implement AsyncClock for MockClock.

Sleep immediately advances simulated time without blocking.

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async fn sleep(&self, duration: Duration)

Sleep for a duration asynchronously. Read more
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impl Clock for MockClock

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fn now(&self) -> Duration

Get the current monotonic offset.
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fn advance(&self, duration: Duration)

Advance simulated time by a duration. Read more
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fn elapsed(&self, since: Duration) -> Duration

Get elapsed time since a previous monotonic point.
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impl Debug for MockClock

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

Formats the value using the given formatter. Read more
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impl Default for MockClock

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fn default() -> MockClock

Returns the “default value” for a type. Read more
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impl WallClock for MockClock

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fn now_unix_ns(&self) -> u64

Current wall-clock timestamp in nanoseconds since Unix epoch.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Az for T

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fn az<Dst>(self) -> Dst
where T: Cast<Dst>,

Casts the value.
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Src, Dst> CastFrom<Src> for Dst
where Src: Cast<Dst>,

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fn cast_from(src: Src) -> Dst

Casts the value.
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impl<T> CheckedAs for T

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fn checked_as<Dst>(self) -> Option<Dst>
where T: CheckedCast<Dst>,

Casts the value.
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impl<Src, Dst> CheckedCastFrom<Src> for Dst
where Src: CheckedCast<Dst>,

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fn checked_cast_from(src: Src) -> Option<Dst>

Casts the value.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<Src, Dst> LosslessTryInto<Dst> for Src
where Dst: LosslessTryFrom<Src>,

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fn lossless_try_into(self) -> Option<Dst>

Performs the conversion.
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impl<Src, Dst> LossyInto<Dst> for Src
where Dst: LossyFrom<Src>,

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Performs the conversion.
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fn overflowing_as<Dst>(self) -> (Dst, bool)
where T: OverflowingCast<Dst>,

Casts the value.
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impl<Src, Dst> OverflowingCastFrom<Src> for Dst
where Src: OverflowingCast<Dst>,

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fn overflowing_cast_from(src: Src) -> (Dst, bool)

Casts the value.
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> SaturatingAs for T

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fn saturating_as<Dst>(self) -> Dst
where T: SaturatingCast<Dst>,

Casts the value.
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impl<Src, Dst> SaturatingCastFrom<Src> for Dst
where Src: SaturatingCast<Dst>,

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fn saturating_cast_from(src: Src) -> Dst

Casts the value.
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impl<T> StrictAs for T

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fn strict_as<Dst>(self) -> Dst
where T: StrictCast<Dst>,

Casts the value.
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impl<Src, Dst> StrictCastFrom<Src> for Dst
where Src: StrictCast<Dst>,

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fn strict_cast_from(src: Src) -> Dst

Casts the value.
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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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fn unwrapped_as<Dst>(self) -> Dst
where T: UnwrappedCast<Dst>,

Casts the value.
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impl<Src, Dst> UnwrappedCastFrom<Src> for Dst
where Src: UnwrappedCast<Dst>,

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fn unwrapped_cast_from(src: Src) -> Dst

Casts the value.
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impl<V, T> VZip<V> for T
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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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impl<T> WrappingAs for T

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fn wrapping_as<Dst>(self) -> Dst
where T: WrappingCast<Dst>,

Casts the value.
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fn wrapping_cast_from(src: Src) -> Dst

Casts the value.
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