Struct quanta::Mock

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

Controllable time source for use in tests.

A mocked clock allows the caller to adjust the given time backwards and forwards by whatever amount they choose. While Clock promises monotonic values for normal readings, when running in mocked mode, these guarantees do not apply: the given Clock/Mock pair are directly coupled.

This can be useful for not only testing code that depends on the passage of time, but also for testing that code can handle large shifts in time.

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impl Mock

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pub fn increment<N: IntoNanoseconds>(&self, amount: N)

Increments the time by the given amount.

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pub fn decrement<N: IntoNanoseconds>(&self, amount: N)

Decrements the time by the given amount.

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pub fn value(&self) -> u64

Gets the current value of this Mock.

Trait Implementations§

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impl Clone for Mock

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fn clone(&self) -> Mock

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Mock

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

Formats the value using the given formatter. Read more

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impl RefUnwindSafe for Mock

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impl Send for Mock

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impl Sync for Mock

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impl Unpin for Mock

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impl UnwindSafe for Mock

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impl<T> Any for Twhere 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> Borrow<T> for Twhere 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 Twhere 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<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<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<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

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

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

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>

Performs the conversion.