FakeClock class final

A Clock whose value is advanced by the caller. Used everywhere in animation tests; never use SystemClock in tests.

final clock = FakeClock();
// ... wire clock into a TickerScheduler / Ticker / etc.
clock.advance(const Duration(milliseconds: 100));
// any ticker is now 100ms further along its timeline.

Implemented types

• Clock

Constructors

FakeClock([Duration initial = Duration.zero])

Properties

hashCode → int

The hash code for this object.

no setter, inherited

now → Duration

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

advance(Duration delta) → void

Advances the clock by delta. Asserts delta is non-negative to preserve the monotonic-time invariant.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

set(Duration time) → void

Sets the clock to time. Asserts that the new value is at least as large as the current value.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited