MockVelo<T> class

A mock implementation of Velo for testing purposes.

This class provides additional testing capabilities such as:

  • State history tracking with memory leak prevention
  • Emission verification methods
  • State disposal detection
  • Automatic cleanup and validation

Example:

void main() {
  group('CounterVelo', () {
    test('should increment counter', () {
      final mockVelo = MockVelo<int>(0);

      mockVelo.emit(1);
      mockVelo.emit(2);

      mockVelo.verifyStatesEmittedInOrder([1, 2]);
      expect(mockVelo.emittedStates, [1, 2]);

      mockVelo.dispose();
    });
  });
}
Inheritance

Constructors

MockVelo(T initialState)
Creates a new MockVelo with the given initial state.

Properties

emittedStates → List<T>
List of all states that have been emitted (excluding initial state). Returns a copy to prevent external modification.
no setter
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
historySize → int
Gets the history size for memory monitoring.
no setter
isHistoryNearLimit → bool
Gets whether the history size is approaching the limit.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
state → T
Gets the current state.
no setterinherited
stateHistory → List<T>
List of all states that have been emitted, including the initial state. Returns a copy to prevent external modification.
no setter
value ↔ T
The current value stored in this notifier.
getter/setter pairinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
clearHistory() → void
Clears the state history while keeping the current state.
dispose() → void
Disposes the mock and clears all state history.
override
emit(T state) → void
Emits a new state and adds it to the history.
emitAsync(Future<T> futureState) → Future<void>
Emits a state from a Future.
inherited
getEmissionCount(T targetState) → int
Gets the number of times a specific state was emitted.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
toString() → String
A string representation of this object.
inherited
verifyNoStatesEmitted() → void
Verifies that no states have been emitted (only initial state exists).
verifyStateEmitted(T expectedState) → void
Verifies that the specified state was emitted.
verifyStatesEmittedInOrder(List<T> expectedStates) → void
Verifies that states were emitted in the specified order.

Operators

operator ==(Object other) → bool
The equality operator.
inherited