MaterialWidgetDirector<Args> class

A specialized TestDirector for testing individual Flutter widgets that require basic Material Design context.

This director automatically wraps the target widget with Material and Directionality, providing the necessary context for Material Design widgets to function properly in tests.

Usage:

void main() {
  late MaterialWidgetDirector<(String, VoidCallback)> director;

  setUp(() {
    director = MaterialWidgetDirector<(String, VoidCallback)>()
      ..setUnitFactory((args) => MyButton(text: args.$1, onPressed: args.$2));
  });

  testWidgets('MyButton displays and functions correctly', (WidgetTester tester) async {
    bool pressed = false;
    director.setArgs(('Test Button', () => pressed = true));
    await tester.pumpWidget(director.construct());
    await tester.tap(find.byType(MyButton));
    expect(pressed, isTrue);
  });
}

@test For a complete example, see:

Inheritance

• Object
• TestDirector<Widget, Args>
• MaterialWidgetDirector

Constructors

MaterialWidgetDirector()

Properties

args ↔ Args

The built arguments, available after buildArgs is called.

late, final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

unit ↔ Widget

The built unit, available after buildUnit is called.

late, final, inherited

Methods

addUnitArrangement(Widget arrangement(Widget)) → void

Adds an arrangement function to modify or wrap the unit after its initial creation.

inherited

buildArgs() → Args

Builds the arguments using either the set args or the args factory.

inherited

buildUnit(Args args) → Widget

Builds the unit using the factory and applies all arrangements.

inherited

construct({Args? args}) → Widget

Constructs the Unit using the provided Args.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

setArgs(Args args) → void

Sets the arguments directly.

inherited

setArgsFactory(covariant ArgsFactory<Args> argsFactory) → void

Sets the factory function used to create arguments.

inherited

setUnitFactory(UnitFactory<Widget, Args> unitFactory) → void

Sets the factory function used to create the initial unit.

inherited

toString() → String

A string representation of this object.

inherited

useDirectionality([TextDirection textDirection = TextDirection.ltr]) → void

useMaterial() → void

Operators

operator ==(Object other) → bool

The equality operator.

inherited