public static void Resolve_ThrowsArgumentNullException_ForNullViewType()
{
// Arrange
var resolver = new PresenterConstructorResolver();
var presenterType = typeof(IPresenter <IView>);
// Act & Assert
Assert.Throws <ArgumentNullException>(() => resolver.Resolve(presenterType, null));
}
public static void Resolve_ThrowsArgumentException_WhenPresenterTypeIsPrivate()
{
// Arrange
var resolver = new PresenterConstructorResolver();
var presenterType = typeof(MyPrivatePresenter_);
var viewType = typeof(IView);
// Act & Assert
Assert.Throws <ArgumentException>(() => resolver.Resolve(presenterType, viewType));
}
public static void Resolve_ThrowsArgumentException_WhenMissingRequiredConstructor()
{
// Arrange
var resolver = new PresenterConstructorResolver();
var presenterType = typeof(MyBadPresenter <IMyView1>);
var viewType = typeof(IMyView1);
// Act & Assert
Assert.Throws <ArgumentException>(() => resolver.Resolve(presenterType, viewType));
}
public static void Resolve_ThrowsArgumentException_ForViewTypeMismatch()
{
// Arrange
var resolver = new PresenterConstructorResolver();
var presenterType = typeof(MyPresenter <IMyView1>);
var viewType = typeof(IMyView2);
// Act & Assert
Assert.Throws <ArgumentException>(() => resolver.Resolve(presenterType, viewType));
}
public static void Resolve_ReturnsDifferentConstructors_ForDifferentViewTypes()
{
// Arrange
var resolver = new PresenterConstructorResolver();
// Act
var ctor1 = resolver.Resolve(typeof(MyPresenter <IView>), typeof(IMyView3));
var ctor2 = resolver.Resolve(typeof(MyPresenter <IView>), typeof(IMyView4));
// Assert
Assert.NotEqual(ctor1, ctor2);
}
public static void Resolve_ReturnsExpectedConstructor()
{
// Arrange
var resolver = new PresenterConstructorResolver();
var presenterType = typeof(MyPresenter <IMyView1>);
var viewType = typeof(IMyView1);
var view = Substitute.For <IMyView1>();
// Act
var ctor = resolver.Resolve(presenterType, viewType);
var instance = ctor.Invoke(null, new[] { view });
var presenter = instance as MyPresenter <IMyView1>;
// Assert
Assert.True(presenter != null);
if (presenter != null)
{
Assert.Equal(view, presenter.View);
}
}
