public void GetAll()
{
// Arrange
_mock.Setup(s => s.GetAll()).Returns(_trainings);
// Act
var result = _trainingController.GetAll();
var trainingsResult = result as OkNegotiatedContentResult <List <Training> >;
// Assert
Assert.IsInstanceOfType(result, typeof(OkNegotiatedContentResult <List <Training> >));
Assert.AreEqual(_trainings.Count, trainingsResult.Content.Count());
}
