public void GetAll()
{
//Arrange
_mock.Setup(s => s.GetAll()).Returns(_exercises);
//Act
var result = _exerciseController.GetAll();
var exercisesResult = result as OkNegotiatedContentResult <List <Exercise> >;
//Assert
Assert.IsInstanceOfType(result, typeof(OkNegotiatedContentResult <List <Exercise> >));
Assert.IsTrue(exercisesResult.Content.Count() > 0);
}
