public async Task CalculateNumbers_ShouldReturnADouble_Multiply(int operation, double[] numbers, double expectedValue)
{
//Arrange
// int operation = 1;
// double[] numbers = {2,3,4,5,10};
//Act
var result = await Task.FromResult(controller.CalculateNumbers(operation, numbers)).Result;
//Assert
Assert.Equal(expectedValue, result);
}
