public void ExecuteAsync_ShouldThrow_WhenAsyncExifToolInstanceIsNull()
        {
            // arrange

            // act
            Action act = () => Sut.ExecuteAsync(null, string.Empty, CancellationToken.None);

            // assert
            act.Should().Throw <ArgumentNullException>();
        }
        public void GetVersionAsync_ShouldThrow_WhenAsyncExifToolInstanceIsNull()
        {
            // arrange

            // act
            Action act = () => Sut.GetVersionAsync(null, CancellationToken.None);

            // assert
            act.Should().Throw <ArgumentNullException>();
        }