public void WhenFromOADateUtcCalled_ExpectSameValueReturned()
        {
            // Arrange
            const double oaTime = 30000;
            var expected = DateTime.FromOADate(oaTime);

            // Act
            var target = new DateTimeWrap();
            var actual = target.FromOADate(oaTime);

            // Assert
            actual.DateTimeInstance.Should().Equal(expected);
        }