public void CalculateNumberValueTests()
{
// Arrange
var exampleMultipliers1 = new int[] { 3, 200, 320, 999, 1 };
var expectedResult1 = 3200320999D;
var exampleMultipliers2 = new int[] { 0, 0, 999, 0, -1 };
var expectedResult2 = -999000D;
// Act
var actualResult1 = converterHelper.CalculateNumberValue(exampleMultipliers1);
var actualResult2 = converterHelper.CalculateNumberValue(exampleMultipliers2);
// Assert
Assert.AreEqual(expectedResult1, actualResult1);
Assert.AreEqual(expectedResult2, actualResult2);
}