public void ConvertLessThanOneEarthRadius()
            {
                var input1         = EARTH_RADIUS_IN_KM / 12;
                var expectedValue1 = 1.0 / 12;

                var input2         = EARTH_RADIUS_IN_KM / 4;
                var expectedValue2 = 1.0 / 4;

                Assert.AreEqual(expectedValue1, UnitConversions.KilometersToEarthRadius(input1), DELTA);
                Assert.AreEqual(expectedValue2, UnitConversions.KilometersToEarthRadius(input2), DELTA);
            }
 public void ConvertZeroSolarMasses()
 {
     Assert.AreEqual(0, UnitConversions.KilometersToEarthRadius(0), DELTA);
 }
            public void ConvertOneEarthRadius()
            {
                var expectedValue = 1.0;

                Assert.AreEqual(expectedValue, UnitConversions.KilometersToEarthRadius(EARTH_RADIUS_IN_KM), DELTA);
            }