public void TestUnitCompositions()
{
var quantA = BaseQuantity.DefineNewBaseQuantity("quantA",
"a");
var a = (BaseUnit)quantA.FundamentalUnit;
var b = new BaseUnit("b", a, 2);
var prefix = new Prefix("prefix", 4);
var c = PrefixedUnit.GetPrefixedUnit(a, prefix);
var composition =
a.UnitComposition *
b.UnitComposition /
c.UnitComposition;
var d = Unit.DefineFromComposition("d", composition);
Assert.AreSame(quantA, d.Quantity);
Assert.IsInstanceOfType(d, typeof(BaseUnit));
Assert.AreEqual(0.5m, d.FundamentalMultiplier);
}
public void TestConversionsAndDefinitions()
{
/* A = fundamental
* A = 2*B + 40
* A = 8*C + 360
*
* B = (A/2) - 20 = 4*C + 160
* B.multiplier = 2
* B.offset = 20
*
* C = (B/4) - 40 = (A/8) - 45
* C.multiplier = 8
* C.offset = 45
*/
var quant = BaseQuantity.DefineNewBaseQuantity(
"quantity", "a");
var a = (BaseUnit)quant.FundamentalUnit;
BaseUnit b = new ("b", a,
multiplier : 2m,
offset : 20m);
BaseUnit c = new ("c", b,
multiplier : 4m,
offset : 40m);
Assert.AreEqual(1m, a.FundamentalMultiplier);
Assert.AreEqual(0m, a.FundamentalOffset);
Assert.AreEqual(2m, b.FundamentalMultiplier);
Assert.AreEqual(20m, b.FundamentalOffset);
Assert.AreEqual(8m, c.FundamentalMultiplier);
Assert.AreEqual(45m, c.FundamentalOffset);
{
// Convert to fundamental
var aAsFund = a.ConvertToFundamental(3m);
Assert.AreEqual(3m, aAsFund.Magnitude);
Assert.AreSame(a, aAsFund.Unit);
var bAsFund = b.ConvertToFundamental(3m);
Assert.AreEqual(46m, bAsFund.Magnitude);
Assert.AreSame(a, bAsFund.Unit);
var cAsFund = c.ConvertToFundamental(3m);
Assert.AreEqual(384m, cAsFund.Magnitude);
Assert.AreSame(a, cAsFund.Unit);
}
{
// Convert to A
var aAsA = a.ConvertTo(3m, a);
Assert.AreEqual(3m, aAsA.Magnitude);
Assert.AreSame(a, aAsA.Unit);
var bAsA = b.ConvertToFundamental(3m);
Assert.AreEqual(46m, bAsA.Magnitude);
Assert.AreSame(a, bAsA.Unit);
var cAsA = c.ConvertToFundamental(3m);
Assert.AreEqual(384m, cAsA.Magnitude);
Assert.AreSame(a, cAsA.Unit);
}
{
// Convert to B
var aAsB = a.ConvertTo(4m, b);
Assert.AreEqual(-18m, aAsB.Magnitude);
Assert.AreSame(b, aAsB.Unit);
var bAsB = b.ConvertTo(3m, b);
Assert.AreEqual(3m, bAsB.Magnitude);
Assert.AreSame(b, bAsB.Unit);
var cAsB = c.ConvertTo(2m, b);
Assert.AreEqual(168m, cAsB.Magnitude);
Assert.AreSame(b, cAsB.Unit);
}
{
// Convert to C
var aAsC = a.ConvertTo(16m, c);
Assert.AreEqual(-43m, aAsC.Magnitude);
Assert.AreSame(c, aAsC.Unit);
var bAsC = b.ConvertTo(8m, c);
Assert.AreEqual(-38m, bAsC.Magnitude);
Assert.AreSame(c, bAsC.Unit);
var cAsC = c.ConvertTo(3m, c);
Assert.AreEqual(3m, cAsC.Magnitude);
Assert.AreSame(c, cAsC.Unit);
}
Prefix testPrefix = new("TestPrefix", 10m);
var pA = PrefixedUnit.GetPrefixedUnit(a, testPrefix);
var pB = PrefixedUnit.GetPrefixedUnit(b, testPrefix);
var pC = PrefixedUnit.GetPrefixedUnit(c, testPrefix);
Assert.AreEqual(10m, pA.FundamentalMultiplier);
Assert.AreEqual(0m, pA.FundamentalOffset);
Assert.AreEqual(20m, pB.FundamentalMultiplier);
Assert.AreEqual(2m, pB.FundamentalOffset);
Assert.AreEqual(80m, pC.FundamentalMultiplier);
Assert.AreEqual(4.5m, pC.FundamentalOffset);
{
var aAsPa = a.ConvertTo(20m, pA);
Assert.AreEqual(2m, aAsPa.Magnitude);
Assert.AreSame(pA, aAsPa.Unit);
var cAsPc = c.ConvertTo(20m, pC);
Assert.AreEqual(2m, cAsPc.Magnitude);
Assert.AreSame(pC, cAsPc.Unit);
var paAsA = pA.ConvertTo(2m, a);
Assert.AreEqual(20m, paAsA.Magnitude);
Assert.AreSame(a, paAsA.Unit);
var pcAsC = pC.ConvertTo(2m, c);
Assert.AreEqual(20m, pcAsC.Magnitude);
Assert.AreSame(c, pcAsC.Unit);
}
{
var aAsPc = a.ConvertTo(3200m, pC);
Assert.AreEqual(35.5m, aAsPc.Magnitude);
Assert.AreSame(pC, aAsPc.Unit);
var cAsPa = c.ConvertTo(30m, pA);
Assert.AreEqual(60m, cAsPa.Magnitude);
Assert.AreSame(pA, cAsPa.Unit);
var paAsC = pA.ConvertTo(60m, c);
Assert.AreEqual(30m, paAsC.Magnitude);
Assert.AreSame(c, paAsC.Unit);
var pCAsA = pC.ConvertTo(35.5m, a);
Assert.AreEqual(3200m, pCAsA.Magnitude);
Assert.AreSame(a, pCAsA.Unit);
}
}
