public void DefaultBatchTest()
{
foreach (var problem in problems)
{
LbfgsbComparer cmp = new LbfgsbComparer();
var expected = cmp.Expected(problem);
var actual = cmp.Actual(problem);
check(actual, expected);
}
}
public void ParameterTest1()
{
LbfgsbComparer cmp = new LbfgsbComparer()
{
factr = 1.0e+7,
l = null,
u = null,
pgtol = 1e-5,
m = 10,
};
compute(problems, cmp);
}
public void InvalidLineSearchTest()
{
double t = 0;
double s = 0;
int n = 10;
Func <double[], double> function = (parameters) =>
{
t = parameters[0];
s = parameters[1];
return(-(n * Math.Log(s) - n * Math.Log(Math.PI)));
};
Func <double[], double[]> gradient = (parameters) =>
{
t = parameters[0];
s = parameters[1];
double dt = -2.0;
double ds = +2.0 - n / s;
return(new[] { dt, ds });
};
double[] start = { 0, 0 };
Specification problem = new Specification(2, function, gradient, start);
LbfgsbComparer cmp = new LbfgsbComparer();
compute(new List <Specification>()
{
problem
}, cmp);
}
private static void compute(List <Specification> problems, LbfgsbComparer cmp)
{
foreach (var problem in problems)
{
string actualStr = String.Empty;
string expectedStr = String.Empty;
cmp.l = null;
cmp.u = null;
OptimizationProgressEventArgs[] actual = null;
try { actual = cmp.Actual(problem); }
catch (Exception ex)
{
actualStr = ex.Data["Code"] as string;
if (actualStr == null)
{
throw;
}
}
var expected = cmp.Expected(problem);
expectedStr = cmp.NativeCode;
if (actualStr == String.Empty)
{
actualStr = cmp.ActualMessage;
}
Assert.AreEqual(expectedStr, actualStr);
check(actual, expected);
}
}
