public void PDFGradientDescriptorColorFunction3_Test()
{
PDFGradientDescriptor target = new PDFGradientLinearDescriptor();
Assert.IsNotNull(target);
Assert.IsTrue(target.GradientType == GradientType.Linear);
Assert.IsFalse(target.Repeating);
Assert.IsNotNull(target.Colors);
Assert.AreEqual(0, target.Colors.Count);
target.Colors = new List <PDFGradientColor>(new PDFGradientColor[]
{
new PDFGradientColor(PDFColors.Red),
new PDFGradientColor(PDFColors.Green)
});
var fn = target.GetGradientFunction(PDFPoint.Empty, new PDFSize(100, 100));
Assert.IsInstanceOfType(fn, typeof(PDFGradientFunction2));
var fn2 = fn as PDFGradientFunction2;
Assert.AreEqual(fn2.ColorZero, PDFColors.Red);
Assert.AreEqual(fn2.ColorOne, PDFColors.Green);
Assert.AreEqual(0.0, fn2.DomainStart);
Assert.AreEqual(1.0, fn2.DomainEnd);
Assert.AreEqual(1.0, fn2.Exponent);
//Radial gradient at 0 and 50% test
target = new PDFGradientRadialDescriptor();
Assert.IsNotNull(target);
Assert.IsTrue(target.GradientType == GradientType.Radial);
Assert.IsFalse(target.Repeating);
Assert.IsNotNull(target.Colors);
Assert.AreEqual(0, target.Colors.Count);
target.Colors = new List <PDFGradientColor>(new PDFGradientColor[]
{
new PDFGradientColor(PDFColors.Red),
new PDFGradientColor(PDFColors.Green, 50, null)
});
fn = target.GetGradientFunction(PDFPoint.Empty, new PDFSize(100, 100));
Assert.IsInstanceOfType(fn, typeof(PDFGradientFunction2));
fn2 = fn as PDFGradientFunction2;
Assert.AreEqual(fn2.ColorZero, PDFColors.Red);
Assert.AreEqual(fn2.ColorOne, PDFColors.Green);
Assert.AreEqual(0.0, fn2.DomainStart);
Assert.AreEqual(2.0, fn2.DomainEnd);
Assert.AreEqual(1.0, fn2.Exponent);
//Radial gradient at 50% and 100% test
target = new PDFGradientRadialDescriptor();
Assert.IsNotNull(target);
Assert.IsTrue(target.GradientType == GradientType.Radial);
Assert.IsFalse(target.Repeating);
Assert.IsNotNull(target.Colors);
Assert.AreEqual(0, target.Colors.Count);
target.Colors = new List <PDFGradientColor>(new PDFGradientColor[]
{
new PDFGradientColor(PDFColors.Red, 50, null),
new PDFGradientColor(PDFColors.Green, 100, null)
});
fn = target.GetGradientFunction(PDFPoint.Empty, new PDFSize(100, 100));
//This should not be a function 2 type as we add the Red colour at 0% too.
Assert.IsNotInstanceOfType(fn, typeof(PDFGradientFunction2));
}
