interpolation test: reorganized to support non-standard-parameter meta algorithms

Signed-off-by: Christoph Ruegg <git@cdrnet.ch>

src/Managed.UnitTests/InterpolationTests/InterpolationContract.cs

@@ -40,6 +40,7 @@ namespace MathNet.Numerics.UnitTests.InterpolationTests
     {
         public Func<IList<double>, IList<double>, IInterpolation> Factory { get; set; }
         public int[] Order { get; set; }
+        public bool NonStandardParameters { get; set; }
         public bool LinearBehavior { get; set; }
         public bool PolynomialBehavior { get; set; }
         public bool RationalBehavior { get; set; }
@@ -51,24 +52,34 @@ namespace MathNet.Numerics.UnitTests.InterpolationTests
 
         protected override IEnumerable<Test> GetContractVerificationTests()
         {
+            // Infrastructure Tests
+
             yield return CreateFactoryReturnsCorrectTypeTest("FactoryReturnsCorrectType");
+            yield return CreateConsistentCapabilityBehaviorTest("ConsistentCapabilityBehavior");
+
             yield return CreateInitChecksForNullTest("InitChecksForNull");
             yield return CreateInitChecksForMatchingCountTest("InitChecksForMatchingCount");
-            yield return CreateConstructorInitShortcutTest("ConstructorInitShortcut");
-            yield return CreateConsistentCapabilityBehaviorTest("ConsistentCapabilityBehavior");
+
+            if (!NonStandardParameters)
+            {
+                yield return CreateConstructorInitShortcutTest("ConstructorInitShortcut");
+            }
+
+            // Numerics Behavior Tests
+
             yield return CreateInterpolationMatchesNodePointsTest("InterpolationMatchesNodePoints");
 
-            if (LinearBehavior)
+            if (LinearBehavior && !NonStandardParameters)
             {
                 yield return CreateLinearBehaviorTest("LinearBehavior");
             }
 
-            if (PolynomialBehavior)
+            if (PolynomialBehavior && !NonStandardParameters)
             {
                 yield return CreatePolynomialBehaviorTest("PolynomialBehavior");
             }
 
-            if (RationalBehavior)
+            if (RationalBehavior && !NonStandardParameters)
             {
                 yield return CreateRationalBehaviorTest("RationalBehavior");
             }

src/Managed.UnitTests/InterpolationTests/InterpolationTest.cs

@@ -37,44 +37,66 @@ namespace MathNet.Numerics.UnitTests.InterpolationTests
     [TestFixture]
     public class InterpolationTest
     {
+        // Direct Algorithms (without precomputations)
+
         [VerifyContract]
-        public readonly IContract LinearSplineContractTests = new InterpolationContract<LinearSplineInterpolation>()
+        public readonly IContract NevillePolynomialContractTests = new InterpolationContract<NevillePolynomialInterpolation>()
         {
-            Factory = Interpolate.LinearBetweenPoints,
-            Order = new[] { 2, 3, 6 },
+            Factory = (t, x) => new NevillePolynomialInterpolation(t, x),
+            Order = new[] { 1, 2, 6 },
             LinearBehavior = true,
-            PolynomialBehavior = false,
+            PolynomialBehavior = true,
             RationalBehavior = false
         };
 
         [VerifyContract]
-        public readonly IContract FloaterHormannRationalContractTests = new InterpolationContract<FloaterHormannRationalInterpolation>()
+        public readonly IContract BulirschStoerRationalContractTests = new InterpolationContract<BulirschStoerRationalInterpolation>()
         {
-            Factory = Interpolate.RationalWithoutPoles,
+            Factory = Interpolate.RationalWithPoles,
             Order = new[] { 1, 2, 6 },
-            LinearBehavior = true,
+            LinearBehavior = false,
             PolynomialBehavior = true,
             RationalBehavior = true
         };
 
+        // Barycentric Algorithms
+
         [VerifyContract]
-        public readonly IContract NevillePolynomialContractTests = new InterpolationContract<NevillePolynomialInterpolation>()
+        public readonly IContract BarycentricContractTests = new InterpolationContract<BarycentricInterpolation>()
         {
-            Factory = (t, x) => new NevillePolynomialInterpolation(t, x),
+            Factory = (t, x) => new BarycentricInterpolation(t, x, FloaterHormannRationalInterpolation.EvaluateBarycentricWeights(t, x, 2)),
             Order = new[] { 1, 2, 6 },
-            LinearBehavior = true,
-            PolynomialBehavior = true,
-            RationalBehavior = false
+            NonStandardParameters = true,
         };
 
         [VerifyContract]
-        public readonly IContract BulirschStoerRationalContractTests = new InterpolationContract<BulirschStoerRationalInterpolation>()
+        public readonly IContract FloaterHormannRationalContractTests = new InterpolationContract<FloaterHormannRationalInterpolation>()
         {
-            Factory = Interpolate.RationalWithPoles,
+            Factory = Interpolate.RationalWithoutPoles,
             Order = new[] { 1, 2, 6 },
-            LinearBehavior = false,
+            LinearBehavior = true,
             PolynomialBehavior = true,
             RationalBehavior = true
         };
+
+        // Spline Algorithms
+
+        [VerifyContract]
+        public readonly IContract SplineContractTests = new InterpolationContract<SplineInterpolation>()
+        {
+            Factory = (t, x) => new SplineInterpolation(t, LinearSplineInterpolation.EvaluateSplineCoefficients(t, x)),
+            Order = new[] { 1, 2, 6 },
+            NonStandardParameters = true,
+        };
+
+        [VerifyContract]
+        public readonly IContract LinearSplineContractTests = new InterpolationContract<LinearSplineInterpolation>()
+        {
+            Factory = Interpolate.LinearBetweenPoints,
+            Order = new[] { 2, 3, 6 },
+            LinearBehavior = true,
+            PolynomialBehavior = false,
+            RationalBehavior = false
+        };
     }
 }