// Copyright (C) Stichting Deltares 2017. All rights reserved.
//
// This file is part of Ringtoets.
//
// Ringtoets is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// All names, logos, and references to "Deltares" are registered trademarks of
// Stichting Deltares and remain full property of Stichting Deltares at all times.
// All rights reserved.

using System;
using System.ComponentModel;
using System.Linq;
using AssemblyTool.Kernel;
using AssemblyTool.Kernel.Data;
using AssemblyTool.Kernel.Data.AssemblyCategories;
using AssemblyTool.Kernel.Data.CalculationResults;
using Core.Common.TestUtil;
using NUnit.Framework;
using Rhino.Mocks;
using Ringtoets.AssemblyTool.Data;
using Ringtoets.AssemblyTool.KernelWrapper.Calculators.Assembly;
using Ringtoets.AssemblyTool.KernelWrapper.Kernels;
using Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Kernels;
using Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Kernels.Assembly;
using Ringtoets.Common.Primitives;

namespace Ringtoets.AssemblyTool.KernelWrapper.Test.Calculators.Assembly
{
    [TestFixture]
    public class FailureMechanismSectionAssemblyCalculatorTest
    {
        [Test]
        public void Constructor_ExpectedValues()
        {
            // Setup
            var mocks = new MockRepository();
            var kernelFactory = mocks.Stub<IAssemblyToolKernelFactory>();
            mocks.ReplayAll();

            // Call
            var calculator = new FailureMechanismSectionAssemblyCalculator(kernelFactory);

            // Assert
            Assert.IsInstanceOf<IFailureMechanismSectionAssemblyCalculator>(calculator);
            mocks.VerifyAll();
        }

        [Test]
        public void Constructor_FactoryNull_ThrowsArgumentNullException()
        {
            // Call
            TestDelegate call = () => new FailureMechanismSectionAssemblyCalculator(null);

            // Assert
            var exception = Assert.Throws<ArgumentNullException>(call);
            Assert.AreEqual("factory", exception.ParamName);
        }

        private static void AssertCalculatorOutput(CalculationOutput<FailureMechanismSectionAssemblyCategoryResult> original, FailureMechanismSectionAssembly actual)
        {
            Assert.AreEqual(GetGroup(original.Result.CategoryGroup), actual.Group);
            Assert.AreEqual(original.Result.EstimatedProbabilityOfFailure, actual.Probability);
        }

        private static FailureMechanismSectionAssemblyCategoryGroup GetGroup(FailureMechanismSectionCategoryGroup originalGroup)
        {
            switch (originalGroup)
            {
                case FailureMechanismSectionCategoryGroup.Iv:
                    return FailureMechanismSectionAssemblyCategoryGroup.Iv;
                case FailureMechanismSectionCategoryGroup.IIv:
                    return FailureMechanismSectionAssemblyCategoryGroup.IIv;
                case FailureMechanismSectionCategoryGroup.IIIv:
                    return FailureMechanismSectionAssemblyCategoryGroup.IIIv;
                case FailureMechanismSectionCategoryGroup.IVv:
                    return FailureMechanismSectionAssemblyCategoryGroup.IVv;
                case FailureMechanismSectionCategoryGroup.Vv:
                    return FailureMechanismSectionAssemblyCategoryGroup.Vv;
                case FailureMechanismSectionCategoryGroup.VIv:
                    return FailureMechanismSectionAssemblyCategoryGroup.VIv;
                case FailureMechanismSectionCategoryGroup.VIIv:
                    return FailureMechanismSectionAssemblyCategoryGroup.VIIv;
                case FailureMechanismSectionCategoryGroup.None:
                    return FailureMechanismSectionAssemblyCategoryGroup.None;
                default:
                    throw new NotSupportedException();
            }
        }

        #region Simple Assessment

        [Test]
        public void AssembleSimpleAssessment_WithInvalidEnumInput_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleSimpleAssessment((SimpleAssessmentResultType) 99);

                // Assert
                const string expectedMessage = "The value of argument 'input' (99) is invalid for Enum type 'SimpleAssessmentResultType'.";
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                StringAssert.StartsWith(expectedMessage, exception.Message);
                Assert.IsInstanceOf<InvalidEnumArgumentException>(exception.InnerException);
            }
        }

        [Test]
        public void AssembleSimpleAssessment_WithValidInput_InputCorrectlySetToKernel()
        {
            // Setup
            const SimpleAssessmentResultType assessmentResult = SimpleAssessmentResultType.AssessFurther;
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                calculator.AssembleSimpleAssessment(assessmentResult);

                // Assert
                Assert.AreEqual(SimpleCalculationResult.VB, kernel.SimpleAssessmentFailureMechanismsInput);
            }
        }

        [Test]
        public void AssembleSimpleAssessment_KernelWithCompleteOutput_OutputCorrectlyReturnedByCalculator()
        {
            // Setup
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                FailureMechanismSectionAssembly assembly = calculator.AssembleSimpleAssessment(SimpleAssessmentResultType.AssessFurther);

                // Assert
                AssertCalculatorOutput(kernel.FailureMechanismSectionAssemblyCategoryResult, assembly);
            }
        }

        [Test]
        public void AssembleSimpleAssessment_KernelWithInvalidOutput_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult((FailureMechanismSectionCategoryGroup) 99, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleSimpleAssessment(SimpleAssessmentResultType.AssessFurther);

                // Assert
                const string expectedMessage = "The value of argument 'originalGroup' (99) is invalid for Enum type 'FailureMechanismSectionCategoryGroup'.";
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                StringAssert.StartsWith(expectedMessage, exception.Message);
                Assert.IsInstanceOf<InvalidEnumArgumentException>(exception.InnerException);
            }
        }

        [Test]
        public void AssembleSimpleAssessment_KernelThrowsException_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.ThrowExceptionOnCalculate = true;

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleSimpleAssessment(SimpleAssessmentResultType.AssessFurther);

                // Assert
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                Assert.IsInstanceOf<Exception>(exception.InnerException);
                Assert.AreEqual(exception.InnerException.Message, exception.Message);
            }
        }

        [Test]
        public void AssembleSimpleAssessmentValidityOnly_WithInvalidEnumInput_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleSimpleAssessment((SimpleAssessmentResultValidityOnlyType) 99);

                // Assert
                const string expectedMessage = "The value of argument 'input' (99) is invalid for Enum type 'SimpleAssessmentResultValidityOnlyType'.";
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                StringAssert.StartsWith(expectedMessage, exception.Message);
                Assert.IsInstanceOf<InvalidEnumArgumentException>(exception.InnerException);
            }
        }

        [Test]
        public void AssembleSimpleAssessmentValidityOnly_WithValidInput_InputCorrectlySetToKernel()
        {
            // Setup
            const SimpleAssessmentResultValidityOnlyType assessmentResult = SimpleAssessmentResultValidityOnlyType.Applicable;
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                calculator.AssembleSimpleAssessment(assessmentResult);

                // Assert
                Assert.AreEqual(SimpleCalculationResultValidityOnly.WVT, kernel.SimpleAssessmentFailureMechanismsValidityOnlyInput);
            }
        }

        [Test]
        public void AssembleSimpleAssessmentValidityOnly_KernelWithCompleteOutput_OutputCorrectlyReturnedByCalculator()
        {
            // Setup
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                FailureMechanismSectionAssembly assembly = calculator.AssembleSimpleAssessment(SimpleAssessmentResultValidityOnlyType.NotApplicable);

                // Assert
                AssertCalculatorOutput(kernel.FailureMechanismSectionAssemblyCategoryResult, assembly);
            }
        }

        [Test]
        public void AssembleSimpleAssessmentValidityOnly_KernelWithInvalidOutput_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult((FailureMechanismSectionCategoryGroup) 99, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleSimpleAssessment(SimpleAssessmentResultValidityOnlyType.Applicable);

                // Assert
                const string expectedMessage = "The value of argument 'originalGroup' (99) is invalid for Enum type 'FailureMechanismSectionCategoryGroup'.";
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                StringAssert.StartsWith(expectedMessage, exception.Message);
                Assert.IsInstanceOf<InvalidEnumArgumentException>(exception.InnerException);
            }
        }

        [Test]
        public void AssembleSimpleAssessmentValidityOnly_KernelThrowsException_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.ThrowExceptionOnCalculate = true;

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleSimpleAssessment(SimpleAssessmentResultValidityOnlyType.Applicable);

                // Assert
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                Assert.IsInstanceOf<Exception>(exception.InnerException);
                Assert.AreEqual(exception.InnerException.Message, exception.Message);
            }
        }

        #endregion

        #region Detailed Assessment

        [Test]
        public void AssembleDetailedAssessment_WithInvalidEnumInput_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextDouble(),
                                                            random.NextDouble(),
                                                            (FailureMechanismSectionAssemblyCategoryGroup) 99)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleDetailedAssessment(probability, categories);

                // Assert
                const string expectedMessage = "The value of argument 'category' (99) is invalid for Enum type 'FailureMechanismSectionAssemblyCategoryGroup'.";
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                StringAssert.StartsWith(expectedMessage, exception.Message);
                Assert.IsInstanceOf<InvalidEnumArgumentException>(exception.InnerException);
            }
        }

        [Test]
        public void AssembleDetailedAssessment_WithValidInput_InputCorrectlySetToKernel()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextRoundedDouble(0.0, 0.5),
                                                            random.NextRoundedDouble(0.6, 1.0),
                                                            FailureMechanismSectionAssemblyCategoryGroup.IIv)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                calculator.AssembleDetailedAssessment(probability, categories);

                // Assert
                Assert.AreEqual(probability, kernel.DetailedAssessmentFailureMechanismFromProbabilityInput.Probability);

                FailureMechanismSectionCategory actualCategory = kernel.DetailedAssessmentFailureMechanismFromProbabilityInput.Categories.Single();
                FailureMechanismSectionAssemblyCategory expectedCategory = categories.Single();
                Assert.AreEqual(expectedCategory.LowerBoundary, actualCategory.LowerBoundary);
                Assert.AreEqual(expectedCategory.UpperBoundary, actualCategory.UpperBoundary);
                Assert.AreEqual(FailureMechanismSectionCategoryGroup.IIv, actualCategory.CategoryGroup);
            }
        }

        [Test]
        public void AssembleDetailedAssessment_KernelWithCompleteOutput_OutputCorrectlyReturnedByCalculator()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextRoundedDouble(0.0, 0.5),
                                                            random.NextRoundedDouble(0.6, 1.0),
                                                            FailureMechanismSectionAssemblyCategoryGroup.IIv)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                FailureMechanismSectionAssembly assembly = calculator.AssembleDetailedAssessment(probability, categories);

                // Assert
                AssertCalculatorOutput(kernel.FailureMechanismSectionAssemblyCategoryResult, assembly);
            }
        }

        [Test]
        public void AssembleDetailedAssessment_KernelWithInvalidOutput_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextRoundedDouble(0.0, 0.5),
                                                            random.NextRoundedDouble(0.6, 1.0),
                                                            FailureMechanismSectionAssemblyCategoryGroup.IIv)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult((FailureMechanismSectionCategoryGroup) 99, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleDetailedAssessment(probability, categories);

                // Assert
                const string expectedMessage = "The value of argument 'originalGroup' (99) is invalid for Enum type 'FailureMechanismSectionCategoryGroup'.";
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                StringAssert.StartsWith(expectedMessage, exception.Message);
                Assert.IsInstanceOf<InvalidEnumArgumentException>(exception.InnerException);
            }
        }

        [Test]
        public void AssembleDetailedAssessment_KernelThrowsException_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextRoundedDouble(0.0, 0.5),
                                                            random.NextRoundedDouble(0.6, 1.0),
                                                            FailureMechanismSectionAssemblyCategoryGroup.IIv)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.ThrowExceptionOnCalculate = true;

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleDetailedAssessment(probability, categories);

                // Assert
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                Assert.IsInstanceOf<Exception>(exception.InnerException);
                Assert.AreEqual(exception.InnerException.Message, exception.Message);
            }
        }

        [Test]
        public void AssembleDetailedAssessmentWithLengthEffect_WithInvalidEnumInput_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            double n = random.NextRoundedDouble(1.0, 10.0);
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextDouble(),
                                                            random.NextDouble(),
                                                            (FailureMechanismSectionAssemblyCategoryGroup) 99)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleDetailedAssessment(probability, categories, n);

                // Assert
                const string expectedMessage = "The value of argument 'category' (99) is invalid for Enum type 'FailureMechanismSectionAssemblyCategoryGroup'.";
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                StringAssert.StartsWith(expectedMessage, exception.Message);
                Assert.IsInstanceOf<InvalidEnumArgumentException>(exception.InnerException);
            }
        }

        [Test]
        public void AssembleDetailedAssessmentWithLengthEffect_WithValidInput_InputCorrectlySetToKernel()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            double n = random.NextRoundedDouble(1.0, 10.0);
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextRoundedDouble(0.0, 0.5),
                                                            random.NextRoundedDouble(0.6, 1.0),
                                                            FailureMechanismSectionAssemblyCategoryGroup.IIv)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                calculator.AssembleDetailedAssessment(probability, categories, n);

                // Assert
                Assert.AreEqual(probability, kernel.DetailedAssessmentFailureMechanismFromProbabilityWithLengthEffectInput.Probability);
                Assert.AreEqual(n, kernel.DetailedAssessmentFailureMechanismFromProbabilityWithLengthEffectInput.NValue);

                FailureMechanismSectionCategory actualCategory = kernel.DetailedAssessmentFailureMechanismFromProbabilityWithLengthEffectInput.Categories.Single();
                FailureMechanismSectionAssemblyCategory expectedCategory = categories.Single();
                Assert.AreEqual(expectedCategory.LowerBoundary, actualCategory.LowerBoundary);
                Assert.AreEqual(expectedCategory.UpperBoundary, actualCategory.UpperBoundary);
                Assert.AreEqual(FailureMechanismSectionCategoryGroup.IIv, actualCategory.CategoryGroup);
            }
        }

        [Test]
        public void AssembleDetailedAssessmentWithLengthEffect_KernelWithCompleteOutput_OutputCorrectlyReturnedByCalculator()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            double n = random.NextRoundedDouble(1.0, 10.0);
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextRoundedDouble(0.0, 0.5),
                                                            random.NextRoundedDouble(0.6, 1.0),
                                                            FailureMechanismSectionAssemblyCategoryGroup.IIv)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult(FailureMechanismSectionCategoryGroup.Iv, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                FailureMechanismSectionAssembly assembly = calculator.AssembleDetailedAssessment(probability, categories, n);

                // Assert
                AssertCalculatorOutput(kernel.FailureMechanismSectionAssemblyCategoryResult, assembly);
            }
        }

        [Test]
        public void AssembleDetailedAssessmentWithLengthEffect_KernelWithInvalidOutput_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            double n = random.NextRoundedDouble(1.0, 10.0);
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextRoundedDouble(0.0, 0.5),
                                                            random.NextRoundedDouble(0.6, 1.0),
                                                            FailureMechanismSectionAssemblyCategoryGroup.IIv)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.FailureMechanismSectionAssemblyCategoryResult = new CalculationOutput<FailureMechanismSectionAssemblyCategoryResult>(
                    new FailureMechanismSectionAssemblyCategoryResult((FailureMechanismSectionCategoryGroup) 99, Probability.NaN));

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleDetailedAssessment(probability, categories, n);

                // Assert
                const string expectedMessage = "The value of argument 'originalGroup' (99) is invalid for Enum type 'FailureMechanismSectionCategoryGroup'.";
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                StringAssert.StartsWith(expectedMessage, exception.Message);
                Assert.IsInstanceOf<InvalidEnumArgumentException>(exception.InnerException);
            }
        }

        [Test]
        public void AssembleDetailedAssessmentWithLengthEffect_KernelThrowsException_ThrowFailureMechanismSectionAssemblyCalculatorException()
        {
            // Setup
            var random = new Random(39);
            double probability = random.NextDouble();
            double n = random.NextRoundedDouble(1.0, 10.0);
            var categories = new[]
            {
                new FailureMechanismSectionAssemblyCategory(random.NextRoundedDouble(0.0, 0.5),
                                                            random.NextRoundedDouble(0.6, 1.0),
                                                            FailureMechanismSectionAssemblyCategoryGroup.IIv)
            };

            using (new AssemblyToolKernelFactoryConfig())
            {
                var factory = (TestAssemblyToolKernelFactory) AssemblyToolKernelFactory.Instance;
                FailureMechanismSectionAssemblyKernelStub kernel = factory.LastCreatedFailureMechanismSectionAssemblyKernel;
                kernel.ThrowExceptionOnCalculate = true;

                var calculator = new FailureMechanismSectionAssemblyCalculator(factory);

                // Call
                TestDelegate test = () => calculator.AssembleDetailedAssessment(probability, categories, n);

                // Assert
                var exception = Assert.Throws<FailureMechanismSectionAssemblyCalculatorException>(test);
                Assert.IsInstanceOf<Exception>(exception.InnerException);
                Assert.AreEqual(exception.InnerException.Message, exception.Message);
            }
        }

        #endregion
    }
}