Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use ComparerAdapter class of NUnit.Framework.Constraints package

Best Nunit code snippet using NUnit.Framework.Constraints.ComparerAdapter

ComparisonAdapter.cs

Source:ComparisonAdapter.cs

...27        /// Returns a ComparisonAdapter that wraps an <see cref="IComparer"/>28        /// </summary>29        public static ComparisonAdapter For(IComparer comparer)30        {31            return new ComparerAdapter(comparer);32        }33        /// <summary>34        /// Returns a ComparisonAdapter that wraps an <see cref="IComparer{T}"/>35        /// </summary>36        public static ComparisonAdapter For<T>(IComparer<T> comparer)37        {38            return new ComparerAdapter<T>(comparer);39        }40        /// <summary>41        /// Returns a ComparisonAdapter that wraps a <see cref="Comparison{T}"/>42        /// </summary>43        public static ComparisonAdapter For<T>(Comparison<T> comparer)44        {45            return new ComparisonAdapterForComparison<T>(comparer);46        }47        /// <summary>48        /// Compares two objects49        /// </summary>50        public abstract int Compare(object expected, object actual);51        class DefaultComparisonAdapter : ComparerAdapter52        {53            /// <summary>54            /// Construct a default ComparisonAdapter55            /// </summary>56            public DefaultComparisonAdapter() : base( NUnitComparer.Default ) { }57        }58        class ComparerAdapter : ComparisonAdapter59        {60            private readonly IComparer comparer;61            /// <summary>62            /// Construct a ComparisonAdapter for an <see cref="IComparer"/>63            /// </summary>64            public ComparerAdapter(IComparer comparer)65            {66                this.comparer = comparer;67            }68            /// <summary>69            /// Compares two objects70            /// </summary>71            /// <param name="expected"></param>72            /// <param name="actual"></param>73            /// <returns></returns>74            public override int Compare(object expected, object actual)75            {76                return comparer.Compare(expected, actual);77            }78        }79        /// <summary>80        /// ComparerAdapter extends <see cref="ComparisonAdapter"/> and81        /// allows use of an <see cref="IComparer{T}"/> or <see cref="Comparison{T}"/>82        /// to actually perform the comparison.83        /// </summary>84        class ComparerAdapter<T> : ComparisonAdapter85        {86            private readonly IComparer<T> comparer;87            /// <summary>88            /// Construct a ComparisonAdapter for an <see cref="IComparer{T}"/>89            /// </summary>90            public ComparerAdapter(IComparer<T> comparer)91            {92                this.comparer = comparer;93            }94            /// <summary>95            /// Compare a Type T to an object96            /// </summary>97            public override int Compare(object expected, object actual)98            {99                if (!TypeHelper.TryCast(expected, out T expectedCast))100                    throw new ArgumentException($"Cannot compare {expected?.ToString() ?? "null"}");101                if (!TypeHelper.TryCast(actual, out T actualCast))102                    throw new ArgumentException($"Cannot compare to {actual?.ToString() ?? "null"}");103                return comparer.Compare(expectedCast, actualCast);104            }...

ComparerAdapter

Using AI Code Generation

1using NUnit.Framework.Constraints;2using NUnit.Framework;3using System.Collections.Generic;4{5    {6        public void TestMethod1()7        {8            var list1 = new List<string>() { "a", "b", "c" };9            var list2 = new List<string>() { "a", "b", "c" };10            var result = list1.Equals(list2, new ComparerAdapter<string>((x, y) => x == y));11            Assert.IsTrue(result);12        }13    }14}15Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NUnitTestProject1", "NUnitTestProject1\NUnitTestProject1.csproj", "{B8C8A0F0-7B31-4A3B-9F9C-4A3A1B4DB1F4}"16	GlobalSection(SolutionConfigurationPlatforms) = preSolution17	GlobalSection(ProjectConfigurationPlatforms) = postSolution18		{B8C8A0F0-7B31-4A3B-9F9C-4A3A1B4DB1F4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU19		{B8C8A0F0-7B31-4A3B-9F9C-4A3A1B4DB1F4}.Debug|Any CPU.Build.0 = Debug|Any CPU20		{B8C8A0F0-7B31-4A3B-9F9C-4A3A1B4DB1F4}.Release|Any CPU.ActiveCfg = Release|Any CPU21		{B8C8A0F0-7B31-4A3B-9F9C-

ComparerAdapter

Using AI Code Generation

1using System;2using System.Collections;3using NUnit.Framework.Constraints;4using NUnit.Framework;5{6    {7        public void TestMethod1()8        {9            var a = new[] { 1, 2, 3 };10            var b = new[] { 1, 2, 3 };11            var comparer = new ComparerAdapter((x, y) => (int)x - (int)y);12            Assert.That(a, Is.EqualTo(b).Using(comparer));13        }14    }15}16Assert.That(a, Is.EquivalentTo(b));17using System;18using System.Collections;19using NUnit.Framework.Constraints;20using NUnit.Framework;21{22    {23        public void TestMethod1()24        {25            var a = new[] { 1, 2, 3 };26            var b = new[] { 2, 3, 1 };27            Assert.That(a, Is.EquivalentTo(b));28        }29    }30}31var a = new[] { 1, 2, 3, 3 };32var b = new[] { 3, 3, 1, 2 };33Assert.That(a, Is.EquivalentTo(b));34Assert.That(a, Is.EquivalentTo(b).Using(comparer));35using System;36using System.Collections;37using NUnit.Framework.Constraints;38using NUnit.Framework;39{40    {41        public void TestMethod1()42        {

ComparerAdapter

Using AI Code Generation

1using NUnit.Framework.Constraints;2using NUnit.Framework;3using System;4using System.Collections.Generic;5{6    {7        public void TestMethod1()8        {9            List<int> list1 = new List<int>() { 1, 2, 3, 4, 5 };10            List<int> list2 = new List<int>() { 1, 2, 3, 4, 5 };11            Assert.That(list1, Is.EqualTo(list2).Using(new ComparerAdapter<int>((x, y) => x == y ? 0 : 1)));12        }13    }14}15[TestCaseSource("Name of the method")]16public void TestMethod1()17using NUnit.Framework;18using System;19using System.Collections.Generic;20{21    {22        {23            {24                yield return new TestCaseData(1, 1, 2);25                yield return new TestCaseData(2, 3, 5);26                yield return new TestCaseData(3, 4, 7);27            }28        }29        [TestCaseSource("TestCases")]30        public void TestMethod1(int a, int b, int c)31        {32            Assert.AreEqual(c, a + b);33        }34    }35}

ComparerAdapter

Using AI Code Generation

1using NUnit.Framework.Constraints;2using NUnit.Framework;3using System.Collections.Generic;4{5    {6        public void TestMethod1()7        {8            List<double> list1 = new List<double>();9            list1.Add(1.0);10            list1.Add(2.0);11            list1.Add(3.0);12            List<double> list2 = new List<double>();13            list2.Add(1.0);14            list2.Add(2.0);15            list2.Add(3.0);16            Assert.That(list1, Is.EqualTo(list2).Using<double>(ComparerAdapter<double>.Default));17        }

ComparerAdapter

Using AI Code Generation

1using NUnit.Framework.Constraints;2using NUnit.Framework;3using System;4{5    {6        public void TestMethod1()7        {8            var obj1 = new { Name = "John", Age = 25 };9            var obj2 = new { Name = "John", Age = 25 };10            Assert.That(obj1, new ComparerAdapter<object>((x, y) => x.Equals(y)));11        }12    }13}14ComparerAdapter(IComparer comparer)15Compare(object x, object y)16using NUnit.Framework.Constraints;17using NUnit.Framework;18using System;19{20    {21        public void TestMethod1()22        {23            var obj1 = new { Name = "John", Age = 25 };24            var obj2 = new { Name = "John", Age = 25 };25            Assert.That(obj1, new ComparerAdapter<object>((x, y) => x.Equals(y)));26        }27    }28}29using NUnit.Framework.Constraints;30using NUnit.Framework;31using System;32{33    {

ComparerAdapter

Using AI Code Generation

1using NUnit.Framework.Constraints;2using NUnit.Framework;3using System;4{5    {6        static void Main(string[] args)7        {8            var comparer = new ComparerAdapter<int>((x, y) => x == y);9            Assert.That(5, Is.EqualTo(5).Using(comparer));10        }11    }12}

ComparerAdapter

Using AI Code Generation

1using NUnit.Framework;2using NUnit.Framework.Constraints;3{4    {5        public void TestMethod()6        {7            var comparer = new ComparerAdapter<int>((x, y) => x == y);8            Assert.That(1, Is.EqualTo(1).Using(comparer));9        }10    }11}12using NUnit.Framework;13using NUnit.Framework.Constraints;14{15    {16        public void TestMethod()17        {18            var comparer = new ComparerAdapter<int>((x, y) => x == y);19            Assert.That(1, Is.EqualTo(1).Using(comparer));20        }21    }22}23using NUnit.Framework;24using NUnit.Framework.Constraints;25{26    {27        public void TestMethod()28        {29            var comparer = new ComparerAdapter<int>((x, y) => x == y);30            Assert.That(1, Is.EqualTo(1).Using(comparer));31        }32    }33}34using NUnit.Framework;35using NUnit.Framework.Constraints;36{37    {38        public void TestMethod()39        {40            var comparer = new ComparerAdapter<int>((x, y) => x == y);41            Assert.That(1, Is.EqualTo(1).Using(comparer));42        }43    }44}45using NUnit.Framework;46using NUnit.Framework.Constraints;47{48    {49        public void TestMethod()50        {51            var comparer = new ComparerAdapter<int>((x, y) => x == y);52            Assert.That(1, Is.EqualTo(1).Using(comparer));53        }54    }55}56using NUnit.Framework;57using NUnit.Framework.Constraints;58{59    {

ComparerAdapter

Using AI Code Generation

1using System;2using System.Collections.Generic;3using NUnit.Framework.Constraints;4{5    {6        static void Main(string[] args)7        {8            List<int> list1 = new List<int> { 1, 2, 3, 4 };9            List<int> list2 = new List<int> { 1, 2, 3, 4 };10            ComparerAdapter comparer = new ComparerAdapter();11            bool result = comparer.Compare(list1, list2);12            Console.WriteLine(result);13        }14    }15}

ComparerAdapter

Using AI Code Generation

1using NUnit.Framework.Constraints;2using System.Collections.Generic;3{4    {5        public void ComparerAdapterTest1()6        {7            List<int> list1 = new List<int>() { 1, 2, 3, 4, 5 };8            List<int> list2 = new List<int>() { 1, 2, 3, 4, 5 };9            Assert.That(list1, Is.EqualTo(list2).Using(new ComparerAdapter<int>((x, y) => x.CompareTo(y))));10        }11    }12}13NUnit 3.0.1 (.NET 4.0.30319.42000)14Copyright (c) 2002-2015 Charlie Poole15Copyright (c) 2000-2015 NUnit Software16Results (nunit3) saved as TestResult.xml

Nunit tutorial

Nunit is a well-known open-source unit testing framework for C#. This framework is easy to work with and user-friendly. LambdaTest’s NUnit Testing Tutorial provides a structured and detailed learning environment to help you leverage knowledge about the NUnit framework. The NUnit tutorial covers chapters from basics such as environment setup to annotations, assertions, Selenium WebDriver commands, and parallel execution using the NUnit framework.

Chapters

NUnit Environment Setup - All the prerequisites and setup environments are provided to help you begin with NUnit testing.
NUnit With Selenium - Learn how to use the NUnit framework with Selenium for automation testing and its installation.
Selenium WebDriver Commands in NUnit - Leverage your knowledge about the top 28 Selenium WebDriver Commands in NUnit For Test Automation. It covers web browser commands, web element commands, and drop-down commands.
NUnit Parameterized Unit Tests - Tests on varied combinations may lead to code duplication or redundancy. This chapter discusses how NUnit Parameterized Unit Tests and their methods can help avoid code duplication.
NUnit Asserts - Learn about the usage of assertions in NUnit using Selenium
NUnit Annotations - Learn how to use and execute NUnit annotations for Selenium Automation Testing
Generating Test Reports In NUnit - Understand how to use extent reports and generate reports with NUnit and Selenium WebDriver. Also, look into how to capture screenshots in NUnit extent reports.
Parallel Execution In NUnit - Parallel testing helps to reduce time consumption while executing a test. Deep dive into the concept of Specflow Parallel Execution in NUnit.