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

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

EqualityAdapter.cs

Source: EqualityAdapter.cs Github

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...37 /​/​/​ Returns an EqualityAdapter that wraps an IEqualityComparer.38 /​/​/​ </​summary>39 public static EqualityAdapter For(IEqualityComparer comparer)40 {41 return new EqualityComparerAdapter(comparer);42 }4344 /​/​/​ <summary>45 /​/​/​ Returns an EqualityAdapter that wraps an IEqualityComparer&lt;T&gt;.46 /​/​/​ </​summary>47 public static EqualityAdapter For<T>(IEqualityComparer<T> comparer)48 {49 return new EqualityComparerAdapter<T>(comparer);50 }5152 /​/​/​ <summary>53 /​/​/​ Returns an EqualityAdapter that wraps an IComparer&lt;T&gt;.54 /​/​/​ </​summary>55 public static EqualityAdapter For<T>(IComparer<T> comparer)56 {57 return new ComparisonAdapterAdapter( ComparisonAdapter.For(comparer) );58 }5960 /​/​/​ <summary>61 /​/​/​ Returns an EqualityAdapter that wraps a Comparison&lt;T&gt;.62 /​/​/​ </​summary>63 public static EqualityAdapter For<T>(Comparison<T> comparer)64 {65 return new ComparisonAdapterAdapter( ComparisonAdapter.For(comparer) );66 }6768 class EqualityComparerAdapter : EqualityAdapter69 {70 private IEqualityComparer comparer;7172 public EqualityComparerAdapter(IEqualityComparer comparer)73 {74 this.comparer = comparer;75 }7677 public override bool ObjectsEqual(object x, object y)78 {79 return comparer.Equals(x, y);80 }81 }8283 class EqualityComparerAdapter<T> : EqualityAdapter84 {85 private IEqualityComparer<T> comparer;8687 public EqualityComparerAdapter(IEqualityComparer<T> comparer)88 {89 this.comparer = comparer;90 }9192 public override bool ObjectsEqual(object x, object y)93 {94 if (!typeof(T).IsAssignableFrom(x.GetType()))95 throw new ArgumentException("Cannot compare " + x.ToString());9697 if (!typeof(T).IsAssignableFrom(y.GetType()))98 throw new ArgumentException("Cannot compare to " + y.ToString());99100 return comparer.Equals((T)x, (T)y);101 } ...

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EqualityComparerAdapter

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1using NUnit.Framework;2using NUnit.Framework.Constraints;3using System;4using System.Collections.Generic;5{6 {7 public static void Main(string[] args)8 {9 var list1 = new List<int> { 1, 2, 3, 4 };10 var list2 = new List<int> { 1, 2, 3, 4 };11 Assert.AreEqual(list1, list2, new EqualityComparerAdapter<int>((x, y) => x == y));12 }13 }14}

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EqualityComparerAdapter

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1using System;2using NUnit.Framework.Constraints;3{4 {5 static void Main(string[] args)6 {7 int[] a = { 1, 2, 3, 4, 5 };8 double[] b = { 1.0, 2.0, 3.0, 4.0, 5.0 };9 Assert.That(a, Is.EqualTo(b).Using(new EqualityComparerAdapter<int, double>((x, y) => x == y)));10 }11 }12}

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EqualityComparerAdapter

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1using NUnit.Framework;2using NUnit.Framework.Constraints;3using System.Collections.Generic;4using System.Linq;5{6 {7 public void TestMethod()8 {9 List<int> list1 = new List<int>() { 1, 2, 3, 4 };10 List<int> list2 = new List<int>() { 1, 2, 3, 4 };11 Assert.That(list1, Is.EqualTo(list2).Using(EqualityComparerAdapter<int>.Default));12 }13 }14}

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EqualityComparerAdapter

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1using System;2using System.Collections.Generic;3using NUnit.Framework.Constraints;4{5 public static void Main()6 {7 var list1 = new List<int> { 1, 2, 3 };8 var list2 = new List<int> { 1, 2, 3 };9 var list3 = new List<int> { 1, 2, 4 };10 var list4 = new List<int> { 1, 2, 3, 4 };11 var list5 = new List<int> { 1, 2, 3, 4 };12 var list6 = new List<int> { 1, 2, 3, 5 };13 var comparer = new EqualityComparerAdapter<List<int>>((x, y) => x.Count == y.Count && x.TrueForAll((item) => y.Contains(item)));14 }15}16using System;17using System.Collections.Generic;18using System.Linq;19using NUnit.Framework.Constraints;20{21 public static void Main()22 {23 var list1 = new List<int> { 1, 2, 3 };24 var list2 = new List<int> { 1, 2, 3 };25 var list3 = new List<int> { 1, 2, 4 };26 var list4 = new List<int> { 1, 2, 3, 4 };27 var list5 = new List<int> { 1, 2, 3, 4 };28 var list6 = new List<int> { 1, 2, 3

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EqualityComparerAdapter

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1using System;2using System.Collections;3using NUnit.Framework.Constraints;4using NUnit.Framework;5{6 {7 public int Compare(object x, object y)8 {9 return 0;10 }11 }12 {13 public string Name { get; set; }14 public int Age { get; set; }15 }16 {17 public void TestMethod()18 {19 Employee e1 = new Employee() { Name = "John", Age = 30 };20 Employee e2 = new Employee() { Name = "John", Age = 30 };21 Assert.That(e1, Is.EqualTo(e2).Using(new CustomComparer()));22 }23 }24}

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EqualityComparerAdapter

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1using System;2using System.Collections.Generic;3using NUnit.Framework.Constraints;4{5 public string Name { get; set; }6 public int Age { get; set; }7}8{9 static void Main(string[] args)10 {11 {12 new Person { Name = "John", Age = 25 },13 new Person { Name = "Mary", Age = 30 },14 new Person { Name = "Mike", Age = 35 }15 };16 {17 new Person { Name = "John", Age = 25 },18 new Person { Name = "Mary", Age = 30 },19 new Person { Name = "Mike", Age = 35 }20 };21 Console.WriteLine(people1.Equals(people2));22 Console.WriteLine(EqualityComparer<List<Person>>.Default.Equals(people1, people2));23 var comparer = new EqualityComparerAdapter<List<Person>>((x, y) => x.Count == y.Count);24 Console.WriteLine(comparer.Equals(people1, people2));25 }26}27NUnit.Framework.Constraints.EqualityComparerAdapter<T>.EqualityComparerAdapter(Func<T, T, bool> equalityComparison)28NUnit.Framework.Constraints.EqualityComparerAdapter<T>.Equals(T x, T y)29NUnit.Framework.Constraints.EqualityComparerAdapter<T>.GetHashCode(T obj)30NUnit.Framework.Constraints.EqualityComparerAdapter<T>.Equals(object x, object y)31NUnit.Framework.Constraints.EqualityComparerAdapter<T>.GetHashCode(object obj)32NUnit.Framework.Constraints.EqualityComparerAdapter<T>.DefaultEquals(T x, T y)33NUnit.Framework.Constraints.EqualityComparerAdapter<T>.DefaultGetHashCode(T obj)34NUnit.Framework.Constraints.EqualityComparerAdapter<T>.DefaultEquals(object x, object y)35NUnit.Framework.Constraints.EqualityComparerAdapter<T>.DefaultGetHashCode(object obj)36NUnit.Framework.Constraints.EqualityComparerAdapter<T>.DefaultEquals(T x, T y)

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