Adds a matching criterion to the structural equality comparer.

Namespace: MbUnit.Framework
Assembly: MbUnit (in MbUnit.dll) Version: 3.3.0.0 (3.3.610.0)

Syntax

C#
public void Add<TValue>( Accessor<T, TValue> accessor, IEqualityComparer<TValue> comparer )

Visual Basic (Declaration)
Public Sub Add(Of TValue) ( _ accessor As Accessor(Of T, TValue), _ comparer As IEqualityComparer(Of TValue) _ )

Parameters

accessor: Type: Gallio.Common..::.Accessor<(Of <(T, TValue>)>)
An accessor that gets a value from the tested object.

comparer: Type: System.Collections.Generic..::.IEqualityComparer<(Of <(TValue>)>)
A comparer instance, or null to use the default one (Default).

Type Parameters

TValue: The type of the value returned by the accessor.

Remarks

The values returned by the accessor are compared by using the specified comparer object.

Examples

CopyC#

public class Foo
{
    public int Value;
}

public class MyComparer : IEqualityComparer<int>
{
    public bool Equals(int x, int y)
    {
        return x == y;    
    }

    public int GetHashCode(int obj)
    {
        return obj;
    }
}

[TestFixture]
public class FooTest
{
    [Test]
    public void MyTest()
    {
        var foo1 = new Foo() { Value = 123 };    
        var foo2 = new Foo() { Value = 123 };

        Assert.AreEqual(foo1, foo2, new StructuralEqualityComparer<Foo>
        {
            { x => x.Value, new MyComparer() },
        });
    }
}

Exceptions

Exception	Condition
System..::.ArgumentNullException	The specified accessor argument is a null reference.