Equality rules

A small library which provides a fluent interface to build & create instances of IEqualityComparer<T>, which test value equality between two object instances.

Example

This example builds comparer which is an implementation of IEqualityComparer<ASampleClass>. It will consider two objects equal if:

• Their PropertyTwo property values are equal
• And their PropertyOne property values are equal (using a case-insensitive match)
• PropertyThree won't be considered for determining equality

// Here's a sample class to compare
public class ASampleClass
{
  public string PropertyOne { get; set; }
  public int PropertyTwo { get; set; }
  public DateTime PropertyThree { get; set; }
}

var comparer = new EqualityBuilder<ASampleClass>()
  .ForProperty(x => x.PropertyOne, c => c.UsingComparer(StringComparer.InvariantCultureIgnoreCase))
  .ForProperty(x => x.PropertyTwo)
  .Build();

Documentation

Full documentation is available on the wiki for this repository. This includes an exploration of how to add rules (including functionality not demonstrated in the example above). It also includes a short piece on integrating with dependency injection frameworks.