NotEqual.cs :  » Testing » MockObjects » DotNetMock » Dynamic » Predicates » C# / CSharp Open Source

#region License
// Copyright (c) 2004 Griffin Caprio & Choy Rim. All rights reserved.
#endregion
#region Imports
using System;

using DotNetMock.Util;
#endregion

namespace DotNetMock.Dynamic.Predicates{
  /// <summary>
  /// <see cref="IPredicate"/> that verifies the input value is not equal to the original value.
  /// </summary>
  public class NotEqual : AbstractPredicate
  {
    private IPredicate p;
    object _rhs;
    /// <summary>
    /// Default Constructor
    /// </summary>
    /// <param name="compare">original value to compare against</param>
    public NotEqual(object compare)
    {
      _rhs = compare;
      p = new NotPredicate(new IsEqual(compare));
    }
    /// <summary>
    /// Evaluates the input value against the original value.
    /// </summary>
    /// <param name="inputValue">input value</param>
    /// <returns>True if the input value does not equal the original value, false otherwise.</returns>
    public override bool Eval(object inputValue)
    {
      return p.Eval(inputValue);
    }
    /// <summary>
    /// Text representation of what is evaluated by the
    /// <see cref="Eval"/> method.
    /// </summary>
    public override string ExpressionAsText(string name)
    {
      return String.Format(
        "{0} is not equal to {1}",
        name,
        StringUtils.FormatScalar(_rhs)
        );
    }
  }
}