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

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C# / CSharp Open Source » Testing » MockObjects 
MockObjects » DotNetMock » Dynamic » Predicates » IsIn.cs
#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 looks for an input value in an array of values.
  /// </summary>
  public class IsIn : AbstractPredicate 
  {
    private object[] _inList;
    /// <summary>
    /// Default Constructor
    /// </summary>
    /// <param name="inList">array of values to use for searching</param>
    public IsIn(params object[] inList)
    {
      if (inList.Length == 1 && inList[0].GetType().IsArray)
      {
        Array arr = (Array)inList[0];
        this._inList = new object[arr.Length];
        arr.CopyTo(this._inList, 0);
      }
      else
      {
        this._inList = inList;
      }
    }
    /// <summary>
    /// Evaluates the input value by looking within the original array list of values for the input value.
    /// </summary>
    /// <param name="inputValue">input value to look for</param>
    /// <returns>True if the input value is found, false otherwise.</returns>
    public override bool Eval(object inputValue)
    {
      foreach (object o in _inList)
      {
        if (o.Equals(inputValue))
        {
          return true;
        }
      }
      return false;
    }
    /// <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 in [{1}]",
        name,
        StringUtils.FormatArray(_inList)
        );
    }
  }
}
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