#region Copyright (c) 2003-2007, Luke T. Maxon
/********************************************************************************************************************
'
' Copyright (c) 2003-2007, Luke T. Maxon
' All rights reserved.
'
' Redistribution and use in source and binary forms, with or without modification, are permitted provided
' that the following conditions are met:
'
' * Redistributions of source code must retain the above copyright notice, this list of conditions and the
' following disclaimer.
'
' * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
' the following disclaimer in the documentation and/or other materials provided with the distribution.
'
' * Neither the name of the author nor the names of its contributors may be used to endorse or
' promote products derived from this software without specific prior written permission.
'
' THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
' WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
' PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
' ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
' LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
' INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
' OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
' IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
'
'*******************************************************************************************************************/
#endregion
using System;
using System.Reflection;
namespace NUnit.Extensions.Forms{
///<summary>
/// Abstract base class for control and component testers that
/// handles getting and setting properties and fields via reflection.
///</summary>
public abstract class ReflectionTester
{
/// <summary>
/// Derived testers must overtide this method to provide the object being tested.
/// </summary>
public abstract object TheObject { get; }
/// <summary>
/// Convenience accessor / mutator for any nonsupported property on a control
/// to test.
/// </summary>
/// <example>
/// ControlTester t = new ControlTester("t");
/// t["Text"] = "a";
/// AssertEqual("a", t["Text"]);
/// </example>
///
public object this[string propertyName]
{
get
{
PropertyInfo prop = GetPropertyInfo(propertyName);
if (prop != null)
{
return prop.GetValue(TheObject, null);
}
else
{
FieldInfo field = GetFieldInfo(propertyName);
if (field != null)
return field.GetValue(TheObject);
}
return null;
}
set
{
PropertyInfo prop = GetPropertyInfo(propertyName);
if (prop != null)
{
prop.SetValue(TheObject, value, null);
DoAfterSetProperty(propertyName);
}
else
{
FieldInfo field = GetFieldInfo(propertyName);
if (field != null)
field.SetValue(TheObject, value);
}
}
}
/// <summary>
/// Called after this[string] is used to set a property value.
/// Typically calls "EndCurrentEdit" on the object's data binding binding for that property.
/// </summary>
protected virtual void DoAfterSetProperty(string propertyName)
{
}
private FieldInfo GetFieldInfo(string fieldName)
{
return
TheObject.GetType().GetField(fieldName,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
}
private PropertyInfo GetPropertyInfo(string propertyName)
{
return
TheObject.GetType().GetProperty(propertyName,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
}
/// <summary>
/// Simulates firing of an event by the control being tested.
/// </summary>
/// <param name="eventName">The name of the event to fire.</param>
/// <param name="args">The optional arguments required to construct the EventArgs for the specified event.</param>
public void FireEvent(string eventName, params object[] args)
{
EventHelper.RaiseEvent(TheObject, eventName, args);
}
/// <summary>
/// Simulates firing of an event by the control being tested.
/// </summary>
/// <param name="eventName">The name of the event to fire.</param>
/// <param name="arg">The EventArgs object to pass as a parameter on the event.</param>
public void FireEvent(string eventName, EventArgs arg)
{
EventHelper.RaiseEvent(TheObject, eventName, arg);
}
/// <summary>
/// Simulates firing of an event by the control being tested.
/// </summary>
/// <param name="eventName">The name of the event to fire.</param>
public void FireEvent(string eventName)
{
EventHelper.RaiseEvent(TheObject, eventName);
}
/// <summary>
/// Convenience method invoker for any nonsupported method on a control to test
/// </summary>
/// <param name="methodName">the name of the method to invoke</param>
/// <param name="args">the arguments to pass into the method</param>
public object Invoke(string methodName, params object[] args)
{
return EventHelper.Call(TheObject, methodName, args);
}
}
}
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