// <summary>
// Compare two object trees. If all the descendant logical nodes
// are equivalent, return true, otherwise, return false.
// </summary>
// <param name="firstTree">The root for the first tree</param>
// <param name="secondTree">The root for the second tree</param>
// <remarks>
// Compares every event and property for each the node.
// </remarks>
// <returns>
// A structure containing result. If the returned variable name is result.
// result.Result is CompareResult.Equivalent in the case two nodes are equivalent,
// and CompareResult.Different otherwise.
// </returns>
public static TreeComparerResult CompareLogical(
Object firstTree,
Object secondTree)
{
TreeComparerResult result = TreeComparer.CompareLogical(firstTree, secondTree, TreeComparer._skipPropertiesDefault);
ObjectGraphComparer.XamlCompareParity(firstTree, secondTree, result.Result);
return(result);
}
// <summary>
// Compare two object trees. If all the descendant logical nodes
// are equivalent, return true, otherwise, return false.
// </summary>
// <param name="firstTree">The root for the first tree.</param>
// <param name="secondTree">The root for the second tree.</param>
// <param name="propertiesToIgnore">Custom list of properties to ignore.</param>
// <remarks>
// Compares every event and property for each the node.
// </remarks>
// <returns>
// A structure containing result. If the returned variable name is result.
// result.Result is CompareResult.Equivalent in the case two nodes are equivalent,
// and CompareResult.Different otherwise.
// </returns>
public static TreeComparerResult CompareLogical(
Object firstTree,
Object secondTree,
Dictionary <string, PropertyToIgnore> propertiesToIgnore)
{
if (propertiesToIgnore == null)
{
throw new ArgumentNullException("propertiesToIgnore", "Argument must be a non-null Dictionary.");
}
TreeComparerResult result = new TreeComparerResult();
result.Result = CompareResult.Equivalent;
// Validate parameters, both objects are null
if (null == firstTree && null == secondTree)
{
return(result);
}
result.Result = CompareResult.Different;
// Validate parameters, only one object is null
if (null == firstTree || null == secondTree)
{
return(result);
}
// Compare the types
if (!firstTree.GetType().Equals(secondTree.GetType()))
{
TreeComparer.SendCompareMessage("Two nodes have different types: '" + firstTree.GetType().FullName + "' vs. '" + secondTree.GetType().FullName + "'.");
TreeComparer.Break();
return(result);
}
bool same = false;
// Create hashtables that will contain objects in the trees.
// This is used to break loops.
TreeComparer._objectsInTree[0] = new List <int>();
TreeComparer._objectsInTree[1] = new List <int>();
TreeComparer._skipProperties = propertiesToIgnore;
// Include default skip properties if necessary.
if (TreeComparer._skipProperties != TreeComparer._skipPropertiesDefault)
{
TreeComparer._MergeDictionaries(TreeComparer._skipProperties, TreeComparer._skipPropertiesDefault);
}
try
{
same = CompareObjects(firstTree, secondTree);
}
finally
{
_objectsInTree[0] = null;
_objectsInTree[1] = null;
_skipProperties = null;
}
// Two trees are equivalent
if (same)
{
result.Result = CompareResult.Equivalent;
}
return(result);
}