private static void CompareXmlNodes(XmlComparisonRules rules, string pathA, XmlNode nodeA, string pathB, XmlNode nodeB)
{
if (rules.IsIgnoredPath(pathA))
{
return;
}
if (rules.IsIgnoredPath(pathB))
{
return;
}
if ((nodeA == null) && (nodeB == null))
{
return;
}
if ((nodeA == null) || (nodeB == null))
{
throw new Exception("[" + pathA + "] (nodeA == null) || (nodeB == null)");
}
if (nodeA.GetType() != nodeB.GetType())
{
throw new Exception("[" + pathA + "] nodeA.GetType() != nodeB.GetType()");
}
// generic node comparison
CompareXmlNodeNames(pathA, nodeA, nodeB);
CompareXmlNodeTypes(pathA, nodeA, nodeB);
CompareXmlAttrColls(rules, pathA + "attr:", nodeA.Attributes, nodeB.Attributes);
if (nodeA.HasChildNodes || nodeB.HasChildNodes)
{
CompareXmlNodeLists(rules, pathA, nodeA.ChildNodes, pathB, nodeB.ChildNodes);
}
else
{
// no children - just compare value
if (String.Compare(nodeA.Value, nodeB.Value, true) != 0)
{
// values are textually different but could be numerically equal
DateTimeOffset dtoA;
DateTimeOffset dtoB;
Int32 intA;
Int32 intB;
Decimal numA;
Decimal numB;
if (BothAreDateTimes(nodeA.Value, nodeB.Value))
{
if (!CompareDateTimes(DateTimeStyles.None, nodeA.Value, nodeB.Value) &&
!CompareDateTimes(DateTimeStyles.AssumeLocal, nodeA.Value, nodeB.Value) &&
!CompareDateTimes(DateTimeStyles.AssumeUniversal, nodeA.Value, nodeB.Value) &&
!CompareDateTimes(DateTimeStyles.NoCurrentDateDefault, nodeA.Value, nodeB.Value) &&
!CompareWithDateTimeZoneParser(nodeA.Value, nodeB.Value, false) &&
!CompareWithDateTimeZoneParser(nodeA.Value, nodeB.Value, true)
)
{
// date/times are not equal!
throw new Exception(String.Format("[{0}] NodeValue (as DateTime) '{1}' != '{2}'", pathA, nodeA.Value, nodeB.Value));
}
}
else if (DateTimeOffset.TryParse(nodeA.Value, out dtoA) && DateTimeOffset.TryParse(nodeB.Value, out dtoB))
{
if (dtoA != dtoB)
{
throw new Exception(String.Format("[{0}] NodeValue (as DateTimeOffset) '{1}' != '{2}'", pathA, dtoA, dtoB));
}
}
else if (Int32.TryParse(nodeA.Value, out intA) && Int32.TryParse(nodeB.Value, out intB))
{
if (intA != intB)
{
throw new Exception(String.Format("[{0}] NodeValue (as Int32) '{1}' != '{2}'", pathA, intA, intB));
}
}
else if (Decimal.TryParse(nodeA.Value, out numA) && Decimal.TryParse(nodeB.Value, out numB))
{
if (Math.Round(numA, 12) != Math.Round(numB, 12))
{
throw new Exception(String.Format("[{0}] NodeValue (as Decimal) '{1}' != '{2}'", pathA, numA, numB));
}
}
else
{
throw new Exception(String.Format("[{0}] NodeValue '{1}' != '{2}'", pathA, nodeA.Value, nodeB.Value));
}
}
}
// specific node type comparisons
if (nodeA.GetType() == typeof(XmlElement))
{
//CompareXmlElements(ignorePaths, path + "elt:" + nodeA.Name, nodeA as XmlElement, nodeB as XmlElement);
}
else if (nodeA.GetType() == typeof(XmlDeclaration))
{
//CompareXmlDeclarations(ignorePaths, path + "decl:" + nodeA.Name, nodeA as XmlDeclaration, nodeB as XmlDeclaration);
}
else if (nodeA.GetType() == typeof(XmlText))
{
CompareXmlTexts(rules, pathA + "text:" + nodeA.Name, nodeA as XmlText, nodeB as XmlText);
}
else
{
throw new NotImplementedException("[" + pathA + "] NodeType: " + nodeA.GetType().Name);
}
}
private static void CompareXmlAttrColls(XmlComparisonRules rules, string path, XmlAttributeCollection a, XmlAttributeCollection b)
{
if (rules.IsIgnoredPath(path))
{
return;
}
if ((a == null) && (b == null))
{
return;
}
SortedDictionary <string, XmlAttribute> listA = FilterAndSortAttrColl(path, a);
SortedDictionary <string, XmlAttribute> listB = FilterAndSortAttrColl(path, b);
// get all keys
SortedSet <string> attrKeys = new SortedSet <string>();
foreach (var key in listA.Keys)
{
attrKeys.Add(key);
}
foreach (var key in listB.Keys)
{
attrKeys.Add(key);
}
// compare attrs
foreach (string attrKey in attrKeys)
{
XmlAttribute attrA;
if (!listA.TryGetValue(attrKey, out attrA))
{
continue;
}
XmlAttribute attrB;
if (listB.TryGetValue(attrKey, out attrB))
{
// both exist - compare
CompareXmlAttribute(rules, path + AttrSortKey(attrA) + "/", attrA, attrB);
}
else
{
// attrB is missing - might be optional or have a default value
if (rules.IsOptionalAttribute(path, attrKey))
{
// allowed to be missing
continue;
}
else
{
XmlDefaultAttribute defaultAttribute;
if (rules.TryGetDefaultAttribute(path, attrKey, out defaultAttribute))
{
CompareXmlAttribute(rules, path + AttrSortKey(attrA) + "/", attrA, defaultAttribute);
}
else
{
// missing and no default value - oops!
throw new Exception(String.Format("[{0}] Emitted Attribute '{1}' missing!", path, attrKey));
}
}
}
}
}