/// <summary>
/// Compares xsi:type attribute values
/// </summary>
private ComparisonState CompareXsiType(XmlAttribute control,
XPathContext controlContext,
XmlAttribute test,
XPathContext testContext)
{
bool mustChangeControlContext = control != null;
bool mustChangeTestContext = test != null;
if (!mustChangeControlContext && !mustChangeTestContext)
{
return(new OngoingComparisonState(this));
}
bool attributePresentOnBothSides = mustChangeControlContext &&
mustChangeTestContext;
try {
XmlQualifiedName controlAttrName = null;
if (mustChangeControlContext)
{
controlAttrName = control.GetQName();
controlContext.AddAttribute(controlAttrName);
controlContext.NavigateToAttribute(controlAttrName);
}
XmlQualifiedName testAttrName = null;
if (mustChangeTestContext)
{
testAttrName = test.GetQName();
testContext.AddAttribute(testAttrName);
testContext.NavigateToAttribute(testAttrName);
}
return(Compare(new Comparison(ComparisonType.ATTR_NAME_LOOKUP,
control, GetXPath(controlContext),
controlAttrName,
GetParentXPath(controlContext),
test, GetXPath(testContext),
testAttrName, GetParentXPath(testContext)))
.AndIfTrueThen(attributePresentOnBothSides,
() => CompareAttributeExplicitness(control, controlContext,
test, testContext))
.AndIfTrueThen(attributePresentOnBothSides,
new Comparison(ComparisonType.ATTR_VALUE,
control, GetXPath(controlContext),
ValueAsQName(control),
GetParentXPath(controlContext),
test, GetXPath(testContext),
ValueAsQName(test),
GetParentXPath(testContext))));
} finally {
if (mustChangeControlContext)
{
controlContext.NavigateToParent();
}
if (mustChangeTestContext)
{
testContext.NavigateToParent();
}
}
}
private XPathContext GetXPathForAttribute(XmlAttribute a)
{
XPathContext elementContext = GetXPathForNonAttribute(a.OwnerElement);
XmlQualifiedName q = Nodes.GetQName(a);
elementContext.AddAttribute(q);
elementContext.NavigateToAttribute(q);
return(elementContext);
}
public void singleAttribute()
{
XPathContext ctx = new XPathContext();
ctx.SetChildren(Linqy.Singleton(new Element("foo")));
ctx.NavigateToChild(0);
ctx.AddAttribute(new XmlQualifiedName("bar"));
ctx.NavigateToAttribute(new XmlQualifiedName("bar"));
Assert.AreEqual("/foo[1]/@bar", ctx.XPath);
Assert.AreEqual("/foo[1]", ctx.ParentXPath);
}
