public void Letting_Assert_String()
{
XmlDocument doc = new XmlDocument();
doc.LoadXml("<foo>bar</foo>");
XPathNavigator nav = doc.DocumentElement.CreateNavigator();
XPathQueryLanguage query = new XPathQueryLanguage();
object context = query.CreateMatchContext(null, doc);
query.Let(context, "x", "'bar'");
Assertion assert = new Assertion();
assert.Test = ". = $x";
Assert.IsTrue(query.Assert(assert, context, nav));
context = query.CreateMatchContext(null, doc);
query.Let(context, "x", "'foo'");
Assert.IsFalse(query.Assert(assert, context, nav));
}
public void Letting_Match()
{
XmlDocument doc = new XmlDocument();
doc.LoadXml("<foo/>");
XPathNavigator nav = doc.DocumentElement.CreateNavigator();
XPathQueryLanguage query = new XPathQueryLanguage();
Rule rule = new Rule();
rule.Context = " $ename ";
object context = query.CreateMatchContext(null, doc);
query.Let(context, "ename", "foo");
Assert.IsTrue(query.Match(rule, context, nav));
context = query.CreateMatchContext(null, doc);
query.Let(context, "ename", "bar");
Assert.IsFalse(query.Match(rule, context, nav));
}
public void MultipleLets()
{
XmlDocument doc = new XmlDocument();
doc.LoadXml("<foo><a/><a/><a/></foo>");
XPathNavigator nav = doc.DocumentElement.CreateNavigator();
XPathQueryLanguage query = new XPathQueryLanguage();
object context = query.CreateMatchContext(null, doc);
query.Let(context, "x", "3");
query.Let(context, "x", "2");
}