public void BuildReturnsSparqlResultsFormatXml()
{
TripleStore store = new MemoryTripleStore();
store.Add(new Statement(new UriRef("http://example.com/subj"), new UriRef("http://example.com/property"), new UriRef("http://example.com/obj")));
SparqlQuery query = new SparqlQuery("SELECT ?var WHERE { <http://example.com/subj> <http://example.com/property> ?var }");
SparqlResultsFormatBuilder builder = new SparqlResultsFormatBuilder();
XmlDocument resultsRaw = builder.Build(query.ExecuteEnumerator(store), query);
XmlDocument resultsCanonical = new XmlDocument();
resultsCanonical.LoadXml(resultsRaw.InnerXml);
XmlDocument expected = new XmlDocument();
expected.LoadXml(@"<sparql xmlns=""http://www.w3.org/2005/sparql-results#"">
<head>
<variable name=""var""/>
</head>
<results ordered=""false"" distinct=""false"">
<result>
<binding name=""var""><uri>http://example.com/obj</uri></binding>
</result>
</results>
</sparql>");
Assert.AreEqual(expected.InnerXml, resultsCanonical.InnerXml, "Result of query should equal expected XML");
}
public void ExecuteEnumeratorPassesSelfToTripleStore()
{
SparqlQuery query = new SparqlQuery("SELECT ?var WHERE { <http://example.com/subject> <http://example.com/predicate> ?var }");
TripleStoreStore store = new TripleStoreStore();
IEnumerator results = query.ExecuteEnumerator(store);
Assert.IsTrue(store.WasSolveCalledWith(query), "Query should invoke triple store's solve method");
}
private void AssertXPath(string xPath, SparqlQuery query, TripleStore store)
{
SparqlResultsFormatBuilder builder = new SparqlResultsFormatBuilder();
XmlDocument results = builder.Build(query.ExecuteEnumerator(store), query);
XPathNavigator nav = results.CreateNavigator();
XPathExpression expr = nav.Compile(xPath);
XmlNamespaceManager nsmgr = new XmlNamespaceManager(nav.NameTable);
nsmgr.AddNamespace("s", "http://www.w3.org/2005/sparql-results#");
expr.SetContext(nsmgr);
Assert.IsTrue(nav.Select(expr).MoveNext(), "Result of query should match XPath " + xPath + " result was " + results.InnerXml);
}