private void Test_correctness_of_query(int queryIndex)
{
Tuple <System.Linq.IQueryable <IPerson>, string, string, string, string, string, string> query = _testQueries[queryIndex];
string computedCommandText = string.Empty;
string computedMetaGraphVariableName = string.Empty;
string computedEntityVariableName = string.Empty;
string computedSubjectVariableName = string.Empty;
string computedPredicateVariableName = string.Empty;
string computedObjectVariableName = string.Empty;
IEnumerable <EntityId> actualEntities = new HashSet <EntityId>();
_entitySource.Setup(e => e.ExecuteEntityQuery(It.IsAny <Query>(), out actualEntities)).Returns <Query, IEnumerable <EntityId> >((model, resultingEntities) =>
{
GenericSparqlQueryVisitor visitor = VisitModel(model);
computedCommandText = visitor.CommandText;
computedMetaGraphVariableName = visitor.Variables.MetaGraph;
computedEntityVariableName = visitor.Variables.Entity;
computedSubjectVariableName = visitor.Variables.Subject;
computedPredicateVariableName = visitor.Variables.Predicate;
computedObjectVariableName = visitor.Variables.Object;
resultingEntities = actualEntities;
return(GetSamplePersonTriples(5));
});
query.Item1.ToList();
computedCommandText = Regex.Replace(computedCommandText, @"\s+", string.Empty).Trim();
var expectedText = Regex.Replace(query.Item2, @"\s+", string.Empty).Trim();
Assert.That(computedCommandText, Is.EqualTo(expectedText));
Assert.That(computedMetaGraphVariableName, Is.EqualTo(query.Item3));
Assert.That(computedEntityVariableName, Is.EqualTo(query.Item4));
Assert.That(computedSubjectVariableName, Is.EqualTo(query.Item5));
Assert.That(computedPredicateVariableName, Is.EqualTo(query.Item6));
Assert.That(computedObjectVariableName, Is.EqualTo(query.Item7));
}
protected GenericSparqlQueryVisitor VisitModel(Query queryModel)
{
GenericSparqlQueryVisitor visitor = new GenericSparqlQueryVisitor();
visitor.MetaGraphUri = new Uri("http://app.magi/graphs");
visitor.VisitQuery(queryModel);
return(visitor);
}
/// <inheritdoc />
public virtual SparqlQuery GetSparqlQuery(IQuery sparqlQuery, out SparqlQueryVariables variables)
{
GenericSparqlQueryVisitor queryVisitor = new GenericSparqlQueryVisitor()
{
MetaGraphUri = MetaGraphUri
};
queryVisitor.VisitQuery(sparqlQuery);
variables = queryVisitor.Variables;
SparqlQueryParser parser = new SparqlQueryParser();
return(parser.ParseFromString(queryVisitor.CommandText));
}