/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Created on Sep 4, 2011
*/
package com.bigdata.rdf.sparql.ast.eval;
/**
* Data driven test suite for named subquery evaluation (that is, for queries
* which are explicitly written using the named subquery syntax).
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class TestNamedSubQuery extends AbstractDataDrivenSPARQLTestCase {
/**
*
*/
public TestNamedSubQuery() {
}
/**
* @param name
*/
public TestNamedSubQuery(String name) {
super(name);
}
/**
* This is a version of {@link TestSubQuery#test_sparql_subselect()} which
* uses the same data and has the same results, but which uses a named
* subquery rather than a SPARQL 1.1 subselect.
*
* <pre>
* select ?x ?o
* with {
* select ?x where { ?x rdf:type foaf:Person }
* } AS %namedSet1
* where {
* ?x rdfs:label ?o
* INCLUDE %namedSet1
* }
* </pre>
*/
public void test_named_subquery() throws Exception {
new TestHelper("named-subquery").runTest();
}
// /**
// * This is a variant {@link #test_named_subquery()} in which the JOIN ON
// * query hint is used to explicitly specify NO join variables.
// */
// public void test_named_subquery_noJoinVars() throws Exception {
//
// new TestHelper("named-subquery-noJoinVars").runTest();
//
// }
/**
* Test that only projected variables are included in named-subquery
* results.
*
* <pre>
* PREFIX : <http://example.org/>
* SELECT ?s ?x
* WITH{
* SELECT ?s ?x { ?s :p ?x }
* }as %set1
* WITH{
* SELECT ?s ?fake1 ?fake2 { ?x :q ?s . LET (?fake1 := 1) . LET (?fake2 := 2) . }
* }as %set2
* WHERE {
* INCLUDE %set1
* INCLUDE %set2
* }
* </pre>
*/
public void test_named_subquery_scope() throws Exception {
new TestHelper("named-subquery-scope").runTest();
}
/**
* <pre>
* prefix : <http://www.bigdata.com/>
* PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
* PREFIX foaf: <http://xmlns.com/foaf/0.1/>
* SELECT ?a ?x ?y
* WITH {
* SELECT ?a ?x {?a :x ?x}
* } as %set1
* WITH {
* SELECT ?a ?y {?a :y ?y}
* } as %set2
* WHERE {
* OPTIONAL {INCLUDE %set1}.
* OPTIONAL {INCLUDE %set2}.
* }
* </pre>
*
* @throws Exception
*/
public void test_double_optional_include() throws Exception {
new TestHelper("double-optional-include").runTest();
}
/**
* Unit test verifies that the BINDINGS clause is presented to the named
* subquery. This is done by referencing the variable bound the BINDINGS
* clause only within the named subquery and not the main where clause.
* Thus, if the query is to be restricted, the named subquery needs to be
* imposing that restriction.
*
* <pre>
* select ?x ?o
* with {
* select ?x where { ?x rdf:type foaf:Person }
* } AS %namedSet1
* where {
* ?x rdfs:label ?o
* INCLUDE %namedSet1
* }
* bindings ?x
* {
* ( <http://www.bigdata.com/Mike> )
* }
* </pre>
*/
public void test_named_subquery_bindings() throws Exception {
new TestHelper("named-subquery-bindings").runTest();
}
/**
* Unit test verifies that the named subquery is considering the
* exogenous variables when it's the first operator in the query and
* choosing the appropriate join variables to build the hash index. You
* need to enable logging to verify that the JOIN_VARS are set correctly
* on the include (you should see VarNode(x)).
*
* <pre>
* select ?x ?o
* with {
* select ?x where { ?x rdf:type foaf:Person }
* } AS %namedSet1
* where {
* INCLUDE %namedSet1
* ?x rdfs:label ?o
* }
* bindings ?x
* {
* ( <http://www.bigdata.com/Mike> )
* }
* </pre>
*/
public void test_named_subquery_bindings_2() throws Exception {
new TestHelper("named-subquery-bindings-2").runTest();
}
}