/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jena.sparql.expr;
import org.apache.jena.atlas.junit.BaseTest ;
import org.apache.jena.sparql.engine.binding.Binding ;
import org.apache.jena.sparql.expr.nodevalue.XSDFuncOp ;
import org.apache.jena.sparql.function.FunctionEnvBase ;
import org.apache.jena.sparql.sse.Item ;
import org.apache.jena.sparql.sse.SSE ;
import org.apache.jena.sparql.sse.builders.BuilderBinding ;
import org.apache.jena.sparql.util.ExprUtils ;
import org.junit.Test ;
/** Expression evaluation involving bindings.
* @see TestExpressions
* @see TestExpressions2
* @see TestExpressions3
* @see TestExprLib
* @see TestNodeValue
*/
public class TestExpressions3 extends BaseTest
{
@Test public void bound_01() { eval("BOUND(?x)", "(?x 1)", true) ; }
@Test public void bound_02() { eval("BOUND(?x)", "(?y 1)", false) ; }
@Test public void bound_03() { evalExpr("(bound 1)", "(?y 1)", false) ; }
@Test public void bound_04() { evalExpr("(bound 1)", "()", false) ; }
@Test public void bound_05() { evalExpr("(bound ?x)", "(?y 1)", false) ; }
@Test public void bound_06() { evalExpr("(bound ?x)", "(?x 1)", true) ; }
@Test public void bound_07() { evalExpr("(bound (+ ?x 1))", "(?y 1)", false) ; }
@Test public void bound_08() { evalExpr("(bound (+ ?y 1))", "(?y 1)", true) ; }
// From SPARQL syntax
private static void eval(String string, String bindingStr, boolean expected) {
Binding binding = binding(bindingStr) ;
Expr expr = ExprUtils.parse(string) ;
NodeValue nv = expr.eval(binding, FunctionEnvBase.createTest()) ;
boolean b = XSDFuncOp.booleanEffectiveValue(nv) ;
assertEquals(string, expected, b) ;
}
// From algebra/SSE
private static void evalExpr(String exprString, String bindingStr, boolean expected) {
Binding binding = binding(bindingStr) ;
Expr expr = SSE.parseExpr(exprString) ;
NodeValue nv = expr.eval(binding, FunctionEnvBase.createTest()) ;
boolean b = XSDFuncOp.booleanEffectiveValue(nv) ;
assertEquals(exprString, expected, b) ;
}
private static Binding binding(String bindingStr) {
if ( bindingStr == null || bindingStr.matches("\\s*\\(\\s*\\)\\s*") )
return null ;
Item item = SSE.parse("(binding "+bindingStr+")") ;
Binding binding = BuilderBinding.build(item) ;
return binding ;
}
}