| /* |
| * 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 com.hp.hpl.jena.sparql.algebra; |
| |
| import java.util.Arrays ; |
| import java.util.HashSet ; |
| import java.util.List ; |
| import java.util.Set ; |
| |
| import org.apache.jena.atlas.junit.BaseTest ; |
| import org.junit.Test ; |
| |
| import com.hp.hpl.jena.sparql.core.Var ; |
| import com.hp.hpl.jena.sparql.engine.main.VarFinder ; |
| import com.hp.hpl.jena.sparql.sse.SSE ; |
| |
| public class TestVarFinder extends BaseTest |
| { |
| @Test public void varfind_01_1() { varfindFixed("(bgp (?s <p> <o>))", "s") ; } |
| @Test public void varfind_01_2() { varfindOpt("(bgp (?s <p> <o>))") ; } |
| @Test public void varfind_01_3() { varfindFilter("(bgp (?s <p> <o>))") ; } |
| |
| @Test public void varfind_02_1() { varfindFixed("(graph ?g (bgp (?s <p> <o>)))", "s", "g") ; } |
| @Test public void varfind_02_2() { varfindOpt("(graph ?g (bgp (?s <p> <o>)))") ; } |
| @Test public void varfind_02_3() { varfindFilter("(graph ?g (bgp (?s <p> <o>)))") ; } |
| |
| @Test public void varfind_03_1() { varfindFixed("(filter (?s) (bgp (?s <p> <o>)))", "s") ; } |
| @Test public void varfind_03_2() { varfindOpt("(filter (?s) (bgp (?s <p> <o>)))") ; } |
| @Test public void varfind_03_3() { varfindFilter("(filter (?s) (bgp (?s <p> <o>)))", "s") ; } |
| |
| @Test public void varfind_04_1() { varfindFixed("(leftjoin (bgp (?x <q> <v>)) (filter (?s) (bgp (?s <p> <o>))))", "x") ; } |
| @Test public void varfind_04_2() { varfindOpt("(leftjoin (bgp (?x <q> <v>)) (filter (?s) (bgp (?s <p> <o>))))", "s") ; } |
| @Test public void varfind_04_3() { varfindFilter("(leftjoin (bgp (?x <q> <v>)) (filter (?s) (bgp (?s <p> <o>))))", "s") ; } |
| |
| |
| private static void varfindFixed(String string, String...vars) |
| { |
| varfind(string, vars, null, null) ; |
| } |
| |
| private static void varfindOpt(String string, String...vars) |
| { |
| varfind(string, null, vars, null) ; |
| } |
| |
| private static void varfindFilter(String string, String...vars) |
| { |
| varfind(string, null, null, vars) ; |
| } |
| |
| private static void varfind(String string, String[] varsFixed, String [] varsOpt, String [] varsFilter) |
| { |
| Op op = SSE.parseOp(string) ; |
| VarFinder vf = new VarFinder(op) ; |
| if ( varsFixed != null ) check(varsFixed, vf.getFixed()) ; |
| if ( varsOpt != null ) check(varsOpt, vf.getOpt()) ; |
| if ( varsFilter != null ) check(varsFilter, vf.getFilter()) ; |
| } |
| |
| private static void check(String[] varsExpected, Set<Var> varsFound) |
| { |
| Var[] vars = new Var[varsExpected.length] ; |
| for ( int i = 0 ; i < varsExpected.length ; i++ ) |
| { |
| Var v = Var.alloc(varsExpected[i]) ; |
| vars[i] = v ; |
| } |
| |
| List<Var> varList = Arrays.asList(vars) ; |
| HashSet<Var> varSet = new HashSet<>() ; |
| varSet.addAll(varList) ; |
| assertEquals(varSet, varsFound) ; |
| } |
| |
| } |