/*
* 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.atlas.lib.tuple;
import static org.junit.Assert.*;
import java.util.Arrays ;
import java.util.List ;
import org.apache.jena.atlas.lib.tuple.Tuple ;
import org.apache.jena.atlas.lib.tuple.TupleFactory ;
import org.apache.jena.atlas.lib.tuple.TupleMap ;
import org.junit.Test;
public class TestTupleMap {
// Check coverage
@Test
public void map_tuple_1() {
TupleMap tmap = TupleMap.create("SPO", "POS");
Tuple<String> tuple = TupleFactory.tuple("S", "P", "O");
Tuple<String> tuple2 = tmap.map(tuple);
assertEquals(tuple2.get(0), "P");
assertEquals(tuple2.get(1), "O");
assertEquals(tuple2.get(2), "S");
Tuple<String> tuple3 = tmap.unmap(tuple2);
assertEquals(tuple, tuple3);
}
@Test
public void map_tuple_2() {
TupleMap x = TupleMap.create("SPO", "POS");
Tuple<String> tuple = TupleFactory.tuple("S", "P", "O");
Tuple<String> mapped = x.map(tuple);
Tuple<String> expected = TupleFactory.tuple("P", "O", "S");
assertEquals(expected, mapped);
}
@Test
public void map_tuple_3() {
TupleMap tmap = TupleMap.create("GSPO", "OSPG");
Tuple<String> tuple = TupleFactory.tuple("G", "S", "P", "O");
Tuple<String> mapped = tmap.map(tuple);
Tuple<String> expected = TupleFactory.tuple("O", "S", "P", "G");
assertEquals(expected, mapped);
Tuple<String> unmapped = tmap.unmap(mapped);
assertEquals(TupleFactory.tuple("G", "S", "P", "O"), unmapped);
}
@Test
public void map_tuple_4() {
String[] x = {"G", "S", "P", "O"};
String[] y = {"O", "S", "P", "G"};
TupleMap tmap = TupleMap.create("Test", x, y);
Tuple<String> tuple = TupleFactory.tuple(x);
Tuple<String> mapped = tmap.map(tuple);
Tuple<String> expected = TupleFactory.tuple(y);
assertEquals(expected, mapped);
Tuple<String> unmapped = tmap.unmap(mapped);
assertEquals(TupleFactory.tuple(x), unmapped);
}
@Test
public void compile_1() {
TupleMap map = TupleMap.create("SPO", "POS");
// SPO -> POS
// col 0 goes to col 2
// col 1 goes to col 0
// col 2 goes to col 1
Integer[] expectedPut = {2, 0, 1};
assertEquals(Arrays.asList(expectedPut), map.transformPut());
Integer[] expectedGet = {1, 2, 0};
assertEquals(Arrays.asList(expectedGet), map.transformGet());
}
@Test
public void compile_2() {
TupleMap map = TupleMap.create("SPOG", "GOPS");
Integer[] expected = {3, 2, 1, 0};
assertEquals(Arrays.asList(expected), map.transformPut());
}
@Test
public void map_slot_1() {
TupleMap tmap = TupleMap.create("SPO", "POS");
Tuple<String> tuple = TupleFactory.tuple("S", "P", "O");
assertEquals("P", tmap.mapSlot(0, tuple));
assertEquals("O", tmap.mapSlot(1, tuple));
assertEquals("S", tmap.mapSlot(2, tuple));
Tuple<String> tuple1 = tmap.map(tuple);
assertEquals("S", tmap.unmapSlot(0, tuple1));
assertEquals("P", tmap.unmapSlot(1, tuple1));
assertEquals("O", tmap.unmapSlot(2, tuple1));
}
@Test
public void map_slot_2() {
TupleMap tmap = TupleMap.create("SPO", "POS");
Tuple<String> tuple = TupleFactory.tuple("S", "P", "O");
Tuple<String> tuple1 = TupleFactory.tuple
(tuple.get(tmap.mapIdx(0))
,tuple.get(tmap.mapIdx(1))
,tuple.get(tmap.mapIdx(2)) ) ;
Tuple<String> tuple2 = tmap.map(tuple);
assertEquals(tuple2, tuple1) ;
}
@Test
public void map_slot_3() {
TupleMap tmap = TupleMap.create("POS", "SPO");
Tuple<String> tuple = TupleFactory.tuple("P", "O", "S");
Tuple<String> tuple1 = TupleFactory.tuple
(tuple.get(tmap.unmapIdx(0))
,tuple.get(tmap.unmapIdx(1))
,tuple.get(tmap.unmapIdx(2)) ) ;
Tuple<String> tuple2 = tmap.unmap(tuple);
assertEquals(tuple2, tuple1) ;
}
@Test
public void map_transforms() {
TupleMap x = TupleMap.create("SPO","POS");
List<Integer> listGet = x.transformPut() ;
List<Integer> listGetExpected = Arrays.asList(2, 0, 1) ;
assertEquals(listGetExpected, listGet) ;
List<Integer> listPut = x.transformGet() ;
List<Integer> listPutExpected = Arrays.asList(1, 2, 0) ;
assertEquals(listGetExpected, listGet) ;
}
@Test
public void map_array_1() {
TupleMap x = TupleMap.create("SPO","POS");
Tuple<Integer> t = TupleFactory.tuple(2, 0, 1);
Tuple<Integer> t1 = x.map(t);
String[] array = {"X", "Y", "Z"};
assertEquals("Y", x.mapSlot(0, array)); // The 0th item after mapping is the "1"
assertEquals("Z", x.mapSlot(1, array));
assertEquals("X", x.mapSlot(2, array));
String[] array2 = new String[array.length] ;
x.map(array, array2) ;
assertArrayEquals(new String[] {"Y", "Z", "X"}, array2) ;
String[] array3 = new String[array.length] ;
x.unmap(array2, array3) ;
assertArrayEquals(array, array3) ;
}
@Test
public void map_array_2() {
// (0,1,2) -> (2,0,1) S->2 etc
// so (0,1,2) <- (1,2,0)
TupleMap x = TupleMap.create("SPO","POS");
String[] array = {"Y", "Z", "X"};
assertEquals("X", x.unmapSlot(0, array)); // The index 0 comes from position 3.
assertEquals("Y", x.unmapSlot(1, array));
assertEquals("Z", x.unmapSlot(2, array));
}
@Test
public void map_same_1() {
TupleMap x1 = TupleMap.create("SPO","POS");
TupleMap x2 = TupleMap.create("SPO","POS");
assertTrue(x1.sameMapping(x1)) ;
assertTrue(x1.sameMapping(x2)) ;
assertTrue(x2.sameMapping(x1)) ;
}
@Test
public void map_same_2() {
TupleMap x1 = TupleMap.create("SPO","POS");
TupleMap x2 = TupleMap.create("SPO","OSP");
assertFalse(x1.sameMapping(x2)) ;
assertFalse(x2.sameMapping(x1)) ;
}
@Test
public void map_reverse_1() {
TupleMap x1 = TupleMap.create("SPO","POS");
TupleMap x2 = TupleMap.create("POS","SPO");
assertTrue(x1.reverse().sameMapping(x2)) ;
assertFalse(x1.reverse().sameMapping(x1)) ;
}
@Test
public void map_reverse_2() {
TupleMap x1 = TupleMap.create("SPO","POS");
TupleMap x2 = TupleMap.create("POS","SPO");
Tuple<String> tuple = TupleFactory.tuple("X", "Y", "Z") ;
Tuple<String> tuple1 = x1.map(tuple) ;
Tuple<String> tuple2 = x2.unmap(tuple) ;
assertEquals(tuple1, tuple2) ;
}
}