/*
* 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.tinkerpop.gremlin.process.traversal;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__;
import org.apache.tinkerpop.gremlin.process.traversal.util.AndP;
import org.apache.tinkerpop.gremlin.process.traversal.util.OrP;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.runners.Enclosed;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Random;
import java.util.function.Predicate;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
/**
* @author Daniel Kuppitz (http://gremlin.guru)
*/
@RunWith(Enclosed.class)
public class PTest {
@RunWith(Parameterized.class)
public static class ParameterizedTest {
@Parameterized.Parameters(name = "{0}.test({1}) = {2}")
public static Iterable<Object[]> data() {
return new ArrayList<>(Arrays.asList(new Object[][]{
{P.eq(0), 0, true},
{P.eq(0), 1, false},
{P.neq(0), 0, false},
{P.neq(0), 1, true},
{P.gt(0), -1, false},
{P.gt(0), 0, false},
{P.gt(0), 1, true},
{P.lt(0), -1, true},
{P.lt(0), 0, false},
{P.lt(0), 1, false},
{P.gte(0), -1, false},
{P.gte(0), 0, true},
{P.gte(0), 1, true},
{P.lte(0), -1, true},
{P.lte(0), 0, true},
{P.lte(0), 1, false},
{P.between(1, 10), 0, false},
{P.between(1, 10), 1, true},
{P.between(1, 10), 9, true},
{P.between(1, 10), 10, false},
{P.inside(1, 10), 0, false},
{P.inside(1, 10), 1, false},
{P.inside(1, 10), 9, true},
{P.inside(1, 10), 10, false},
{P.outside(1, 10), 0, true},
{P.outside(1, 10), 1, false},
{P.outside(1, 10), 9, false},
{P.outside(1, 10), 10, false},
{P.within(1, 2, 3), 0, false},
{P.within(1, 2, 3), 1, true},
{P.within(1, 2, 3), 10, false},
{P.within(Arrays.asList(1, 2, 3)), 0, false},
{P.within(Arrays.asList(1, 2, 3)), 1, true},
{P.within(Arrays.asList(1, 2, 3)), 10, false},
{P.without(1, 2, 3), 0, true},
{P.without(1, 2, 3), 1, false},
{P.without(1, 2, 3), 10, true},
{P.without(Arrays.asList(1, 2, 3)), 0, true},
{P.without(Arrays.asList(1, 2, 3)), 1, false},
{P.without(Arrays.asList(1, 2, 3)), 10, true},
{P.between("m", "n").and(P.neq("marko")), "marko", false},
{P.between("m", "n").and(P.neq("marko")), "matthias", true},
{P.between("m", "n").or(P.eq("daniel")), "marko", true},
{P.between("m", "n").or(P.eq("daniel")), "daniel", true},
{P.between("m", "n").or(P.eq("daniel")), "stephen", false},
}));
}
@Parameterized.Parameter(value = 0)
public P predicate;
@Parameterized.Parameter(value = 1)
public Object value;
@Parameterized.Parameter(value = 2)
public boolean expected;
@Test
public void shouldTest() {
assertEquals(expected, predicate.test(value));
assertEquals(!expected, predicate.clone().negate().test(value));
assertEquals(!expected, P.not(predicate).test(value));
}
@Before
public void init() {
final Object pv = predicate.getValue();
final Random r = new Random();
assertNotNull(predicate.getBiPredicate());
predicate.setValue(r.nextDouble());
assertNotNull(predicate.getValue());
predicate.setValue(pv);
assertEquals(pv, predicate.getValue());
assertNotNull(predicate.hashCode());
assertEquals(predicate, predicate.clone());
assertNotEquals(__.identity(), predicate);
boolean thrown = true;
try {
predicate.and(new CustomPredicate());
thrown = false;
} catch (IllegalArgumentException ex) {
assertEquals("Only P predicates can be and'd together", ex.getMessage());
} finally {
assertTrue(thrown);
}
thrown = true;
try {
predicate.or(new CustomPredicate());
thrown = false;
} catch (IllegalArgumentException ex) {
assertEquals("Only P predicates can be or'd together", ex.getMessage());
} finally {
assertTrue(thrown);
}
}
private class CustomPredicate implements Predicate {
@Override
public boolean test(Object o) {
return false;
}
@Override
public Predicate and(Predicate other) {
return null;
}
@Override
public Predicate negate() {
return null;
}
@Override
public Predicate or(Predicate other) {
return null;
}
}
}
public static class ConnectiveTest {
@Test
public void shouldComposeCorrectly() {
assertEquals(P.eq(1), P.eq(1));
assertEquals(P.eq(1).and(P.eq(2)), new AndP<>(Arrays.asList(P.eq(1), P.eq(2))));
assertEquals(P.eq(1).and(P.eq(2).and(P.eq(3))), new AndP<>(Arrays.asList(P.eq(1), P.eq(2), P.eq(3))));
assertEquals(P.eq(1).and(P.eq(2).and(P.eq(3).and(P.eq(4)))), new AndP<>(Arrays.asList(P.eq(1), P.eq(2), P.eq(3), P.eq(4))));
assertEquals(P.eq(1).or(P.eq(2).or(P.eq(3).or(P.eq(4)))), new OrP<>(Arrays.asList(P.eq(1), P.eq(2), P.eq(3), P.eq(4))));
assertEquals(P.eq(1).or(P.eq(2).and(P.eq(3).or(P.eq(4)))), new OrP<>(Arrays.asList(P.eq(1), new AndP<>(Arrays.asList(P.eq(2), new OrP<>(Arrays.asList(P.eq(3), P.eq(4))))))));
assertEquals(P.eq(1).and(P.eq(2).or(P.eq(3).and(P.eq(4)))), new AndP<>(Arrays.asList(P.eq(1), new OrP<>(Arrays.asList(P.eq(2), new AndP<>(Arrays.asList(P.eq(3), P.eq(4))))))));
assertEquals(P.eq(1).and(P.eq(2).and(P.eq(3).or(P.eq(4)))), new AndP<>(Arrays.asList(P.eq(1), P.eq(2), new OrP<>(Arrays.asList(P.eq(3), P.eq(4))))));
}
}
}