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org.umlg.sqlg.test.vertexstep.localvertexstep.TestLocalVertexStepOptional Maven / Gradle / Ivy
package org.umlg.sqlg.test.vertexstep.localvertexstep;
import org.apache.tinkerpop.gremlin.process.traversal.Path;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__;
import org.apache.tinkerpop.gremlin.structure.Graph;
import org.apache.tinkerpop.gremlin.structure.T;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.junit.Test;
import org.umlg.sqlg.test.BaseTest;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import java.util.function.Predicate;
import static org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* Date: 2016/05/04
* Time: 8:01 PM
*/
public class TestLocalVertexStepOptional extends BaseTest {
@Test
public void testLocalVertexStepOptimized() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex a11 = this.sqlgGraph.addVertex(T.label, "A", "name", "a11");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
Vertex c1 = this.sqlgGraph.addVertex(T.label, "C", "name", "c1");
a1.addEdge("ab", b1);
b1.addEdge("bc", c1);
this.sqlgGraph.tx().commit();
List paths = this.gt.V(a11).local(optional(out()).values("name")).path().toList();
assertEquals(1, paths.size());
for (Path path : paths) {
System.out.println(path);
}
List> pathsToAssert = Arrays.asList(
p -> p.size() == 2 && p.get(0).equals(a11) && p.get(1).equals("a11")
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
paths = this.gt.V(a1).local(out().out().values("name")).path().toList();
for (Path path : paths) {
System.out.println(path);
}
assertEquals(1, paths.size());
pathsToAssert = Arrays.asList(
p -> p.size() == 4 && p.get(0).equals(a1) && p.get(1).equals(b1) && p.get(2).equals(c1) && p.get(3).equals("c1")
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testLocalOptional2() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
Vertex c1 = this.sqlgGraph.addVertex(T.label, "C", "name", "c1");
a1.addEdge("ab", b1);
b1.addEdge("bc", c1);
Vertex a2 = this.sqlgGraph.addVertex(T.label, "A", "name", "a2");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B", "name", "b2");
a2.addEdge("ab", b2);
Vertex a3 = this.sqlgGraph.addVertex(T.label, "A", "name", "a3");
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V().local(optional(out()).optional(out())).path().toList();
for (Path path : paths) {
System.out.println(path);
}
assertEquals(6, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(b1) && p.get(2).equals(c1),
p -> p.size() == 2 && p.get(0).equals(b1) && p.get(1).equals(c1),
p -> p.size() == 1 && p.get(0).equals(c1),
p -> p.size() == 2 && p.get(0).equals(a2) && p.get(1).equals(b2),
p -> p.size() == 1 && p.get(0).equals(b2),
p -> p.size() == 1 && p.get(0).equals(a3)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testLocalOptionalNested() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
Vertex c1 = this.sqlgGraph.addVertex(T.label, "C", "name", "c1");
a1.addEdge("ab", b1);
b1.addEdge("bc", c1);
Vertex a2 = this.sqlgGraph.addVertex(T.label, "A", "name", "a2");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B", "name", "b2");
a2.addEdge("ab", b2);
Vertex a3 = this.sqlgGraph.addVertex(T.label, "A", "name", "a3");
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V().local(optional(out().optional(out()))).path().toList();
for (Path path : paths) {
System.out.println(path);
}
assertEquals(6, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(b1) && p.get(2).equals(c1),
p -> p.size() == 2 && p.get(0).equals(b1) && p.get(1).equals(c1),
p -> p.size() == 2 && p.get(0).equals(a2) && p.get(1).equals(b2),
p -> p.size() == 1 && p.get(0).equals(c1),
p -> p.size() == 1 && p.get(0).equals(b2),
p -> p.size() == 1 && p.get(0).equals(a3)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testUnoptimizableChooseStep() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B");
a1.addEdge("ab", b1);
a1.addEdge("ab", b2);
this.sqlgGraph.tx().commit();
List vertices = this.sqlgGraph.traversal().V(a1).local(__.choose(v -> v.label().equals("A"), out(), in())).toList();
assertEquals(2, vertices.size());
}
@Test
public void testOptional() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B", "name", "b2");
a1.addEdge("ab", b1);
a1.addEdge("ab", b2);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out()).path()).toList();
assertEquals(2, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b2)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testOptionalNested() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex a2 = this.sqlgGraph.addVertex(T.label, "A", "name", "a2");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B", "name", "b2");
Vertex c1 = this.sqlgGraph.addVertex(T.label, "C", "name", "c1");
a1.addEdge("ab", b1);
a1.addEdge("ab", b2);
b1.addEdge("bc", c1);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out().optional(out())).path()).toList();
assertEquals(2, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(b1) && p.get(2).equals(c1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b2)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
paths = this.sqlgGraph.traversal().V().hasLabel("A").local(__.optional(out().optional(out())).path()).toList();
assertEquals(3, paths.size());
pathsToAssert = Arrays.asList(
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(b1) && p.get(2).equals(c1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b2),
p -> p.size() == 1 && p.get(0).equals(a2)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testOptionalMultipleEdgeLabels() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B");
a1.addEdge("ab", b1);
a1.addEdge("ab", b2);
Vertex bb1 = this.sqlgGraph.addVertex(T.label, "BB");
Vertex bb2 = this.sqlgGraph.addVertex(T.label, "BB");
a1.addEdge("abb", bb1);
a1.addEdge("abb", bb2);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out("ab", "abb")).path()).toList();
assertEquals(4, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b2),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(bb1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(bb2)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testOptionalNestedMultipleEdgeLabels() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B");
Vertex c1 = this.sqlgGraph.addVertex(T.label, "C");
a1.addEdge("ab", b1);
a1.addEdge("ab", b2);
b1.addEdge("bc", c1);
Vertex bb1 = this.sqlgGraph.addVertex(T.label, "BB");
Vertex bb2 = this.sqlgGraph.addVertex(T.label, "BB");
Vertex cc1 = this.sqlgGraph.addVertex(T.label, "CC");
a1.addEdge("abb", bb1);
a1.addEdge("abb", bb2);
bb1.addEdge("bbcc", cc1);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out("ab", "abb").optional(out("bc", "bbcc"))).path()).toList();
assertEquals(4, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(b1) && p.get(2).equals(c1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b2),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(bb1) && p.get(2).equals(cc1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(bb2)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testOptionalOnNonExistingEdgeLabel() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
a1.addEdge("ab", b1);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out("ab", "bb")).path()).toList();
assertEquals(1, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b1)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out("bb")).path()).toList();
assertEquals(1, paths.size());
pathsToAssert = Arrays.asList(
p -> p.size() == 1 && p.get(0).equals(a1)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testMultipleNestedOptional() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B");
Vertex c1 = this.sqlgGraph.addVertex(T.label, "C");
Vertex cc1 = this.sqlgGraph.addVertex(T.label, "CC");
Vertex cc2 = this.sqlgGraph.addVertex(T.label, "CC");
a1.addEdge("ab", b1);
a1.addEdge("ab", b2);
b1.addEdge("bc", c1);
b2.addEdge("bcc", cc2);
c1.addEdge("ccc", cc1);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out("ab").optional(out("bc"))).path()).toList();
assertEquals(2, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(b1) && p.get(2).equals(c1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b2)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out("ab").optional(out("bc"))).out().path()).toList();
assertEquals(2, paths.size());
pathsToAssert = Arrays.asList(
p -> p.size() == 4 && p.get(0).equals(a1) && p.get(1).equals(b1) && p.get(2).equals(c1) && p.get(3).equals(cc1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(b2) && p.get(2).equals(cc2)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testOptionalOutNotThere() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B");
b1.addEdge("knows", a1);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out("knows")).path()).toList();
assertEquals(1, paths.size());
}
@Test
public void g_VX2X_optionalXoutXknowsXX() throws IOException {
loadModern(this.sqlgGraph);
this.sqlgGraph.tx().commit();
Graph g = this.sqlgGraph;
assertModernGraph(g, true, false);
Object vadas = convertToVertexId(g, "vadas");
Vertex vadasVertex = g.traversal().V(vadas).next();
List paths = g.traversal().V(vadasVertex).local(__.optional(out("knows")).path()).toList();
assertEquals(1, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 1 && p.get(0).equals(vadasVertex)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
List vertices = g.traversal().V(vadasVertex).local(__.optional(out("knows"))).toList();
assertEquals(1, vertices.size());
assertEquals(vadasVertex, vertices.get(0));
paths = g.traversal().V().local(__.optional(out().optional(out())).path()).toList();
for (Path path : paths) {
System.out.println(path.toString());
}
assertEquals(10, paths.size());
pathsToAssert = Arrays.asList(
p -> p.size() == 2 && p.get(0).equals(convertToVertex(g, "marko")) && p.get(1).equals(convertToVertex(g, "lop")),
p -> p.size() == 2 && p.get(0).equals(convertToVertex(g, "marko")) && p.get(1).equals(convertToVertex(g, "vadas")),
p -> p.size() == 3 && p.get(0).equals(convertToVertex(g, "marko")) && p.get(1).equals(convertToVertex(g, "josh")) && p.get(2).equals(convertToVertex(g, "lop")),
p -> p.size() == 3 && p.get(0).equals(convertToVertex(g, "marko")) && p.get(1).equals(convertToVertex(g, "josh")) && p.get(2).equals(convertToVertex(g, "ripple")),
p -> p.size() == 1 && p.get(0).equals(convertToVertex(g, "vadas")),
p -> p.size() == 1 && p.get(0).equals(convertToVertex(g, "lop")),
p -> p.size() == 2 && p.get(0).equals(convertToVertex(g, "josh")) && p.get(1).equals(convertToVertex(g, "lop")),
p -> p.size() == 2 && p.get(0).equals(convertToVertex(g, "josh")) && p.get(1).equals(convertToVertex(g, "ripple")),
p -> p.size() == 1 && p.get(0).equals(convertToVertex(g, "ripple")),
p -> p.size() == 2 && p.get(0).equals(convertToVertex(g, "peter")) && p.get(1).equals(convertToVertex(g, "lop"))
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testCurrentTreeLabelToSelf1() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A");
Vertex a2 = this.sqlgGraph.addVertex(T.label, "A");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B");
a1.addEdge("aa", a2);
a1.addEdge("ab", b1);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V().local(__.optional(out().optional(out())).path()).toList();
for (Path path : paths) {
System.out.println(path.toString());
}
assertEquals(4, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(a2),
p -> p.size() == 1 && p.get(0).equals(a2),
p -> p.size() == 1 && p.get(0).equals(b1)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testCurrentTreeLabelToSelfSimple() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B");
a1.addEdge("aa", a1);
a1.addEdge("ab", b1);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out().optional(out())).path()).toList();
for (Path path : paths) {
System.out.println(path.toString());
}
assertEquals(3, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(a1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(b1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b1)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testCurrentTreeLabelToSelf() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B");
a1.addEdge("aa", a1);
a1.addEdge("aa", a1);
a1.addEdge("ab", b1);
a1.addEdge("ab", b1);
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out().optional(out())).path()).toList();
for (Path path : paths) {
System.out.println(path.toString());
}
assertEquals(10, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(a1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(a1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(a1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(a1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(b1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(b1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(b1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(a1) && p.get(2).equals(b1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b1)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
@Test
public void testOptionalLeftJoin() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B", "name", "b2");
Vertex b3 = this.sqlgGraph.addVertex(T.label, "B", "name", "b3");
Vertex c1 = this.sqlgGraph.addVertex(T.label, "C", "name", "c1");
Vertex d1 = this.sqlgGraph.addVertex(T.label, "D", "name", "d1");
a1.addEdge("ab", b1);
a1.addEdge("ab", b2);
a1.addEdge("ab", b3);
b1.addEdge("bc", c1);
b2.addEdge("bd", d1);
this.sqlgGraph.tx().commit();
List paths = this.sqlgGraph.traversal().V(a1).local(__.optional(out().optional(out())).path()).toList();
for (Path path : paths) {
System.out.println(path.toString());
}
assertEquals(3, paths.size());
List> pathsToAssert = Arrays.asList(
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(b1) && p.get(2).equals(c1),
p -> p.size() == 3 && p.get(0).equals(a1) && p.get(1).equals(b2) && p.get(2).equals(d1),
p -> p.size() == 2 && p.get(0).equals(a1) && p.get(1).equals(b3)
);
for (Predicate pathPredicate : pathsToAssert) {
Optional path = paths.stream().filter(pathPredicate).findAny();
assertTrue(path.isPresent());
assertTrue(paths.remove(path.get()));
}
assertTrue(paths.isEmpty());
}
}
