com.tinkerpop.gremlin.process.graph.step.sideEffect.GroupCountTest Maven / Gradle / Ivy

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package com.tinkerpop.gremlin.process.graph.step.sideEffect;

import com.tinkerpop.gremlin.LoadGraphWith;
import com.tinkerpop.gremlin.process.AbstractGremlinProcessTest;
import com.tinkerpop.gremlin.process.Traversal;
import com.tinkerpop.gremlin.structure.Vertex;
import org.junit.Test;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import static com.tinkerpop.gremlin.LoadGraphWith.GraphData.MODERN;
import static com.tinkerpop.gremlin.process.graph.AnonymousGraphTraversal.Tokens.__;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;

/**
 * @author Marko A. Rodriguez (http://markorodriguez.com)
 * @author Stephen Mallette (http://stephen.genoprime.com)
 */
public abstract class GroupCountTest extends AbstractGremlinProcessTest {

    public abstract Traversal> get_g_V_outXcreatedX_groupCount_byXnameX();

    public abstract Traversal> get_g_V_outXcreatedX_name_groupCount();

    public abstract Traversal> get_g_V_outXcreatedX_name_groupCountXaX();

    public abstract Traversal> get_g_V_filterXfalseX_groupCount();

    public abstract Traversal> get_g_V_repeatXout_groupCountXaX_byXnameXX_timesX2X_capXaX();

    public abstract Traversal> get_g_V_unionXrepeatXoutX_timesX2X_groupCountXmX_byXlangXX__repeatXinX_timesX2X_groupCountXmX_byXnameXX_capXmX();


    @Test
    @LoadGraphWith(MODERN)
    public void g_V_outXcreatedX_groupCount_byXnameX() {
        final Traversal> traversal = get_g_V_outXcreatedX_groupCount_byXnameX();
        printTraversalForm(traversal);
        final Map map = traversal.next();
        assertEquals(map.size(), 2);
        assertEquals(Long.valueOf(3l), map.get("lop"));
        assertEquals(Long.valueOf(1l), map.get("ripple"));
        assertFalse(traversal.hasNext());
    }

    @Test
    @LoadGraphWith(MODERN)
    public void g_V_outXcreatedX_name_groupCount() {
        Arrays.asList(get_g_V_outXcreatedX_name_groupCount(), get_g_V_outXcreatedX_name_groupCountXaX()).forEach(traversal -> {
            printTraversalForm(traversal);
            final Map map = traversal.next();
            assertEquals(map.size(), 2);
            assertEquals(3l, map.get("lop").longValue());
            assertEquals(1l, map.get("ripple").longValue());
            assertFalse(traversal.hasNext());
        });
    }

    @Test
    @LoadGraphWith(MODERN)
    public void g_V_filterXfalseX_groupCount() {
        final Traversal> traversal = get_g_V_filterXfalseX_groupCount();
        printTraversalForm(traversal);
        final Map map = traversal.next();
        assertEquals(0, map.size());
        assertFalse(traversal.hasNext());
    }

    @Test
    @LoadGraphWith(MODERN)
    public void g_V_repeatXout_groupCountXaX_byXnameXX_timesX2X_capXaX() {
        List>> traversals = new ArrayList<>();
        traversals.add(get_g_V_repeatXout_groupCountXaX_byXnameXX_timesX2X_capXaX());
        traversals.forEach(traversal -> {
            printTraversalForm(traversal);
            final Map map = traversal.next();
            assertFalse(traversal.hasNext());
            assertEquals(4, map.size());
            assertEquals(4l, map.get("lop").longValue());
            assertEquals(2l, map.get("ripple").longValue());
            assertEquals(1l, map.get("josh").longValue());
            assertEquals(1l, map.get("vadas").longValue());
        });
    }

    @Test
    @LoadGraphWith(MODERN)
    public void g_V_unionXrepeatXoutX_timesX2X_groupCountXmX_byXlangXX__repeatXinX_timesX2X_groupCountXmX_byXnameXX_capXmX() {
        List>> traversals = new ArrayList<>();
        traversals.add(get_g_V_unionXrepeatXoutX_timesX2X_groupCountXmX_byXlangXX__repeatXinX_timesX2X_groupCountXmX_byXnameXX_capXmX());
        traversals.forEach(traversal -> {
            printTraversalForm(traversal);
            final Map map = traversal.next();
            assertFalse(traversal.hasNext());
            assertEquals(2, map.size());
            assertEquals(2, map.get("marko").longValue());
            assertEquals(2, map.get("java").longValue());
        });
    }

    public static class StandardTest extends GroupCountTest {

        @Override
        public Traversal> get_g_V_outXcreatedX_groupCount_byXnameX() {
            return (Traversal) g.V().out("created").groupCount().by("name");
        }

        @Override
        public Traversal> get_g_V_outXcreatedX_name_groupCount() {
            return (Traversal) g.V().out("created").values("name").groupCount();
        }

        @Override
        public Traversal> get_g_V_outXcreatedX_name_groupCountXaX() {
            return (Traversal) g.V().out("created").values("name").groupCount("a");
        }

        @Override
        public Traversal> get_g_V_filterXfalseX_groupCount() {
            return (Traversal) g.V().filter(t -> false).groupCount();
        }

        @Override
        public Traversal> get_g_V_repeatXout_groupCountXaX_byXnameXX_timesX2X_capXaX() {
            return g.V().repeat(__.out().groupCount("a").by("name")).times(2).cap("a");
        }

        @Override
        public Traversal> get_g_V_unionXrepeatXoutX_timesX2X_groupCountXmX_byXlangXX__repeatXinX_timesX2X_groupCountXmX_byXnameXX_capXmX() {
            return g.V().union(
                    __.repeat(__.out()).times(2).groupCount("m").by("lang"),
                    __.repeat(__.in()).times(2).groupCount("m").by("name")).cap("m");
        }
    }

    public static class ComputerTest extends GroupCountTest {
        public ComputerTest() {
            requiresGraphComputer = true;
        }

        @Override
        public Traversal> get_g_V_outXcreatedX_groupCount_byXnameX() {
            return (Traversal) g.V().out("created").groupCount().by("name").submit(g.compute());
        }

        @Override
        public Traversal> get_g_V_outXcreatedX_name_groupCount() {
            return (Traversal) g.V().out("created").values("name").groupCount().submit(g.compute());
        }

        @Override
        public Traversal> get_g_V_outXcreatedX_name_groupCountXaX() {
            return (Traversal) g.V().out("created").values("name").groupCount("a").submit(g.compute());
        }

        @Override
        public Traversal> get_g_V_filterXfalseX_groupCount() {
            return (Traversal) g.V().filter(t -> false).groupCount().submit(g.compute());
        }

        @Override
        public Traversal> get_g_V_repeatXout_groupCountXaX_byXnameXX_timesX2X_capXaX() {
            return g.V().repeat(__.out().groupCount("a").by("name")).times(2).>cap("a").submit(g.compute());
        }

        @Override
        public Traversal> get_g_V_unionXrepeatXoutX_timesX2X_groupCountXmX_byXlangXX__repeatXinX_timesX2X_groupCountXmX_byXnameXX_capXmX() {
            return g.V().union(
                    __.repeat(__.out()).times(2).groupCount("m").by("lang"),
                    __.repeat(__.in()).times(2).groupCount("m").by("name")).>cap("m").submit(g.compute());
        }
    }
}