Examples of com.tinkerpop.blueprints.Graph.addVertex()

com.tinkerpop.blueprints.Graph.addVertex()
Create a new vertex, add it to the graph, and return the newly created vertex. The provided object identifier is a recommendation for the identifier to use. It is not required that the implementation use this identifier. @param id the recommended object identifier @return the newly created vertex

        }
    }


    public void testAddEdge() {
        Graph graph = new TinkerGraph();
        Edge edge = GraphHelper.addEdge(graph, null, graph.addVertex(null), graph.addVertex(null), "knows", "weight", 10.0f);
        assertEquals(edge.getProperty("weight"), 10.0f);
        assertEquals(edge.getLabel(), "knows");
        assertEquals(edge.getPropertyKeys().size(), 1);
        assertEquals(count(graph.getVertices()), 2);
        assertEquals(count(graph.getEdges()), 1);

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        }
    }


    public void testAddEdge() {
        Graph graph = new TinkerGraph();
        Edge edge = GraphHelper.addEdge(graph, null, graph.addVertex(null), graph.addVertex(null), "knows", "weight", 10.0f);
        assertEquals(edge.getProperty("weight"), 10.0f);
        assertEquals(edge.getLabel(), "knows");
        assertEquals(edge.getPropertyKeys().size(), 1);
        assertEquals(count(graph.getVertices()), 2);
        assertEquals(count(graph.getEdges()), 1);

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        assertEquals(edge.getPropertyKeys().size(), 1);
        assertEquals(count(graph.getVertices()), 2);
        assertEquals(count(graph.getEdges()), 1);


        try {
            edge = GraphHelper.addEdge(graph, null, graph.addVertex(null), graph.addVertex(null), "knows", "weight");
            assertTrue(false);
        } catch (Exception e) {
            assertFalse(false);
            assertEquals(count(graph.getVertices()), 4);
            assertEquals(count(graph.getEdges()), 1);

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        assertEquals(edge.getPropertyKeys().size(), 1);
        assertEquals(count(graph.getVertices()), 2);
        assertEquals(count(graph.getEdges()), 1);


        try {
            edge = GraphHelper.addEdge(graph, null, graph.addVertex(null), graph.addVertex(null), "knows", "weight");
            assertTrue(false);
        } catch (Exception e) {
            assertFalse(false);
            assertEquals(count(graph.getVertices()), 4);
            assertEquals(count(graph.getEdges()), 1);

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    // cause parse errors for GraphMLReader.
    // However, this happens uncommonly enough that is not yet known which characters those are.
    public void testEncoding() throws Exception {


        Graph g = new TinkerGraph();
        Vertex v = g.addVertex(1);
        v.setProperty("text", "\u00E9");


        GraphMLWriter w = new GraphMLWriter(g);


        File f = File.createTempFile("test", "txt");

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    }


    @Test
    public void jsonFromElementNullsNoKeysNoTypes() throws JSONException {
        Graph g = new TinkerGraph();
        Vertex v = g.addVertex(1);


        Map<String, Object> map = new HashMap<String, Object>();
        map.put("innerkey", null);


        List<String> innerList = new ArrayList<String>();

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    }


    @Test
    public void jsonFromElementNullsNoKeysWithTypes() throws JSONException {
        Graph g = new TinkerGraph();
        Vertex v = g.addVertex(1);


        Map<String, Object> map = new HashMap<String, Object>();
        map.put("innerkey", null);


        List<String> innerList = new ArrayList<String>();

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 */
public class ElementHelperTest extends BaseTest {


    public void testCopyElementProperties() {
        Graph graph = new TinkerGraph();
        Vertex v = graph.addVertex(null);
        v.setProperty("name", "marko");
        v.setProperty("age", 31);
        Vertex u = graph.addVertex(null);
        assertEquals(u.getPropertyKeys().size(), 0);
        ElementHelper.copyProperties(v, u);

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    public void testCopyElementProperties() {
        Graph graph = new TinkerGraph();
        Vertex v = graph.addVertex(null);
        v.setProperty("name", "marko");
        v.setProperty("age", 31);
        Vertex u = graph.addVertex(null);
        assertEquals(u.getPropertyKeys().size(), 0);
        ElementHelper.copyProperties(v, u);
        assertEquals(u.getPropertyKeys().size(), 2);
        assertEquals(u.getProperty("name"), "marko");
        assertEquals(u.getProperty("age"), 31);

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        }
    }


    public void testHaveEqualProperties() {
        Graph graph = new TinkerGraph();
        Vertex a = graph.addVertex(null);
        Vertex b = graph.addVertex(null);
        Vertex c = graph.addVertex(null);
        Vertex d = graph.addVertex(null);


        a.setProperty("name", "marko");

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