hugegraph-test/src/main/java/org/apache/hugegraph/unit/FakeObjects.java [130:169]:
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        PropertyKey name = this.newPropertyKey(IdGenerator.of(1), "name");
        PropertyKey age = this.newPropertyKey(IdGenerator.of(2), "age",
                                              DataType.INT,
                                              Cardinality.SINGLE);
        PropertyKey city = this.newPropertyKey(IdGenerator.of(3), "city");
        PropertyKey date = this.newPropertyKey(IdGenerator.of(4), "date",
                                               DataType.DATE);
        PropertyKey weight = this.newPropertyKey(IdGenerator.of(5),
                                                 "weight", DataType.DOUBLE);

        VertexLabel vl = this.newVertexLabel(IdGenerator.of(1), "person",
                                             IdStrategy.CUSTOMIZE_NUMBER,
                                             name.id(), age.id(), city.id());

        EdgeLabel el = this.newEdgeLabel(IdGenerator.of(1), "knows",
                                         Frequency.SINGLE,  vl.id(), vl.id(),
                                         date.id(), weight.id());

        HugeVertex source = new HugeVertex(this.graph(),
                                           IdGenerator.of(sourceVertexId), vl);
        source.addProperty(name, "tom");
        source.addProperty(age, 18);
        source.addProperty(city, "Beijing");

        HugeVertex target = new HugeVertex(this.graph(),
                                           IdGenerator.of(targetVertexId), vl);
        target.addProperty(name, "cat");
        target.addProperty(age, 20);
        target.addProperty(city, "Shanghai");

        Id id = EdgeId.parse("L123456>1>>L987654");
        HugeEdge edge = new HugeEdge(this.graph(), id, el);

        Whitebox.setInternalState(edge, "sourceVertex", source);
        Whitebox.setInternalState(edge, "targetVertex", target);
        edge.assignId();
        edge.addProperty(date, new Date());
        edge.addProperty(weight, 0.75);

        return edge;
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hugegraph-test/src/main/java/org/apache/hugegraph/unit/FakeObjects.java [173:212]:
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        PropertyKey name = this.newPropertyKey(IdGenerator.of(1), "name");
        PropertyKey age = this.newPropertyKey(IdGenerator.of(2), "age",
                                              DataType.INT,
                                              Cardinality.SINGLE);
        PropertyKey city = this.newPropertyKey(IdGenerator.of(3), "city");
        PropertyKey date = this.newPropertyKey(IdGenerator.of(4), "date",
                                               DataType.DATE);
        PropertyKey weight = this.newPropertyKey(IdGenerator.of(5),
                                                "weight", DataType.DOUBLE);

        VertexLabel vl = this.newVertexLabel(IdGenerator.of(1), "person",
                                             IdStrategy.CUSTOMIZE_NUMBER,
                                             name.id(), age.id(), city.id());

        EdgeLabel el = this.newEdgeLabel(IdGenerator.of(1), "knows",
                                         Frequency.SINGLE,  vl.id(), vl.id(),
                                         date.id(), weight.id());

        HugeVertex source = new HugeVertex(this.graph(),
                                           IdGenerator.of(sourceVertexId), vl);
        source.addProperty(name, "tom");
        source.addProperty(age, 18);
        source.addProperty(city, "Beijing");

        HugeVertex target = new HugeVertex(this.graph(),
                                           IdGenerator.of(targetVertexId), vl);
        target.addProperty(name, "cat");
        target.addProperty(age, 20);
        target.addProperty(city, "Shanghai");

        Id id = EdgeId.parse("L123456>1>>L987654");
        HugeEdge edge = new HugeEdge(this.graph(), id, el);

        Whitebox.setInternalState(edge, "sourceVertex", source);
        Whitebox.setInternalState(edge, "targetVertex", target);
        edge.assignId();
        edge.addProperty(date, new Date());
        edge.addProperty(weight, 0.75);

        return edge;
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