Пример #1
0
    def test_custom_mapping(self):

        # extended mapping
        class X(object):
            pass

        type_string = "test:Xtype"
        override_string = "g:Int64"
        serdes = Mock()

        reader = GraphSONReader(deserializer_map={type_string: serdes})
        assert type_string in reader.deserializers

        # base dicts are not modified
        assert type_string not in gremlin_python.structure.io.graphsonV3d0._deserializers

        x = X()
        o = reader.toObject({GraphSONUtil.TYPE_KEY: type_string, GraphSONUtil.VALUE_KEY: x})
        serdes.objectify.assert_called_once_with(x, reader)
        assert o is serdes.objectify()

        # overridden mapping
        type_string = "g:Int64"
        serdes = Mock()
        reader = GraphSONReader(deserializer_map={type_string: serdes, override_string: serdes})
        assert gremlin_python.structure.io.graphsonV3d0._deserializers[type_string] is not reader.deserializers[
            type_string]

        value = 3
        o = reader.toObject({GraphSONUtil.TYPE_KEY: type_string, GraphSONUtil.VALUE_KEY: value})
        serdes.objectify.assert_called_once_with(value, reader)
        assert o is serdes.objectify()
Пример #2
0
    def test_custom_mapping(self):

        # extended mapping
        class X(object):
            pass

        type_string = "test:Xtype"
        override_string = "g:Int64"
        serdes = Mock()

        reader = GraphSONReader(deserializer_map={type_string: serdes})
        assert type_string in reader.deserializers

        # base dicts are not modified
        assert type_string not in gremlin_python.structure.io.graphsonV3d0._deserializers

        x = X()
        o = reader.toObject({
            GraphSONUtil.TYPE_KEY: type_string,
            GraphSONUtil.VALUE_KEY: x
        })
        serdes.objectify.assert_called_once_with(x, reader)
        assert o is serdes.objectify()

        # overridden mapping
        type_string = "g:Int64"
        serdes = Mock()
        reader = GraphSONReader(deserializer_map={
            type_string: serdes,
            override_string: serdes
        })
        assert gremlin_python.structure.io.graphsonV3d0._deserializers[
            type_string] is not reader.deserializers[type_string]

        value = 3
        o = reader.toObject({
            GraphSONUtil.TYPE_KEY: type_string,
            GraphSONUtil.VALUE_KEY: value
        })
        serdes.objectify.assert_called_once_with(value, reader)
        assert o is serdes.objectify()
Пример #3
0
class TestGraphSONWriter(object):
    graphson_writer = GraphSONWriter()
    graphson_reader = GraphSONReader()

    def test_collections(self):
        assert {
            "@type":
            "g:List",
            "@value": [{
                "@type": "g:Int32",
                "@value": 1
            }, {
                "@type": "g:Int32",
                "@value": 2
            }, {
                "@type": "g:Int32",
                "@value": 3
            }]
        } == json.loads(self.graphson_writer.writeObject([1, 2, 3]))
        assert {
            "@type":
            "g:Set",
            "@value": [{
                "@type": "g:Int32",
                "@value": 1
            }, {
                "@type": "g:Int32",
                "@value": 2
            }, {
                "@type": "g:Int32",
                "@value": 3
            }]
        } == json.loads(self.graphson_writer.writeObject(set([1, 2, 3, 3])))
        assert {
            "@type": "g:Map",
            "@value": ['a', {
                "@type": "g:Int32",
                "@value": 1
            }]
        } == json.loads(self.graphson_writer.writeObject({'a': 1}))

    def test_numbers(self):
        assert {
            "@type": "gx:Byte",
            "@value": 1
        } == json.loads(
            self.graphson_writer.writeObject(int.__new__(SingleByte, 1)))
        assert {
            "@type": "g:Int64",
            "@value": 2
        } == json.loads(self.graphson_writer.writeObject(long(2)))
        assert {
            "@type": "g:Int64",
            "@value": 851401972585122
        } == json.loads(self.graphson_writer.writeObject(
            long(851401972585122)))
        assert {
            "@type": "g:Int64",
            "@value": -2
        } == json.loads(self.graphson_writer.writeObject(long(-2)))
        assert {
            "@type": "g:Int64",
            "@value": -851401972585122
        } == json.loads(
            self.graphson_writer.writeObject(long(-851401972585122)))
        assert {
            "@type": "g:Int32",
            "@value": 1
        } == json.loads(self.graphson_writer.writeObject(1))
        assert {
            "@type": "g:Int32",
            "@value": -1
        } == json.loads(self.graphson_writer.writeObject(-1))
        assert {
            "@type": "g:Int64",
            "@value": 851401972585122
        } == json.loads(self.graphson_writer.writeObject(851401972585122))
        assert {
            "@type": "g:Double",
            "@value": 3.2
        } == json.loads(self.graphson_writer.writeObject(3.2))
        assert {
            "@type": "g:Double",
            "@value": "NaN"
        } == json.loads(self.graphson_writer.writeObject(float('nan')))
        assert {
            "@type": "g:Double",
            "@value": "Infinity"
        } == json.loads(self.graphson_writer.writeObject(float('inf')))
        assert {
            "@type": "g:Double",
            "@value": "-Infinity"
        } == json.loads(self.graphson_writer.writeObject(float('-inf')))
        assert {
            "@type": "gx:BigDecimal",
            "@value": "123456789987654321123456789987654321"
        } == json.loads(
            self.graphson_writer.writeObject(
                Decimal('123456789987654321123456789987654321')))
        assert {
            "@type": "gx:BigDecimal",
            "@value": "NaN"
        } == json.loads(self.graphson_writer.writeObject(Decimal('nan')))
        assert {
            "@type": "gx:BigDecimal",
            "@value": "Infinity"
        } == json.loads(self.graphson_writer.writeObject(Decimal('inf')))
        assert {
            "@type": "gx:BigDecimal",
            "@value": "-Infinity"
        } == json.loads(self.graphson_writer.writeObject(Decimal('-inf')))
        assert {
            "@type": "gx:BigInteger",
            "@value": "123456789987654321123456789987654321"
        } == json.loads(
            self.graphson_writer.writeObject(
                long(123456789987654321123456789987654321)))
        assert {
            "@type": "gx:BigInteger",
            "@value": "123456789987654321123456789987654321"
        } == json.loads(
            self.graphson_writer.writeObject(
                123456789987654321123456789987654321))
        assert """true""" == self.graphson_writer.writeObject(True)

    def test_P(self):
        result = {
            '@type': 'g:P',
            '@value': {
                'predicate':
                'and',
                'value': [{
                    '@type': 'g:P',
                    '@value': {
                        'predicate':
                        'or',
                        'value': [{
                            '@type': 'g:P',
                            '@value': {
                                'predicate': 'lt',
                                'value': 'b'
                            }
                        }, {
                            '@type': 'g:P',
                            '@value': {
                                'predicate': 'gt',
                                'value': 'c'
                            }
                        }]
                    }
                }, {
                    '@type': 'g:P',
                    '@value': {
                        'predicate': 'neq',
                        'value': 'd'
                    }
                }]
            }
        }

        assert result == json.loads(
            self.graphson_writer.writeObject(
                P.lt("b").or_(P.gt("c")).and_(P.neq("d"))))

        result = {
            '@type': 'g:P',
            '@value': {
                'predicate': 'within',
                'value': {
                    '@type':
                    'g:List',
                    '@value': [{
                        "@type": "g:Int32",
                        "@value": 1
                    }, {
                        "@type": "g:Int32",
                        "@value": 2
                    }]
                }
            }
        }
        assert result == json.loads(
            self.graphson_writer.writeObject(P.within([1, 2])))
        assert result == json.loads(
            self.graphson_writer.writeObject(P.within(1, 2)))

        result = {
            '@type': 'g:P',
            '@value': {
                'predicate': 'within',
                'value': {
                    '@type': 'g:List',
                    '@value': [{
                        "@type": "g:Int32",
                        "@value": 1
                    }]
                }
            }
        }
        assert result == json.loads(
            self.graphson_writer.writeObject(P.within([1])))
        assert result == json.loads(
            self.graphson_writer.writeObject(P.within(1)))

    def test_strategies(self):
        # we have a proxy model for now given that we don't want to have to have g:XXX all registered on the
        # Gremlin traversal machine (yet)
        assert {
            "@type": "g:SubgraphStrategy",
            "@value": {}
        } == json.loads(self.graphson_writer.writeObject(SubgraphStrategy))
        assert {
            "@type": "g:SubgraphStrategy",
            "@value": {
                "vertices": {
                    "@type": "g:Bytecode",
                    "@value": {
                        "step": [["has", "name", "marko"]]
                    }
                }
            }
        } == json.loads(
            self.graphson_writer.writeObject(
                SubgraphStrategy(vertices=__.has("name", "marko"))))

    def test_graph(self):
        # TODO: this assert is not compatible with python 3 and now that we test with both 2 and 3 it fails
        assert {
            "@type": "g:Vertex",
            "@value": {
                "id": {
                    "@type": "g:Int64",
                    "@value": 12
                },
                "label": "person"
            }
        } == json.loads(
            self.graphson_writer.writeObject(Vertex(long(12), "person")))

        assert {
            "@type": "g:Edge",
            "@value": {
                "id": {
                    "@type": "g:Int32",
                    "@value": 7
                },
                "outV": {
                    "@type": "g:Int32",
                    "@value": 0
                },
                "outVLabel": "person",
                "label": "knows",
                "inV": {
                    "@type": "g:Int32",
                    "@value": 1
                },
                "inVLabel": "dog"
            }
        } == json.loads(
            self.graphson_writer.writeObject(
                Edge(7, Vertex(0, "person"), "knows", Vertex(1, "dog"))))
        assert {
            "@type": "g:VertexProperty",
            "@value": {
                "id": "blah",
                "label": "keyA",
                "value": True,
                "vertex": "stephen"
            }
        } == json.loads(
            self.graphson_writer.writeObject(
                VertexProperty("blah", "keyA", True, Vertex("stephen"))))

        assert {
            "@type": "g:Property",
            "@value": {
                "key": "name",
                "value": "marko",
                "element": {
                    "@type": "g:VertexProperty",
                    "@value": {
                        "vertex": "vertexId",
                        "id": {
                            "@type": "g:Int32",
                            "@value": 1234
                        },
                        "label": "aKey"
                    }
                }
            }
        } == json.loads(
            self.graphson_writer.writeObject(
                Property(
                    "name", "marko",
                    VertexProperty(1234, "aKey", 21345, Vertex("vertexId")))))

        vertex = self.graphson_reader.readObject(
            self.graphson_writer.writeObject(Vertex(1, "person")))
        assert 1 == vertex.id
        assert "person" == vertex.label

        edge = self.graphson_reader.readObject(
            self.graphson_writer.writeObject(
                Edge(3, Vertex(1, "person"), "knows", Vertex(2, "dog"))))
        assert "knows" == edge.label
        assert 3 == edge.id
        assert 1 == edge.outV.id
        assert 2 == edge.inV.id

        vertex_property = self.graphson_reader.readObject(
            self.graphson_writer.writeObject(
                VertexProperty(1, "age", 32, Vertex(1))))
        assert 1 == vertex_property.id
        assert "age" == vertex_property.key
        assert 32 == vertex_property.value

        property = self.graphson_reader.readObject(
            self.graphson_writer.writeObject(
                Property("age", 32.2, Edge(1, Vertex(2), "knows", Vertex(3)))))
        assert "age" == property.key
        assert 32.2 == property.value

    def test_custom_mapping(self):
        # extended mapping
        class X(object):
            pass

        serdes = Mock()
        writer = GraphSONWriter(serializer_map={X: serdes})
        assert X in writer.serializers

        # base dicts are not modified
        assert X not in gremlin_python.structure.io.graphsonV3d0._serializers

        obj = X()
        d = writer.toDict(obj)
        serdes.dictify.assert_called_once_with(obj, writer)
        assert d is serdes.dictify()

        # overridden mapping
        serdes = Mock()
        writer = GraphSONWriter(serializer_map={int: serdes})
        assert gremlin_python.structure.io.graphsonV3d0._serializers[
            int] is not writer.serializers[int]

        value = 3
        d = writer.toDict(value)
        serdes.dictify.assert_called_once_with(value, writer)
        assert d is serdes.dictify()

    def test_write_long(self):
        mapping = self.graphson_writer.toDict(1)
        assert mapping['@type'] == 'g:Int32'
        assert mapping['@value'] == 1

        mapping = self.graphson_writer.toDict(long(1))
        assert mapping['@type'] == 'g:Int64'
        assert mapping['@value'] == 1

    def test_datetime(self):
        expected = json.dumps({
            "@type": "g:Date",
            "@value": 1481750076295
        },
                              separators=(',', ':'))
        dt = datetime.datetime.utcfromtimestamp(1481750076295 / 1000.0)
        output = self.graphson_writer.writeObject(dt)
        assert expected == output

    def test_timestamp(self):
        expected = json.dumps({
            "@type": "g:Timestamp",
            "@value": 1481750076295
        },
                              separators=(',', ':'))
        ts = timestamp(1481750076295 / 1000.0)
        output = self.graphson_writer.writeObject(ts)
        assert expected == output

    def test_duration(self):
        expected = json.dumps({
            "@type": "gx:Duration",
            "@value": "P5D"
        },
                              separators=(',', ':'))
        d = datetime.timedelta(hours=120)
        output = self.graphson_writer.writeObject(d)
        assert expected == output

    def test_uuid(self):
        expected = json.dumps(
            {
                '@type': 'g:UUID',
                '@value': "41d2e28a-20a4-4ab0-b379-d810dede3786"
            },
            separators=(',', ':'))
        prop = uuid.UUID("41d2e28a-20a4-4ab0-b379-d810dede3786")
        output = self.graphson_writer.writeObject(prop)
        assert expected == output

    def test_bytebuffer(self):
        expected = json.dumps(
            {
                '@type': 'gx:ByteBuffer',
                '@value': 'c29tZSBieXRlcyBmb3IgeW91'
            },
            separators=(',', ':'))
        bb = ByteBufferType("c29tZSBieXRlcyBmb3IgeW91", "utf8")
        output = self.graphson_writer.writeObject(bb)
        assert expected == output

    def test_char(self):
        expected = json.dumps({
            '@type': 'gx:Char',
            '@value': 'L'
        },
                              separators=(',', ':'))
        c = str.__new__(SingleChar, chr(76))
        output = self.graphson_writer.writeObject(c)
        assert expected == output
Пример #4
0
class TestGraphSONReader(object):
    graphson_reader = GraphSONReader()

    def test_collections(self):
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type":
                "g:List",
                "@value": [{
                    "@type": "g:Int32",
                    "@value": 1
                }, {
                    "@type": "g:Int32",
                    "@value": 2
                }, "3"]
            }))
        assert isinstance(x, list)
        assert x[0] == 1
        assert x[1] == 2
        assert x[2] == "3"
        ##

        x = self.graphson_reader.readObject(
            json.dumps({
                "@type":
                "g:Set",
                "@value": [{
                    "@type": "g:Int32",
                    "@value": 1
                }, {
                    "@type": "g:Int32",
                    "@value": 2
                }, "3"]
            }))
        # return a set as normal
        assert isinstance(x, set)
        assert x == set([1, 2, "3"])

        x = self.graphson_reader.readObject(
            json.dumps({
                "@type":
                "g:Set",
                "@value": [{
                    "@type": "g:Int32",
                    "@value": 1
                }, {
                    "@type": "g:Int32",
                    "@value": 2
                }, {
                    "@type": "g:Float",
                    "@value": 2.0
                }, "3"]
            }))
        # coerce to list here because Java might return numerics of different types which python won't recognize
        # see comments of TINKERPOP-1844 for more details
        assert isinstance(x, list)
        assert x == list([1, 2, 2.0, "3"])
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type":
                "g:Map",
                "@value":
                ['a', {
                    "@type": "g:Int32",
                    "@value": 1
                }, 'b', "marko"]
            }))
        assert isinstance(x, dict)
        assert x['a'] == 1
        assert x['b'] == "marko"
        assert len(x) == 2

        # BulkSet gets coerced to a List - both have the same behavior
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type":
                "g:BulkSet",
                "@value": [
                    "marko", {
                        "@type": "g:Int64",
                        "@value": 1
                    }, "josh", {
                        "@type": "g:Int64",
                        "@value": 3
                    }
                ]
            }))
        assert isinstance(x, list)
        assert len(x) == 4
        assert x.count("marko") == 1
        assert x.count("josh") == 3

    def test_number_input(self):
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:Byte",
                "@value": 1
            }))
        assert isinstance(x, SingleByte)
        assert 1 == x
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Int32",
                "@value": 31
            }))
        assert isinstance(x, int)
        assert 31 == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Int64",
                "@value": 31
            }))
        assert isinstance(x, long)
        assert long(31) == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Float",
                "@value": 31.3
            }))
        assert isinstance(x, float)
        assert 31.3 == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Double",
                "@value": 31.2
            }))
        assert isinstance(x, float)
        assert 31.2 == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Double",
                "@value": "NaN"
            }))
        assert isinstance(x, float)
        assert math.isnan(x)
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Double",
                "@value": "Infinity"
            }))
        assert isinstance(x, float)
        assert math.isinf(x) and x > 0
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Double",
                "@value": "-Infinity"
            }))
        assert isinstance(x, float)
        assert math.isinf(x) and x < 0
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:BigDecimal",
                "@value": 31.2
            }))
        assert isinstance(x, Decimal)
        assert Decimal(31.2) == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:BigDecimal",
                "@value": 123456789987654321123456789987654321
            }))
        assert isinstance(x, Decimal)
        assert Decimal('123456789987654321123456789987654321') == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:BigDecimal",
                "@value": "NaN"
            }))
        assert isinstance(x, Decimal)
        assert math.isnan(x)
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:BigDecimal",
                "@value": "Infinity"
            }))
        assert isinstance(x, Decimal)
        assert math.isinf(x) and x > 0
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:BigDecimal",
                "@value": "-Infinity"
            }))
        assert isinstance(x, Decimal)
        assert math.isinf(x) and x < 0
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:BigInteger",
                "@value": 31
            }))
        assert isinstance(x, long)
        assert 31 == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:BigInteger",
                "@value": 123456789987654321123456789987654321
            }))
        assert isinstance(x, long)
        assert 123456789987654321123456789987654321 == x

    def test_graph(self):
        vertex = self.graphson_reader.readObject("""
        {"@type":"g:Vertex", "@value":{"id":{"@type":"g:Int32","@value":1},"label":"person","outE":{"created":[{"id":{"@type":"g:Int32","@value":9},"inV":{"@type":"g:Int32","@value":3},"properties":{"weight":{"@type":"g:Double","@value":0.4}}}],"knows":[{"id":{"@type":"g:Int32","@value":7},"inV":{"@type":"g:Int32","@value":2},"properties":{"weight":{"@type":"g:Double","@value":0.5}}},{"id":{"@type":"g:Int32","@value":8},"inV":{"@type":"g:Int32","@value":4},"properties":{"weight":{"@type":"g:Double","@value":1.0}}}]},"properties":{"name":[{"id":{"@type":"g:Int64","@value":0},"value":"marko"}],"age":[{"id":{"@type":"g:Int64","@value":1},"value":{"@type":"g:Int32","@value":29}}]}}}"""
                                                 )
        assert isinstance(vertex, Vertex)
        assert "person" == vertex.label
        assert 1 == vertex.id
        assert isinstance(vertex.id, int)
        assert vertex == Vertex(1)
        ##
        vertex = self.graphson_reader.readObject("""
        {"@type":"g:Vertex", "@value":{"id":{"@type":"g:Float","@value":45.23}}}"""
                                                 )
        assert isinstance(vertex, Vertex)
        assert 45.23 == vertex.id
        assert isinstance(vertex.id, FloatType)
        assert "vertex" == vertex.label
        assert vertex == Vertex(45.23)
        ##
        vertex_property = self.graphson_reader.readObject("""
        {"@type":"g:VertexProperty", "@value":{"id":"anId","label":"aKey","value":true,"vertex":{"@type":"g:Int32","@value":9}}}"""
                                                          )
        assert isinstance(vertex_property, VertexProperty)
        assert "anId" == vertex_property.id
        assert "aKey" == vertex_property.label
        assert vertex_property.value
        assert vertex_property.vertex == Vertex(9)
        ##
        vertex_property = self.graphson_reader.readObject("""
        {"@type":"g:VertexProperty", "@value":{"id":{"@type":"g:Int32","@value":1},"label":"name","value":"marko"}}"""
                                                          )
        assert isinstance(vertex_property, VertexProperty)
        assert 1 == vertex_property.id
        assert "name" == vertex_property.label
        assert "marko" == vertex_property.value
        assert vertex_property.vertex is None
        ##
        edge = self.graphson_reader.readObject("""
        {"@type":"g:Edge", "@value":{"id":{"@type":"g:Int64","@value":17},"label":"knows","inV":"x","outV":"y","inVLabel":"xLab","properties":{"aKey":"aValue","bKey":true}}}"""
                                               )
        # print edge
        assert isinstance(edge, Edge)
        assert 17 == edge.id
        assert "knows" == edge.label
        assert edge.inV == Vertex("x", "xLabel")
        assert edge.outV == Vertex("y", "vertex")
        ##
        property = self.graphson_reader.readObject("""
        {"@type":"g:Property", "@value":{"key":"aKey","value":{"@type":"g:Int64","@value":17},"element":{"@type":"g:Edge","@value":{"id":{"@type":"g:Int64","@value":122},"label":"knows","inV":"x","outV":"y","inVLabel":"xLab"}}}}"""
                                                   )
        # print property
        assert isinstance(property, Property)
        assert "aKey" == property.key
        assert 17 == property.value
        assert Edge(122, Vertex("x"), "knows", Vertex("y")) == property.element

    def test_path(self):
        path = self.graphson_reader.readObject(
            """{"@type":"g:Path","@value":{"labels":{"@type":"g:List","@value":[{"@type":"g:Set","@value":["a"]},{"@type":"g:Set","@value":["b","c"]},{"@type":"g:Set","@value":[]}]},"objects":{"@type":"g:List","@value":[{"@type":"g:Vertex","@value":{"id":{"@type":"g:Int32","@value":1},"label":"person","properties":{"name":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":0},"value":"marko","label":"name"}}],"age":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":1},"value":{"@type":"g:Int32","@value":29},"label":"age"}}]}}},{"@type":"g:Vertex","@value":{"id":{"@type":"g:Int32","@value":3},"label":"software","properties":{"name":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":4},"value":"lop","label":"name"}}],"lang":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":5},"value":"java","label":"lang"}}]}}},"lop"]}}}"""
        )
        assert isinstance(path, Path)
        assert "path[v[1], v[3], lop]" == str(path)
        assert Vertex(1) == path[0]
        assert Vertex(1) == path["a"]
        assert "lop" == path[2]
        assert 3 == len(path)

    def test_custom_mapping(self):

        # extended mapping
        class X(object):
            pass

        type_string = "test:Xtype"
        override_string = "g:Int64"
        serdes = Mock()

        reader = GraphSONReader(deserializer_map={type_string: serdes})
        assert type_string in reader.deserializers

        # base dicts are not modified
        assert type_string not in gremlin_python.structure.io.graphsonV3d0._deserializers

        x = X()
        o = reader.toObject({
            GraphSONUtil.TYPE_KEY: type_string,
            GraphSONUtil.VALUE_KEY: x
        })
        serdes.objectify.assert_called_once_with(x, reader)
        assert o is serdes.objectify()

        # overridden mapping
        type_string = "g:Int64"
        serdes = Mock()
        reader = GraphSONReader(deserializer_map={
            type_string: serdes,
            override_string: serdes
        })
        assert gremlin_python.structure.io.graphsonV3d0._deserializers[
            type_string] is not reader.deserializers[type_string]

        value = 3
        o = reader.toObject({
            GraphSONUtil.TYPE_KEY: type_string,
            GraphSONUtil.VALUE_KEY: value
        })
        serdes.objectify.assert_called_once_with(value, reader)
        assert o is serdes.objectify()

    def test_datetime(self):
        expected = datetime.datetime(2016, 12, 14, 16, 14, 36, 295000)
        pts = time.mktime(expected.timetuple()) + expected.microsecond / 1e6 - \
              (time.mktime(datetime.datetime(1970, 1, 1).timetuple()))
        ts = int(round(pts * 1000))
        dt = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Date",
                "@value": ts
            }))
        assert isinstance(dt, datetime.datetime)
        # TINKERPOP-1848
        assert dt == expected

    def test_timestamp(self):
        dt = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Timestamp",
                "@value": 1481750076295
            }))
        assert isinstance(dt, timestamp)
        assert float(dt) == 1481750076.295

    def test_duration(self):
        d = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:Duration",
                "@value": "PT120H"
            }))
        assert isinstance(d, datetime.timedelta)
        assert d == datetime.timedelta(hours=120)

    def test_uuid(self):
        prop = self.graphson_reader.readObject(
            json.dumps({
                '@type': 'g:UUID',
                '@value': "41d2e28a-20a4-4ab0-b379-d810dede3786"
            }))
        assert isinstance(prop, uuid.UUID)
        assert str(prop) == '41d2e28a-20a4-4ab0-b379-d810dede3786'

    def test_metrics(self):
        prop = self.graphson_reader.readObject(
            json.dumps([{
                '@type': 'g:TraversalMetrics',
                '@value': {
                    'dur':
                    1.468594,
                    'metrics': [{
                        '@type': 'g:Metrics',
                        '@value': {
                            'dur': 1.380957,
                            'counts': {},
                            'name': 'GraphStep(__.V())',
                            'annotations': {
                                'percentDur': 94.03259171697556
                            },
                            'id': '4.0.0()'
                        }
                    }, {
                        '@type': 'g:Metrics',
                        '@value': {
                            'dur': 0.087637,
                            'counts': {},
                            'name': 'ReferenceElementStep',
                            'annotations': {
                                'percentDur': 5.967408283024444
                            },
                            'id': '3.0.0()'
                        }
                    }]
                }
            }]))
        assert isinstance(prop, list)
        assert prop == [{
            'dur':
            1.468594,
            'metrics': [{
                'dur': 1.380957,
                'counts': {},
                'name': 'GraphStep(__.V())',
                'annotations': {
                    'percentDur': 94.03259171697556
                },
                'id': '4.0.0()'
            }, {
                'dur': 0.087637,
                'counts': {},
                'name': 'ReferenceElementStep',
                'annotations': {
                    'percentDur': 5.967408283024444
                },
                'id': '3.0.0()'
            }]
        }]

    def test_bytebuffer(self):
        bb = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:ByteBuffer",
                "@value": "c29tZSBieXRlcyBmb3IgeW91"
            }))
        assert isinstance(bb, ByteBufferType)
        assert ByteBufferType("c29tZSBieXRlcyBmb3IgeW91", "utf8") == bb

    def test_char(self):
        c = self.graphson_reader.readObject(
            json.dumps({
                "@type": "gx:Char",
                "@value": "L"
            }))
        assert isinstance(c, SingleChar)
        assert chr(76) == c

    def test_null(self):
        c = self.graphson_reader.readObject(json.dumps(None))
        assert c is None
Пример #5
0
class TestGraphSONReader(object):
    graphson_reader = GraphSONReader()

    def test_collections(self):
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type":
                "g:List",
                "@value": [{
                    "@type": "g:Int32",
                    "@value": 1
                }, {
                    "@type": "g:Int32",
                    "@value": 2
                }, "3"]
            }))
        assert isinstance(x, list)
        assert x[0] == 1
        assert x[1] == 2
        assert x[2] == "3"
        ##

        x = self.graphson_reader.readObject(
            json.dumps({
                "@type":
                "g:Set",
                "@value": [{
                    "@type": "g:Int32",
                    "@value": 1
                }, {
                    "@type": "g:Int32",
                    "@value": 2
                }, "3"]
            }))
        # return a set as normal
        assert isinstance(x, set)
        assert x == set([1, 2, "3"])

        x = self.graphson_reader.readObject(
            json.dumps({
                "@type":
                "g:Set",
                "@value": [{
                    "@type": "g:Int32",
                    "@value": 1
                }, {
                    "@type": "g:Int32",
                    "@value": 2
                }, {
                    "@type": "g:Float",
                    "@value": 2.0
                }, "3"]
            }))
        # coerce to list here because Java might return numerics of different types which python won't recognize
        # see comments of TINKERPOP-1844 for more details
        assert isinstance(x, list)
        assert x == list([1, 2, 2.0, "3"])
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type":
                "g:Map",
                "@value":
                ['a', {
                    "@type": "g:Int32",
                    "@value": 1
                }, 'b', "marko"]
            }))
        assert isinstance(x, dict)
        assert x['a'] == 1
        assert x['b'] == "marko"
        assert len(x) == 2

    def test_number_input(self):
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Int32",
                "@value": 31
            }))
        assert isinstance(x, int)
        assert 31 == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Int64",
                "@value": 31
            }))
        assert isinstance(x, long)
        assert long(31) == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Float",
                "@value": 31.3
            }))
        assert isinstance(x, float)
        assert 31.3 == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Double",
                "@value": 31.2
            }))
        assert isinstance(x, float)
        assert 31.2 == x
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Double",
                "@value": "NaN"
            }))
        assert isinstance(x, float)
        assert math.isnan(x)
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Double",
                "@value": "Infinity"
            }))
        assert isinstance(x, float)
        assert math.isinf(x) and x > 0
        ##
        x = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Double",
                "@value": "-Infinity"
            }))
        assert isinstance(x, float)
        assert math.isinf(x) and x < 0

    def test_graph(self):
        vertex = self.graphson_reader.readObject("""
        {"@type":"g:Vertex", "@value":{"id":{"@type":"g:Int32","@value":1},"label":"person","outE":{"created":[{"id":{"@type":"g:Int32","@value":9},"inV":{"@type":"g:Int32","@value":3},"properties":{"weight":{"@type":"g:Double","@value":0.4}}}],"knows":[{"id":{"@type":"g:Int32","@value":7},"inV":{"@type":"g:Int32","@value":2},"properties":{"weight":{"@type":"g:Double","@value":0.5}}},{"id":{"@type":"g:Int32","@value":8},"inV":{"@type":"g:Int32","@value":4},"properties":{"weight":{"@type":"g:Double","@value":1.0}}}]},"properties":{"name":[{"id":{"@type":"g:Int64","@value":0},"value":"marko"}],"age":[{"id":{"@type":"g:Int64","@value":1},"value":{"@type":"g:Int32","@value":29}}]}}}"""
                                                 )
        assert isinstance(vertex, Vertex)
        assert "person" == vertex.label
        assert 1 == vertex.id
        assert isinstance(vertex.id, int)
        assert vertex == Vertex(1)
        ##
        vertex = self.graphson_reader.readObject("""
        {"@type":"g:Vertex", "@value":{"id":{"@type":"g:Float","@value":45.23}}}"""
                                                 )
        assert isinstance(vertex, Vertex)
        assert 45.23 == vertex.id
        assert isinstance(vertex.id, FloatType)
        assert "vertex" == vertex.label
        assert vertex == Vertex(45.23)
        ##
        vertex_property = self.graphson_reader.readObject("""
        {"@type":"g:VertexProperty", "@value":{"id":"anId","label":"aKey","value":true,"vertex":{"@type":"g:Int32","@value":9}}}"""
                                                          )
        assert isinstance(vertex_property, VertexProperty)
        assert "anId" == vertex_property.id
        assert "aKey" == vertex_property.label
        assert vertex_property.value
        assert vertex_property.vertex == Vertex(9)
        ##
        vertex_property = self.graphson_reader.readObject("""
        {"@type":"g:VertexProperty", "@value":{"id":{"@type":"g:Int32","@value":1},"label":"name","value":"marko"}}"""
                                                          )
        assert isinstance(vertex_property, VertexProperty)
        assert 1 == vertex_property.id
        assert "name" == vertex_property.label
        assert "marko" == vertex_property.value
        assert vertex_property.vertex is None
        ##
        edge = self.graphson_reader.readObject("""
        {"@type":"g:Edge", "@value":{"id":{"@type":"g:Int64","@value":17},"label":"knows","inV":"x","outV":"y","inVLabel":"xLab","properties":{"aKey":"aValue","bKey":true}}}"""
                                               )
        # print edge
        assert isinstance(edge, Edge)
        assert 17 == edge.id
        assert "knows" == edge.label
        assert edge.inV == Vertex("x", "xLabel")
        assert edge.outV == Vertex("y", "vertex")
        ##
        property = self.graphson_reader.readObject("""
        {"@type":"g:Property", "@value":{"key":"aKey","value":{"@type":"g:Int64","@value":17},"element":{"@type":"g:Edge","@value":{"id":{"@type":"g:Int64","@value":122},"label":"knows","inV":"x","outV":"y","inVLabel":"xLab"}}}}"""
                                                   )
        # print property
        assert isinstance(property, Property)
        assert "aKey" == property.key
        assert 17 == property.value
        assert Edge(122, Vertex("x"), "knows", Vertex("y")) == property.element

    def test_path(self):
        path = self.graphson_reader.readObject(
            """{"@type":"g:Path","@value":{"labels":{"@type":"g:List","@value":[{"@type":"g:Set","@value":["a"]},{"@type":"g:Set","@value":["b","c"]},{"@type":"g:Set","@value":[]}]},"objects":{"@type":"g:List","@value":[{"@type":"g:Vertex","@value":{"id":{"@type":"g:Int32","@value":1},"label":"person","properties":{"name":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":0},"value":"marko","label":"name"}}],"age":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":1},"value":{"@type":"g:Int32","@value":29},"label":"age"}}]}}},{"@type":"g:Vertex","@value":{"id":{"@type":"g:Int32","@value":3},"label":"software","properties":{"name":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":4},"value":"lop","label":"name"}}],"lang":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":5},"value":"java","label":"lang"}}]}}},"lop"]}}}"""
        )
        assert isinstance(path, Path)
        assert "path[v[1], v[3], lop]" == str(path)
        assert Vertex(1) == path[0]
        assert Vertex(1) == path["a"]
        assert "lop" == path[2]
        assert 3 == len(path)

    def test_custom_mapping(self):

        # extended mapping
        class X(object):
            pass

        type_string = "test:Xtype"
        override_string = "g:Int64"
        serdes = Mock()

        reader = GraphSONReader(deserializer_map={type_string: serdes})
        assert type_string in reader.deserializers

        # base dicts are not modified
        assert type_string not in gremlin_python.structure.io.graphsonV3d0._deserializers

        x = X()
        o = reader.toObject({
            GraphSONUtil.TYPE_KEY: type_string,
            GraphSONUtil.VALUE_KEY: x
        })
        serdes.objectify.assert_called_once_with(x, reader)
        assert o is serdes.objectify()

        # overridden mapping
        type_string = "g:Int64"
        serdes = Mock()
        reader = GraphSONReader(deserializer_map={
            type_string: serdes,
            override_string: serdes
        })
        assert gremlin_python.structure.io.graphsonV3d0._deserializers[
            type_string] is not reader.deserializers[type_string]

        value = 3
        o = reader.toObject({
            GraphSONUtil.TYPE_KEY: type_string,
            GraphSONUtil.VALUE_KEY: value
        })
        serdes.objectify.assert_called_once_with(value, reader)
        assert o is serdes.objectify()

    def test_datetime(self):
        expected = datetime.datetime(2016, 12, 14, 16, 14, 36, 295000)
        pts = time.mktime((expected.year, expected.month, expected.day,
                           expected.hour, expected.minute, expected.second, -1,
                           -1, -1)) + expected.microsecond / 1e6
        timestamp = int(round(pts * 1000))
        dt = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Date",
                "@value": timestamp
            }))
        assert isinstance(dt, datetime.datetime)
        # TINKERPOP-1848
        assert dt == expected

    def test_timestamp(self):
        dt = self.graphson_reader.readObject(
            json.dumps({
                "@type": "g:Timestamp",
                "@value": 1481750076295
            }))
        assert isinstance(dt, timestamp)
        assert float(dt) == 1481750076.295

    def test_uuid(self):
        prop = self.graphson_reader.readObject(
            json.dumps({
                '@type': 'g:UUID',
                '@value': "41d2e28a-20a4-4ab0-b379-d810dede3786"
            }))
        assert isinstance(prop, uuid.UUID)
        assert str(prop) == '41d2e28a-20a4-4ab0-b379-d810dede3786'
Пример #6
0
class TestGraphSONReader(object):
    graphson_reader = GraphSONReader()

    def test_collections(self):
        x = self.graphson_reader.readObject(
            json.dumps({"@type": "g:List", "@value": [{"@type": "g:Int32", "@value": 1},
                                                      {"@type": "g:Int32", "@value": 2},
                                                      "3"]}))
        assert isinstance(x, list)
        assert x[0] == 1
        assert x[1] == 2
        assert x[2] == "3"
        ##
        x = self.graphson_reader.readObject(
            json.dumps({"@type": "g:Set", "@value": [{"@type": "g:Int32", "@value": 1},
                                                     {"@type": "g:Int32", "@value": 2},
                                                     "3"]}))
        assert isinstance(x, set)
        assert x == set([1, 2, "3"])
        ##
        x = self.graphson_reader.readObject(
            json.dumps({"@type": "g:Map",
                        "@value": ['a', {"@type": "g:Int32", "@value": 1}, 'b', "marko"]}))
        assert isinstance(x, dict)
        assert x['a'] == 1
        assert x['b'] == "marko"
        assert len(x) == 2

    def test_number_input(self):
        x = self.graphson_reader.readObject(json.dumps({
            "@type": "g:Int32",
            "@value": 31
        }))
        assert isinstance(x, int)
        assert 31 == x
        ##
        x = self.graphson_reader.readObject(json.dumps({
            "@type": "g:Int64",
            "@value": 31
        }))
        assert isinstance(x, long)
        assert long(31) == x
        ##
        x = self.graphson_reader.readObject(json.dumps({
            "@type": "g:Float",
            "@value": 31.3
        }))
        assert isinstance(x, float)
        assert 31.3 == x
        ##
        x = self.graphson_reader.readObject(json.dumps({
            "@type": "g:Double",
            "@value": 31.2
        }))
        assert isinstance(x, float)
        assert 31.2 == x

    def test_graph(self):
        vertex = self.graphson_reader.readObject("""
        {"@type":"g:Vertex", "@value":{"id":{"@type":"g:Int32","@value":1},"label":"person","outE":{"created":[{"id":{"@type":"g:Int32","@value":9},"inV":{"@type":"g:Int32","@value":3},"properties":{"weight":{"@type":"g:Double","@value":0.4}}}],"knows":[{"id":{"@type":"g:Int32","@value":7},"inV":{"@type":"g:Int32","@value":2},"properties":{"weight":{"@type":"g:Double","@value":0.5}}},{"id":{"@type":"g:Int32","@value":8},"inV":{"@type":"g:Int32","@value":4},"properties":{"weight":{"@type":"g:Double","@value":1.0}}}]},"properties":{"name":[{"id":{"@type":"g:Int64","@value":0},"value":"marko"}],"age":[{"id":{"@type":"g:Int64","@value":1},"value":{"@type":"g:Int32","@value":29}}]}}}""")
        assert isinstance(vertex, Vertex)
        assert "person" == vertex.label
        assert 1 == vertex.id
        assert isinstance(vertex.id, int)
        assert vertex == Vertex(1)
        ##
        vertex = self.graphson_reader.readObject("""
        {"@type":"g:Vertex", "@value":{"id":{"@type":"g:Float","@value":45.23}}}""")
        assert isinstance(vertex, Vertex)
        assert 45.23 == vertex.id
        assert isinstance(vertex.id, FloatType)
        assert "vertex" == vertex.label
        assert vertex == Vertex(45.23)
        ##
        vertex_property = self.graphson_reader.readObject("""
        {"@type":"g:VertexProperty", "@value":{"id":"anId","label":"aKey","value":true,"vertex":{"@type":"g:Int32","@value":9}}}""")
        assert isinstance(vertex_property, VertexProperty)
        assert "anId" == vertex_property.id
        assert "aKey" == vertex_property.label
        assert vertex_property.value
        assert vertex_property.vertex == Vertex(9)
        ##
        vertex_property = self.graphson_reader.readObject("""
        {"@type":"g:VertexProperty", "@value":{"id":{"@type":"g:Int32","@value":1},"label":"name","value":"marko"}}""")
        assert isinstance(vertex_property, VertexProperty)
        assert 1 == vertex_property.id
        assert "name" == vertex_property.label
        assert "marko" == vertex_property.value
        assert vertex_property.vertex is None
        ##
        edge = self.graphson_reader.readObject("""
        {"@type":"g:Edge", "@value":{"id":{"@type":"g:Int64","@value":17},"label":"knows","inV":"x","outV":"y","inVLabel":"xLab","properties":{"aKey":"aValue","bKey":true}}}""")
        # print edge
        assert isinstance(edge, Edge)
        assert 17 == edge.id
        assert "knows" == edge.label
        assert edge.inV == Vertex("x", "xLabel")
        assert edge.outV == Vertex("y", "vertex")
        ##
        property = self.graphson_reader.readObject("""
        {"@type":"g:Property", "@value":{"key":"aKey","value":{"@type":"g:Int64","@value":17},"element":{"@type":"g:Edge","@value":{"id":{"@type":"g:Int64","@value":122},"label":"knows","inV":"x","outV":"y","inVLabel":"xLab"}}}}""")
        # print property
        assert isinstance(property, Property)
        assert "aKey" == property.key
        assert 17 == property.value
        assert Edge(122, Vertex("x"), "knows", Vertex("y")) == property.element

    def test_path(self):
        path = self.graphson_reader.readObject(
            """{"@type":"g:Path","@value":{"labels":[["a"],["b","c"],[]],"objects":[{"@type":"g:Vertex","@value":{"id":{"@type":"g:Int32","@value":1},"label":"person","properties":{"name":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":0},"value":"marko","label":"name"}}],"age":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":1},"value":{"@type":"g:Int32","@value":29},"label":"age"}}]}}},{"@type":"g:Vertex","@value":{"id":{"@type":"g:Int32","@value":3},"label":"software","properties":{"name":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":4},"value":"lop","label":"name"}}],"lang":[{"@type":"g:VertexProperty","@value":{"id":{"@type":"g:Int64","@value":5},"value":"java","label":"lang"}}]}}},"lop"]}}"""
        )
        assert isinstance(path, Path)
        if six.PY3:
            assert "[v[1], v[3], 'lop']" == str(path)
        else:
            assert "[v[1], v[3], u'lop']" == str(path)
        assert Vertex(1) == path[0]
        assert Vertex(1) == path["a"]
        assert "lop" == path[2]
        assert 3 == len(path)

    def test_custom_mapping(self):

        # extended mapping
        class X(object):
            pass

        type_string = "test:Xtype"
        override_string = "g:Int64"
        serdes = Mock()

        reader = GraphSONReader(deserializer_map={type_string: serdes})
        assert type_string in reader.deserializers

        # base dicts are not modified
        assert type_string not in gremlin_python.structure.io.graphsonV3d0._deserializers

        x = X()
        o = reader.toObject({GraphSONUtil.TYPE_KEY: type_string, GraphSONUtil.VALUE_KEY: x})
        serdes.objectify.assert_called_once_with(x, reader)
        assert o is serdes.objectify()

        # overridden mapping
        type_string = "g:Int64"
        serdes = Mock()
        reader = GraphSONReader(deserializer_map={type_string: serdes, override_string: serdes})
        assert gremlin_python.structure.io.graphsonV3d0._deserializers[type_string] is not reader.deserializers[
            type_string]

        value = 3
        o = reader.toObject({GraphSONUtil.TYPE_KEY: type_string, GraphSONUtil.VALUE_KEY: value})
        serdes.objectify.assert_called_once_with(value, reader)
        assert o is serdes.objectify()
Пример #7
0
class TestGraphSONWriter(object):
    graphson_writer = GraphSONWriter()
    graphson_reader = GraphSONReader()

    def test_collections(self):
        assert {"@type": "g:List", "@value": [{"@type": "g:Int32", "@value": 1},
                                              {"@type": "g:Int32", "@value": 2},
                                              {"@type": "g:Int32", "@value": 3}]} == json.loads(
            self.graphson_writer.writeObject([1, 2, 3]))
        assert {"@type": "g:Set", "@value": [{"@type": "g:Int32", "@value": 1},
                                             {"@type": "g:Int32", "@value": 2},
                                             {"@type": "g:Int32", "@value": 3}]} == json.loads(
            self.graphson_writer.writeObject(set([1, 2, 3, 3])))
        assert {"@type": "g:Map",
                "@value": ['a', {"@type": "g:Int32", "@value": 1}]} == json.loads(
            self.graphson_writer.writeObject({'a': 1}))

    def test_number_output(self):
        assert {"@type": "g:Int64", "@value": 2} == json.loads(self.graphson_writer.writeObject(long(2)))
        assert {"@type": "g:Int32", "@value": 1} == json.loads(self.graphson_writer.writeObject(1))
        assert {"@type": "g:Double", "@value": 3.2} == json.loads(self.graphson_writer.writeObject(3.2))
        assert """true""" == self.graphson_writer.writeObject(True)

    def test_numbers(self):
        assert {"@type": "g:Int64", "@value": 2} == json.loads(self.graphson_writer.writeObject(long(2)))
        assert {"@type": "g:Int32", "@value": 1} == json.loads(self.graphson_writer.writeObject(1))
        assert {"@type": "g:Double", "@value": 3.2} == json.loads(self.graphson_writer.writeObject(3.2))
        assert """true""" == self.graphson_writer.writeObject(True)

    def test_P(self):
        result = {'@type': 'g:P',
                  '@value': {
                      'predicate': 'and',
                      'value': [{
                          '@type': 'g:P',
                          '@value': {
                              'predicate': 'or',
                              'value': [{
                                  '@type': 'g:P',
                                  '@value': {'predicate': 'lt', 'value': 'b'}
                              },
                                  {'@type': 'g:P', '@value': {'predicate': 'gt', 'value': 'c'}}
                              ]
                          }
                      },
                          {'@type': 'g:P', '@value': {'predicate': 'neq', 'value': 'd'}}]}}

        assert result == json.loads(
            self.graphson_writer.writeObject(P.lt("b").or_(P.gt("c")).and_(P.neq("d"))))

        result = {'@type': 'g:P', '@value': {'predicate': 'within', 'value': {'@type': 'g:List', '@value': [
            {"@type": "g:Int32", "@value": 1}, {"@type": "g:Int32", "@value": 2}]}}}
        assert result == json.loads(self.graphson_writer.writeObject(P.within([1, 2])))

    def test_strategies(self):
        # we have a proxy model for now given that we don't want to have to have g:XXX all registered on the Gremlin traversal machine (yet)
        assert {"@type": "g:SubgraphStrategy", "@value": {}} == json.loads(
            self.graphson_writer.writeObject(SubgraphStrategy))
        assert {"@type": "g:SubgraphStrategy", "@value": {
            "vertices": {"@type": "g:Bytecode", "@value": {"step": [["has", "name", "marko"]]}}}} == json.loads(
            self.graphson_writer.writeObject(SubgraphStrategy(vertices=__.has("name", "marko"))))

    def test_graph(self):
        # TODO: this assert is not compatible with python 3 and now that we test with both 2 and 3 it fails
        assert {"@type": "g:Vertex",
                "@value": {"id": {"@type": "g:Int64", "@value": 12}, "label": "person"}} == json.loads(
            self.graphson_writer.writeObject(Vertex(long(12), "person")))

        assert {"@type": "g:Edge", "@value": {"id": {"@type": "g:Int32", "@value": 7},
                                              "outV": {"@type": "g:Int32", "@value": 0},
                                              "outVLabel": "person",
                                              "label": "knows",
                                              "inV": {"@type": "g:Int32", "@value": 1},
                                              "inVLabel": "dog"}} == json.loads(
            self.graphson_writer.writeObject(Edge(7, Vertex(0, "person"), "knows", Vertex(1, "dog"))))
        assert {"@type": "g:VertexProperty", "@value": {"id": "blah", "label": "keyA", "value": True,
                                                        "vertex": "stephen"}} == json.loads(
            self.graphson_writer.writeObject(VertexProperty("blah", "keyA", True, Vertex("stephen"))))

        assert {"@type": "g:Property",
                "@value": {"key": "name", "value": "marko", "element": {"@type": "g:VertexProperty",
                                                                        "@value": {
                                                                            "vertex": "vertexId",
                                                                            "id": {"@type": "g:Int32", "@value": 1234},
                                                                            "label": "aKey"}}}} == json.loads(
            self.graphson_writer.writeObject(
                Property("name", "marko", VertexProperty(1234, "aKey", 21345, Vertex("vertexId")))))

        vertex = self.graphson_reader.readObject(self.graphson_writer.writeObject(Vertex(1, "person")))
        assert 1 == vertex.id
        assert "person" == vertex.label

        edge = self.graphson_reader.readObject(
            self.graphson_writer.writeObject(Edge(3, Vertex(1, "person"), "knows", Vertex(2, "dog"))))
        assert "knows" == edge.label
        assert 3 == edge.id
        assert 1 == edge.outV.id
        assert 2 == edge.inV.id

        vertex_property = self.graphson_reader.readObject(
            self.graphson_writer.writeObject(VertexProperty(1, "age", 32, Vertex(1))))
        assert 1 == vertex_property.id
        assert "age" == vertex_property.key
        assert 32 == vertex_property.value

        property = self.graphson_reader.readObject(self.graphson_writer.writeObject(Property("age", 32.2, Edge(1,Vertex(2),"knows",Vertex(3)))))
        assert "age" == property.key
        assert 32.2 == property.value

    def test_custom_mapping(self):
        # extended mapping
        class X(object):
            pass

        serdes = Mock()
        writer = GraphSONWriter(serializer_map={X: serdes})
        assert X in writer.serializers

        # base dicts are not modified
        assert X not in gremlin_python.structure.io.graphsonV3d0._serializers

        obj = X()
        d = writer.toDict(obj)
        serdes.dictify.assert_called_once_with(obj, writer)
        assert d is serdes.dictify()

        # overridden mapping
        serdes = Mock()
        writer = GraphSONWriter(serializer_map={int: serdes})
        assert gremlin_python.structure.io.graphsonV3d0._serializers[int] is not writer.serializers[int]

        value = 3
        d = writer.toDict(value)
        serdes.dictify.assert_called_once_with(value, writer)
        assert d is serdes.dictify()

    def test_write_long(self):
        mapping = self.graphson_writer.toDict(1)
        assert mapping['@type'] == 'g:Int32'
        assert mapping['@value'] == 1

        mapping = self.graphson_writer.toDict(long(1))
        assert mapping['@type'] == 'g:Int64'
        assert mapping['@value'] == 1
Пример #8
0
 def get(self):
     reader = GraphSONReader(self.deserializers)
     return reader