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.graphsonV2d0._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.graphsonV2d0._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_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.graphsonV2d0._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.graphsonV2d0._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()
class TestGraphSONReader(object):
graphson_reader = GraphSONReader()
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":[["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)
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.graphsonV2d0._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.graphsonV2d0._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_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
class TestGraphSONWriter(object):
graphson_writer = GraphSONWriter()
graphson_reader = GraphSONReader()
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": "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: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 {"@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: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.graphsonV2d0._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.graphsonV2d0._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.fromtimestamp(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
class TestGraphSONReader(object):
graphson_reader = GraphSONReader()
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.graphsonV2d0._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.graphsonV2d0._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()
class TestGraphSONWriter(object):
graphson_writer = GraphSONWriter()
graphson_reader = GraphSONReader()
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: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.graphsonV2d0._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.graphsonV2d0._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
class TestGraphSONReader(object):
graphson_reader = GraphSONReader()
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":[["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)
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.graphsonV2d0._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.graphsonV2d0._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'