def test_read(self):
if self._driver in ["javascript"]:
self.skipTest(
"Transactional functions not implemented in testkit backend")
script = "retry_read.script"
if self._driver in ["go"]:
# Until Go is updated to use PULL with n
script = "retry_read_v3.script"
self._server.start(os.path.join(scripts_path, script))
num_retries = 0
def retry_once(tx):
nonlocal num_retries
num_retries = num_retries + 1
result = tx.run("RETURN 1")
record = result.next()
return record.values[0]
auth = AuthorizationToken(scheme="basic",
principal="neo4j",
credentials="pass")
driver = Driver(self._backend, "bolt://%s" % self._server.address,
auth)
session = driver.session("r")
x = session.readTransaction(retry_once)
self.assertIsInstance(x, types.CypherInt)
self.assertEqual(x.value, 1)
self.assertEqual(num_retries, 1)
session.close()
driver.close()
self._server.done()
def _run(self, n, script, end, expectedSequence, expectedError=False):
uri = "bolt://%s" % self._server.address
driver = Driver(self._backend, uri, AuthorizationToken(scheme="basic"))
self._server.start(script=script,
vars={
"#END#": end,
"#VERSION#": "4"
})
session = driver.session("w", fetchSize=n)
result = session.run("RETURN 1 AS n")
gotError = False
sequence = []
while True:
try:
next = result.next()
except Exception as e:
gotError = True
break
if isinstance(next, types.NullRecord):
break
sequence.append(next.values[0].value)
driver.close()
self._server.done()
self.assertEqual(expectedSequence, sequence)
self.assertEqual(expectedError, gotError)
def test_nested(self):
if get_driver_name() not in ['go', 'dotnet']:
self.skipTest(
"Need support for specifying session fetch size in testkit backend"
)
uri = "bolt://%s" % self._server.address
driver = Driver(self._backend, uri, AuthorizationToken(scheme="basic"))
self._server.start(script=TxRun.script_nested_n,
vars={"#VERSION#": "4"})
session = driver.session("w", fetchSize=1)
tx = session.beginTransaction()
res1 = tx.run("CYPHER")
seq = []
seqs = []
while True:
rec1 = res1.next()
if isinstance(rec1, types.NullRecord):
break
seq.append(rec1.values[0].value)
seq2 = []
res2 = tx.run("CYPHER")
while True:
rec2 = res2.next()
if isinstance(rec2, types.NullRecord):
break
seq2.append(rec2.values[0].value)
seqs.append(seq2)
tx.commit()
driver.close()
self._server.done()
self.assertEqual(["1_1", "1_2"], seq)
self.assertEqual([["2_1", "2_2"], ["3_1"]], seqs)
class Transport(unittest.TestCase):
def setUp(self):
self._backend = new_backend()
self._server = StubServer(9001)
self._driverName = get_driver_name()
auth = AuthorizationToken(scheme="basic", principal="neo4j", credentials="pass")
uri = "bolt://%s" % self._server.address
self._driver = Driver(self._backend, uri, auth)
self._session = self._driver.session("w")
def test_noop(self):
# Verifies that no op messages sent on bolt chunking layer are ignored. The no op messages
# are sent from server as a way to notify that the connection is still up.
# Bolt 4.1 >
bolt_version = "4.1"
self._server.start(script=script, vars = {"$bolt_version": bolt_version})
result = self._session.run("RETURN 1 as n")
record = result.next()
nilrec = result.next()
self._driver.close()
self._server.done()
# Verify the result
self.assertEqual(record.values[0].value, 1) # Indirectly verifies that we got a record
self.assertIsInstance(nilrec, types.NullRecord)
def setUp(self):
self._backend = new_backend()
self._server = StubServer(9001)
self._driverName = get_driver_name()
auth = AuthorizationToken(scheme="basic", principal="neo4j", credentials="pass")
uri = "bolt://%s" % self._server.address
self._driver = Driver(self._backend, uri, auth)
self._session = self._driver.session("w")
def try_connect(backend, server, scheme, host):
url = "%s://%s:%d" % (scheme, host, 6666)
# Doesn't really matter
auth = AuthorizationToken(scheme="basic",
principal="neo4j",
credentials="pass")
driver = Driver(backend, url, auth)
session = driver.session("r")
try:
result = session.run("RETURN 1 as n")
except:
pass
session.close()
driver.close()
return server.connected()
class TestDataTypes(unittest.TestCase):
def setUp(self):
self._backend = new_backend()
self._host, self._port = get_neo4j_host_and_port()
self._scheme = "bolt://%s:%d" % (self._host, self._port)
self._session = None
self._driver = None
def tearDown(self):
if self._session:
self._session.close()
if self._driver:
self._driver.close()
self._backend.close()
def createDriverAndSession(self):
auth_token = AuthorizationToken(
scheme="basic",
principal=os.environ.get(env_neo4j_user, "neo4j"),
credentials=os.environ.get(env_neo4j_pass, "pass"))
self._driver = Driver(self._backend, self._scheme, auth_token)
self._session = self._driver.session("w")
def verifyCanEcho(self, val):
result = self._session.run("RETURN $x as y", params={"x": val})
record = result.next()
self.assertEqual(record, types.Record(values=[val]))
def testShouldEchoBack(self):
if get_driver_name() in ['java']:
self.skipTest("Not implemented in backend")
vals = [
types.CypherBool(True),
types.CypherBool(False),
types.CypherNull(),
types.CypherInt(1),
types.CypherInt(-7),
types.CypherInt(-129),
types.CypherInt(129),
types.CypherInt(2147483647),
types.CypherInt(-2147483647),
#types.CypherFloat(9223372036854775807), # TODO: Investigate
#types.CypherFloat(-9223372036854775807),
#types.CypherFloat(1.7976931348623157E+308),
#types.CypherFloat(2.2250738585072014e-308),
#types.CypherFloat(4.9E-324),
#types.CypherFloat(0.0), # Js can not determine if it should be 0 or 0.0
types.CypherFloat(1.1),
types.CypherString("1"),
types.CypherString("-17∂ßå®"),
types.CypherString("String"),
types.CypherString(""),
]
self.createDriverAndSession()
for val in vals:
self.verifyCanEcho(val)
def testShouldEchoVeryLongList(self):
if get_driver_name() in ['java']:
self.skipTest("Not implemented in backend")
vals = [
types.CypherNull(),
types.CypherInt(1),
types.CypherFloat(1.1),
types.CypherString("hello"),
types.CypherBool(True),
]
self.createDriverAndSession()
for val in vals:
long_list = []
for i in range(1000):
long_list.append(val)
self.verifyCanEcho(types.CypherList(long_list))
def testShouldEchoVeryLongString(self):
if get_driver_name() in ['java']:
self.skipTest("Not implemented in backend")
self.createDriverAndSession()
long_string = "*" * 10000
self.verifyCanEcho(types.CypherString(long_string))
def testShouldEchoNestedLists(self):
if get_driver_name() in ['java']:
self.skipTest("Not implemented in backend")
test_lists = [
types.CypherList([
types.CypherInt(1),
types.CypherInt(2),
types.CypherInt(3),
types.CypherInt(4)
]),
types.CypherList([
types.CypherString("a"),
types.CypherString("b"),
types.CypherString("c"),
types.CypherString("˚C")
]),
types.CypherList([types.CypherBool(True),
types.CypherBool(False)]),
types.CypherList([
types.CypherFloat(1.1),
types.CypherFloat(2.2),
types.CypherFloat(3.3),
types.CypherFloat(4.4)
]),
types.CypherList([types.CypherNull(None),
types.CypherNull(None)]),
types.CypherList([
types.CypherNull(None),
types.CypherBool(True),
types.CypherString("Hello world"),
types.CypherInt(-1234567890),
types.CypherFloat(123.456)
])
]
self.createDriverAndSession()
self.verifyCanEcho(types.CypherList(test_lists))
def testShouldEchoNode(self):
self.createDriverAndSession()
result = self._session.run(
"CREATE (n:TestLabel {num: 1, txt: 'abc'}) RETURN n")
record = result.next()
self.assertNotIsInstance(record, types.NullRecord)
node = record.values[0]
self.assertIsInstance(node, types.CypherNode)
self.assertEqual(node.labels,
types.CypherList([types.CypherString('TestLabel')]))
self.assertEqual(
node.props,
types.CypherMap({
"num": types.CypherInt(1),
"txt": types.CypherString('abc')
}))
# Work in progress
def testShouldEchoVeryLongMap(self):
if get_driver_name() not in ['dotnet', 'go']:
self.skipTest("Not implemented in backend")
test_list = [
types.CypherNull(None),
types.CypherInt(1),
types.CypherFloat(1.1),
types.CypherString("Hello World"),
types.CypherBool(True)
]
self.createDriverAndSession()
long_map = {}
for cypherType in test_list:
long_map.clear()
for i in range(1000):
long_map[str(i)] = cypherType
self.verifyCanEcho(types.CypherMap(long_map))
def testShouldEchoNestedMap(self):
if get_driver_name() not in ['dotnet', 'go']:
self.skipTest("Not implemented in backend")
test_maps = {
"a":
types.CypherMap({
"a": types.CypherInt(1),
"b": types.CypherInt(2),
"c": types.CypherInt(3),
"d": types.CypherInt(4)
}),
"b":
types.CypherMap({
"a": types.CypherBool(True),
"b": types.CypherBool(False)
}),
"c":
types.CypherMap({
"a": types.CypherFloat(1.1),
"b": types.CypherFloat(2.2),
"c": types.CypherFloat(3.3)
}),
"d":
types.CypherMap({
"a": types.CypherString("a"),
"b": types.CypherString("b"),
"c": types.CypherString("c"),
"temp": types.CypherString("˚C")
}),
"e":
types.CypherMap({"a": types.CypherNull(None)}),
"f":
types.CypherMap({
"a": types.CypherInt(1),
"b": types.CypherBool(True),
"c": types.CypherFloat(3.3),
"d": types.CypherString("Hello World"),
"e": types.CypherNull(None)
}),
}
self.createDriverAndSession()
self.verifyCanEcho(types.CypherMap(test_maps))
def get_driver(backend):
""" Returns default driver for tests that do not test this aspect
"""
host, port = get_neo4j_host_and_port()
scheme = "bolt://%s:%d" % (host, port)
return Driver(backend, scheme, get_authorization())