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test_basic.py
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import io
import time
import unittest
from unittest.mock import patch
from pymysql.protocol import MysqlPacket
from pymysqlreplication import BinLogStreamReader
from pymysqlreplication.constants.BINLOG import *
from pymysqlreplication.constants.NONE_SOURCE import *
from pymysqlreplication.event import *
from pymysqlreplication.gtid import Gtid, GtidSet
from pymysqlreplication.json_binary import JsonDiff, JsonDiffOperation
from pymysqlreplication.packet import BinLogPacketWrapper
from pymysqlreplication.row_event import *
from pymysqlreplication.tests import base
__all__ = [
"TestBasicBinLogStreamReader",
"TestMultipleRowBinLogStreamReader",
"TestCTLConnectionSettings",
"TestGtidBinLogStreamReader",
"TestMariadbBinlogStreamReader",
"TestStatementConnectionSetting",
"TestRowsQueryLogEvents",
"TestOptionalMetaData",
"TestColumnValueNoneSources",
"TestJsonPartialUpdate",
]
class TestBasicBinLogStreamReader(base.PyMySQLReplicationTestCase):
def ignoredEvents(self):
return [
GtidEvent,
PreviousGtidsEvent,
MariadbStartEncryptionEvent,
MariadbGtidListEvent,
MariadbBinLogCheckPointEvent,
MariadbGtidEvent,
]
def test_allowed_event_list(self):
self.assertEqual(len(self.stream._allowed_event_list(None, None, False)), 25)
self.assertEqual(len(self.stream._allowed_event_list(None, None, True)), 24)
self.assertEqual(
len(self.stream._allowed_event_list(None, [RotateEvent], False)), 24
)
self.assertEqual(
len(self.stream._allowed_event_list([RotateEvent], None, False)), 1
)
def test_read_query_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
event = self.stream.fetchone()
self.assertEqual(event.position, 4)
self.assertEqual(event.next_binlog, self.bin_log_basename() + ".000001")
self.assertIsInstance(event, RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
event = self.stream.fetchone()
self.assertIsInstance(event, QueryEvent)
self.assertEqual(event.query, query)
def test_read_query_event_with_unicode(self):
query = "CREATE TABLE `testÈ` (id INT NOT NULL AUTO_INCREMENT, dataÈ VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
event = self.stream.fetchone()
self.assertEqual(event.position, 4)
self.assertEqual(event.next_binlog, self.bin_log_basename() + ".000001")
self.assertIsInstance(event, RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
event = self.stream.fetchone()
self.assertIsInstance(event, QueryEvent)
self.assertEqual(event.query, query)
def test_reading_rotate_event(self):
query = "CREATE TABLE test_2 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.stream.close()
query = "CREATE TABLE test_3 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
# Rotate event
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
""" `test_load_query_event` needs statement-based binlog
def test_load_query_event(self):
# prepare csv
with open("/tmp/test_load_query.csv", "w") as fp:
fp.write("1,aaa\n2,bbb\n3,ccc\n4,ddd\n")
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "LOAD DATA INFILE '/tmp/test_load_query.csv' INTO TABLE test \
FIELDS TERMINATED BY ',' \
ENCLOSED BY '\"' \
LINES TERMINATED BY '\r\n'"
self.execute(query)
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# create table
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
# begin
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), BeginLoadQueryEvent)
self.assertIsInstance(self.stream.fetchone(), ExecuteLoadQueryEvent)
self.assertIsInstance(self.stream.fetchone(), XidEvent)
"""
def test_connection_stream_lost_event(self):
self.stream.close()
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
blocking=True,
ignored_events=self.ignoredEvents(),
)
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query2 = "INSERT INTO test (data) VALUES('a')"
for i in range(0, 10000):
self.execute(query2)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
event = self.stream.fetchone()
self.assertIsInstance(event, QueryEvent)
self.assertEqual(event.query, query)
self.conn_control.kill(self.stream._stream_connection.thread_id())
for i in range(0, 10000):
event = self.stream.fetchone()
self.assertIsNotNone(event)
def test_filtering_only_events(self):
self.stream.close()
self.stream = BinLogStreamReader(
self.database, server_id=1024, only_events=[QueryEvent]
)
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
event = self.stream.fetchone()
self.assertIsInstance(event, QueryEvent)
self.assertEqual(event.query, query)
def test_filtering_ignore_events(self):
self.stream.close()
self.stream = BinLogStreamReader(
self.database, server_id=1024, ignored_events=[QueryEvent]
)
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
event = self.stream.fetchone()
self.assertIsInstance(event, RotateEvent)
def test_filtering_table_event_with_only_tables(self):
self.stream.close()
self.assertEqual(self.bin_log_format(), "ROW")
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
only_events=[WriteRowsEvent],
only_tables=["test_2"],
)
query = "CREATE TABLE test_2 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "CREATE TABLE test_3 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
self.execute("INSERT INTO test_2 (data) VALUES ('alpha')")
self.execute("INSERT INTO test_3 (data) VALUES ('alpha')")
self.execute("INSERT INTO test_2 (data) VALUES ('beta')")
self.execute("COMMIT")
event = self.stream.fetchone()
self.assertEqual(event.table, "test_2")
event = self.stream.fetchone()
self.assertEqual(event.table, "test_2")
def test_filtering_table_event_with_ignored_tables(self):
self.stream.close()
self.assertEqual(self.bin_log_format(), "ROW")
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
only_events=[WriteRowsEvent],
ignored_tables=["test_2"],
)
query = "CREATE TABLE test_2 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "CREATE TABLE test_3 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
self.execute("INSERT INTO test_2 (data) VALUES ('alpha')")
self.execute("INSERT INTO test_3 (data) VALUES ('alpha')")
self.execute("INSERT INTO test_2 (data) VALUES ('beta')")
self.execute("COMMIT")
event = self.stream.fetchone()
self.assertEqual(event.table, "test_3")
def test_filtering_table_event_with_only_tables_and_ignored_tables(self):
self.stream.close()
self.assertEqual(self.bin_log_format(), "ROW")
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
only_events=[WriteRowsEvent],
only_tables=["test_2"],
ignored_tables=["test_3"],
)
query = "CREATE TABLE test_2 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "CREATE TABLE test_3 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
self.execute("INSERT INTO test_2 (data) VALUES ('alpha')")
self.execute("INSERT INTO test_3 (data) VALUES ('alpha')")
self.execute("INSERT INTO test_2 (data) VALUES ('beta')")
self.execute("COMMIT")
event = self.stream.fetchone()
self.assertEqual(event.table, "test_2")
def test_write_row_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello World')"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the Create Table
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
event = self.stream.fetchone()
if self.isMySQL56AndMore():
self.assertEqual(event.event_type, WRITE_ROWS_EVENT_V2)
else:
self.assertEqual(event.event_type, WRITE_ROWS_EVENT_V1)
self.assertIsInstance(event, WriteRowsEvent)
self.assertEqual(event.schema, "pymysqlreplication_test")
self.assertEqual(event.table, "test")
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(event.rows[0]["values"]["id"], 1)
self.assertEqual(event.rows[0]["values"]["data"], "Hello World")
self.assertEqual(event.columns[1].name, "data")
def test_delete_row_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello World')"
self.execute(query)
self.resetBinLog()
query = "DELETE FROM test WHERE id = 1"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
event = self.stream.fetchone()
if self.isMySQL56AndMore():
self.assertEqual(event.event_type, DELETE_ROWS_EVENT_V2)
else:
self.assertEqual(event.event_type, DELETE_ROWS_EVENT_V1)
self.assertIsInstance(event, DeleteRowsEvent)
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(event.rows[0]["values"]["id"], 1)
self.assertEqual(event.rows[0]["values"]["data"], "Hello World")
def test_update_row_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello')"
self.execute(query)
self.resetBinLog()
query = "UPDATE test SET data = 'World' WHERE id = 1"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
event = self.stream.fetchone()
if self.isMySQL56AndMore():
self.assertEqual(event.event_type, UPDATE_ROWS_EVENT_V2)
else:
self.assertEqual(event.event_type, UPDATE_ROWS_EVENT_V1)
self.assertIsInstance(event, UpdateRowsEvent)
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(event.rows[0]["before_values"]["id"], 1)
self.assertEqual(event.rows[0]["before_values"]["data"], "Hello")
self.assertEqual(event.rows[0]["after_values"]["id"], 1)
self.assertEqual(event.rows[0]["after_values"]["data"], "World")
def test_minimal_image_write_row_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "SET SESSION binlog_row_image = 'minimal'"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello World')"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the Create Table
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
event = self.stream.fetchone()
if self.isMySQL56AndMore():
self.assertEqual(event.event_type, WRITE_ROWS_EVENT_V2)
else:
self.assertEqual(event.event_type, WRITE_ROWS_EVENT_V1)
self.assertIsInstance(event, WriteRowsEvent)
self.assertEqual(event.schema, "pymysqlreplication_test")
self.assertEqual(event.table, "test")
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(event.columns[1].name, "data")
self.assertEqual(event.rows[0]["values"]["id"], 1)
self.assertEqual(event.rows[0]["values"]["data"], "Hello World")
def test_minimal_image_delete_row_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello World')"
self.execute(query)
query = "SET SESSION binlog_row_image = 'minimal'"
self.execute(query)
self.resetBinLog()
query = "DELETE FROM test WHERE id = 1"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
event = self.stream.fetchone()
if self.isMySQL56AndMore():
self.assertEqual(event.event_type, DELETE_ROWS_EVENT_V2)
else:
self.assertEqual(event.event_type, DELETE_ROWS_EVENT_V1)
self.assertIsInstance(event, DeleteRowsEvent)
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(event.rows[0]["values"]["id"], 1)
self.assertEqual(event.rows[0]["values"]["data"], None)
def test_minimal_image_update_row_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello')"
self.execute(query)
query = "SET SESSION binlog_row_image = 'minimal'"
self.execute(query)
self.resetBinLog()
query = "UPDATE test SET data = 'World' WHERE id = 1"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
event = self.stream.fetchone()
if self.isMySQL56AndMore():
self.assertEqual(event.event_type, UPDATE_ROWS_EVENT_V2)
else:
self.assertEqual(event.event_type, UPDATE_ROWS_EVENT_V1)
self.assertIsInstance(event, UpdateRowsEvent)
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(event.rows[0]["before_values"]["id"], 1)
self.assertEqual(event.rows[0]["before_values"]["data"], None)
self.assertEqual(event.rows[0]["after_values"]["id"], None)
self.assertEqual(event.rows[0]["after_values"]["data"], "World")
def test_default_charset_parsing(self):
"""
Here, we want the database to include the binary charset into
the DEFAULT_CHARSET optional metadata block.
Also, we are adding an int field and two text fields to force
a difference in the index of the blob column in the table
and in the list of columns that have charset.
"""
query = """CREATE TABLE test (
id INT NOT NULL AUTO_INCREMENT,
text1 VARCHAR(255) NOT NULL,
text2 VARCHAR(255) NOT NULL,
data LONGBLOB NOT NULL,
PRIMARY KEY (id)
) DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;"""
self.execute(query)
query = "INSERT INTO test (text1, text2, data) VALUES(%s, %s, %s)"
self.execute_with_args(query, ("text", "text", b"data"))
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the Create Table
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
event = self.stream.fetchone()
self.assertIsInstance(event, TableMapEvent)
if event.table_map[event.table_id].column_name_flag:
columns = {c.name: c for c in event.columns}
assert columns["text1"].character_set_name == "utf8"
assert columns["text1"].collation_name.startswith("utf8")
assert columns["text2"].character_set_name == "utf8"
assert columns["text2"].collation_name.startswith("utf8")
assert columns["data"].character_set_name == "binary"
assert columns["data"].collation_name == "binary"
def test_log_pos(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello')"
self.execute(query)
self.execute("COMMIT")
for i in range(6):
self.stream.fetchone()
# record position after insert
log_file, log_pos = self.stream.log_file, self.stream.log_pos
query = "UPDATE test SET data = 'World' WHERE id = 1"
self.execute(query)
self.execute("COMMIT")
# resume stream from previous position
if self.stream is not None:
self.stream.close()
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
resume_stream=True,
log_file=log_file,
log_pos=log_pos,
ignored_events=self.ignoredEvents(),
)
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), XidEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
self.assertIsInstance(self.stream.fetchone(), UpdateRowsEvent)
self.assertIsInstance(self.stream.fetchone(), XidEvent)
def test_log_pos_handles_disconnects(self):
self.stream.close()
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
resume_stream=False,
only_events=[
FormatDescriptionEvent,
QueryEvent,
TableMapEvent,
WriteRowsEvent,
XidEvent,
],
)
query = "CREATE TABLE test (id INT PRIMARY KEY AUTO_INCREMENT, data VARCHAR (50) NOT NULL)"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello')"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
self.assertGreater(self.stream.log_pos, 0)
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
self.assertIsInstance(self.stream.fetchone(), WriteRowsEvent)
self.assertIsInstance(self.stream.fetchone(), XidEvent)
self.assertGreater(self.stream.log_pos, 0)
def test_skip_to_timestamp(self):
self.stream.close()
query = "CREATE TABLE test_1 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
time.sleep(1)
query = "SELECT UNIX_TIMESTAMP();"
timestamp = self.execute(query).fetchone()[0]
query2 = "CREATE TABLE test_2 (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query2)
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
skip_to_timestamp=timestamp,
ignored_events=self.ignoredEvents(),
)
event = self.stream.fetchone()
self.assertIsInstance(event, QueryEvent)
self.assertEqual(event.query, query2)
def test_end_log_pos(self):
"""Test end_log_pos parameter for BinLogStreamReader
MUST BE TESTED IN DEFAULT SYSTEM VARIABLES SETTING
Raises:
AssertionError: if null_bitmask isn't set as specified in 'bit_mask' variable
"""
self.execute(
"CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(id))"
)
self.execute("INSERT INTO test values (NULL)")
self.execute("INSERT INTO test values (NULL)")
self.execute("INSERT INTO test values (NULL)")
self.execute("INSERT INTO test values (NULL)")
self.execute("INSERT INTO test values (NULL)")
self.execute("COMMIT")
# import os
# os._exit(1)
binlog = self.execute("SHOW BINARY LOGS").fetchone()[0]
self.stream.close()
self.stream = BinLogStreamReader(
self.database, server_id=1024, log_pos=0, log_file=binlog, end_log_pos=888
)
last_log_pos = 0
last_event_type = 0
for event in self.stream:
last_log_pos = self.stream.log_pos
last_event_type = event.event_type
self.assertEqual(last_log_pos, 888)
self.assertEqual(last_event_type, TABLE_MAP_EVENT)
def test_event_validation(self):
def create_binlog_packet_wrapper(pkt):
return BinLogPacketWrapper(
pkt,
self.stream.table_map,
self.stream._ctl_connection,
self.stream.mysql_version,
self.stream._BinLogStreamReader__use_checksum,
self.stream._BinLogStreamReader__allowed_events_in_packet,
self.stream._BinLogStreamReader__only_tables,
self.stream._BinLogStreamReader__ignored_tables,
self.stream._BinLogStreamReader__only_schemas,
self.stream._BinLogStreamReader__ignored_schemas,
self.stream._BinLogStreamReader__freeze_schema,
self.stream._BinLogStreamReader__ignore_decode_errors,
self.stream._BinLogStreamReader__verify_checksum,
self.stream._BinLogStreamReader__optional_meta_data,
)
self.stream.close()
self.stream = BinLogStreamReader(
self.database, server_id=1024, blocking=False, verify_checksum=True
)
# For event data, refer to the official document example data of mariaDB.
# https://mariadb.com/kb/en/query_event/#example-with-crc32
correct_event_data = (
# OK value
b"\x00"
# Header
b"q\x17(Z\x02\x8c'\x00\x00U\x00\x00\x00\x01\t\x00\x00\x00\x00"
# Content
b"f\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1a\x00"
b"\x00\x00\x00\x00\x00\x01\x00\x00\x00P\x00\x00"
b"\x00\x00\x06\x03std\x04\x08\x00\x08\x00\x08\x00\x00"
b"TRUNCATE TABLE test.t4"
# CRC 32, 4 Bytes
b"Ji\x9e\xed"
)
# Assume a bit flip occurred while data was being transmitted q(1001000) -> U(0110111)
modified_byte = b"U"
wrong_event_data = (
correct_event_data[:1] + modified_byte + correct_event_data[2:]
)
packet = MysqlPacket(correct_event_data, 0)
wrong_packet = MysqlPacket(wrong_event_data, 0)
self.stream.fetchone() # for '_ctl_connection' parameter
binlog_event = create_binlog_packet_wrapper(packet)
wrong_event = create_binlog_packet_wrapper(wrong_packet)
self.assertEqual(binlog_event.event._is_event_valid, True)
self.assertNotEqual(wrong_event.event._is_event_valid, True)
def test_json_update(self):
self.stream.close()
self.stream = BinLogStreamReader(
self.database, server_id=1024, only_events=[UpdateRowsEvent]
)
create_query = (
"CREATE TABLE setting_table( id INT, setting JSON);"
)
insert_query = """INSERT INTO setting_table (id, setting) VALUES (1, '{"btn": true, "model": false}');"""
update_query = """ UPDATE setting_table
SET setting = JSON_REMOVE(setting, '$.model')
WHERE id=1;
"""
self.execute(create_query)
self.execute(insert_query)
self.execute(update_query)
self.execute("COMMIT;")
event = self.stream.fetchone()
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(
event.rows[0]["before_values"]["setting"],
{b"btn": True, b"model": False},
),
self.assertEqual(event.rows[0]["after_values"]["setting"], {b"btn": True}),
def test_format_description_event(self):
if self.isMariaDB():
self.skipTest("This is for MySQL. There is a second test_format_description_event for MariaDB")
self.stream.close()
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
blocking=False,
only_events=[FormatDescriptionEvent],
)
event = self.stream.fetchone()
self.assertIsInstance(event, FormatDescriptionEvent)
self.assertIsInstance(event.binlog_version, tuple)
self.assertIsInstance(event.mysql_version_str, str)
self.assertTrue(
event.mysql_version_str.startswith("5.")
or event.mysql_version_str.startswith("8.")
) # Example check
self.assertIsInstance(event.common_header_len, int)
self.assertIsInstance(event.post_header_len, tuple)
self.assertIsInstance(event.mysql_version, tuple)
self.assertEqual(len(event.mysql_version), 3)
self.assertEqual(event.dbms, "mysql")
self.assertIsInstance(event.server_version_split, tuple)
self.assertEqual(len(event.server_version_split), 3)
self.assertIsInstance(event.number_of_event_types, int)
class TestMultipleRowBinLogStreamReader(base.PyMySQLReplicationTestCase):
def setUp(self):
super(TestMultipleRowBinLogStreamReader, self).setUp()
if self.isMySQL8014AndMore():
self.execute("SET GLOBAL binlog_row_metadata='FULL';")
self.execute("SET GLOBAL binlog_row_image='FULL';")
def ignoredEvents(self):
return [
GtidEvent,
PreviousGtidsEvent,
MariadbStartEncryptionEvent,
MariadbGtidListEvent,
MariadbBinLogCheckPointEvent,
MariadbGtidEvent,
]
def test_insert_multiple_row_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
self.resetBinLog()
query = "INSERT INTO test (data) VALUES('Hello'),('World')"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
event = self.stream.fetchone()
if self.isMySQL56AndMore():
self.assertEqual(event.event_type, WRITE_ROWS_EVENT_V2)
else:
self.assertEqual(event.event_type, WRITE_ROWS_EVENT_V1)
self.assertIsInstance(event, WriteRowsEvent)
self.assertEqual(len(event.rows), 2)
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(event.rows[0]["values"]["id"], 1)
self.assertEqual(event.rows[0]["values"]["data"], "Hello")
self.assertEqual(event.rows[1]["values"]["id"], 2)
self.assertEqual(event.rows[1]["values"]["data"], "World")
def test_update_multiple_row_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello')"
self.execute(query)
query = "INSERT INTO test (data) VALUES('World')"
self.execute(query)
self.resetBinLog()
query = "UPDATE test SET data = 'Toto'"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
event = self.stream.fetchone()
if self.isMySQL56AndMore():
self.assertEqual(event.event_type, UPDATE_ROWS_EVENT_V2)
else:
self.assertEqual(event.event_type, UPDATE_ROWS_EVENT_V1)
self.assertIsInstance(event, UpdateRowsEvent)
self.assertEqual(len(event.rows), 2)
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(event.rows[0]["before_values"]["id"], 1)
self.assertEqual(event.rows[0]["before_values"]["data"], "Hello")
self.assertEqual(event.rows[0]["after_values"]["id"], 1)
self.assertEqual(event.rows[0]["after_values"]["data"], "Toto")
self.assertEqual(event.rows[1]["before_values"]["id"], 2)
self.assertEqual(event.rows[1]["before_values"]["data"], "World")
self.assertEqual(event.rows[1]["after_values"]["id"], 2)
self.assertEqual(event.rows[1]["after_values"]["data"], "Toto")
def test_delete_multiple_row_event(self):
query = "CREATE TABLE test (id INT NOT NULL AUTO_INCREMENT, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "INSERT INTO test (data) VALUES('Hello')"
self.execute(query)
query = "INSERT INTO test (data) VALUES('World')"
self.execute(query)
self.resetBinLog()
query = "DELETE FROM test"
self.execute(query)
self.execute("COMMIT")
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# QueryEvent for the BEGIN
if not self.isMariaDB():
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
event = self.stream.fetchone()
if self.isMySQL56AndMore():
self.assertEqual(event.event_type, DELETE_ROWS_EVENT_V2)
else:
self.assertEqual(event.event_type, DELETE_ROWS_EVENT_V1)
self.assertIsInstance(event, DeleteRowsEvent)
self.assertEqual(len(event.rows), 2)
if event.table_map[event.table_id].column_name_flag:
self.assertEqual(event.rows[0]["values"]["id"], 1)
self.assertEqual(event.rows[0]["values"]["data"], "Hello")
self.assertEqual(event.rows[1]["values"]["id"], 2)
self.assertEqual(event.rows[1]["values"]["data"], "World")
def test_ignore_decode_errors(self):
if self.isMySQL80AndMore():
self.skipTest("MYSQL 8 Version Pymysql Data Error Incorrect string value")
problematic_unicode_string = (
b'[{"text":"\xed\xa0\xbd \xed\xb1\x8d Some string"}]'
)
self.stream.close()
self.execute("CREATE TABLE test (data VARCHAR(50) CHARACTER SET utf8mb4)")
self.execute_with_args(
"INSERT INTO test (data) VALUES (%s)", (problematic_unicode_string)
)
self.execute("COMMIT")
# Initialize with ignore_decode_errors=False
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
only_events=(WriteRowsEvent,),
ignore_decode_errors=False,
)
with self.assertRaises(UnicodeError):
event = self.stream.fetchone()
data = event.rows[0]["values"]["data"]
# Initialize with ignore_decode_errors=True
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
only_events=(WriteRowsEvent,),
ignore_decode_errors=True,
)
event = self.stream.fetchone()
if event.table_map[event.table_id].column_name_flag:
data = event.rows[0]["values"]["data"]
self.assertEqual(data, '[{"text":" Some string"}]')
def test_drop_column(self):
self.stream.close()
self.execute("CREATE TABLE test_drop_column (id INTEGER(11), data VARCHAR(50))")
self.execute("INSERT INTO test_drop_column VALUES (1, 'A value')")
self.execute("COMMIT")
self.execute("ALTER TABLE test_drop_column DROP COLUMN data")
self.execute("INSERT INTO test_drop_column VALUES (2)")
self.execute("COMMIT")
self.stream = BinLogStreamReader(
self.database, server_id=1024, only_events=(WriteRowsEvent,)
)
try:
self.stream.fetchone() # insert with two values
self.stream.fetchone() # insert with one value
except Exception as e:
self.fail(f"raised unexpected exception: {e}")
finally:
self.resetBinLog()
def test_alter_column(self):
if not self.isMySQL8014AndMore():
self.skipTest("Mysql version is under 8.0.14 - pass")
self.stream.close()
self.execute(
"CREATE TABLE test_alter_column (id INTEGER(11), data VARCHAR(50))"
)
self.execute("INSERT INTO test_alter_column VALUES (1, 'A value')")
self.execute("COMMIT")
self.execute(
"ALTER TABLE test_alter_column ADD COLUMN another_data VARCHAR(50) AFTER id"
)
self.execute(
"INSERT INTO test_alter_column VALUES (2, 'Another value', 'A value')"
)
self.execute("COMMIT")
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
only_events=(WriteRowsEvent,),
)
event = self.stream.fetchone()
self.assertEqual(event.rows[0]["values"]["data"], "A value")
event = self.stream.fetchone() # insert with three values
self.assertEqual(event.rows[0]["values"]["another_data"], "Another value")
self.assertEqual(event.rows[0]["values"]["data"], "A value")
class TestCTLConnectionSettings(base.PyMySQLReplicationTestCase):
def setUp(self, charset="utf8"):
super().setUp()
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
only_events=(WriteRowsEvent,),
)
def test_separate_ctl_settings_no_error(self):
self.execute("CREATE TABLE test (id INTEGER(11))")
self.execute("INSERT INTO test VALUES (1)")
self.execute("DROP TABLE test")
self.execute("COMMIT")
self.conn_control.cursor().execute("CREATE TABLE test (id INTEGER(11))")
self.conn_control.cursor().execute("INSERT INTO test VALUES (1)")
self.conn_control.cursor().execute("COMMIT")
try:
self.stream.fetchone()
except Exception as e:
self.fail(f"raised unexpected exception: {e}")
finally:
self.resetBinLog()
class TestGtidBinLogStreamReader(base.PyMySQLReplicationTestCase):
def setUp(self):
super().setUp()
if not self.supportsGTID:
raise unittest.SkipTest(
"database does not support GTID, skipping GTID tests"
)
def test_read_query_event(self):
query = "CREATE TABLE test (id INT NOT NULL, data VARCHAR (50) NOT NULL, PRIMARY KEY (id))"
self.execute(query)
query = "SELECT @@global.gtid_executed;"
gtid = self.execute(query).fetchone()[0]
self.stream.close()
self.stream = BinLogStreamReader(
self.database,
server_id=1024,
blocking=True,
auto_position=gtid,
ignored_events=[HeartbeatLogEvent],
)
self.assertIsInstance(self.stream.fetchone(), RotateEvent)
self.assertIsInstance(self.stream.fetchone(), FormatDescriptionEvent)
# Insert first event
query = "BEGIN;"
self.execute(query)
query = "INSERT INTO test (id, data) VALUES(1, 'Hello');"
self.execute(query)
query = "COMMIT;"
self.execute(query)
self.assertIsInstance(self.stream.fetchone(), PreviousGtidsEvent)
firstevent = self.stream.fetchone()
self.assertIsInstance(firstevent, GtidEvent)
self.assertIsInstance(self.stream.fetchone(), QueryEvent)
self.assertIsInstance(self.stream.fetchone(), TableMapEvent)
self.assertIsInstance(self.stream.fetchone(), WriteRowsEvent)
self.assertIsInstance(self.stream.fetchone(), XidEvent)
# Insert second event
query = "BEGIN;"
self.execute(query)
query = "INSERT INTO test (id, data) VALUES(2, 'Hello');"
self.execute(query)
query = "COMMIT;"
self.execute(query)