Created integration test for part_log table

dbms/tests/integration/test_part_log_table/configs/config_with_non_standard_part_log.xml

@@ -0,0 +1,6 @@
+<yandex>
+    <part_log>
+        <database>database_name</database>
+        <table>table_name</table>
+    </part_log>
+</yandex>

dbms/tests/integration/test_part_log_table/configs/config_with_standard_part_log.xml

@@ -0,0 +1,4 @@
+<yandex>
+    <part_log>
+    </part_log>
+</yandex>

dbms/tests/integration/test_part_log_table/test.py

@@ -0,0 +1,42 @@
+import time
+import pytest
+
+from helpers.cluster import ClickHouseCluster
+
+cluster = ClickHouseCluster(__file__)
+node1 = cluster.add_instance("node1")
+node2 = cluster.add_instance("node2", main_configs=["configs/config_with_standard_part_log.xml"])
+node3 = cluster.add_instance("node3", main_configs=["configs/config_with_non_standard_part_log.xml"])
+
+@pytest.fixture(scope="module")
+def start_cluster():
+    try:
+        cluster.start()
+        yield cluster
+    finally:
+        cluster.shutdown()
+
+def test_config_without_part_log(start_cluster):
+    assert "Table system.part_log doesn't exist" in node1.query_and_get_error("SELECT * FROM system.part_log")
+    node1.query("CREATE TABLE test_table(word String, value UInt64) ENGINE=MergeTree() ORDER BY value")
+    assert "Table system.part_log doesn't exist" in node1.query_and_get_error("SELECT * FROM system.part_log")
+    node1.query("INSERT INTO test_table VALUES ('name', 1)")
+    assert "Table system.part_log doesn't exist" in node1.query_and_get_error("SELECT * FROM system.part_log")
+
+def test_config_with_standard_part_log(start_cluster):
+    assert "Table system.part_log doesn't exist" in node2.query_and_get_error("SELECT * FROM system.part_log")
+    node2.query("CREATE TABLE test_table(word String, value UInt64) ENGINE=MergeTree() Order by value")
+    assert "Table system.part_log doesn't exist" in node2.query_and_get_error("SELECT * FROM system.part_log")
+    node2.query("INSERT INTO test_table VALUES ('name', 1)")
+    time.sleep(10)
+    assert node2.query("SELECT * FROM system.part_log") != ""
+
+def test_config_with_non_standard_part_log(start_cluster):
+    node3.query("CREATE DATABASE database_name")
+    assert "table_name" not in node3.query("SHOW TABLES FROM database_name")
+    node3.query("CREATE TABLE test_table(word String, value UInt64) ENGINE=MergeTree() ORDER BY value")
+    assert "table_name" not in node3.query("SHOW TABLES FROM database_name")
+    node3.query("INSERT INTO test_table VALUES ('name', 1)")
+    time.sleep(10)
+    assert "table_name" in node3.query("SHOW TABLES FROM database_name")
+