class TestDataQualityOperator(unittest.TestCase):
def setUp(self):
"""
Init a temporary table with some data.
"""
self.table_name = "booking_all_v2"
self.ts_nodash = (
FakedDatetime.now().isoformat().replace("-", "").replace(":", "")
)
self.tmp_table_name = f"{self.table_name}_{self.ts_nodash}"
self.now = FakedDatetime.now()
sql = [
"DROP SCHEMA if exists tmp CASCADE;",
"DROP SCHEMA if exists data_quality CASCADE;",
"CREATE SCHEMA IF NOT EXISTS tmp;",
"CREATE SCHEMA IF NOT EXISTS data_quality;",
"CREATE SCHEMA IF NOT EXISTS hello;",
f"""
CREATE TABLE IF NOT EXISTS tmp.{self.table_name}(
id SERIAL PRIMARY KEY,
src text,
dst text,
price int,
turnover_after_refunds double precision,
initial_price double precision,
created_at timestamptz
)
""",
f"""
CREATE TABLE IF NOT EXISTS tmp.{self.tmp_table_name}(
id SERIAL PRIMARY KEY,
src text,
dst text,
price int,
turnover_after_refunds double precision,
initial_price double precision,
created_at timestamptz
)
""",
f"""
INSERT INTO tmp.{self.table_name}_{self.ts_nodash}
(src, dst, price, turnover_after_refunds, initial_price, created_at)
VALUES
('BTS', NULL, 1, 100, 11, '2018-09-12T13:00:00'),
-- this is older than 30 days.
-- not in stats when time_filter = `created_at`
(NULL, 'PEK', 33, 1.1, 13, '2018-01-12T13:00:00'),
('VIE', 'JFK', 4, 5.5, 23.4, '2018-09-11T13:00:00'),
('VIE', 'VIE', 4, 0.0, 0.0, '2018-09-11T13:00:00')
""",
f"""
INSERT INTO tmp.{self.table_name}
(src, dst, price, turnover_after_refunds, initial_price, created_at)
VALUES
('BTS', NULL, 1, 100, 11, '2018-09-12T13:00:00'),
-- this is older than 30 days.
-- not in stats when time_filter = `created_at`
(NULL, 'PEK', 33, 1.1, 13, '2018-01-12T13:00:00'),
('VIE', 'JFK', 4, 5.5, 23.4, '2018-09-11T13:00:00'),
('VIE', 'VIE', 4, 0.0, 0.0, '2018-09-11T13:00:00')
""",
]
self.conn = Connector(TEST_DB_URI)
for s in sql:
self.conn.execute(s)
self.contessa_runner = ContessaRunner(TEST_DB_URI)
def tearDown(self):
"""
Drop all created tables.
"""
self.conn.execute(f"DROP schema tmp CASCADE;")
self.conn.execute(f"DROP schema data_quality CASCADE;")
self.conn.execute(f"DROP schema hello CASCADE;")
DQBase.metadata.clear()
@mock.patch("contessa.executor.datetime", FakedDatetime)
def test_execute_tmp(self):
sql = """
SELECT
CASE WHEN src = 'BTS' and dst is null THEN false ELSE true END as res
from {{ table_fullname }}
"""
rules = [
{"name": "not_null", "column": "dst", "time_filter": "created_at"},
{"name": "gt", "column": "price", "value": 10, "time_filter": "created_at"},
{"name": "sql", "sql": sql, "description": "test sql rule"},
{"name": "not", "column": "src", "value": "dst"},
]
self.contessa_runner.run(
check_table={"schema_name": "tmp", "table_name": self.tmp_table_name},
result_table={"schema_name": "data_quality", "table_name": self.table_name},
raw_rules=rules,
context={"task_ts": self.now},
)
rows = self.conn.get_pandas_df(
f"""
SELECT * from data_quality.quality_check_{self.table_name}
order by created_at
"""
)
self.assertEqual(rows.shape[0], 4)
notnull_rule = rows.loc[0]
self.assertEqual(notnull_rule["failed"], 1)
self.assertEqual(notnull_rule["passed"], 2)
self.assertEqual(notnull_rule["attribute"], "dst")
self.assertEqual(notnull_rule["task_ts"].timestamp(), self.now.timestamp())
gt_rule = rows.loc[1]
self.assertEqual(gt_rule["failed"], 3)
self.assertEqual(gt_rule["passed"], 0)
self.assertEqual(gt_rule["attribute"], "price")
sql_rule = rows.loc[2]
self.assertEqual(sql_rule["failed"], 1)
self.assertEqual(sql_rule["passed"], 3)
self.assertEqual(sql_rule["attribute"], None)
not_column_rule = rows.loc[3]
self.assertEqual(not_column_rule["failed"], 1)
self.assertEqual(not_column_rule["passed"], 3)
self.assertEqual(not_column_rule["attribute"], "src")
@mock.patch("contessa.executor.datetime", FakedDatetime)
def test_execute_dst(self):
sql = """
SELECT
CASE WHEN src = 'BTS' and dst is null THEN false ELSE true END as res
from {{ table_fullname }}
where created_at between timestamptz '{{task_ts}}' and timestamptz '{{task_ts}}' + interval '1 hour'
"""
rules = [
{"name": "not_null", "column": "dst", "time_filter": "created_at"},
{"name": "sql", "sql": sql, "description": "test sql rule"},
]
self.contessa_runner.run(
check_table={"schema_name": "tmp", "table_name": self.tmp_table_name},
result_table={"schema_name": "data_quality", "table_name": self.table_name},
raw_rules=rules,
context={"task_ts": self.now},
)
rows = self.conn.get_pandas_df(
f"""
SELECT * from data_quality.quality_check_{self.table_name}
order by created_at
"""
)
self.assertEqual(rows.shape[0], 2)
notnull_rule = rows.loc[0]
self.assertEqual(notnull_rule["failed"], 1)
self.assertEqual(notnull_rule["passed"], 2)
self.assertEqual(notnull_rule["attribute"], "dst")
self.assertEqual(notnull_rule["task_ts"].timestamp(), self.now.timestamp())
sql_rule = rows.loc[1]
self.assertEqual(sql_rule["failed"], 1)
self.assertEqual(sql_rule["passed"], 0)
self.assertEqual(sql_rule["attribute"], None)
def test_result_table_without_prefix(self):
rules = [{"name": "not_null", "column": "dst", "time_filter": "created_at"}]
self.contessa_runner.run(
check_table={"schema_name": "tmp", "table_name": self.tmp_table_name},
result_table={
"schema_name": "data_quality",
"table_name": "abcde",
"use_prefix": False,
},
raw_rules=rules,
context={"task_ts": self.now},
)
rows = self.conn.get_pandas_df(
f"""
SELECT 1 from data_quality.abcde
"""
)
self.assertEqual(rows.shape[0], 1)
def test_different_schema(self):
rules = [{"name": "not_null", "column": "dst", "time_filter": "created_at"}]
self.contessa_runner.run(
check_table={"schema_name": "tmp", "table_name": self.tmp_table_name},
result_table={"schema_name": "hello", "table_name": "abcde"},
raw_rules=rules,
context={"task_ts": self.now},
)
rows = self.conn.get_pandas_df(
f"""
SELECT 1 from hello.quality_check_abcde
"""
)
self.assertEqual(rows.shape[0], 1)
class TestConsistencyChecker(unittest.TestCase):
def setUp(self):
"""
Init a temporary table with some data.
"""
self.left_table_name = "raw_booking"
self.right_table_name = "booking"
self.result_table_name = "booking"
self.ts_nodash = (FakedDatetime.now().isoformat().replace("-",
"").replace(
":", ""))
self.now = FakedDatetime.now()
sql = [
"DROP SCHEMA if exists tmp CASCADE;",
"DROP SCHEMA if exists data_quality CASCADE;",
"CREATE SCHEMA IF NOT EXISTS tmp;",
"CREATE SCHEMA IF NOT EXISTS data_quality;",
"CREATE SCHEMA IF NOT EXISTS hello;",
f"""
CREATE TABLE IF NOT EXISTS tmp.{self.left_table_name}(
id SERIAL PRIMARY KEY,
src text,
dst text,
price int,
turnover_after_refunds double precision,
initial_price double precision,
created_at timestamptz
)
""",
f"""
CREATE TABLE IF NOT EXISTS hello.{self.right_table_name}(
id SERIAL PRIMARY KEY,
src text,
dst text,
price int,
turnover_after_refunds double precision,
initial_price double precision,
created_at timestamptz
)
""",
f"""
INSERT INTO tmp.{self.left_table_name}
(src, dst, price, turnover_after_refunds, initial_price, created_at)
VALUES
('BTS', NULL, 1, 100, 11, '2018-09-12T11:50:00'),
(NULL, 'PEK', 33, 1.1, 13, '2018-01-12T15:50:00'),
('VIE', 'JFK', 4, 5.5, 23.4, '2018-09-11T11:50:00'),
('VIE', 'VIE', 4, 0.0, 0.0, '2018-09-11T11:50:00')
""",
f"""
INSERT INTO hello.{self.right_table_name}
(src, dst, price, turnover_after_refunds, initial_price, created_at)
VALUES
('BTS', NULL, 1, 100, 11, '2018-09-12T11:50:00'),
(NULL, 'PEK', 33, 1.1, 13, '2018-01-12T15:50:00'),
('VIE', 'JFK', 4, 5.5, 23.4, '2018-09-11T11:50:00')
""",
]
self.conn = Connector(TEST_DB_URI)
for s in sql:
self.conn.execute(s)
self.consistency_checker = ConsistencyChecker(TEST_DB_URI)
def tearDown(self):
"""
Drop all created tables.
"""
self.conn.execute(f"DROP schema tmp CASCADE;")
self.conn.execute(f"DROP schema data_quality CASCADE;")
self.conn.execute(f"DROP schema hello CASCADE;")
DQBase.metadata.clear()
@mock.patch("contessa.executor.datetime", FakedDatetime)
def test_execute_consistency_false(self):
self.consistency_checker.run(
self.consistency_checker.COUNT,
left_check_table={
"schema_name": "tmp",
"table_name": self.left_table_name
},
right_check_table={
"schema_name": "hello",
"table_name": self.right_table_name,
},
result_table={
"schema_name": "data_quality",
"table_name": self.result_table_name,
},
context={"task_ts": self.now},
)
rows = self.conn.get_pandas_df(f"""
SELECT * from data_quality.consistency_check_{self.result_table_name}
order by created_at
""")
self.assertEqual(rows.iloc[0]["status"], "invalid")
@mock.patch("contessa.executor.datetime", FakedDatetime)
def test_execute_consistency_true(self):
# add missing record to the right table
self.conn.execute(f"""
INSERT INTO hello.{self.right_table_name}
(src, dst, price, turnover_after_refunds, initial_price, created_at)
VALUES
('VIE', 'VIE', 4, 0.0, 0.0, '2018-09-11T11:50:00')
""")
self.consistency_checker.run(
self.consistency_checker.COUNT,
left_check_table={
"schema_name": "tmp",
"table_name": self.left_table_name
},
right_check_table={
"schema_name": "hello",
"table_name": self.right_table_name,
},
result_table={
"schema_name": "data_quality",
"table_name": self.result_table_name,
},
context={"task_ts": self.now},
)
rows = self.conn.get_pandas_df(f"""
SELECT * from data_quality.consistency_check_{self.result_table_name}
order by created_at
""")
self.assertEqual(rows.iloc[0]["status"], "valid")
@mock.patch("contessa.executor.datetime", FakedDatetime)
def test_execute_consistency_diff(self):
""" Test scenario where table diff is done on tables with different column order."""
self.inconsistent_colums_left = "user"
self.inconsistent_colums_right = "user_inconsistent"
self.conn = Connector(TEST_DB_URI)
self.consistency_checker = ConsistencyChecker(TEST_DB_URI)
sql = [
f"""
CREATE TABLE IF NOT EXISTS tmp.{self.inconsistent_colums_left}(
id SERIAL PRIMARY KEY,
name text
)
""",
f"""
CREATE TABLE IF NOT EXISTS tmp.{self.inconsistent_colums_right}(
name text,
id SERIAL PRIMARY KEY
)
""",
f"""
INSERT INTO tmp.{self.inconsistent_colums_left}
VALUES
(1, 'John Doe')
""",
f"""
INSERT INTO tmp.{self.inconsistent_colums_right}
VALUES
('John Doe', 1)
""",
]
for s in sql:
self.conn.execute(s)
self.consistency_checker.run(
self.consistency_checker.DIFF,
left_check_table={
"schema_name": "tmp",
"table_name": self.inconsistent_colums_left,
},
right_check_table={
"schema_name": "tmp",
"table_name": self.inconsistent_colums_right,
},
result_table={
"schema_name": "data_quality",
"table_name": self.result_table_name,
},
context={"task_ts": self.now},
)
rows = self.conn.get_pandas_df(f"""
SELECT * from data_quality.consistency_check_{self.result_table_name}
order by created_at
""")
self.assertEqual(rows.iloc[0]["status"], "valid")
