def test_is_time_druid_time_col(self):
"""Druid has a special __time column"""
col = TableColumn(column_name="__time", type="INTEGER")
self.assertEqual(col.is_dttm, None)
DruidEngineSpec.alter_new_orm_column(col)
self.assertEqual(col.is_dttm, True)
col = TableColumn(column_name="__not_time", type="INTEGER")
self.assertEqual(col.is_time, False)
def test_is_time_druid_time_col(self):
"""Druid has a special __time column"""
database = Database(database_name="druid_db", sqlalchemy_uri="druid://db")
tbl = SqlaTable(table_name="druid_tbl", database=database)
col = TableColumn(column_name="__time", type="INTEGER", table=tbl)
self.assertEqual(col.is_dttm, None)
DruidEngineSpec.alter_new_orm_column(col)
self.assertEqual(col.is_dttm, True)
col = TableColumn(column_name="__not_time", type="INTEGER", table=tbl)
self.assertEqual(col.is_temporal, False)
def test_convert_dttm(self):
dttm = self.get_dttm()
self.assertEqual(
DruidEngineSpec.convert_dttm("DATETIME", dttm),
"TIME_PARSE('2019-01-02T03:04:05')",
)
self.assertEqual(
DruidEngineSpec.convert_dttm("TIMESTAMP", dttm),
"TIME_PARSE('2019-01-02T03:04:05')",
)
self.assertEqual(
DruidEngineSpec.convert_dttm("DATE", dttm),
"CAST(TIME_PARSE('2019-01-02') AS DATE)",
)
def test_extras_with_ssl(self):
db = mock.Mock()
db.extra = default_db_extra
db.server_cert = ssl_certificate
extras = DruidEngineSpec.get_extra_params(db)
connect_args = extras["engine_params"]["connect_args"]
assert connect_args["scheme"] == "https"
assert "ssl_verify_cert" in connect_args
def test_timegrain_expressions(self):
"""
DB Eng Specs (druid): Test time grain expressions
"""
col = "__time"
sqla_col = column(col)
test_cases = {
"PT1S": f"FLOOR({col} TO SECOND)",
"PT5M": f"TIME_FLOOR({col}, 'PT5M')",
}
for grain, expected in test_cases.items():
actual = DruidEngineSpec.get_timestamp_expr(
col=sqla_col, pdf=None, time_grain=grain
)
self.assertEqual(str(actual), expected)
def test_timegrain_expressions(self):
"""
DB Eng Specs (druid): Test time grain expressions
"""
col = "__time"
sqla_col = column(col)
test_cases = {
"PT1S":
f"TIME_FLOOR(CAST({col} AS TIMESTAMP), 'PT1S')",
"PT5M":
f"TIME_FLOOR(CAST({col} AS TIMESTAMP), 'PT5M')",
"P1W/1970-01-03T00:00:00Z":
f"TIME_SHIFT(TIME_FLOOR(TIME_SHIFT(CAST({col} AS TIMESTAMP), 'P1D', 1), 'P1W'), 'P1D', 5)",
"1969-12-28T00:00:00Z/P1W":
f"TIME_SHIFT(TIME_FLOOR(TIME_SHIFT(CAST({col} AS TIMESTAMP), 'P1D', 1), 'P1W'), 'P1D', -1)",
}
for grain, expected in test_cases.items():
actual = DruidEngineSpec.get_timestamp_expr(col=sqla_col,
pdf=None,
time_grain=grain)
self.assertEqual(str(actual), expected)
def test_extras_without_ssl(self):
db = mock.Mock()
db.extra = default_db_extra
db.server_cert = None
extras = DruidEngineSpec.get_extra_params(db)
assert "connect_args" not in extras["engine_params"]