client-py/tests/test_dataframe.py

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from iotdb.Session import Session
from iotdb.IoTDBContainer import IoTDBContainer

from numpy.testing import assert_array_equal


def test_simple_query():
    with IoTDBContainer("iotdb:dev") as db:
        db: IoTDBContainer
        session = Session(db.get_container_host_ip(), db.get_exposed_port(6667))
        session.open(False)

        session.execute_non_query_statement("set storage group to root.device")
        # Write data
        session.insert_str_record("root.device", 123, "pressure", "15.0")

        # Read
        session_data_set = session.execute_query_statement("SELECT ** FROM root")
        df = session_data_set.todf()

        session.close()

    assert list(df.columns) == ["Time", "root.device.pressure"]
    assert_array_equal(df.values, [[123.0, 15.0]])


def test_non_time_query():
    with IoTDBContainer("iotdb:dev") as db:
        db: IoTDBContainer
        session = Session(db.get_container_host_ip(), db.get_exposed_port(6667))
        session.open(False)
        session.execute_non_query_statement("set storage group to root.device")
        # Write data
        session.insert_str_record("root.device", 123, "pressure", "15.0")

        # Read
        session_data_set = session.execute_query_statement("SHOW TIMESERIES")
        df = session_data_set.todf()

        session.close()

    assert list(df.columns) == [
        "timeseries",
        "alias",
        "storage group",
        "dataType",
        "encoding",
        "compression",
        "tags",
        "attributes",
    ]
    assert_array_equal(
        df.values,
        [[
                "root.device.pressure",
                None,
                "root.device",
                "FLOAT",
                "GORILLA",
                "SNAPPY",
                None,
                None,
            ]
        ],
    )