def empty_temp_db():
# create a temp database for testing
with tempfile.TemporaryDirectory() as tmpdirname:
qc.config["core"]["db_location"] = os.path.join(tmpdirname, 'temp.db')
qc.config["core"]["db_debug"] = False
# this is somewhat annoying but these module scope variables
# are initialized at import time so they need to be overwritten
qc.dataset.experiment_container.DB = qc.config["core"]["db_location"]
qc.dataset.data_set.DB = qc.config["core"]["db_location"]
qc.dataset.experiment_container.debug_db = qc.config["core"]["db_debug"]
_c = mut.connect(qc.config["core"]["db_location"],
qc.config["core"]["db_debug"])
mut.init_db(_c)
_c.close()
yield
def generate_empty_DB_file():
"""
Generate the bare minimal DB file with no runs
"""
import qcodes.dataset.sqlite_base as sqlite_base
v0fixturepath = os.path.join(utils.fixturepath, 'version0')
os.makedirs(v0fixturepath, exist_ok=True)
path = os.path.join(v0fixturepath, 'empty.db')
if os.path.exists(path):
os.remove(path)
conn = sqlite_base.connect(path)
sqlite_base.init_db(conn)
