def test_upgrade(tmpdir):
db_file = tmpdir.join('db.json')
db_file.write(v1_0)
# Run upgrade
assert migrate(str(db_file)) is True
db = TinyDB(str(db_file))
assert db.count(where('key') == 'value') == 1
def test_no_upgrade_needed(tmpdir):
db_file = tmpdir.join('db.json')
with TinyDB(str(db_file)) as db:
db.insert({'val': 1})
assert migrate(str(db_file)) is False