class_docstr: Some tests on the database manager class that don't get exercised through the API
class_docstr_tok: ["Some","tests","on","the","database","manager","class","that","do","n't","get","exercised","through","the","API"]
code: def test_repr(self):
      assert repr(self._db) == "<DFT ':memory:'>"
  
imports: import os
  import sqlite3
  from io import BytesIO
  from os.path import dirname
  from os.path import join
  from ..testing import suppress_warnings
  import unittest
  import pytest
  from ..None import nifti1
  from ..optpkg import optional_package
label_desc: Use image node_id 2 for calling the Test_DBclass obj's underlying member method code with example usage: obj.test_repr() without return types