class_docstr: Test that the configuration class works as expected
class_docstr_tok: ["Test","that","the","configuration","class","works","as","expected"]
docstr: Test string value of the Configuration object.
docstr_tok: ["Test","string","value","of","the","Configuration","object","."]
code: def test_str(self):
      """Test string value of the Configuration object."""
      config = Configuration("noconfig")
  
      assert config.__str__() == ""
  
imports: import os
  import pytest
  import toml
  import pennylane
  from pennylane import Configuration
label_desc: Use image node_id 4 for calling the TestProperties obj's underlying member method code with example usage: obj.test_str() without return types