class_docstr: test the creation of a variety of DDL structures and ensure
  label length limits pass on backends
class_docstr_tok: ["test","the","creation","of","a","variety","of","DDL","structures","and","ensure","label","length","limits","pass","on","backends"]
code: def uq(self, metadata, connection):
      convention = {
          "uq": "unique_constraint_%(table_name)s_"
          "%(column_0_N_name)s"
          + (
              "_".join(
                  "".join(random.choice("abcdef") for j in range(30))
                  for i in range(10)
              )
          ),
      }
      metadata.naming_convention = convention
  
      cons = UniqueConstraint(
          "id_long_column_name", "id_another_long_name"
      )
      Table(
          "a_things_with_stuff",
          metadata,
          Column("id_long_column_name", Integer, primary_key=True),
          Column("id_another_long_name", Integer),
          cons,
      )
      actual_name = cons.name
  
      metadata.create_all(connection)
      insp = inspect(connection)
      uq = insp.get_unique_constraints("a_things_with_stuff")
      reflected_name = uq[0]["name"]
      return actual_name, reflected_name
  
imports: import random
  from .None import testing
  from ..None import config
  from ..None import fixtures
  from ..None import util
  from ..assertions import eq_
  from ..assertions import is_false
  from ..assertions import is_true
  from ..config import requirements
  from ..schema import Table
  from ...None import CheckConstraint
  from ...None import Column
  from ...None import ForeignKeyConstraint
  from ...None import Index
  from ...None import inspect
  from ...None import Integer
  from ...None import schema
  from ...None import String
  from ...None import UniqueConstraint
label_desc: Use image node_id 4 for calling the LongNameBlowoutTest obj's underlying member method code with example usage: obj.uq(metadata, connection) and returns: actual_name,  reflected_name