class_docstr: Test that all type conversions are working.
class_docstr_tok: ["Test","that","all","type","conversions","are","working","."]
code: def testEmptyArray(self):
      s = self.execute("SELECT '{}'::text[] AS foo")
      self.failUnlessEqual(s, [])
      s = self.execute("SELECT 1 != ALL(%s)", ([],))
      self.failUnlessEqual(s, True)
      # but don't break the strings :)
      s = self.execute("SELECT '{}'::text AS foo")
      self.failUnlessEqual(s, "{}")
  
imports: import string
  import ctypes
  import decimal
  import datetime
  import platform
  from .None import testutils
  import unittest
  from .testutils import ConnectingTestCase, restore_types
  from .testutils import skip_if_crdb
  import psycopg2
  from psycopg2.extensions import AsIs, adapt, register_adapter
label_desc: Use image node_id 17 for calling the TypesBasicTests obj's underlying member method code with example usage: obj.testEmptyArray() without return types