(Merge 3.2) Issue #12057: Add tests for ISO 2022 codecs

iso2022_jp, iso2022_jp_2 and iso2022_kr

diff --cc Misc/NEWS
index ea6fe789c1562283616fa29472ef4359cdcd8f9b,4ab11a517dc1aecd433c7171a8b3bac922717120..ff7ed66d018fe2a79a533f4bdd39d01c5adc8d1a
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -785,22 -489,6 +785,25 @@@ Extension Module
  Tests
  -----
  
++- Issue #12057: Add tests for ISO 2022 codecs (iso2022_jp, iso2022_jp_2,
++  iso2022_kr).
++
 +- Issue #12180: Fixed a few remaining errors in test_packaging when no
 +  threading.
 +
 +- Issue #12120, #12119: skip a test in packaging and distutils
 +  if sys.dont_write_bytecode is set to True.
 +
 +- Issue #12096: Fix a race condition in test_threading.test_waitfor(). Patch
 +  written by Charles-François Natali.
 +
 +- Issue #11614: import __hello__ prints "Hello World!". Patch written by
 +  Andreas Stührk.
 +
 +- Issue #5723: Improve json tests to be executed with and without accelerations.
 +
 +- Issue #12041: Make test_wait3 more robust.
 +
  - Issue #11873: Change regex in test_compileall to fix occasional failures when
    when the randomly generated temporary path happened to match the regex.