Fixed #31692 -- Prevented unneeded .po file compilation.

Thanks Nick Pope and Simon Charette for the reviews.

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/i18n/test_compilation.py b/tests/i18n/test_compilation.py
index fbacaee221..791c1d4f15 100644
--- a/tests/i18n/test_compilation.py
+++ b/tests/i18n/test_compilation.py
@@ -49,6 +49,8 @@ class PoFileTests(MessageCompilationTests):
         # Put file in read-only mode.
         old_mode = mo_file_en.stat().st_mode
         mo_file_en.chmod(stat.S_IREAD)
+        # Ensure .po file is more recent than .mo file.
+        mo_file_en.with_suffix('.po').touch()
         try:
             with self.assertRaisesMessage(CommandError, 'compilemessages generated one or more errors.'):
                 call_command('compilemessages', locale=['en'], stderr=err_buffer, verbosity=0)
@@ -56,6 +58,14 @@ class PoFileTests(MessageCompilationTests):
         finally:
             mo_file_en.chmod(old_mode)
 
+    def test_no_compile_when_unneeded(self):
+        mo_file_en = Path(self.MO_FILE_EN)
+        mo_file_en.touch()
+        stdout = StringIO()
+        call_command('compilemessages', locale=['en'], stdout=stdout, verbosity=1)
+        msg = '%s” is already compiled and up to date.' % mo_file_en.with_suffix('.po')
+        self.assertIn(msg, stdout.getvalue())
+
 
 class PoFileContentsTests(MessageCompilationTests):
     # Ticket #11240