gh-154279: Skip readline completion tests that fail on DragonFly and illumos (GH-154280)

https://github.com/python/cpython/commit/e81f19052ae1dad6bfaa240f3e56c2b34129a8fd
commit: e81f19052ae1dad6bfaa240f3e56c2b34129a8fd
branch: main
author: Serhiy Storchaka <[email protected]>
committer: serhiy-storchaka <[email protected]>
date: 2026-07-20T18:32:24Z
summary:

gh-154279: Skip readline completion tests that fail on DragonFly and illumos (GH-154280)

They are already skipped on FreeBSD, where a backspace does not remove
the auto-indentation.  The same happens on DragonFly and illumos.

Co-authored-by: Claude Opus 4.8 (1M context) <[email protected]>

files:
M Lib/test/test_pdb.py
M Lib/test/test_sqlite3/test_cli.py

diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py
index 0cf5dd2e4c10042..e7b66031a86a6ca 100644
--- a/Lib/test/test_pdb.py
+++ b/Lib/test/test_pdb.py
@@ -5167,8 +5167,9 @@ def f():
 
         self.assertIn('I love Python', output)
 
-    @unittest.skipIf(sys.platform.startswith('freebsd'),
-                     '\\x08 is not interpreted as backspace on FreeBSD')
+    @unittest.skipIf(sys.platform.startswith(('freebsd', 'dragonfly', 'sunos')),
+                     '\\x08 does not remove the auto-indentation with '
+                     'GNU readline on this platform')
     def test_multiline_auto_indent(self):
         script = textwrap.dedent("""
             import pdb; pdb.Pdb().set_trace()
@@ -5207,8 +5208,9 @@ def test_multiline_completion(self):
 
         self.assertIn('42', output)
 
-    @unittest.skipIf(sys.platform.startswith('freebsd'),
-                     '\\x08 is not interpreted as backspace on FreeBSD')
+    @unittest.skipIf(sys.platform.startswith(('freebsd', 'dragonfly', 'sunos')),
+                     '\\x08 does not remove the auto-indentation with '
+                     'GNU readline on this platform')
     def test_multiline_indent_completion(self):
         script = textwrap.dedent("""
             import pdb; pdb.Pdb().set_trace()
diff --git a/Lib/test/test_sqlite3/test_cli.py b/Lib/test/test_sqlite3/test_cli.py
index 1fc0236780fa8ba..29819cc19d343bc 100644
--- a/Lib/test/test_sqlite3/test_cli.py
+++ b/Lib/test/test_sqlite3/test_cli.py
@@ -378,10 +378,10 @@ def test_complete_schemata(self):
         self.assertIn("main", candidates)
         self.assertIn("temp", candidates)
 
-    @unittest.skipIf(sys.platform.startswith("freebsd"),
+    @unittest.skipIf(sys.platform.startswith(("freebsd", "dragonfly", "sunos")),
                     "Two actual tabs are inserted when there are no matching"
                     " completions in the pseudo-terminal opened by run_pty()"
-                    " on FreeBSD")
+                    " on this platform")
     def test_complete_no_match(self):
         input_ = b"xyzzy\t\t\b\b\b\b\b\b\b.quit\n"
         # Set NO_COLOR to disable coloring for self.PS1.

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