Description

terryjreedy

opened on Aug 13, 2026

Issue body actions

The bug scan found 4 broad issues in idle_test/*. Details in full reports or in numbered links below.

71 CONSIDER idle_test/mock_idle.py:48 The shared test stubs cannot express the conditions the guards under test exist for
72 CONSIDER idle_test/test_searchengine.py:279 A test class freezes text.index to a constant, leaving seven mutations of live code undetected

Fixed:
26 CONSIDER idle_test/test_autocomplete.py:241 Five tests in the suite cannot fail
73 CONSIDER idle_test/test_undo.py Four test files exit 0 even when their tests fail

Linked PRs

• gh-155648: In IDLE tests, call unittest.main without exit arg #156249
• [3.15] gh-155648: In IDLE tests, call unittest.main without exit arg (GH-156249) #156251
• [3.14] gh-155648: In IDLE tests, call unittest.main without exit arg (GH-156249) #156252
• [3.13] gh-155648: In IDLE tests, call unittest.main without exit arg (GH-156249) #156253
• gh-155648: Fix IDLE tests that cannot fail #156257
• gh-155648: Write the empty and placeholder IDLE tests #156260
• [3.15] gh-155648: Fix IDLE tests that cannot fail (GH-156257) #156315
• [3.14] gh-155648: Fix IDLE tests that cannot fail (GH-156257) #156316
• [3.13] gh-155648: Fix IDLE tests that cannot fail (GH-156257) #156317
• [3.15] gh-155648: Write the empty and placeholder IDLE tests (GH-156260) #157204
• [3.14] gh-155648: Write the empty and placeholder IDLE tests (GH-156260) #157205
• [3.13] gh-155648: Write the empty and placeholder IDLE tests (GH-156260) #157206

Activity

1. terryjreedy

   self-assigned this

   on Aug 13, 2026
2. terryjreedy

   added this to IDLE Issueson Aug 13, 2026
3. terryjreedy

   added

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   topic-IDLE

   on Aug 13, 2026
4. terryjreedy

   added a parent issue on Aug 13, 2026

   • Umbrella issue: idlelib analysis with code-review-toolkit #154760
5. StanFromIreland

   added

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   on Aug 13, 2026
6. terryjreedy

   added 6 commits that reference this issue on Aug 23, 2026

   gh-155648: In IDLE tests, call unittest.main without exit arg (#156249)

   c20318b

   [3.13] gh-155648: In IDLE tests, call unittest.main without exit arg (G…

   7edd8bd

   [3.14] gh-155648: In IDLE tests, call unittest.main without exit arg (G…

   63bec1a

   gh-155648: Fix IDLE tests that cannot fail (#156257)

   ee1da7e

   [3.13] gh-155648: Fix IDLE tests that cannot fail (GH-156257) (#156317)

   708b457

   [3.14] gh-155648: Fix IDLE tests that cannot fail (GH-156257) (#156316)

   7cc0932
7. terryjreedy

   changed the title [-]IDLE - fix devdanzin test issues[/-] [+]IDLE: Fix devdanzin test issues[/+] on Aug 25, 2026
8. hugovk

   added a commit that references this issue on Aug 27, 2026

   [3.15] gh-155648: Fix IDLE tests that cannot fail (GH-156257) (#156315)

   96ae61d
9. clin1234

   added a commit that references this issue on Aug 27, 2026

   pythongh-155648: Fix IDLE tests that cannot fail (python#156257)

   ea0a47c
10. terryjreedy

    added 3 commits that reference this issue on Sep 9, 2026

    gh-155648: Write the empty and placeholder IDLE tests (#156260)

    f8f8c30

    [3.14] gh-155648: Write the empty and placeholder IDLE tests (GH-156260…

    a6d25db

    [3.13] gh-155648: Write the empty and placeholder IDLE tests (GH-156260…

    9c193bd
11. hugovk

    added a commit that references this issue on Sep 9, 2026

    [3.15] gh-155648: Write the empty and placeholder IDLE tests (GH-156260…

    cd85453
12. maurycy

    added a commit that references this issue on Sep 10, 2026

    Merge branch 'main' into tachyon-native-callable

    e028ff5
13. clin1234

    added a commit that references this issue on Sep 12, 2026

    pythongh-155648: Write the empty and placeholder IDLE tests (python#1…

    34761c7
14. johnslavik

    added a commit that references this issue on Sep 14, 2026

    pythongh-155648: Write the empty and placeholder IDLE tests (python#1…

    113169c
15. terryjreedy

    added a commit that references this issue on Oct 9, 2026

    [3.15] gh-155648: In IDLE tests, call unittest.main without exit arg (G…

    433f016

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