[issue22806] regrtest: add switch -c to run only modified tests

[STINNER Victor]

STINNER Victor added the comment:

I'm now closing this issue because Antoine, Serhiy and me dislike the idea.

> An alternate suggestion would be to allow filenames like 
> "Lib/test/test_foo.py" as arguments to regrtest.

This sounds like a better plan. Please open a new issue if you still need that.

FYI I refactoring regrtest.py into libregrtest, it might be easier to enhance 
it now.

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nosy: +haypo
resolution:  -> wont fix
status: open -> closed

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[issue22806] regrtest: add switch -c to run only modified tests

[STINNER Victor]

STINNER Victor added the comment:

I added "python -m test --list-tests". It's not perfect but it's better than 
nothing :-p

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[issue22806] regrtest: add switch -c to run only modified tests

[Roundup Robot]

Roundup Robot added the comment:

New changeset 1005573e6a74 by Victor Stinner in branch 'default':
Issue #22806: Add ``python -m test --list-tests`` command to list tests.
https://hg.python.org/cpython/rev/1005573e6a74

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[issue22806] regrtest: add switch -c to run only modified tests

[Ethan Furman]

Changes by Ethan Furman et...@stoneleaf.us:


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[issue22806] regrtest: add switch -c to run only modified tests

[Ethan Furman]

Changes by Ethan Furman et...@stoneleaf.us:


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[issue22806] regrtest: add switch -c to run only modified tests

[Georg Brandl]

New submission from Georg Brandl:

A quick way to select only tests that are modified in the checkout.

--
components: Tests
files: regrtest_changed.diff
keywords: patch
messages: 230748
nosy: georg.brandl, pitrou
priority: normal
severity: normal
status: open
title: regrtest: add switch -c to run only modified tests
type: enhancement
versions: Python 3.4, Python 3.5
Added file: http://bugs.python.org/file37138/regrtest_changed.diff

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[issue22806] regrtest: add switch -c to run only modified tests

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Unfortunately this doesn't work with tests for pickle, json or tkinter.

I'm afraid this feature would make false promise. Without careful check you can 
not be confident that all modified tests are selected. If you going to add this 
switch, it should emit a


*  *
*   LOUD WARNING   *
*  *


and enumerate all modified files containing 'test' in its path which are not 
recognized as valid test name.

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[issue22806] regrtest: add switch -c to run only modified tests

[Antoine Pitrou]

Antoine Pitrou added the comment:

I agree this is more dangerous than useful.
(even if you haven't modified a test it may still be impacted by some other 
change)

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[issue22806] regrtest: add switch -c to run only modified tests

[Georg Brandl]

Georg Brandl added the comment:

Well, this is not meant as a comprehensive run ALL impacted tests because 
that is impossible in general :)

An alternate suggestion would be to allow filenames like Lib/test/test_foo.py 
as arguments to regrtest. Then I could run without the switch using

.../regrtest.py `hg status -amn`

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[issue22806] regrtest: add switch -c to run only modified tests

[Ezio Melotti]

Changes by Ezio Melotti ezio.melo...@gmail.com:


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