git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: [PATCH v2 16/19] parallel-checkout: add tests for basic operations

From
Jonathan Nieder <jrnieder@gmail.com>
Date
Oct 20, 2020, 04:16 UTC
Message-ID
<20201020041625.GB15198@google.com>
In-Reply-To
<CAHd-oW7=Bd+StX_t+6iuaas0SWzEdbQCj5aWgasoOYT2kfVw7g@mail.gmail.com>
Matheus Tavares Bernardino wrote:
> On Mon, Oct 19, 2020 at 10:36 PM Jonathan Nieder <jrnieder@gmail.com> wrote:
Show 10 quoted lines
>> Can we use an artificial repo instead of git.git?  Using git.git as
>> test data seems like a recipe for hard-to-reproduce test failures.
>
> I think we could maybe drop these tests. There are already some
> similar tests below these, which use an artificial repository. The
> goal of using git.git in this section was to test parallel-checkout
> with a real-world repo, and hopefully catch errors that we might not
> see with small artificial ones.  But you have a very valid concern, as
> well. Hmm, I'm not sure what is the best solution to this case. What
> do you think?

I see. I suppose my preference would be to have a real-world example in t/perf/ (see t/perf/README for how it allows an arbitrary repo to be passed in) instead of in the regression tests. In the regression testsuite I'd focus more on particular behaviors I want to test (e.g., a file being replaced by a directory, that kind of thing).

Behaviors exercised by git.git are in some sense the *least* important thing to test here, since developers in the Git project know to advocate for those and exercise them day-to-day. Where the testsuite shines is in being able to advocate for use cases that are exercised by other populations --- a testsuite failure can be a reminder to not forget about the features other people need that are not part of our own daily lives.

Thanks, Jonathan

Previous: Matheus Tavares BernardinoNext: Junio C Hamano
Message 56 of 61 in “[RFC] Parallel checkout”
  1. 00/21 [RFC] Parallel checkoutMatheus Tavares, Aug 10, 2020
  2. 01/21 convert: make convert_attrs() and convert structs publicMatheus Tavares, Aug 10, 2020
  3. 02/21 convert: add [async_]convert_to_working_tree_ca() variantsMatheus Tavares, Aug 10, 2020
  4. 03/21 convert: add get_stream_filter_ca() variantMatheus Tavares, Aug 10, 2020
  5. 04/21 convert: add conv_attrs classificationMatheus Tavares, Aug 10, 2020
  6. 05/21 entry: extract a header file for entry.c functionsMatheus Tavares, Aug 10, 2020
  7. 06/21 entry: make fstat_output() and read_blob_entry() publicMatheus Tavares, Aug 10, 2020
  8. 07/21 entry: extract cache_entry update from write_entry()Matheus Tavares, Aug 10, 2020
  9. 08/21 entry: move conv_attrs lookup up to checkout_entry()Matheus Tavares, Aug 10, 2020
  10. 09/21 entry: add checkout_entry_ca() which takes preloaded conv_attrsMatheus Tavares, Aug 10, 2020
  11. 10/21 unpack-trees: add basic support for parallel checkoutMatheus Tavares, Aug 10, 2020
  12. 11/21 parallel-checkout: make it truly parallelMatheus Tavares, Aug 10, 2020
  13. Jeff HostetlerAug 19, 2020
  14. Matheus Tavares BernardinoAug 20, 2020
  15. Jeff HostetlerAug 20, 2020
  16. 12/21 parallel-checkout: add configuration optionsMatheus Tavares, Aug 10, 2020
  17. 13/21 parallel-checkout: support progress displayingMatheus Tavares, Aug 10, 2020
  18. 14/21 make_transient_cache_entry(): optionally alloc from mem_poolMatheus Tavares, Aug 10, 2020
  19. 15/21 builtin/checkout.c: complete parallel checkout supportMatheus Tavares, Aug 10, 2020
  20. 16/21 checkout-index: add parallel checkout supportMatheus Tavares, Aug 10, 2020
  21. 17/21 parallel-checkout: avoid stat() calls in workersMatheus Tavares, Aug 10, 2020
  22. 18/21 entry: use is_dir_sep() when checking leading dirsMatheus Tavares, Aug 10, 2020
  23. 19/21 symlinks: make has_dirs_only_path() track FL_NOENTMatheus Tavares, Aug 10, 2020
  24. 20/21 parallel-checkout: create leading dirs in workersMatheus Tavares, Aug 10, 2020
  25. 21/21 parallel-checkout: skip checking the working tree on cloneMatheus Tavares, Aug 10, 2020
  26. Jeff HostetlerAug 12, 2020
  27. 00/19 Parallel Checkout (part I)Matheus Tavares, Sep 22, 2020
  28. 01/19 convert: make convert_attrs() and convert structs publicMatheus Tavares, Sep 22, 2020
  29. 03/19 convert: add get_stream_filter_ca() variantMatheus Tavares, Sep 22, 2020
  30. 02/19 convert: add [async_]convert_to_working_tree_ca() variantsMatheus Tavares, Sep 22, 2020
  31. 04/19 convert: add conv_attrs classificationMatheus Tavares, Sep 22, 2020
  32. 05/19 entry: extract a header file for entry.c functionsMatheus Tavares, Sep 22, 2020
  33. 06/19 entry: make fstat_output() and read_blob_entry() publicMatheus Tavares, Sep 22, 2020
  34. 07/19 entry: extract cache_entry update from write_entry()Matheus Tavares, Sep 22, 2020
  35. 08/19 entry: move conv_attrs lookup up to checkout_entry()Matheus Tavares, Sep 22, 2020
  36. Jeff HostetlerOct 1, 2020
  37. Jeff HostetlerOct 1, 2020
  38. 09/19 entry: add checkout_entry_ca() which takes preloaded conv_attrsMatheus Tavares, Sep 22, 2020
  39. 10/19 unpack-trees: add basic support for parallel checkoutMatheus Tavares, Sep 22, 2020
  40. parallel-checkout: drop unused checkout state parameterJeff King, Oct 5, 2020
  41. Matheus Tavares BernardinoOct 5, 2020
  42. Jeff KingOct 5, 2020
  43. 11/19 parallel-checkout: make it truly parallelMatheus Tavares, Sep 22, 2020
  44. Martin ÅgrenSep 29, 2020
  45. Matheus Tavares BernardinoSep 30, 2020
  46. 12/19 parallel-checkout: support progress displayingMatheus Tavares, Sep 22, 2020
  47. 13/19 make_transient_cache_entry(): optionally alloc from mem_poolMatheus Tavares, Sep 22, 2020
  48. 14/19 builtin/checkout.c: complete parallel checkout supportMatheus Tavares, Sep 22, 2020
  49. 15/19 checkout-index: add parallel checkout supportMatheus Tavares, Sep 22, 2020
  50. 16/19 parallel-checkout: add tests for basic operationsMatheus Tavares, Sep 22, 2020
  51. Jonathan NiederOct 20, 2020
  52. Taylor BlauOct 20, 2020
  53. Matheus Tavares BernardinoOct 20, 2020
  54. Junio C HamanoOct 20, 2020
  55. Matheus Tavares BernardinoOct 20, 2020
  56. Jonathan NiederOct 20, 2020
  57. Junio C HamanoOct 20, 2020
  58. 17/19 parallel-checkout: add tests related to clone collisionsMatheus Tavares, Sep 22, 2020
  59. 18/19 parallel-checkout: add tests related to .gitattributesMatheus Tavares, Sep 22, 2020
  60. 19/19 ci: run test round with parallel-checkout enabledMatheus Tavares, Sep 22, 2020
  61. Jeff HostetlerOct 1, 2020

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.