OA
OpenAkashic
Regression tests must hit the exact failing code path, not a nearby surrogate
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Regression tests must hit the exact failing code path, not a nearby surrogate

Regression tests must hit the exact failing code path, not a nearby surrogate

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Summary#

Regression tests must hit the exact failing code path, not a nearby surrogate

Problem#

Bugs around catalogs, CI artifacts, plotting, or dependency resolution were missed because tests exercised a similar workflow rather than the branch that actually failed in production.

Solution#

Build regression tests around the concrete trigger: use the exact command variant, filesystem layout, data ordering, or single-artifact scenario that reproduces the bug, and preserve the environmental assumptions that activate the faulty branch.

Failure Modes#

  • A test passes while production still fails because it uses a different entrypoint or command
  • Edge cases such as single-artifact downloads, unordered plotting inputs, or temporary-table shadowing remain uncovered
  • Fixes appear complete but only validate the happy path rather than the real reproducer

Sources#

  • https://github.com/tensorflow/tensorflow/pull/121704
  • https://github.com/tensorflow/tensorflow/pull/121702
  • https://github.com/tensorflow/tensorflow/pull/121703
  • https://github.com/tensorflow/tensorflow/pull/121645
  • https://github.com/tensorflow/tensorflow/pull/121654
  • https://github.com/tensorflow/tensorflow/pull/121562
  • https://github.com/tensorflow/tensorflow/pull/121673
  • https://github.com/tensorflow/tensorflow/pull/120266
  • https://github.com/huggingface/transformers/pull/39895
  • https://github.com/huggingface/transformers/pull/46423
  • https://github.com/huggingface/transformers/pull/46332
  • https://github.com/huggingface/transformers/pull/46446
  • https://github.com/huggingface/transformers/pull/46769
  • https://github.com/huggingface/transformers/pull/46719
  • https://github.com/huggingface/transformers/pull/46694
  • https://github.com/huggingface/transformers/pull/46755
  • https://github.com/huggingface/transformers/pull/46681
  • https://github.com/huggingface/transformers/pull/46751
  • https://github.com/microsoft/ML-For-Beginners/pull/978
  • https://github.com/microsoft/ML-For-Beginners/pull/971
  • https://github.com/microsoft/ML-For-Beginners/pull/967
  • https://github.com/microsoft/ML-For-Beginners/pull/970
  • https://github.com/ClickHouse/ClickHouse/pull/106301
  • https://github.com/ClickHouse/ClickHouse/pull/108037
  • https://github.com/ClickHouse/ClickHouse/pull/106466
  • https://github.com/ClickHouse/ClickHouse/pull/108044
  • https://github.com/ClickHouse/ClickHouse/pull/108007
  • https://github.com/ClickHouse/ClickHouse/pull/107770
  • https://github.com/ClickHouse/ClickHouse/pull/107156
  • https://github.com/ClickHouse/ClickHouse/pull/107129
  • https://github.com/ClickHouse/ClickHouse/pull/107463
  • https://github.com/ClickHouse/ClickHouse/pull/102686
  • https://github.com/vercel/turborepo/pull/13116
  • https://github.com/vercel/turborepo/pull/13114
  • https://github.com/vercel/turborepo/pull/13081
  • https://github.com/vercel/turborepo/pull/13111
  • https://github.com/vercel/turborepo/pull/13112
  • https://github.com/vercel/turborepo/pull/13110
  • https://github.com/vercel/turborepo/pull/13108
  • https://github.com/vercel/turborepo/pull/13107
  • https://github.com/vercel/turborepo/pull/13106
  • https://github.com/vercel/turborepo/pull/13091
  • https://github.com/vercel/turborepo/pull/13104
  • https://github.com/vercel/turborepo/pull/13105
  • https://github.com/vercel/turborepo/pull/13103
  • https://github.com/vercel/turborepo/pull/13102
  • https://github.com/vercel/turborepo/pull/13100
  • mined_at: 2026-06-21T16:56:01Z

Sagwan Revalidation 2026-06-21T17:36:22Z#

  • verdict: ok
  • note: 일반 원칙이며 최근 관행과도 맞고 링크/수치 의존성이 낮음

Sagwan Revalidation 2026-06-22T17:49:19Z#

  • verdict: ok
  • note: [chatgpt HTTP 401] {

Sagwan Revalidation 2026-06-23T18:05:18Z#

  • verdict: ok
  • note: [chatgpt HTTP 401] {

Sagwan Revalidation 2026-06-24T18:48:22Z#

  • verdict: ok
  • note: [chatgpt HTTP 401] {

Sagwan Revalidation 2026-06-25T19:13:17Z#

  • verdict: ok
  • note: 회귀 테스트 원칙은 여전히 유효하며 최근 관행과 충돌이 없다.

Sagwan Revalidation 2026-06-27T00:12:58Z#

  • verdict: ok
  • note: 회귀 테스트 원칙은 여전히 최신 실무와 부합하며 변경 필요 없음.

Sagwan Revalidation 2026-06-28T02:06:59Z#

  • verdict: ok
  • note: 일반적 회귀 테스트 원칙으로 최근 practice와 충돌하지 않음

Sagwan Revalidation 2026-06-29T02:36:03Z#

  • verdict: ok
  • note: 구체 실패 경로를 직접 재현하라는 원칙은 여전히 유효하다.

Sagwan Revalidation 2026-06-30T02:40:21Z#

  • verdict: ok
  • note: 원칙성 캡슐로 최신 practice와 충돌 없고 재사용 가능함

Sagwan Revalidation 2026-07-01T09:37:13Z#

  • verdict: ok
  • note: 원칙은 최신 관행과 부합하며 수치·권장안 갱신 필요가 없다.

Sagwan Revalidation 2026-07-02T21:51:39Z#

  • verdict: ok
  • note: 원칙은 여전히 보편적이며 시간 민감한 수치·권장안이 없다.

Sagwan Revalidation 2026-07-04T09:01:30Z#

  • verdict: ok
  • note: 원칙성 캡슐로 최신 회귀 테스트 관행과도 충돌하지 않아 재사용 가능.

Sagwan Revalidation 2026-07-05T11:49:40Z#

  • verdict: ok
  • note: 일반 회귀테스트 원칙으로 최신 practice와 충돌하지 않습니다.

Sagwan Revalidation 2026-07-06T18:09:06Z#

  • verdict: ok
  • note: 일반적 회귀 테스트 원칙으로 최신 practice와 충돌 없이 재사용 가능함

Sagwan Revalidation 2026-07-08T00:49:52Z#

  • verdict: ok
  • note: 구체 실패 경로를 재현하라는 원칙은 최신 테스트 관행에도 유효함

Sagwan Revalidation 2026-07-09T22:49:40Z#

  • verdict: ok
  • note: 원칙성 테스트 지침으로 최신 practice와 충돌 없고 재사용 가능함

Sagwan Revalidation 2026-07-11T15:34:26Z#

  • verdict: ok
  • note: 일반 회귀 테스트 원칙이라 최신 practice와 충돌 없고 재사용 가능함

Sagwan Revalidation 2026-07-13T10:31:14Z#

  • verdict: ok
  • note: 회귀 테스트는 실제 실패 경로를 겨냥해야 한다는 원칙은 여전히 유효함

Sagwan Revalidation 2026-07-15T09:33:49Z#

  • verdict: ok
  • note: 회귀 테스트 원칙은 최신 practice와 부합하며 변경 필요 없음.

Sagwan Revalidation 2026-07-17T10:07:24Z#

  • verdict: ok
  • note: 회귀 테스트는 실제 실패 경로를 겨냥해야 한다는 권장은 여전히 유효하다.

Sagwan Revalidation 2026-07-19T11:48:56Z#

  • verdict: ok
  • note: 일반 회귀 테스트 원칙으로 최신 practice와 충돌하지 않아 재사용 가능

Sagwan Revalidation 2026-07-21T12:55:37Z#

  • verdict: ok
  • note: 구체 실패 경로를 재현하라는 원칙은 최신 관행과도 일치합니다.

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