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tests: golden files + bless mode for the suite runner's assertion blocks

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5/5
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一周以上
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45/100
Issue 类型
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描述清晰度
基本清楚
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活跃
技术栈
shell

调研方向

Start by reading tests/run_all_tests.sh, focusing on its assertion-block sections and how the suite runner selects and reports them. Run the suite on main and record the current wc -l value before identifying the five largest sections. Done means those sections use checked-in golden files, --bless

rewrites the expected-output files, unchanged main passes, and a planted output change produces a readable diff that bless resolves.

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描述

area:gates kind:decision

Split from #1275 (plan step 4; see the DoD check in #1275). #1275's DoD bounds tools/, not the suite runner, so this is its own work.

Problem. Much of tests/run_all_tests.sh (7,606 lines) is hand-written grep -qE / count assertions. Each one is code that can be wrong, and each new case adds more assertion code.

Prior art. rustc compiletest compares against checked-in .stdout/.stderr files, and --bless regenerates them for review as an ordinary diff. LLVM uses RUN: + FileCheck. The checker is diff, so it needs no self-test.

Done when:

  • The runner has a bless mode (--bless <section>) that rewrites a section's expected-output files.
  • The five largest assertion-block sections are converted to golden files and pass unchanged on main.
  • A deliberate output change in one converted section fails with a readable diff, and --bless fixes it (planted once, recorded in the PR).
  • wc -l tests/run_all_tests.sh before and after is recorded here.
主要语言
C
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