lit ☆
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Description:
Portable tool for LLVM- and Clang-style test suites
Type: Formula  |  Latest Version: 18.1.8@0  |  Tracked Since: Oct 15, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: testing llvm clang development c++
Install: brew install lit
About:
Lit is a portable command-line tool designed to run test suites for LLVM, Clang, and other related compiler projects. It serves as a test runner that discovers and executes test cases, checking their output against expected results. Its main value is providing a standardized way to manage and run complex test suites across different development environments.
Key Features:
  • Test discovery and execution
  • Flexible test parameterization and substitution
  • Integration with build systems like CMake and Make
  • Support for multiple test formats (e.g., 'RUN:' lines)
Use Cases:
  • Running regression tests for compiler toolchains
  • Validating code changes in large C++ projects
  • Automating test execution in CI/CD pipelines
Alternatives:
  • pytest – A general-purpose Python testing framework, whereas lit is specialized for compiler and toolchain testing.
  • gtest – A C++ unit testing framework; lit is a test runner that can execute gtest binaries but is not a framework itself.
Version History
Detected Version Rev Change Commit
Oct 15, 2025 11:47am 0 VERSION_BUMP 1f65a1fb
Oct 22, 2024 12:14am 0 VERSION_BUMP 5604e61d
Aug 24, 2024 5:31am 0 VERSION_BUMP dd9870b9
Nov 28, 2023 8:33pm 0 VERSION_BUMP c9dffc12
Oct 4, 2023 1:29am 0 VERSION_BUMP d7dd0789
Sep 17, 2023 4:19pm 0 VERSION_BUMP ab6ac664
May 26, 2023 11:30am 0 VERSION_BUMP e3a3b918
May 6, 2023 12:45pm 0 VERSION_BUMP 07801ea1
Apr 11, 2023 10:01am 0 VERSION_BUMP a7ff6ac4
Apr 11, 2023 9:04am 0 VERSION_BUMP 43c8f3ec
Mar 21, 2023 6:05am 0 VERSION_BUMP 7b5e3c65
Mar 21, 2023 6:05am 0 VERSION_BUMP feb38deb
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