google/benchmark

[FR] support flag --benchmark_list_tests work with --benchmark-format=json

Open

#1,642 opened on Aug 8, 2023

View on GitHub
 (6 comments) (1 reaction) (0 assignees)C++ (7,968 stars) (1,539 forks)batch import
enhancementgood first issuehelp wanted

Description

Is your feature request related to a problem? Please describe. For automation to collection the benchmark list easily, it is better to support use --benchmark_list_tests together with --benchmark-format=json.

Describe the solution you'd like to output the benchmark list in json format.

Describe alternatives you've considered

Additional context Add any other context or screenshots about the feature request here.

Contributor guide

Tech stack
cpp
Domain
clitooling
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
C++benchmark libraryJSON format
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Look into the source files for command line option handling (likely src/benchmark main.cc or include/benchmark/benchmark.h). Investigate how the existing benchmark list tests flag outputs the list (currently plain text). Study the JSON output implementation used by benchmark format=json. Modify the list tests path to produce JSON output when both flags are set. Ensure the JSON format matches the existing output structure. No linked PRs or comments indicate a specific approach.