Source: https://seerepo.com/best-tested/axum
Markdown source: https://seerepo.com/best-tested/axum.md
Description: 13 public axum repos that SeeRepo read have 10 test files or more. tinyhumansai/openhuman comes first: a test imports 75% of its code files.

# The best-tested open source axum repos

13 public axum repos that SeeRepo read have 10 test files or more. tinyhumansai/openhuman comes first: a test imports 75% of its code files.

How they're ranked: by the share of their code files that some test imports directly, then by stars. That says which files a test reaches, not which lines run. A repo enters with 10 test files or more and 20 code files or more.

Updated November 1, 2026.

## The repos, ranked

1. [tinyhumansai/openhuman](https://seerepo.com/r/tinyhumansai/openhuman): 75% of its code files have a test that imports them · 2,956 test files · Rust · 42,441 stars — The fastest, cheapest, most efficient open-source agent harness. Run more than 500 agents on a $10 VPS.
2. [headroomlabs-ai/headroom](https://seerepo.com/r/headroomlabs-ai/headroom): 68.2% of its code files have a test that imports them · 1,190 test files · Python · 78,261 stars — Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.
3. [sgl-project/sglang](https://seerepo.com/r/sgl-project/sglang): 57.8% of its code files have a test that imports them · 4,053 test files · Python · 38,327 stars — SGLang is a high-performance serving framework for large language models and multimodal models.
4. [codewhale-hq/Codewhale](https://seerepo.com/r/codewhale-hq/Codewhale): 41.5% of its code files have a test that imports them · 555 test files · Rust · 41,156 stars — Open-source agent for the terminal written in Rust. Use any provider or model. Issues & PRs always welcome
5. [farion1231/cc-switch](https://seerepo.com/r/farion1231/cc-switch): 36.7% of its code files have a test that imports them · 307 test files · Rust · 149,984 stars — A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Grok Build & Hermes Agent. Only official website: ccswitch.io
6. [FuelLabs/fuel-core](https://seerepo.com/r/FuelLabs/fuel-core): 33% of its code files have a test that imports them · 166 test files · Rust · 56,774 stars — Rust full node implementation of the Fuel v2 protocol.
7. [aaif-goose/goose](https://seerepo.com/r/aaif-goose/goose): 21.9% of its code files have a test that imports them · 227 test files · Rust · 55,949 stars — an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM
8. [BerriAI/litellm](https://seerepo.com/r/BerriAI/litellm): 21.7% of its code files have a test that imports them · 6,741 test files · Python · 62,405 stars — The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM]
9. [zed-industries/zed](https://seerepo.com/r/zed-industries/zed): 18% of its code files have a test that imports them · 139 test files · Rust · 92,432 stars — Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
10. [hoppscotch/hoppscotch](https://seerepo.com/r/hoppscotch/hoppscotch): 16.7% of its code files have a test that imports them · 254 test files · TypeScript · 80,718 stars — Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
11. [AlexsJones/llmfit](https://seerepo.com/r/AlexsJones/llmfit): 10.5% of its code files have a test that imports them · 16 test files · Rust · 38,523 stars — Hundreds of models & providers. One command to find what runs on your hardware.
12. [unionlabs/union](https://seerepo.com/r/unionlabs/union): 10.4% of its code files have a test that imports them · 120 test files · Rust · 73,734 stars — The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.
13. [spacedriveapp/spacedrive](https://seerepo.com/r/spacedriveapp/spacedrive): 5.3% of its code files have a test that imports them · 122 test files · Rust · 39,351 stars — Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.

## Frequently asked questions

### Which axum repo has the most test files?

BerriAI/litellm, with 6,741 test files.

The proof: [BerriAI/litellm's card](https://seerepo.com/r/BerriAI/litellm)

### What share of their code files do axum repos test?

The median of the 13 is 21.9%: half are above it and half below.

### What languages are the best-tested axum repos written in?

Rust (9), Python (3), and TypeScript (1).

### How many of the best-tested axum repos have commits signed by AI?

12 of the 13; the most, codewhale-hq/Codewhale, with 41.3% of its commits.

The proof: [the commits each tool signed in codewhale-hq/Codewhale](https://seerepo.com/r/codewhale-hq/Codewhale/ai)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.