Decision Workspace
smoothy vs speculoos vs spectral
Side-by-side comparison of Rust crates
58
smoothy
growingv0.10.0
Write smooth assertions in a fluent and human readable way
51
speculoos
growingv0.13.0
Fluent test assertions
48
spectral
growingv0.6.0
Fluent test assertions
Core Metrics
| smoothy | speculoos | spectral | |
|---|---|---|---|
| Health Score | 58 | 51 | 48 |
| Total Downloads | 24.6K | 404.9K | 710.1K |
| 30d Downloads | 74 | 17.8K | 12.8K |
| Dependents | 10 | 965 | 912 |
| Releases | 25 | 7 | 8 |
| Last Updated | 88d ago | 351d ago | 3395d ago |
| Age | 2y 4m | 4y 6m | 9y 6m |
Health Breakdown
smoothy
Maintenance
14
Quality
16
Community
8
Popularity
5
Documentation
15
speculoos
Maintenance
6
Quality
17
Community
11
Popularity
7
Documentation
10
spectral
Maintenance
6
Quality
16
Community
11
Popularity
7
Documentation
8
Technical Details
| smoothy | speculoos | spectral | |
|---|---|---|---|
| Version | 0.10.0 | 0.13.0 | 0.6.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | Apache-2.0 | Apache-2.0 |
| Dependencies | 7 | 2 | 1 |
| Crate Size | 33KB | 27KB | 22KB |
| Features | 3 | 2 | 1 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | — |
| MSRV | 1.81 | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •smoothy leads with a health score of 58/100, but none of the options score above 80.
- •spectral has the most downloads (710.1K), suggesting wider adoption.
- •speculoos is depended on by 965 crates — strongest ecosystem trust.
- •⚠ spectral has not been updated in over a year.