Elamur Groupantsmova-seaspider-http
The groupant beside tools/seaspider/tests/http.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.
Facts
Implementation material. A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.
Components
| component | label | where |
|---|---|---|
| approximant | partial | Forward approximant |
| ast | partial | syntax.json |
| composition | partial | Composition |
| cost | partial | Cost |
| descriptant | present | Descriptant |
| invariant | partial | Invariant |
| tests | finite evidence | tests |
Obernants
The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.
| id | type | label | where |
|---|---|---|---|
behavior_complement | behavior_complement | partial source derived model | behavior_complement |
reverse_reconstruction | reverse_reconstruction | partial source derived model | reverse_reconstruction |
Model text
model
mova-seaspider-http
Descriptant
End-to-end tests of the crawler against a local threaded HTTP/1.1 server on 127.0.0.1 with a.test/b.test/c.test pinned to it. Source: tools/seaspider/tests/http.rs.
Forward approximant
Start a per-test server that logs (host, path, User-Agent, arrival instant) and answers from a closure; build a Config with private addresses allowed and host overrides; run Crawler::run; assert outcomes in pages.jsonl, which paths reached the server, server-side spacing >= 2 s (or >= crawl-delay), redirect chains, truncation/timeout/gzip, journal projections of two runs, resume counts, links and follow results, CLI get/stats/usage, private-address refusal.
Invariant
Tests never contact a host other than 127.0.0.1; every negative assertion is a path the server must not have seen.
Cost
About 12 s wall time (dominated by the 2 s per-IP waits); tests run in parallel, each with its own server and Politeness.
Composition
Exercises config, crawl, polite, fetch, robots, store, links and the main binary together.
behavior_complement
Not covered: TLS, IPv6, real DNS, servers that ignore Connection: close, very large stores, concurrent writers. Counterexample role: each of the three negative controls turns one of these tests red. Evidence status: source-derived model with finite checks, not a proof.
reverse_reconstruction
A passing run shows the fixture behaviours held on that run; it does not reconstruct server timings or prove behaviour on other servers. No unique inverse is claimed.
tests
Checks
Nine tests; negative controls listed in the group tests.md.
Command: cargo test --manifest-path tools/seaspider/Cargo.toml --offline --locked (27 unit + 9 end-to-end tests against a local 127.0.0.1 HTTP server; two identical runs on 2026-11-04). These are finite fixtures; the only live run was the 2026-11-04 smoke against the project's own site.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/tools/seaspider/tests/http.rs.groupant/