open-standards/wai/wai-rs/tests/direction.rs
Transaction Science 726f8f448a wai.media.direction: storyboard, keyframes and sequence records bound to a directed output
The extension text (extensions/direction.md), the wai-rs module behind the
feature direction (records, the framing measure, interpolation, the pinned
render, governance, verification), its corpus generator and test, the corpus
live-conformance/direction/vectors.json and its second implementation,
direction_verify.py.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-21 15:45:37 -04:00

61 lines
2.8 KiB
Rust

//! `wai.media.direction` (extensions/direction.md): the committed corpus
//! `live-conformance/direction/` regenerates byte for byte from its fixed seeds, holds no other
//! file, every case in it gets the outcome it states, and the extension's §13 lists exactly the
//! reasons the reference reports. The generator itself asserts that the corpus gives every one
//! of them.
#![cfg(feature = "direction")]
use std::collections::BTreeMap;
use std::path::PathBuf;
use wai::direction::{corpus, Reason};
fn wai_dir() -> PathBuf {
PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("..")
}
fn committed() -> BTreeMap<String, String> {
let dir = wai_dir().join("live-conformance/direction");
std::fs::read_dir(&dir)
.expect("the committed corpus")
.flatten()
.map(|e| (e.file_name().to_string_lossy().into_owned(), e.path()))
.filter(|(n, _)| n != "README.md")
.map(|(n, p)| (n, std::fs::read_to_string(p).expect("a text file")))
.collect()
}
#[test]
fn the_committed_corpus_regenerates_from_its_seeds() {
let files = committed();
let generated: BTreeMap<String, String> = corpus::generate().into_iter().collect();
let extra: Vec<&String> = files.keys().filter(|k| !generated.contains_key(*k)).collect();
let missing: Vec<&String> = generated.keys().filter(|k| !files.contains_key(*k)).collect();
let differ: Vec<&String> = generated.iter().filter(|(k, v)| files.get(*k).is_some_and(|f| f != *v)).map(|(k, _)| k).collect();
assert!(extra.is_empty() && missing.is_empty() && differ.is_empty(), "extra {extra:?}, missing {missing:?}, differ {differ:?}: run `wai_direction_vectors gen`");
}
#[test]
fn every_case_gets_its_stated_outcome() {
let fails = corpus::verify(&committed());
assert!(fails.is_empty(), "{}", fails.join("\n"));
}
/// §13 of the extension lists exactly the codes `Reason::ALL` has, each once, in order.
#[test]
fn the_extension_lists_the_reasons() {
let text = std::fs::read_to_string(wai_dir().join("extensions/direction.md")).expect("the extension");
let at = text.find("\n## 13. Reasons").expect("a §13");
let end = text[at + 1..].find("\n## ").map_or(text.len(), |e| at + 1 + e);
let listed: Vec<String> =
text[at..end].lines().filter(|l| l.starts_with("| `")).filter_map(|l| l.split('`').nth(1).map(String::from)).collect();
let want: Vec<String> = Reason::ALL.iter().map(|r| r.code().to_string()).collect();
assert_eq!(listed, want, "§13's table and Reason::ALL differ");
}
/// The corpus generates with the model file of `wai.generate.spectral`'s conformance vector,
/// byte for byte (§14).
#[test]
fn the_corpus_names_the_generators_model_file() {
let file = std::fs::read(PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("tests/vectors/generate/generate_spectral_model.json")).expect("the model file");
assert_eq!(file, corpus::MODEL_FILE.as_bytes());
}