fixtures.rs

1#[path = "common/rows.rs"]2mod rows;34use rows::sha256;5use serde_json::Value;6use std::path::Path;78fn stored(module: &str) -> Vec<Value> {9    let file = Path::new(env!("CARGO_MANIFEST_DIR"))10        .join("fixtures")11        .join(format!("{module}.json"));12    let text = std::fs::read_to_string(&file)13        .unwrap_or_else(|_| panic!("{} is missing; run the fixtures example", file.display()));14    serde_json::from_str(&text).unwrap()15}1617fn replays(module: &str) {18    let saved = stored(module);19    let fresh = rows::rows(module);20    assert_eq!(21        saved.len(),22        fresh.len(),23        "{module}.json holds {} rows, the example writes {}",24        saved.len(),25        fresh.len()26    );27    for (index, (was, now)) in saved.iter().zip(&fresh).enumerate() {28        let name = was["fn"].as_str().unwrap_or("?");29        assert_eq!(was["fn"], now["fn"], "{module}.json row {index} is not {name}");30        assert_eq!(31            was["in"], now["in"],32            "{module}.json row {index} {name}: the arguments drifted"33        );34        assert_eq!(35            was["note"], now["note"],36            "{module}.json row {index} {name}: the note drifted"37        );38        assert_eq!(39            was["out"], now["out"],40            "{module}.json row {index} {name}: the stored value is not what the crate returns"41        );42    }43}4445#[test]46fn the_sha256_holds_its_standard_vectors() {47    assert_eq!(48        sha256::hex(b""),49        "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"50    );51    assert_eq!(52        sha256::hex(b"abc"),53        "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"54    );55}5657#[test]58fn the_six_files_hold_thirty_three_rows() {59    let counted: Vec<usize> = rows::MODULES.iter().map(|m| stored(m).len()).collect();60    assert_eq!(counted, vec![4, 6, 7, 5, 6, 5]);61    assert_eq!(counted.iter().sum::<usize>(), 33);62}6364#[test]65fn core_replays() {66    replays("core");67}6869#[test]70fn num_replays() {71    replays("num");72}7374#[test]75fn math_replays() {76    replays("math");77}7879#[test]80fn gen_replays() {81    replays("gen");82}8384#[test]85fn life_replays() {86    replays("life");87}8889#[test]90fn font_replays() {91    replays("font");92}