df089f0585
Materializa el patrón "import + override" del brazo. Hasta ahora BRAHMAN_CARDS_TEMPLATES_DIR existía como mecanismo pero el repo no shippeaba ningún template. 3 templates basic bajo crates/core/brahman-cards/templates/: - ente_basic.ncl: Card runtime mínima (Virtual + OneShot). - monad_basic.ncl: Mónada con metadata vacía. - ui_module_basic.ncl: descriptor UI con entities/menu/views vacíos. Cada field override-able marcada `| default` (sin eso Nickel rebota merge de strings/numbers no-iguales). Nuevo `pub fn canonical_templates_dir() -> PathBuf` resuelve el dir via CARGO_MANIFEST_DIR. Para distribución del binary standalone queda como pending (include_dir! o convención de install path). 5 tests E2E que cubren los 3 templates con import+override, sanity del default sin override, y existencia física del dir. Tests brahman-cards: 26 → 31 (+5). Workspace intacto. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
218 lines
7.4 KiB
Rust
218 lines
7.4 KiB
Rust
//! Tests E2E de los templates canónicos shipped con el crate.
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//!
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//! Cada test escribe un Card user-side en un tempdir, importa el
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//! template canónico, override id/label/etc., y verifica que el
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//! brazo lo dispatcha al variant correcto del CardBody con los
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//! valores merged.
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//!
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//! `BRAHMAN_CARDS_TEMPLATES_DIR` se setea localmente en cada test.
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//! Como Nickel también busca relativo al input file, usamos el env
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//! para que `import "ente_basic.ncl"` (sin path) resuelva desde
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//! cualquier ubicación del input.
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use std::fs;
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use std::path::PathBuf;
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use brahman_cards::{
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canonical_templates_dir, load_card, CardBody, BRAHMAN_CARDS_TEMPLATES_ENV,
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};
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/// Helper: corre `f()` con `BRAHMAN_CARDS_TEMPLATES_ENV` set al
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/// directorio de templates canónicos, restaurando el env al salir.
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///
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/// Tests no son thread-safe entre sí cuando comparten env. Por eso
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/// quedan en serial via `nextest --test-threads=1` o `cargo test`
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/// que paralelizara sólo entre `tests/*.rs` distintos. Como este
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/// archivo encapsula todo el setup de env, aún en paralelo entre
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/// archivos de tests no chocan (cada thread setea/restaura).
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fn with_canonical_templates<F: FnOnce()>(f: F) {
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let prev = std::env::var(BRAHMAN_CARDS_TEMPLATES_ENV).ok();
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let dir = canonical_templates_dir();
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// SAFETY: env mutation single-threaded en este test.
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unsafe {
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std::env::set_var(BRAHMAN_CARDS_TEMPLATES_ENV, &dir);
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}
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let result = std::panic::catch_unwind(std::panic::AssertUnwindSafe(f));
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unsafe {
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match prev {
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Some(v) => std::env::set_var(BRAHMAN_CARDS_TEMPLATES_ENV, v),
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None => std::env::remove_var(BRAHMAN_CARDS_TEMPLATES_ENV),
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}
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}
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if let Err(panic) = result {
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std::panic::resume_unwind(panic);
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}
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}
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fn unique_dir(name: &str) -> PathBuf {
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let mut p = std::env::temp_dir();
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p.push(format!(
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"brahman-cards-templates-{}-{}-{}",
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std::process::id(),
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std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.map(|d| d.as_nanos())
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.unwrap_or(0),
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name
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));
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fs::create_dir_all(&p).unwrap();
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p
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}
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#[test]
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fn ente_basic_template_overridden_loads_as_ente_card() {
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with_canonical_templates(|| {
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let dir = unique_dir("ente");
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let card_path = dir.join("my_ente.ncl");
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fs::write(
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&card_path,
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r#"
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let base = import "ente_basic.ncl" in
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base & {
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id = "01ARZ3NDEKTSV4RRFFQ69G5FAV",
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label = "mi-ente",
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}
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"#,
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)
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.unwrap();
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let card = load_card(&card_path).expect("load ente");
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assert_eq!(card.id, "01ARZ3NDEKTSV4RRFFQ69G5FAV");
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assert_eq!(card.label, "mi-ente");
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assert_eq!(card.body.kind_name(), "ente");
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match card.body {
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CardBody::Ente(e) => {
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assert_eq!(e.label, "mi-ente");
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// Defaults del template intactos.
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assert_eq!(e.schema_version, 1);
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// Payload es el "Virtual" del template default.
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assert!(
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matches!(e.payload, brahman_card::Payload::Virtual),
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"payload debería ser Virtual, got {:?}",
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e.payload
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);
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}
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other => panic!("variant inesperado: {:?}", other.kind_name()),
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}
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fs::remove_dir_all(&dir).ok();
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});
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}
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#[test]
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fn monad_basic_template_overridden_loads_as_monad_card() {
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with_canonical_templates(|| {
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let dir = unique_dir("monad");
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let card_path = dir.join("my_monad.ncl");
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fs::write(
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&card_path,
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r#"
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let base = import "monad_basic.ncl" in
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base & {
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id = "01ARZ3NDEKTSV4RRFFQ69G5FAW",
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label = "fotos-2026",
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cardinality = 5,
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}
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"#,
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)
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.unwrap();
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let card = load_card(&card_path).expect("load monad");
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assert_eq!(card.id, "01ARZ3NDEKTSV4RRFFQ69G5FAW");
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assert_eq!(card.label, "fotos-2026");
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assert_eq!(card.body.kind_name(), "monad");
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match card.body {
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CardBody::Monad(m) => {
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assert_eq!(m.label, "fotos-2026");
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assert_eq!(m.cardinality, 5);
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// Defaults del template intactos.
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assert_eq!(m.schema_version, 1);
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assert!(m.members.is_empty());
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assert!(m.summary.is_empty());
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}
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other => panic!("variant inesperado: {:?}", other.kind_name()),
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}
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fs::remove_dir_all(&dir).ok();
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});
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}
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#[test]
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fn ui_module_basic_template_overridden_loads_as_ui_module_card() {
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with_canonical_templates(|| {
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let dir = unique_dir("ui");
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let card_path = dir.join("my_module.ncl");
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fs::write(
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&card_path,
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r#"
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let base = import "ui_module_basic.ncl" in
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base & {
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id = "customers",
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label = "Clientes",
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menu = [{ label = "Lista", view = "list" }],
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views = {
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list = {
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kind = "list",
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title = "Customers",
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entity = "Customer",
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columns = [],
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},
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},
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}
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"#,
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)
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.unwrap();
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let card = load_card(&card_path).expect("load ui_module");
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assert_eq!(card.id, "customers");
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assert_eq!(card.label, "Clientes");
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assert_eq!(card.body.kind_name(), "ui_module");
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match card.body {
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CardBody::UiModule(m) => {
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assert_eq!(m.id, "customers");
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assert_eq!(m.menu.len(), 1);
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assert!(m.views.contains_key("list"));
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// Defaults del template: entities vacío.
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assert!(m.entities.is_empty());
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}
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other => panic!("variant inesperado: {:?}", other.kind_name()),
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}
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fs::remove_dir_all(&dir).ok();
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});
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}
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#[test]
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fn template_default_id_and_label_pass_through_when_not_overridden() {
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// Sanity: si el usuario importa el template SIN override de
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// id/label, los defaults `"TEMPLATE_ID"` y `"TEMPLATE_LABEL"`
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// pasan al wrapper Card.id/label. El brazo no falla — sólo
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// los muestra como están. Validar este flow garantiza que un
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// user "vacío" (importa y no override) carga sin error.
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with_canonical_templates(|| {
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let dir = unique_dir("defaults");
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let card_path = dir.join("noop.ncl");
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fs::write(&card_path, r#"import "ui_module_basic.ncl""#).unwrap();
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let card = load_card(&card_path).expect("load defaults");
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assert_eq!(card.id, "TEMPLATE_ID");
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assert_eq!(card.label, "TEMPLATE_LABEL");
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fs::remove_dir_all(&dir).ok();
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});
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}
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#[test]
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fn canonical_templates_dir_actually_exists() {
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// Sanity: el path expuesto por canonical_templates_dir tiene
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// que apuntar a un directorio que existe físicamente, sino los
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// tests anteriores fallarían silenciosamente (Nickel reporta
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// import-not-found pero el test ya estaría roto).
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let d = canonical_templates_dir();
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assert!(d.is_dir(), "templates dir no existe: {}", d.display());
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for fname in ["ente_basic.ncl", "monad_basic.ncl", "ui_module_basic.ncl"] {
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let p = d.join(fname);
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assert!(p.is_file(), "template missing: {}", p.display());
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}
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}
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