test: prove WIT boundary with real component integration test

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

crates/server/tests/component.rs

@@ -0,0 +1,93 @@
+use std::path::Path;
+
+use whoareyou_server::model::{FetchedResponse, ParseOutcome};
+use whoareyou_server::service::ProviderHandle;
+use whoareyou_server::wasm;
+
+const COMPONENT_PATH: &str = concat!(
+    env!("CARGO_MANIFEST_DIR"),
+    "/../../target/wasm32-wasip2/release/whoareyou_provider_hitta.wasm"
+);
+
+fn load_provider() -> wasm::WasmProvider {
+    let path = Path::new(COMPONENT_PATH);
+
+    assert!(
+        path.exists(),
+        "hitta component not built — run `cargo build --release --target wasm32-wasip2 -p whoareyou-provider-hitta` first"
+    );
+
+    let engine = wasm::engine().unwrap();
+    let linker = wasm::linker(&engine).unwrap();
+    wasm::spawn_epoch_thread(&engine);
+
+    wasm::WasmProvider::load(&engine, &linker, path).unwrap()
+}
+
+#[test]
+fn metadata_identifies_hitta() {
+    let provider = load_provider();
+
+    assert_eq!(provider.name(), "hitta.se");
+    assert!(!provider.version().is_empty());
+}
+
+#[test]
+fn requests_contain_the_number() {
+    let provider = load_provider();
+    let urls = provider.requests("0104754350").unwrap();
+
+    assert_eq!(urls, vec!["https://www.hitta.se/vem-ringde/0104754350"]);
+}
+
+#[test]
+fn parse_roundtrips_a_fixture_through_wasm() {
+    let provider = load_provider();
+    let body = include_str!("../../../fixtures/hitta/fresh-0104754350.html").to_string();
+
+    let outcome = provider.parse("0104754350", &[FetchedResponse { status: 200, body }]);
+
+    let ParseOutcome::Ok(entry) = outcome else {
+        panic!("expected Ok entry, got {outcome:?}");
+    };
+
+    assert_eq!(
+        entry.history,
+        vec!["Elva andra har rapporterat detta nummer"]
+    );
+    // every comment on this number has empty text -> filtered out in the parser
+    assert!(entry.comments.is_empty());
+}
+
+#[test]
+fn parse_maps_no_data_for_legacy_page() {
+    // 2019-format page: parser reports Failed (no flight data) -> ParseOutcome::Failed
+    let provider = load_provider();
+    let body = include_str!("../../../fixtures/hitta/0104754350.html").to_string();
+
+    let outcome = provider.parse("0104754350", &[FetchedResponse { status: 200, body }]);
+
+    assert!(
+        matches!(outcome, ParseOutcome::Failed(_)),
+        "got {outcome:?}"
+    );
+}
+
+#[test]
+fn parse_rejects_non_200_status() {
+    let provider = load_provider();
+
+    let outcome = provider.parse(
+        "0104754350",
+        &[FetchedResponse {
+            status: 429,
+            body: "rate limited".to_string(),
+        }],
+    );
+
+    let ParseOutcome::Failed(message) = outcome else {
+        panic!("expected Failed, got {outcome:?}");
+    };
+
+    assert!(message.contains("429"), "message was: {message}");
+}