Add metric type filtering

1 files changed, 45 insertions, 0 deletions

diff --git a/src/tests.rs b/src/tests.rs
index d2ee143..1f539bd 100644
--- a/src/tests.rs
+++ b/src/tests.rs
@@ -274,12 +274,57 @@ async fn list_combines_filters_with_order_and_limit(pool: PgPool) {
 }
 
 #[sqlx::test]
+async fn list_filters_by_metric_type(pool: PgPool) {
+    let app = router(pool);
+    let rows = [
+        ("2026-10-14T12:00:00Z", "BodyWeight", 70.0, "Kilogram"),
+        ("2026-10-15T12:00:00Z", "Waist", 80.0, "Centimeter"),
+        ("2026-10-16T12:00:00Z", "BodyWeight", 71.0, "Kilogram"),
+        ("2026-10-17T12:00:00Z", "Hip", 95.0, "Centimeter"),
+        ("2026-10-18T12:00:00Z", "BodyWeight", 72.0, "Kilogram"),
+    ];
+    for (measured_at, metric_type, value, unit) in rows {
+        let body = measurement(measured_at, metric_type, value, unit);
+        let (status, _, _) = send(&app, Method::POST, "/measurements", Some(body)).await;
+        assert_eq!(status, StatusCode::CREATED);
+    }
+    let cases = [
+        ("/measurements", vec![70.0, 80.0, 71.0, 95.0, 72.0]),
+        (
+            "/measurements?metric_type=BodyWeight",
+            vec![70.0, 71.0, 72.0],
+        ),
+        ("/measurements?metric_type=Waist", vec![80.0]),
+        ("/measurements?metric_type=Hip", vec![95.0]),
+        (
+            "/measurements?metric_type=BodyWeight&order=desc&limit=2",
+            vec![72.0, 71.0],
+        ),
+        (
+            "/measurements?metric_type=BodyWeight&from=2026-10-15T00:00:00Z&to=2026-10-18T00:00:00Z",
+            vec![71.0],
+        ),
+        (
+            "/measurements?metric_type=Hip&to=2026-10-17T00:00:00Z",
+            vec![],
+        ),
+    ];
+    for (uri, expected) in cases {
+        let (status, rows) = get_json(&app, uri).await;
+        assert_eq!(status, StatusCode::OK, "{uri}");
+        assert_eq!(values(&rows), expected, "{uri}");
+    }
+}
+
+#[sqlx::test]
 async fn list_rejects_bad_queries(pool: PgPool) {
     let app = router(pool);
     let uris = [
         "/measurements?limit=0",
         "/measurements?limit=-1",
         "/measurements?order=sideways",
+        "/measurements?metric_type=Nope",
+        "/measurements?metric_type=bodyweight",
         "/measurements?from=bad",
         "/measurements?from=2026-10-15",
         "/measurements?to=2026-10-15T00:00:00",