init

crates/application/tests/entry/mood_stats_test.rs

@@ -0,0 +1,62 @@
+use std::sync::Arc;
+
+use domain::entry::Mood;
+use domain::ports::MoodEntryCommandPort;
+use domain::testing::{InMemoryStore, test_entry_days_ago, test_user};
+
+use application::entry::queries::MoodStatsQuery;
+use application::entry::use_cases::get_mood_stats;
+
+#[tokio::test]
+async fn computes_stats_across_entries() {
+    let store = Arc::new(InMemoryStore::new());
+    let user = test_user("alice");
+
+    store
+        .save(&test_entry_days_ago(user.id().clone(), Mood::Good, 0))
+        .await
+        .unwrap();
+    store
+        .save(&test_entry_days_ago(user.id().clone(), Mood::Rad, 1))
+        .await
+        .unwrap();
+    store
+        .save(&test_entry_days_ago(user.id().clone(), Mood::Meh, 2))
+        .await
+        .unwrap();
+
+    let deps = get_mood_stats::Deps {
+        query: store.clone(),
+    };
+
+    let query = MoodStatsQuery {
+        user_id: user.id().clone(),
+        range: None,
+    };
+
+    let stats = get_mood_stats::execute(query, &deps).await.unwrap();
+
+    assert_eq!(stats.total_entries, 3);
+    assert!(stats.average.is_some());
+    assert_eq!(stats.current_streak, 3);
+    assert!(!stats.frequency.is_empty());
+}
+
+#[tokio::test]
+async fn empty_entries_give_zero_stats() {
+    let store = Arc::new(InMemoryStore::new());
+    let deps = get_mood_stats::Deps {
+        query: store.clone(),
+    };
+
+    let query = MoodStatsQuery {
+        user_id: test_user("nobody").id().clone(),
+        range: None,
+    };
+
+    let stats = get_mood_stats::execute(query, &deps).await.unwrap();
+
+    assert_eq!(stats.total_entries, 0);
+    assert!(stats.average.is_none());
+    assert_eq!(stats.current_streak, 0);
+}