test: lobby, session, store tests — deep copy, logs, inventory, stats

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

store/db_test.go

@@ -53,3 +53,41 @@ func TestRanking(t *testing.T) {
 		t.Errorf("Top player: got %q, want Charlie", rankings[0].Player)
 	}
 }
+
+func TestGetStats(t *testing.T) {
+	dir := t.TempDir()
+	db, err := Open(dir + "/test.db")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	// Save some runs
+	db.SaveRun("Alice", 5, 100)
+	db.SaveRun("Alice", 10, 250)
+	db.SaveRun("Alice", 20, 500) // victory (floor >= 20)
+	db.SaveRun("Bob", 3, 50)
+
+	stats, err := db.GetStats("Alice")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if stats.TotalRuns != 3 {
+		t.Errorf("expected 3 total runs, got %d", stats.TotalRuns)
+	}
+	if stats.BestFloor != 20 {
+		t.Errorf("expected best floor 20, got %d", stats.BestFloor)
+	}
+	if stats.Victories != 1 {
+		t.Errorf("expected 1 victory, got %d", stats.Victories)
+	}
+	if stats.TotalGold != 850 { // 100+250+500
+		t.Errorf("expected total gold 850, got %d", stats.TotalGold)
+	}
+
+	// Bob's stats should be separate
+	bobStats, _ := db.GetStats("Bob")
+	if bobStats.TotalRuns != 1 {
+		t.Errorf("Bob should have 1 run, got %d", bobStats.TotalRuns)
+	}
+}