Add simple benchmark for SnapshotCollection.ForEach()

deb/snapshot_bench_test.go

@@ -0,0 +1,38 @@
+package deb
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/aptly-dev/aptly/database"
+)
+
+func BenchmarkSnapshotCollectionForEach(b *testing.B) {
+	const count = 1024
+
+	tmpDir := os.TempDir()
+	defer os.RemoveAll(tmpDir)
+
+	db, _ := database.NewOpenDB(tmpDir)
+	defer db.Close()
+
+	collection := NewSnapshotCollection(db)
+
+	for i := 0; i < count; i++ {
+		snapshot := NewSnapshotFromRefList(fmt.Sprintf("snapshot%d", i), nil, NewPackageRefList(), fmt.Sprintf("Snapshot number %d", i))
+		if collection.Add(snapshot) != nil {
+			b.FailNow()
+		}
+	}
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		collection = NewSnapshotCollection(db)
+
+		collection.ForEach(func(s *Snapshot) error {
+			return nil
+		})
+	}
+}