Go vs CGo benchmarks refactored (not TPCH)

benchmark/bench_test.go

@@ -0,0 +1,45 @@
+// Copyright 2021 The Sqlite Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// this file allows to run benchmarks via go test
+package benchmark
+
+import (
+	"math"
+	"testing"
+)
+
+func BenchmarkSelect(b *testing.B) {
+	doBenchmarkOfNrows(b, benchmarkSelect)
+}
+
+// https://gitlab.com/cznic/sqlite/-/issues/39
+func BenchmarkInsert(b *testing.B) {
+	doBenchmarkOfNrows(b, benchmarkInsert)
+}
+
+func doBenchmarkOfNrows(b *testing.B, benchFunc bechmarkOfNRows) {
+	for _, isMemoryDB := range inMemory { // in-memory: on/off
+		for _, e := range rowCountsE { // number of rows in table
+			for _, driverName := range drivers { // drivers
+
+				// create new DB
+				db := createDB(b, isMemoryDB, driverName)
+
+				// run benchmark
+				b.Run(
+					makeName(isMemoryDB, driverName, e),
+					func(b *testing.B) {
+						benchFunc(b, db, int(math.Pow10(e)))
+					},
+				)
+
+				// close DB
+				if err := db.Close(); err != nil {
+					b.Fatal(err)
+				}
+			}
+		}
+	}
+}