Benchmark Stmt cache.

cache_test.go

 package sqlite_test
 
 import (
+	. "github.com/gwenn/gosqlite"
 	"testing"
 )
 
+func checkCacheSize(t *testing.T, db *Conn, expectedSize, expectedMaxSize int) {
+	if size, maxSize := db.CacheSize(); size != expectedSize || maxSize != expectedMaxSize {
+		t.Errorf("%d <> %d || %d <> %d", expectedSize, size, expectedMaxSize, maxSize)
+	}
+}
+
 func TestDisabledCache(t *testing.T) {
 	db := open(t)
 	defer db.Close()
 
 	db.SetCacheSize(0)
-	if size, maxSize := db.CacheSize(); size != 0 || maxSize != 0 {
-		t.Errorf("%d <> %d || %d <> %d", 0, size, 0, maxSize)
-	}
+	checkCacheSize(t, db, 0, 0)
 
 	s, err := db.CacheOrPrepare("SELECT 1")
 	checkNoError(t, err, "couldn't prepare stmt: %#v")
@@ -21,10 +26,7 @@ func TestDisabledCache(t *testing.T) {
 
 	err = s.Finalize()
 	checkNoError(t, err, "couldn't finalize stmt: %#v")
-
-	if size, maxSize := db.CacheSize(); size != 0 || maxSize != 0 {
-		t.Errorf("%d <> %d || %d <> %d", 0, size, 0, maxSize)
-	}
+	checkCacheSize(t, db, 0, 0)
 }
 
 func TestEnabledCache(t *testing.T) {
@@ -32,9 +34,7 @@ func TestEnabledCache(t *testing.T) {
 	defer db.Close()
 
 	db.SetCacheSize(10)
-	if size, maxSize := db.CacheSize(); size != 0 || maxSize != 10 {
-		t.Errorf("%d <> %d || %d <> %d", 0, size, 10, maxSize)
-	}
+	checkCacheSize(t, db, 0, 10)
 
 	s, err := db.CacheOrPrepare("SELECT 1")
 	checkNoError(t, err, "couldn't prepare stmt: %#v")
@@ -44,24 +44,48 @@ func TestEnabledCache(t *testing.T) {
 
 	err = s.Finalize()
 	checkNoError(t, err, "couldn't finalize stmt: %#v")
-	if size, maxSize := db.CacheSize(); size != 1 || maxSize != 10 {
-		t.Errorf("%d <> %d || %d <> %d", 1, size, 10, maxSize)
-	}
+	checkCacheSize(t, db, 1, 10)
 
 	ns, err := db.CacheOrPrepare("SELECT 1")
 	checkNoError(t, err, "couldn't prepare stmt: %#v")
-	if size, maxSize := db.CacheSize(); size != 0 || maxSize != 10 {
-		t.Errorf("%d <> %d || %d <> %d", 0, size, 10, maxSize)
-	}
+	checkCacheSize(t, db, 0, 10)
 
 	err = ns.Finalize()
 	checkNoError(t, err, "couldn't finalize stmt: %#v")
-	if size, maxSize := db.CacheSize(); size != 1 || maxSize != 10 {
-		t.Errorf("%d <> %d || %d <> %d", 1, size, 10, maxSize)
-	}
+	checkCacheSize(t, db, 1, 10)
+
+	db.SetCacheSize(0)
+	checkCacheSize(t, db, 0, 0)
+}
 
+func BenchmarkDisabledCache(b *testing.B) {
+	db, _ := Open("")
+	defer db.Close()
 	db.SetCacheSize(0)
+
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		s, _ := db.CacheOrPrepare("SELECT 1, 'test', 3.14 UNION SELECT 2, 'exp', 2.71")
+		s.Finalize()
+	}
+
 	if size, maxSize := db.CacheSize(); size != 0 || maxSize != 0 {
-		t.Errorf("%d <> %d || %d <> %d", 0, size, 0, maxSize)
+		b.Errorf("%d <> %d || %d <> %d", 0, size, 0, maxSize)
+	}
+}
+
+func BenchmarkEnabledCache(b *testing.B) {
+	db, _ := Open("")
+	defer db.Close()
+	db.SetCacheSize(10)
+
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		s, _ := db.CacheOrPrepare("SELECT 1, 'test', 3.14 UNION SELECT 2, 'exp', 2.71")
+		s.Finalize()
+	}
+
+	if size, maxSize := db.CacheSize(); size != 1 || maxSize != 10 {
+		b.Errorf("%d <> %d || %d <> %d", 1, size, 10, maxSize)
 	}
 }