Stat4: Add Test

sqlite4_opt_stat4_test.go

@@ -0,0 +1,52 @@
+// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
+// Copyright (C) 2018 G.J.R. Timmer <gjr.timmer@gmail.com>.
+//
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file.
+
+// +build sqlite_stat4
+
+package sqlite3
+
+import (
+	"database/sql"
+	"os"
+	"testing"
+)
+
+func TestStat4(t *testing.T) {
+	tempFilename := TempFilename(t)
+	defer os.Remove(tempFilename)
+
+	db, err := sql.Open("sqlite3", "file:"+tempFilename)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	_, err = db.Exec("drop table foo")
+	_, err = db.Exec("create table foo (id integer)")
+	_, err = db.Exec("create index idx_id on foo(id)")
+	if err != nil {
+		t.Fatal("Failed to create table:", err)
+	}
+
+	tx, err := db.Begin()
+	for i := 0; i < 10000; i++ {
+		tx.Exec("insert into foo(id) VALUES(?)", i)
+	}
+	tx.Commit()
+
+	if _, err := db.Exec("ANALYZE"); err != nil {
+		t.Fatal(err)
+	}
+
+	exists := 0
+	if err := db.QueryRow("select count(type) from sqlite_master where type = 'table' and name = 'sqlite_stat4';").Scan(&exists); err != nil {
+		t.Fatal(err)
+	}
+
+	if exists != 1 {
+		t.Fatal("Failed to enabled STAT4")
+	}
+}