add test util

Related to issue #15

util/create.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"os"
+
+	_ "github.com/mutecomm/go-sqlcipher/v4"
+)
+
+func create(dbname, password string) error {
+	dbnameWithDSN := dbname + fmt.Sprintf("?_pragma_key=%s&_pragma_cipher_page_size=4096", password)
+	db, err := sql.Open("sqlite3", dbnameWithDSN)
+	if err != nil {
+		return err
+	}
+	defer db.Close()
+	_, err = db.Exec("CREATE TABLE t1(a,b);")
+	if err != nil {
+		return err
+	}
+	_, err = db.Exec("INSERT INTO t1(a,b) values('one for the money', 'two for the show');")
+	return err
+}
+
+func fatal(err error) {
+	fmt.Fprintf(os.Stderr, "%s: error: %s\n", os.Args[0], err)
+	os.Exit(1)
+}
+
+func usage() {
+	fmt.Fprintf(os.Stderr, "usage: %s db_file password\n", os.Args[0])
+	os.Exit(2)
+}
+
+func main() {
+	if len(os.Args) != 3 {
+		usage()
+	}
+	if err := create(os.Args[1], os.Args[2]); err != nil {
+		fatal(err)
+	}
+}

util/select.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"os"
+
+	_ "github.com/mutecomm/go-sqlcipher/v4"
+)
+
+func selectFromDB(dbname, password string) error {
+	dbnameWithDSN := dbname + fmt.Sprintf("?_pragma_key=%s&_pragma_cipher_page_size=4096", password)
+	db, err := sql.Open("sqlite3", dbnameWithDSN)
+	if err != nil {
+		return err
+	}
+	defer db.Close()
+	var a, b string
+	row := db.QueryRow("SELECT * FROM t1;")
+	err = row.Scan(&a, &b)
+	if err != nil {
+		return err
+	}
+	fmt.Printf("%s, %s\n", a, b)
+	return nil
+}
+
+func fatal(err error) {
+	fmt.Fprintf(os.Stderr, "%s: error: %s\n", os.Args[0], err)
+	os.Exit(1)
+}
+
+func usage() {
+	fmt.Fprintf(os.Stderr, "usage: %s db_file password\n", os.Args[0])
+	os.Exit(2)
+}
+
+func main() {
+	if len(os.Args) != 3 {
+		usage()
+	}
+	if err := selectFromDB(os.Args[1], os.Args[2]); err != nil {
+		fatal(err)
+	}
+}