1 files changed, 102 insertions, 0 deletions
diff --git a/tests/functional/limit.go b/tests/functional/limit.go
new file mode 100644
index 0000000..8c65a25
--- /dev/null
+++ b/tests/functional/limit.go
@@ -0,0 +1,102 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+
+	"golite"
+)
+
+func createBulkInsertQuery(n int, start int) (string, []any) {
+	values := make([]string, n)
+	args   := make([]any, n*2)
+	pos := 0
+	for i := 0; i < n; i++ {
+		values[i] = "(?, ?)"
+		args[pos] = start + i
+		args[pos+1] = fmt.Sprintf("こんにちは世界%03d", i)
+		pos += 2
+	}
+	query := fmt.Sprintf(
+		"insert into mylimittable(id, name) values %s",
+		strings.Join(values, ", "),
+	)
+	return query, args
+}
+
+func bulkInsert(db *sql.DB, query string, args []any) error {
+	stmt, err := db.Prepare(query)
+	if err != nil {
+		return err
+	}
+
+	_, err = stmt.Exec(args...)
+	return err
+}
+
+func main() {
+	const (
+		num        = 400
+		smallLimit = 100
+		bigLimit   = 999999
+	)
+
+	const SQL = `
+		create table mylimittable (id integer not null primary key, name text);
+		delete from mylimittable;
+	`
+
+	var conn *golite.SQLiteConn
+	sql.Register("sqlite3_with_limit", &golite.SQLiteDriver{
+		ConnectHook: func(c *golite.SQLiteConn) error {
+			conn = c
+			return nil
+		},
+	})
+
+	os.Remove("limit.db")
+	defer os.Remove("limit.db")
+	db, err := sql.Open("sqlite3_with_limit", "limit.db")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer db.Close()
+
+	_, err = db.Exec(SQL)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if conn == nil {
+		log.Fatal("not set sqlite3 connection")
+	}
+
+	{
+		query, args := createBulkInsertQuery(num, 0)
+		err := bulkInsert(db, query, args)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+
+	conn.SetLimit(golite.SQLITE_LIMIT_VARIABLE_NUMBER, smallLimit)
+	{
+		query, args := createBulkInsertQuery(num, num)
+		err := bulkInsert(db, query, args)
+		if err == nil {
+			log.Fatal("expected failure didn't happen")
+		}
+	}
+
+	conn.SetLimit(golite.SQLITE_LIMIT_VARIABLE_NUMBER, bigLimit)
+	{
+		query, args := createBulkInsertQuery(500, num+num)
+		err := bulkInsert(db, query, args)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+}