Upgrade gopkg.in/testfixtures.v2 (#4999)

vendor/gopkg.in/testfixtures.v2/sqlite.go

@@ -14,23 +14,59 @@ func (*SQLite) paramType() int {
 	return paramTypeQuestion
 }
 
-func (*SQLite) databaseName(db *sql.DB) (dbName string) {
+func (*SQLite) databaseName(q queryable) (string, error) {
 	var seq int
-	var main string
-	db.QueryRow("PRAGMA database_list").Scan(&seq, &main, &dbName)
+	var main, dbName string
+	err := q.QueryRow("PRAGMA database_list").Scan(&seq, &main, &dbName)
+	if err != nil {
+		return "", err
+	}
 	dbName = filepath.Base(dbName)
-	return
+	return dbName, nil
 }
 
-func (*SQLite) disableReferentialIntegrity(db *sql.DB, loadFn loadFunction) error {
+func (*SQLite) tableNames(q queryable) ([]string, error) {
+	query := `
+		SELECT name
+		FROM sqlite_master
+		WHERE type = 'table';
+	`
+	rows, err := q.Query(query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var tables []string
+	for rows.Next() {
+		var table string
+		if err = rows.Scan(&table); err != nil {
+			return nil, err
+		}
+		tables = append(tables, table)
+	}
+	if err = rows.Err(); err != nil {
+		return nil, err
+	}
+	return tables, nil
+}
+
+func (*SQLite) disableReferentialIntegrity(db *sql.DB, loadFn loadFunction) (err error) {
+	defer func() {
+		if _, err2 := db.Exec("PRAGMA defer_foreign_keys = OFF"); err2 != nil && err == nil {
+			err = err2
+		}
+	}()
+
+	if _, err = db.Exec("PRAGMA defer_foreign_keys = ON"); err != nil {
+		return err
+	}
+
 	tx, err := db.Begin()
 	if err != nil {
 		return err
 	}
-
-	if _, err = tx.Exec("PRAGMA defer_foreign_keys = ON"); err != nil {
-		return err
-	}
+	defer tx.Rollback()
 
 	if err = loadFn(tx); err != nil {
 		return err