fix: support account creation on pxc

server/db/mysql/adapter_pxc_test.go

@@ -0,0 +1,35 @@
+//go:build mysql
+
+package mysql
+
+import (
+	"errors"
+	"testing"
+
+	ms "github.com/go-sql-driver/mysql"
+)
+
+func TestPXCStrictModeNamedLockError(t *testing.T) {
+	err := &ms.MySQLError{
+		Number:  1105,
+		Message: "Percona-XtraDB-Cluster prohibits use of GET_LOCK with pxc_strict_mode = ENFORCING",
+	}
+	if !isPXCStrictModeNamedLockError(err) {
+		t.Fatal("expected PXC GET_LOCK strict mode error to be recognized")
+	}
+
+	err = &ms.MySQLError{
+		Number:  1105,
+		Message: "Percona-XtraDB-Cluster prohibits use of RELEASE_LOCK with pxc_strict_mode = ENFORCING",
+	}
+	if !isPXCStrictModeNamedLockError(err) {
+		t.Fatal("expected PXC RELEASE_LOCK strict mode error to be recognized")
+	}
+
+	if isPXCStrictModeNamedLockError(&ms.MySQLError{Number: 1062, Message: "Duplicate entry"}) {
+		t.Fatal("duplicate errors must not be recognized as PXC named lock errors")
+	}
+	if isPXCStrictModeNamedLockError(errors.New("GET_LOCK failed")) {
+		t.Fatal("generic errors must not be recognized as PXC named lock errors")
+	}
+}