diff --git a/models/unittest/testdb.go b/models/unittest/testdb.go
index c1286d1f349..aed561fc28d 100644
--- a/models/unittest/testdb.go
+++ b/models/unittest/testdb.go
@@ -15,6 +15,7 @@ import (
 	"code.gitea.io/gitea/models/system"
 	"code.gitea.io/gitea/modules/cache"
 	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/setting/config"
 	"code.gitea.io/gitea/modules/storage"
@@ -58,6 +59,8 @@ APP_DATA_PATH = `+appDataPath+`
 		os.Exit(1)
 	}
 
+	_, _ = fmt.Fprintf(os.Stderr, "mainTest: %s\n%s\n", appDataPath, log.Stack(2))
+
 	giteaRoot := setting.GetGiteaTestSourceRoot()
 	fixturesOpts := FixturesOptions{Dir: filepath.Join(giteaRoot, "models", "fixtures"), Files: testOpts.FixtureFiles}
 	if err := CreateTestEngine(fixturesOpts); err != nil {