test: preventing dubios ownership repository error on git unit tests (#…

…2499)

pkg/testing/testing.go

@@ -143,6 +143,13 @@ func ServeRepo(name string, t *testing.T) string {
 		repo   = filepath.Base(path)
 		url    = RunGitServer(abs, t)
 	)
+	// This is to prevent "fatal: detected dubious ownership in repository at <source_reposutory_path>" while executing
+	// unit tests on other environments (such as Prow CI)
+	cmd := exec.Command("git", "config", "--global", "--add", "safe.directory", abs)
+	_, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatal(err)
+	}
 	return fmt.Sprintf("%v/%v", url, repo)
 }