diff --git a/test/log.cc b/test/log.cc
index 521e1d69..7bc3ecf6 100644
--- a/test/log.cc
+++ b/test/log.cc
@@ -37,6 +37,31 @@ void __noreturn failure_perror(const char *what, int errnum) {
 
 //-----------------------------------------------------------------------------
 
+static void mdbx_logger(int type, const char *function, int line,
+                        const char *msg, va_list args) {
+  logging::loglevel level = logging::info;
+  if (type & MDBX_DBG_EXTRA)
+    level = logging::extra;
+  if (type & MDBX_DBG_TRACE)
+    level = logging::trace;
+  if (type & MDBX_DBG_PRINT)
+    level = logging::verbose;
+
+  if (!function)
+    function = "unknown";
+  if (type & MDBX_DBG_ASSERT) {
+    log_error("mdbx: assertion failure: %s, %d", function, line);
+    level = logging::failure;
+  }
+
+  if (logging::output(
+          level,
+          strncmp(function, "mdbx_", 5) == 0 ? "%s: " : "mdbx: %s: ", function))
+    logging::feed(msg, args);
+  if (type & MDBX_DBG_ASSERT)
+    abort();
+}
+
 namespace logging {
 
 static std::string prefix;
@@ -44,8 +69,19 @@ static std::string suffix;
 static loglevel level;
 static FILE *last;
 
-void setup(loglevel _level, const std::string &_prefix) {
+void setlevel(loglevel _level) {
   level = (_level > error) ? failure : _level;
+  int mdbx_dbg_opts = MDBX_DBG_ASSERT | MDBX_DBG_JITTER | MDBX_DBG_DUMP;
+  if (level <= trace)
+    mdbx_dbg_opts |= MDBX_DBG_TRACE;
+  if (level <= verbose)
+    mdbx_dbg_opts |= MDBX_DBG_PRINT;
+  int rc = mdbx_setup_debug(mdbx_dbg_opts, mdbx_logger);
+  log_trace("set mdbx debug-opts: 0x%02x", rc);
+}
+
+void setup(loglevel _level, const std::string &_prefix) {
+  setlevel(_level);
   prefix = _prefix;
 }
 
diff --git a/test/log.h b/test/log.h
index 3e9f9483..7350f1b9 100644
--- a/test/log.h
+++ b/test/log.h
@@ -37,6 +37,7 @@ enum loglevel {
 const char *level2str(const loglevel level);
 void setup(loglevel level, const std::string &prefix);
 void setup(const std::string &prefix);
+void setlevel(loglevel level);
 
 bool output(const loglevel priority, const char *format, va_list ap);
 bool __printf_args(2, 3)
diff --git a/test/test.cc b/test/test.cc
index 80694827..c28bbd22 100644
--- a/test/test.cc
+++ b/test/test.cc
@@ -68,31 +68,6 @@ const char *keygencase2str(const keygen_case keycase) {
 
 //-----------------------------------------------------------------------------
 
-static void mdbx_logger(int type, const char *function, int line,
-                        const char *msg, va_list args) {
-  logging::loglevel level = logging::info;
-  if (type & MDBX_DBG_EXTRA)
-    level = logging::extra;
-  if (type & MDBX_DBG_TRACE)
-    level = logging::trace;
-  if (type & MDBX_DBG_PRINT)
-    level = logging::verbose;
-
-  if (!function)
-    function = "unknown";
-  if (type & MDBX_DBG_ASSERT) {
-    log_error("mdbx: assertion failure: %s, %d", function, line);
-    level = logging::failure;
-  }
-
-  if (logging::output(
-          level,
-          strncmp(function, "mdbx_", 5) == 0 ? "%s: " : "mdbx: %s: ", function))
-    logging::feed(msg, args);
-  if (type & MDBX_DBG_ASSERT)
-    abort();
-}
-
 int testcase::oom_callback(MDBX_env *env, int pid, mdbx_tid_t tid, uint64_t txn,
                            unsigned gap, int retry) {
 
@@ -117,16 +92,8 @@ void testcase::db_prepare() {
   log_trace(">> db_prepare");
   assert(!db_guard);
 
-  int mdbx_dbg_opts = MDBX_DBG_ASSERT | MDBX_DBG_JITTER | MDBX_DBG_DUMP;
-  if (config.params.loglevel <= logging::trace)
-    mdbx_dbg_opts |= MDBX_DBG_TRACE;
-  if (config.params.loglevel <= logging::verbose)
-    mdbx_dbg_opts |= MDBX_DBG_PRINT;
-  int rc = mdbx_setup_debug(mdbx_dbg_opts, mdbx_logger);
-  log_trace("set mdbx debug-opts: 0x%02x", rc);
-
   MDBX_env *env = nullptr;
-  rc = mdbx_env_create(&env);
+  int rc = mdbx_env_create(&env);
   if (unlikely(rc != MDBX_SUCCESS))
     failure_perror("mdbx_env_create()", rc);