diff --git a/tdactor/test/actors_main.cpp b/tdactor/test/actors_main.cpp
index ffceacc5..3e868ad0 100644
--- a/tdactor/test/actors_main.cpp
+++ b/tdactor/test/actors_main.cpp
@@ -405,7 +405,7 @@ TEST(Actors, send_to_dead) {
 }
 
 TEST(Actors, main_simple) {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(DEBUG));
+  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
 
   ConcurrentScheduler sched;
   int threads_n = 3;
@@ -420,7 +420,7 @@ TEST(Actors, main_simple) {
 }
 
 TEST(Actors, main) {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(DEBUG));
+  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
 
   ConcurrentScheduler sched;
   int threads_n = 9;
@@ -448,7 +448,7 @@ class DoAfterStop : public Actor {
 };
 
 TEST(Actors, do_after_stop) {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(DEBUG));
+  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
 
   ConcurrentScheduler sched;
   int threads_n = 0;
diff --git a/test/TestsRunner.cpp b/test/TestsRunner.cpp
index fbe15573..081c6bf1 100644
--- a/test/TestsRunner.cpp
+++ b/test/TestsRunner.cpp
@@ -52,7 +52,7 @@ static FileLog file_log;
 static TsLog ts_log(&file_log);
 
 void TestsRunner::init(string dir) {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(WARNING));
+  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
   chdir(dir).ensure();
   LOG(WARNING) << "Redirect log into " << tag("file", dir + TD_DIR_SLASH + "log.txt");
   if (file_log.init("log.txt", std::numeric_limits<int64>::max())) {
diff --git a/test/db.cpp b/test/db.cpp
index 8917dd65..fe19b51c 100644
--- a/test/db.cpp
+++ b/test/db.cpp
@@ -234,7 +234,7 @@ class BaselineKV {
 };
 
 TEST(DB, key_value) {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(INFO));
+  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
   std::vector<std::string> keys;
   std::vector<std::string> values;
 
@@ -409,7 +409,7 @@ TEST(DB, persistent_key_value) {
   using KeyValue = BinlogKeyValue<ConcurrentBinlog>;
   // using KeyValue = PersistentKeyValue;
   // using KeyValue = SqliteKV;
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(WARNING));
+  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
   std::vector<std::string> keys;
   std::vector<std::string> values;
   CSlice name = "test_pmc";
diff --git a/test/http.cpp b/test/http.cpp
index 98c94b2e..e965e185 100644
--- a/test/http.cpp
+++ b/test/http.cpp
@@ -129,7 +129,7 @@ TEST(Http, reader) {
   return;
 #endif
   clear_thread_locals();
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(INFO));
+  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
   auto start_mem = BufferAllocator::get_buffer_mem();
   {
     auto input_writer = ChainBufferWriter::create_empty();
diff --git a/test/main.cpp b/test/main.cpp
index 0ef46c75..68b0e3cd 100644
--- a/test/main.cpp
+++ b/test/main.cpp
@@ -16,6 +16,7 @@
 
 int main(int argc, char **argv) {
   // TODO port OptionsParser to Windows
+  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
   for (int i = 1; i < argc; i++) {
     if (!std::strcmp(argv[i], "--filter")) {
       CHECK(i + 1 < argc);
diff --git a/test/message_entities.cpp b/test/message_entities.cpp
index 473a8714..6be3b1f7 100644
--- a/test/message_entities.cpp
+++ b/test/message_entities.cpp
@@ -39,9 +39,9 @@ TEST(MessageEntities, mention) {
   check_mention("@abcdefghijklmnopqrstuvwxyz123456", {"@abcdefghijklmnopqrstuvwxyz123456"});
   check_mention("@abcdefghijklmnopqrstuvwxyz1234567", {});
   check_mention("нет@mention", {});
-  check_mention("@ya @gif @wiki @vid @bing @pic @bold @imdb @coub @like @vote @giff @cap ya cap @y @yar @bingg @bin",
-                {"@ya", "@gif", "@wiki", "@vid", "@bing", "@pic", "@bold", "@imdb", "@coub", "@like", "@vote", "@giff",
-                 "@cap", "@bingg"});
+  check_mention(
+      "@ya @gif @wiki @vid @bing @pic @bold @imdb @coub @like @vote @giff @cap ya cap @y @yar @bingg @bin",
+      {"@ya", "@gif", "@wiki", "@vid", "@bing", "@pic", "@bold", "@imdb", "@coub", "@like", "@vote", "@bingg"});
 };
 
 static void check_bot_command(string str, std::vector<string> expected) {
diff --git a/test/mtproto.cpp b/test/mtproto.cpp
index aaec870f..23ce41b7 100644
--- a/test/mtproto.cpp
+++ b/test/mtproto.cpp
@@ -127,7 +127,7 @@ class TestPingActor : public Actor {
       return stop();
     }
     if (ping_connection_->was_pong()) {
-      LOG(ERROR) << "GOT PONG";
+      LOG(INFO) << "GOT PONG";
       return stop();
     }
   }
diff --git a/test/string_cleaning.cpp b/test/string_cleaning.cpp
index 6fbd8150..6fef9b02 100644
--- a/test/string_cleaning.cpp
+++ b/test/string_cleaning.cpp
@@ -88,8 +88,7 @@ TEST(StringCleaning, strip_empty_characters) {
   check_strip_empty_characters(empty, 1000000, "");
   check_strip_empty_characters(empty + "a", 1000000, empty + "a");
   check_strip_empty_characters(spaces + empty + spaces + "abc" + spaces, 1000000, empty + spaces_replace + "abc");
-  check_strip_empty_characters(spaces + spaces + empty + spaces + spaces + empty + empty, 1000000,
-                               empty + spaces_replace + spaces_replace + empty + empty);
+  check_strip_empty_characters(spaces + spaces + empty + spaces + spaces + empty + empty, 1000000, "");
   check_strip_empty_characters("\r\r\r\r\r\r\r", 1000000, "");
   check_strip_empty_characters("\r\n\r\n\r\n\r\n\r\n\r\n\r", 1000000, "");
   check_strip_empty_characters(Slice(" \t\r\n\0\va\v\0\n\r\t ").str(), 1000000, "a");