Fix tests (#171)

Author: tsayukov

src/library/colorizer/colors.h

@@ -226,3 +226,5 @@ namespace NColorizer {
 
 std::string_view ToStringBuf(NColorizer::EAnsiCode x);
 std::string ToString(NColorizer::EAnsiCode x);
+
+std::ostream& operator<<(std::ostream& os, NColorizer::EAnsiCode x);

src/library/colorizer/output.h

@@ -6,7 +6,7 @@
 // Consider printing elements of `EAnsiCode` directly.
 
 namespace NColorizer {
-    typedef std::string_view (TColors::*TColorFunc)() const;
+    using TColorFunc = std::string_view (TColors::*)() const;
 
     struct TColorHandle {
         const TColors* C;

tests/library/colorizer/ut.cpp

@@ -1,18 +1,18 @@
-#include <src/library/colorizer/colors.h>
+#include "colors.h"
 
-#include <src/library/testing/unittest/registar.h>
 #include <ydb-cpp-sdk/util/stream/str.h>
-
 #include <ydb-cpp-sdk/util/string/escape.h>
 
+#include <src/library/testing/unittest/registar.h>
+
 Y_UNIT_TEST_SUITE(ColorizerTest) {
     Y_UNIT_TEST(BasicTest) {
         NColorizer::TColors colors;
         colors.Enable();
         UNIT_ASSERT_STRINGS_EQUAL(EscapeC(colors.BlueColor()), "\\x1B[22;34m");
         UNIT_ASSERT_STRINGS_EQUAL(EscapeC(colors.ForeBlue()), "\\x1B[34m");
         colors.Disable();
-        UNIT_ASSERT(colors.BlueColor().Empty());
+        UNIT_ASSERT(colors.BlueColor().empty());
     }
 
     Y_UNIT_TEST(ResettingTest) {
@@ -28,24 +28,22 @@ Y_UNIT_TEST_SUITE(ColorizerTest) {
     Y_UNIT_TEST(PrintAnsi) {
         UNIT_ASSERT_STRINGS_EQUAL(EscapeC(ToString(NColorizer::BLUE)), "\\x1B[0m\\x1B[0;34m");
         {
-            std::string str;
-            std::stringOutput sink{str};
+            std::ostringstream sink;
 
             sink << NColorizer::BLUE << "foo!" << NColorizer::RESET;
 
-            UNIT_ASSERT_STRINGS_EQUAL(EscapeC(str), "foo!");  // std::stringOutput is not tty
+            UNIT_ASSERT_STRINGS_EQUAL(EscapeC(sink.str()), "foo!");  // std::ostringstream is not tty
         }
         {
-            std::string str;
-            std::stringOutput sink{str};
+            std::ostringstream sink;
 
             // Enable this for test purposes. If you're making output of the `AutoColors` constant and this
             // test does not compile, you're free to remove it.
             NColorizer::AutoColors(sink).Enable();
 
             sink << NColorizer::BLUE << "foo!" << NColorizer::RESET;
 
-            UNIT_ASSERT_STRINGS_EQUAL(EscapeC(str), "\\x1B[0m\\x1B[0;34mfoo!\\x1B[0m");  // std::stringOutput is not tty
+            UNIT_ASSERT_STRINGS_EQUAL(EscapeC(sink.str()), "\\x1B[0m\\x1B[0;34mfoo!\\x1B[0m");  // std::ostringstream is not tty
         }
     }