Issue #178 Fix src/library/diff tests (#262)

Author: tsayukov

src/library/diff/diff.cpp

@@ -12,7 +12,7 @@ struct TCollectionImpl {
     inline bool Consume(const T* b, const T* e, const T*) {
         if (b < e) {
             Words.push_back(std::span<const T>(b, e));
-            Keys.push_back(FnvHash<ui64>((const char*)b, (e - b) * sizeof(T)));
+            Keys.push_back(FnvHash<ui64>(static_cast<const void*>(b), (e - b) * sizeof(T)));
         }
         return true;
     }

src/library/diff/diff.h

@@ -1,15 +1,15 @@
 #pragma once
 
+#include <ydb-cpp-sdk/util/generic/algorithm.h>
+#include <ydb-cpp-sdk/util/stream/output.h>
+
 #include <src/library/lcs/lcs_via_lis.h>
 
-#include <ydb-cpp-sdk/util/generic/algorithm.h>
+#include <src/util/string/split.h>
 
 #include <string_view>
 #include <span>
 
-#include <ydb-cpp-sdk/util/stream/output.h>
-#include <src/util/string/split.h>
-
 namespace NDiff {
     template <typename T>
     struct TChunk {

src/library/diff/ut/ya.make

@@ -4,10 +4,11 @@ add_subdirectory(cgiparam)
 add_subdirectory(charset)
 add_subdirectory(containers)
 add_subdirectory(coroutine)
+add_subdirectory(dbg_output)
+add_subdirectory(diff)
+add_subdirectory(digest)
 add_subdirectory(json)
 add_subdirectory(login)
 add_subdirectory(operation_id)
 add_subdirectory(testing)
 add_subdirectory(yql)
-add_subdirectory(digest)
-add_subdirectory(dbg_output)

tests/library/CMakeLists.txt

@@ -0,0 +1,9 @@
+add_ydb_test(NAME library-diff-ut
+  SOURCES
+    ut.cpp
+  INCLUDE_DIRS
+    ${YDB_SDK_SOURCE_DIR}/src/library/diff
+  LINK_LIBRARIES
+    library-diff
+    cpp-testing-unittest_main
+)

tests/library/diff/CMakeLists.txt

@@ -5,7 +5,7 @@
 using namespace NDiff;
 
 struct TDiffTester {
-    std::stringStream Res;
+    TStringStream Res;
     std::vector<TChunk<char>> Chunks;
 
     std::string_view Special(const std::string_view& str) const {