[ugc] Binary SerDes. (#6577)

* [ugc] Binary SerDes.

* Review fixes.

3 files changed, 108 insertions, 0 deletions

diff --git a/ugc/ugc_tests/CMakeLists.txt b/ugc/ugc_tests/CMakeLists.txt
index 825c4205be..20d7d9b610 100644
--- a/ugc/ugc_tests/CMakeLists.txt
+++ b/ugc/ugc_tests/CMakeLists.txt
@@ -5,9 +5,11 @@ include_directories(${OMIM_ROOT}/3party/jansson/src)
 set(
   SRC
   serdes_tests.cpp
+  serdes_binary_tests.cpp
 )
 
 omim_add_test(${PROJECT_NAME} ${SRC})
+
 omim_link_libraries(
   ${PROJECT_NAME}
   ugc
diff --git a/ugc/ugc_tests/serdes_binary_tests.cpp b/ugc/ugc_tests/serdes_binary_tests.cpp
new file mode 100644
index 0000000000..b0266d873e
--- /dev/null
+++ b/ugc/ugc_tests/serdes_binary_tests.cpp
@@ -0,0 +1,105 @@
+#include "testing/testing.hpp"
+
+#include "ugc/api.hpp"
+#include "ugc/binary/serdes.hpp"
+#include "ugc/binary/ugc_holder.hpp"
+#include "ugc/types.hpp"
+
+#include <cstdint>
+#include <vector>
+
+using namespace std;
+using namespace ugc::binary;
+using namespace ugc;
+
+namespace
+{
+vector<TranslationKey> const GetExpectedTranslationKeys()
+{
+  vector<TranslationKey> keys = {
+      {"food", "service", "music", "best-drink", "best-meal", "Coffee", "Cherry Pie"}};
+  sort(keys.begin(), keys.end());
+  return keys;
+}
+
+void CollectTexts(UGC const & ugc, vector<Text> & texts)
+{
+  for (auto const & review : ugc.m_reviews)
+    texts.emplace_back(review.m_text);
+}
+
+void CollectTexts(vector<IndexUGC> const & ugcs, vector<vector<Text>> & texts)
+{
+  for (auto const & ugc : ugcs)
+  {
+    texts.emplace_back();
+    CollectTexts(ugc.m_ugc, texts.back());
+  }
+}
+
+UNIT_TEST(TranslationKeys_Smoke)
+{
+  UGCHolder holder;
+  holder.Add(0 /* index */, Api::MakeTestUGC1());
+  holder.Add(1 /* index */, Api::MakeTestUGC2());
+
+  vector<vector<Text>> texts;
+  CollectTexts(holder.m_ugcs, texts);
+
+  UGCSeriaizer serializer(move(holder.m_ugcs));
+
+  TEST_EQUAL(GetExpectedTranslationKeys(), serializer.GetTranslationKeys(), ());
+  TEST_EQUAL(texts, serializer.GetTexts(), ());
+}
+
+UNIT_TEST(BinarySerDes_Smoke)
+{
+  vector<uint8_t> buffer;
+
+  using Sink = MemWriter<decltype(buffer)>;
+
+  auto const expectedUGC1 = Api::MakeTestUGC1(Time(chrono::hours(24 * 123)));
+  auto const expectedUGC2 = Api::MakeTestUGC2(Time(chrono::hours(24 * 456)));
+
+  {
+    UGCHolder holder;
+    holder.Add(31337 /* index */, expectedUGC1);
+    holder.Add(12345 /* index */, expectedUGC2);
+
+    Sink sink(buffer);
+    UGCSeriaizer ser(move(holder.m_ugcs));
+    TEST_EQUAL(GetExpectedTranslationKeys(), ser.GetTranslationKeys(), ());
+    ser.Serialize(sink);
+  }
+
+  UGCDeserializerV0 des;
+
+  {
+    MemReader reader(buffer.data(), buffer.size());
+
+    TEST(des.GetTranslationKeys().empty(), ());
+    des.InitializeIfNeeded(reader);
+    TEST_EQUAL(GetExpectedTranslationKeys(), des.GetTranslationKeys(), ());
+
+    UGC ugc;
+    TEST(!des.Deserialize(reader, 0 /* index */, ugc), ());
+
+    TEST(des.Deserialize(reader, 12345 /* index */, ugc), ());
+    TEST_EQUAL(ugc, expectedUGC2, ());
+
+    TEST(des.Deserialize(reader, 31337 /* index */, ugc), ());
+    TEST_EQUAL(ugc, expectedUGC1, ());
+  }
+
+  {
+    MemReader reader(buffer.data(), buffer.size());
+
+    UGC ugc;
+    TEST(des.Deserialize(reader, 31337 /* index */, ugc), ());
+    TEST_EQUAL(ugc, expectedUGC1, ());
+
+    TEST(des.Deserialize(reader, 12345 /* index */, ugc), ());
+    TEST_EQUAL(ugc, expectedUGC2, ());
+  }
+}
+}  // namespace
diff --git a/ugc/ugc_tests/ugc_tests.pro b/ugc/ugc_tests/ugc_tests.pro
index 3ae6cb62de..588d99c7bc 100644
--- a/ugc/ugc_tests/ugc_tests.pro
+++ b/ugc/ugc_tests/ugc_tests.pro
@@ -20,4 +20,5 @@ QT *= core
 
 SOURCES += \
   ../../testing/testingmain.cpp \
+  serdes_binary_tests.cpp \
   serdes_tests.cpp \