intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 40 insertions, 0 deletions

diff --git a/library/cpp/packers/ut/region_packer_ut.cpp b/library/cpp/packers/ut/region_packer_ut.cpp
new file mode 100644
index 0000000000..0cb08ccf65
--- /dev/null
+++ b/library/cpp/packers/ut/region_packer_ut.cpp
@@ -0,0 +1,40 @@
+#include "region_packer.h"
+#include <library/cpp/testing/unittest/registar.h>
+
+template <typename TValue>
+void TestPacker() {
+    TValue values[] = {1, 2, 3, 42};
+    TString buffer;
+
+    TRegionPacker<TValue> p;
+
+    using TValues = TArrayRef<TValue>;
+    TValues valueRegion = TValues(values, Y_ARRAY_SIZE(values));
+    size_t sz = p.MeasureLeaf(valueRegion);
+    UNIT_ASSERT_VALUES_EQUAL(sz, 1 + sizeof(values));
+
+    buffer.resize(sz);
+    p.PackLeaf(buffer.begin(), valueRegion, sz);
+    UNIT_ASSERT_VALUES_EQUAL(buffer[0], 4);
+
+    p.UnpackLeaf(buffer.data(), valueRegion);
+    UNIT_ASSERT_EQUAL(valueRegion.data(), (const TValue*)(buffer.begin() + 1));
+    UNIT_ASSERT_EQUAL(valueRegion.size(), Y_ARRAY_SIZE(values));
+    UNIT_ASSERT_EQUAL(0, memcmp(values, valueRegion.data(), sizeof(values)));
+}
+
+Y_UNIT_TEST_SUITE(RegionPacker) {
+    Y_UNIT_TEST(Test0) {
+        TestPacker<char>();
+        TestPacker<signed char>();
+        TestPacker<unsigned char>();
+        TestPacker<i8>();
+        TestPacker<ui8>();
+        TestPacker<i16>();
+        TestPacker<ui16>();
+        TestPacker<i32>();
+        TestPacker<ui32>();
+        TestPacker<i64>();
+        TestPacker<ui64>();
+    }
+}