intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 52 insertions, 0 deletions

diff --git a/library/cpp/yt/string/unittests/string_ut.cpp b/library/cpp/yt/string/unittests/string_ut.cpp
new file mode 100644
index 0000000000..3e12312af0
--- /dev/null
+++ b/library/cpp/yt/string/unittests/string_ut.cpp
@@ -0,0 +1,52 @@
+#include <library/cpp/testing/gtest/gtest.h>
+
+#include <library/cpp/yt/string/string.h>
+
+namespace NYT {
+namespace {
+
+////////////////////////////////////////////////////////////////////////////////
+
+struct TTestCase
+{
+    const char* UnderCase;
+    const char* CamelCase;
+};
+
+static std::vector<TTestCase> TestCases {
+    { "kenny", "Kenny" },
+    { "south_park", "SouthPark" },
+    { "a", "A" },
+    { "a_b_c", "ABC" },
+    { "reed_solomon_6_3", "ReedSolomon_6_3" },
+    { "lrc_12_2_2", "Lrc_12_2_2" },
+    { "0", "0" },
+    { "0_1_2", "0_1_2" },
+    { "int64", "Int64" }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+TEST(TStringTest, UnderscoreCaseToCamelCase)
+{
+    for (const auto& testCase : TestCases) {
+        auto result = UnderscoreCaseToCamelCase(testCase.UnderCase);
+        EXPECT_STREQ(testCase.CamelCase, result.c_str())
+            << "Original: \"" << testCase.UnderCase << '"';
+    }
+}
+
+TEST(TStringTest, CamelCaseToUnderscoreCase)
+{
+    for (const auto& testCase : TestCases) {
+        auto result = CamelCaseToUnderscoreCase(testCase.CamelCase);
+        EXPECT_STREQ(testCase.UnderCase, result.c_str())
+            << "Original: \"" << testCase.CamelCase << '"';
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace
+} // namespace NYT
+