1 files changed, 42 insertions, 0 deletions
diff --git a/library/cpp/protobuf/json/ut/util_ut.cpp b/library/cpp/protobuf/json/ut/util_ut.cpp
new file mode 100644
index 0000000000..05101dca28
--- /dev/null
+++ b/library/cpp/protobuf/json/ut/util_ut.cpp
@@ -0,0 +1,42 @@
+#include <library/cpp/protobuf/json/util.h>
+
+#include <library/cpp/testing/unittest/registar.h>
+
+using namespace NProtobufJson;
+
+Y_UNIT_TEST_SUITE(TEqualsTest) {
+    Y_UNIT_TEST(TestEmpty) {
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("", ""));
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("", "_"));
+        UNIT_ASSERT(!EqualsIgnoringCaseAndUnderscores("f", ""));
+    }
+
+    Y_UNIT_TEST(TestTrivial) {
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("f", "f"));
+        UNIT_ASSERT(!EqualsIgnoringCaseAndUnderscores("f", "o"));
+        UNIT_ASSERT(!EqualsIgnoringCaseAndUnderscores("fo", "f"));
+        UNIT_ASSERT(!EqualsIgnoringCaseAndUnderscores("f", "fo"));
+        UNIT_ASSERT(!EqualsIgnoringCaseAndUnderscores("bar", "baz"));
+    }
+
+    Y_UNIT_TEST(TestUnderscores) {
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("foo_bar", "foobar"));
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("foo_bar_", "foobar"));
+        UNIT_ASSERT(!EqualsIgnoringCaseAndUnderscores("foo_bar_z", "foobar"));
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("foo__bar__", "foobar"));
+        UNIT_ASSERT(!EqualsIgnoringCaseAndUnderscores("foo__bar__z", "foobar"));
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("_foo_bar", "foobar"));
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("_foo_bar_", "foobar"));
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("_foo_bar_", "foo___bar"));
+    }
+
+    Y_UNIT_TEST(TestCase) {
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("foo_bar", "FOO_BAR"));
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("foobar", "fooBar"));
+    }
+
+    Y_UNIT_TEST(TestCaseAndUnderscores) {
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("fooBar", "FOO_BAR"));
+        UNIT_ASSERT(EqualsIgnoringCaseAndUnderscores("FOO_BAR_BAZ", "fooBar_BAZ"));
+    }
+}