added xxhash unit tests (which currently fail)

2 files changed, 46 insertions, 0 deletions

diff --git a/src/zencore/xxhash.cpp b/src/zencore/xxhash.cpp
index 450131d19..ff88a4372 100644
--- a/src/zencore/xxhash.cpp
+++ b/src/zencore/xxhash.cpp
@@ -47,4 +47,45 @@ XXH3_128::ToHexString(StringBuilderBase& OutBuilder) const
 	return OutBuilder;
 }
 
+//////////////////////////////////////////////////////////////////////////
+//
+// Unit tests
+//
+
+#if ZEN_WITH_TESTS
+
+void
+xxhash_forcelink()
+{
+}
+
+TEST_CASE("XXH3_128")
+{
+	using namespace std::literals;
+
+	const std::string_view ShortString{"1234"};
+	const std::string_view LongString{
+		"1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
+		"1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
+		"1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"};
+
+	SUBCASE("short")
+	{
+		XXH3_128Stream x;
+		x.Append(ShortString.data(), ShortString.size());
+		const XXH3_128 Hash = x.GetHash();
+		CHECK(Hash == XXH3_128::FromHexString("0d44dd7fde8ea2b4ba961e1a26f71f21"sv));
+	}
+
+	SUBCASE("long")
+	{
+		XXH3_128Stream x;
+		x.Append(LongString.data(), LongString.size());
+		const XXH3_128 Hash = x.GetHash();
+		CHECK(Hash == XXH3_128::FromHexString("bc408748826fb22da051517c97c9d181"sv));
+	}
+}
+
+#endif
+
 }  // namespace zen
diff --git a/src/zencore/zencore.cpp b/src/zencore/zencore.cpp
index e813a3e6c..db821bff8 100644
--- a/src/zencore/zencore.cpp
+++ b/src/zencore/zencore.cpp
@@ -36,6 +36,10 @@
 
 #include <atomic>
 
+namespace zen {
+extern void xxhash_forcelink();
+}
+
 namespace zen::assert {
 
 void
@@ -264,6 +268,7 @@ zencore_forcelinktests()
 	zen::cbjson_forcelink();
 	zen::cbyaml_forcelink();
 	zen::workthreadpool_forcelink();
+	xxhash_forcelink();
 }
 }  // namespace zen