zlib: add

Signed-off-by: Simon Rozman <simon@rozman.si>

UnitTests/zlib.cpp

@@ -0,0 +1,40 @@
+/*
+	SPDX-License-Identifier: MIT
+	Copyright © 2024 Amebis
+*/
+
+#include "pch.hpp"
+
+using namespace std;
+#ifdef _WIN32
+using namespace Microsoft::VisualStudio::CppUnitTestFramework;
+#endif
+
+namespace UnitTests
+{
+	TEST_CLASS(hash)
+	{
+	public:
+		TEST_METHOD(zlib)
+		{
+			static const char inflated[] = "This is a test.";
+			stdex::stream::memory_file dat_deflated;
+			{
+				stdex::zlib_writer zlib(dat_deflated, 9, 4);
+				zlib.write(inflated, sizeof(inflated) - sizeof(*inflated));
+			}
+			static const uint8_t deflated[] = { 0x78, 0xda, 0x0b, 0xc9, 0xc8, 0x2c, 0x56, 0x00, 0xa2, 0x44, 0x85, 0x92, 0xd4, 0xe2, 0x12, 0x3d, 0x00, 0x29, 0x97, 0x05, 0x24 };
+			Assert::AreEqual(sizeof(deflated), dat_deflated.size());
+			Assert::AreEqual(0, memcmp(deflated, dat_deflated.data(), sizeof(deflated)));
+
+			dat_deflated.seekbeg(0);
+			stdex::stream::memory_file dat_inflated;
+			{
+				stdex::zlib_reader zlib(dat_deflated, 3);
+				dat_inflated.write_stream(zlib);
+			}
+			Assert::AreEqual(sizeof(inflated) - sizeof(*inflated), dat_inflated.size());
+			Assert::AreEqual(0, memcmp(inflated, dat_inflated.data(), sizeof(inflated) - sizeof(*inflated)));
+		}
+	};
+}