DEV-41367 resurrect dead bitpack test, convert it to a llcommon integration test.

indra/llcommon/CMakeLists.txt

@@ -242,6 +242,7 @@ LL_ADD_PROJECT_UNIT_TESTS(llcommon "${llcommon_TEST_SOURCE_FILES}")
 #set(TEST_DEBUG on)
 set(test_libs llcommon ${LLCOMMON_LIBRARIES} ${WINDOWS_LIBRARIES})
 LL_ADD_INTEGRATION_TEST(commonmisc "" "${test_libs}")
+LL_ADD_INTEGRATION_TEST(bitpack "" "${test_libs}")
 LL_ADD_INTEGRATION_TEST(llbase64 "" "${test_libs}")
 LL_ADD_INTEGRATION_TEST(lldate "" "${test_libs}")
 LL_ADD_INTEGRATION_TEST(llerror "" "${test_libs}")

indra/llcommon/bitpack.cpp

+/** 
+ * @file bitpack.cpp
+ * @brief LLBitPack class implementation
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+// implementation is all in the header, this include dep ensures the unit test is rerun if the implementation changes.
+#include "bitpack.h"

indra/llcommon/tests/bitpack_test.cpp

+/**
+ * @file bitpack_test.cpp
+ * @author Adroit
+ * @date 2007-02
+ * @brief llstreamtools test cases.
+ *
+ * $LicenseInfo:firstyear=2007&license=viewergpl$
+ * 
+ * Copyright (c) 2007-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+ 
+#include "linden_common.h"
+
+#include "../bitpack.h"
+
+#include "../test/lltut.h"
+
+
+namespace tut
+{
+	struct bit_pack
+	{
+	};
+	typedef test_group<bit_pack> bit_pack_t;
+	typedef bit_pack_t::object bit_pack_object_t;
+	tut::bit_pack_t tut_bit_pack("bitpack");
+
+	// pack -> unpack
+	template<> template<>
+	void bit_pack_object_t::test<1>()
+	{
+		U8 packbuffer[255];
+		U8 unpackbuffer[255];
+		int pack_bufsize = 0;
+		int unpack_bufsize = 0;
+
+		LLBitPack bitpack(packbuffer, 255);
+
+		char str[] = "SecondLife is a 3D virtual world";
+		int len = sizeof(str);
+		pack_bufsize = bitpack.bitPack((U8*) str, len*8);
+		pack_bufsize = bitpack.flushBitPack();
+
+		LLBitPack bitunpack(packbuffer, pack_bufsize*8);
+		unpack_bufsize = bitunpack.bitUnpack(unpackbuffer, len*8);
+		ensure("bitPack: unpack size should be same as string size prior to pack", len == unpack_bufsize);
+		ensure_memory_matches("str->bitPack->bitUnpack should be equal to string", str, len, unpackbuffer, unpack_bufsize); 
+	}
+
+	// pack large, unpack in individual bytes
+	template<> template<>
+	void bit_pack_object_t::test<2>()
+	{
+		U8 packbuffer[255];
+		U8 unpackbuffer[255];
+		int pack_bufsize = 0;
+		int unpack_bufsize = 0;
+
+		LLBitPack bitpack(packbuffer, 255);
+
+		char str[] = "SecondLife";
+		int len = sizeof(str);
+		pack_bufsize = bitpack.bitPack((U8*) str, len*8);
+		pack_bufsize = bitpack.flushBitPack();
+
+		LLBitPack bitunpack(packbuffer, pack_bufsize*8);
+		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		ensure("bitPack: individual unpack: 0", unpackbuffer[0] == (U8) str[0]);
+		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		ensure("bitPack: individual unpack: 1", unpackbuffer[0] == (U8) str[1]);
+		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		ensure("bitPack: individual unpack: 2", unpackbuffer[0] == (U8) str[2]);
+		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		ensure("bitPack: individual unpack: 3", unpackbuffer[0] == (U8) str[3]);
+		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		ensure("bitPack: individual unpack: 4", unpackbuffer[0] == (U8) str[4]);
+		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		ensure("bitPack: individual unpack: 5", unpackbuffer[0] == (U8) str[5]);
+		unpack_bufsize = bitunpack.bitUnpack(unpackbuffer, 8*4); // Life
+		ensure_memory_matches("bitPack: 4 bytes unpack:", unpackbuffer, 4, str+6, 4);
+	}
+
+	// U32 packing
+	template<> template<>
+	void bit_pack_object_t::test<3>()
+	{
+		U8 packbuffer[255];
+		int pack_bufsize = 0;
+
+		LLBitPack bitpack(packbuffer, 255);
+		U32 num = 0x41fab67a;
+		pack_bufsize = bitpack.bitPack((U8*)&num, 8*sizeof(U32));
+		pack_bufsize = bitpack.flushBitPack();
+
+		LLBitPack bitunpack(packbuffer, pack_bufsize*8);
+		U32 res = 0;
+		// since packing and unpacking is done on same machine in the unit test run, 
+		// endianness should not matter
+		bitunpack.bitUnpack((U8*) &res, sizeof(res)*8);
+		ensure("U32->bitPack->bitUnpack->U32 should be equal", num == res); 
+	}
+}