1 files changed, 154 insertions, 0 deletions
diff --git a/sal/qa/rtl/crc32/rtl_crc32.cxx b/sal/qa/rtl/crc32/rtl_crc32.cxx
new file mode 100644
index 000000000..00933b589
--- /dev/null
+++ b/sal/qa/rtl/crc32/rtl_crc32.cxx
@@ -0,0 +1,154 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/types.h>
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/HelperMacros.h>
+#include <cppunit/plugin/TestPlugIn.h>
+
+#include <rtl/crc.h>
+
+namespace rtl_CRC32
+{
+
+class test : public CppUnit::TestFixture
+{
+public:
+
+    // insert your test code here.
+    void rtl_crc32_001()
+    {
+        // this is demonstration code
+        // CPPUNIT_ASSERT_MESSAGE("a message", 1 == 1);
+
+        sal_uInt32 nCRC = 0;
+
+        char buf[] = {0};
+        int num = 0;
+
+        nCRC = rtl_crc32(nCRC, buf, num);
+
+        CPPUNIT_ASSERT_EQUAL_MESSAGE("empty crc buffer", static_cast<sal_uInt32>(0), nCRC);
+    }
+
+    void rtl_crc32_002()
+    {
+        sal_uInt32 nCRC = 0;
+
+        char buf[] = {0,0};
+        int num = sizeof(buf);
+
+        nCRC = rtl_crc32(nCRC, buf, num);
+
+        CPPUNIT_ASSERT_MESSAGE("buffer contain 2 empty bytes, crc is zero", nCRC != 0);
+    }
+
+    void rtl_crc32_002_1()
+    {
+        sal_uInt32 nCRC = 0;
+
+        char buf[] = {0,0,0};
+        int num = sizeof(buf);
+
+        nCRC = rtl_crc32(nCRC, buf, num);
+
+        CPPUNIT_ASSERT_MESSAGE("buffer contain 3 empty bytes, crc is zero", nCRC != 0);
+    }
+
+    /**
+     * crc32 check:
+     * Build checksum on two buffers with same size but different content,
+     * the result (crc32 checksum) must differ
+     */
+
+    void rtl_crc32_003()
+    {
+        sal_uInt32 nCRC1 = 0;
+        char buf1[] = {2};
+        int num1 = sizeof(buf1);
+
+        nCRC1 = rtl_crc32(nCRC1, buf1, num1);
+
+        sal_uInt32 nCRC2 = 0;
+        char buf2[] = {3};
+        int num2 = sizeof(buf2);
+
+        nCRC2 = rtl_crc32(nCRC2, buf2, num2);
+
+        CPPUNIT_ASSERT_MESSAGE("checksum should differ for buf1 and buf2", nCRC1 != nCRC2);
+    }
+
+    /** check if the crc32 only use as much values, as given
+     *
+     */
+    void rtl_crc32_003_1()
+    {
+        sal_uInt32 nCRC1 = 0;
+        char buf1[] = {2,1};
+        int num1 = sizeof(buf1) - 1;
+
+        nCRC1 = rtl_crc32(nCRC1, buf1, num1);
+
+        sal_uInt32 nCRC2 = 0;
+        char buf2[] = {2,2};
+        int num2 = sizeof(buf2) - 1;
+
+        nCRC2 = rtl_crc32(nCRC2, buf2, num2);
+
+        CPPUNIT_ASSERT_EQUAL_MESSAGE("checksum leave it's bounds", nCRC2, nCRC1);
+    }
+
+    /** check if the crc32 differ at same content in reverse order
+     *
+     */
+    void rtl_crc32_003_2()
+    {
+        sal_uInt32 nCRC1 = 0;
+        char buf1[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
+        int num1 = sizeof(buf1);
+
+        nCRC1 = rtl_crc32(nCRC1, buf1, num1);
+
+        sal_uInt32 nCRC2 = 0;
+        char buf2[] = {20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0};
+        int num2 = sizeof(buf2);
+
+        nCRC2 = rtl_crc32(nCRC2, buf2, num2);
+
+        CPPUNIT_ASSERT_MESSAGE("checksum should differ", nCRC1 != nCRC2);
+    }
+
+    // Change the following lines only, if you add, remove or rename
+    // member functions of the current class,
+    // because these macros are need by auto register mechanism.
+
+    CPPUNIT_TEST_SUITE(test);
+    CPPUNIT_TEST(rtl_crc32_001);
+    CPPUNIT_TEST(rtl_crc32_002);
+    CPPUNIT_TEST(rtl_crc32_002_1);
+    CPPUNIT_TEST(rtl_crc32_003);
+    CPPUNIT_TEST(rtl_crc32_003_1);
+    CPPUNIT_TEST(rtl_crc32_003_2);
+    CPPUNIT_TEST_SUITE_END();
+}; // class test
+
+CPPUNIT_TEST_SUITE_REGISTRATION(rtl_CRC32::test);
+} // namespace rtl_CRC32
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */