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-rw-r--r--3rdparty/bx/tests/hash_test.cpp79
1 files changed, 79 insertions, 0 deletions
diff --git a/3rdparty/bx/tests/hash_test.cpp b/3rdparty/bx/tests/hash_test.cpp
new file mode 100644
index 00000000000..8fbc542af94
--- /dev/null
+++ b/3rdparty/bx/tests/hash_test.cpp
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2010-2017 Branimir Karadzic. All rights reserved.
+ * License: https://github.com/bkaradzic/bx#license-bsd-2-clause
+ */
+
+#include "test.h"
+#include <bx/hash.h>
+
+void makeCrcTable(uint32_t _poly)
+{
+ for (uint32_t ii = 0; ii < 256; ++ii)
+ {
+ uint32_t crc = ii;
+ for (uint32_t jj = 0; jj < 8; ++jj)
+ {
+ if (1 == (crc & 1) )
+ {
+ crc = (crc >> 1) ^ _poly;
+ }
+ else
+ {
+ crc >>= 1;
+ }
+ }
+
+ printf("0x%08x,%c", crc, 7 == (ii & 7) ? '\n' : ' ');
+ }
+}
+
+struct HashTest
+{
+ uint32_t crc32;
+ uint32_t adler32;
+ const char* input;
+};
+
+const HashTest s_hashTest[] =
+{
+ { 0, 1, "" },
+ { 0xe8b7be43, 0x00620062, "a" },
+ { 0x9e83486d, 0x012600c4, "ab" },
+ { 0xc340daab, 0x06060205, "abvgd" },
+ { 0x07642fe2, 0x020a00d6, "1389" },
+ { 0x26d75737, 0x04530139, "555333" },
+};
+
+TEST_CASE("HashCrc32", "")
+{
+#if 0
+ makeCrcTable(0xedb88320);
+ printf("\n");
+ makeCrcTable(0x82f63b78);
+ printf("\n");
+ makeCrcTable(0xeb31d82e);
+#endif // 0
+
+ for (uint32_t ii = 0; ii < BX_COUNTOF(s_hashTest); ++ii)
+ {
+ const HashTest& test = s_hashTest[ii];
+
+ bx::HashCrc32 hash;
+ hash.begin();
+ hash.add(test.input, bx::strLen(test.input) );
+ REQUIRE(test.crc32 == hash.end() );
+ }
+}
+
+TEST_CASE("HashAdler32", "")
+{
+ for (uint32_t ii = 0; ii < BX_COUNTOF(s_hashTest); ++ii)
+ {
+ const HashTest& test = s_hashTest[ii];
+
+ bx::HashAdler32 hash;
+ hash.begin();
+ hash.add(test.input, bx::strLen(test.input) );
+ REQUIRE(test.adler32 == hash.end() );
+ }
+}