janwas
a34b759720
. timer, config: fix definition of ALLOW_RDTSC . add movsx_be64 (for whirlpool), revise implementation, move to byte_order, add test . MAX -> std::max, remove those macros . add timestamp to system_info as requested by philip This was SVN commit r5050.
76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
#include "lib/self_test.h"
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#include "lib/lib.h"
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class TestLib : public CxxTest::TestSuite
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{
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public:
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// 16-bit saturating arithmetic
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void test_addusw()
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{
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TS_ASSERT_EQUALS(addusw(4u, 0x100u), 0x0104u);
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TS_ASSERT_EQUALS(addusw(0u, 0xFFFFu), 0xFFFFu);
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TS_ASSERT_EQUALS(addusw(0x8000u, 0x8000u), 0xFFFFu);
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TS_ASSERT_EQUALS(addusw(0xFFF0u, 0x0004u), 0xFFF4u);
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TS_ASSERT_EQUALS(addusw(0xFFFFu, 0xFFFFu), 0xFFFFu);
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}
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void test_subusw()
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{
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TS_ASSERT_EQUALS(subusw(4u, 0x100u), 0u);
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TS_ASSERT_EQUALS(subusw(100u, 90u), 10u);
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TS_ASSERT_EQUALS(subusw(0x8000u, 0x8000u), 0u);
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TS_ASSERT_EQUALS(subusw(0x0FFFu, 0xFFFFu), 0u);
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TS_ASSERT_EQUALS(subusw(0xFFFFu, 0x0FFFu), 0xF000u);
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}
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void test_hi_lo()
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{
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TS_ASSERT_EQUALS(u64_hi(0x0123456789ABCDEFull), 0x01234567u);
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TS_ASSERT_EQUALS(u64_hi(0x0000000100000002ull), 0x00000001u);
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TS_ASSERT_EQUALS(u64_lo(0x0123456789ABCDEFull), 0x89ABCDEFu);
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TS_ASSERT_EQUALS(u64_lo(0x0000000100000002ull), 0x00000002u);
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TS_ASSERT_EQUALS(u32_hi(0x01234567u), 0x0123u);
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TS_ASSERT_EQUALS(u32_hi(0x00000001u), 0x0000u);
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TS_ASSERT_EQUALS(u32_lo(0x01234567u), 0x4567u);
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TS_ASSERT_EQUALS(u32_lo(0x00000001u), 0x0001u);
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TS_ASSERT_EQUALS(u64_from_u32(0xFFFFFFFFu, 0x80000008u), 0xFFFFFFFF80000008ull);
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TS_ASSERT_EQUALS(u32_from_u16(0x8000u, 0xFFFFu), 0x8000FFFFu);
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}
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// fp_to_u?? already validate the result.
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void test_rand()
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{
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// complain if huge interval or min > max
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debug_skip_next_err(ERR::INVALID_PARAM);
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TS_ASSERT_EQUALS(rand(1, 0), 0);
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debug_skip_next_err(ERR::INVALID_PARAM);
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TS_ASSERT_EQUALS(rand(2, ~0u), 0);
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// returned number must be in [min, max)
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for(int i = 0; i < 100; i++)
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{
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uint min = rand(), max = min+rand();
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uint x = rand(min, max);
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TS_ASSERT(min <= x && x < max);
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}
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// make sure both possible values are hit
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uint ones = 0, twos = 0;
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for(int i = 0; i < 100; i++)
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{
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uint x = rand(1, 3);
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// paranoia: don't use array (x might not be 1 or 2 - checked below)
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if(x == 1) ones++;
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if(x == 2) twos++;
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}
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TS_ASSERT_EQUALS(ones+twos, 100);
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TS_ASSERT(ones > 10 && twos > 10);
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}
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};
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