mirror/openmw-tes3mp
1
0
Fork 1
mirror of https://github.com/TES3MP/openmw-tes3mp.git synced 2025-01-30 16:45:33 +00:00
Code Issues Releases Wiki Activity

Add unit test for swapEndiannessInplace(). Part of Bug #5837

Browse source
This commit is contained in:
Sergey Fukanchik 2021-02-09 13:09:36 -05:00
parent e2ec3b0db7
commit f3271cb66b
3 changed files with 124 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
apps/openmw_test_suite/CMakeLists.txt
View file

@ -15,6 +15,7 @@ if (GTEST_FOUND AND GMOCK_FOUND)
esm/test_fixed_string.cpp
misc/test_stringops.cpp
misc/test_endianness.cpp
nifloader/testbulletnifloader.cpp

122
apps/openmw_test_suite/misc/test_endianness.cpp Normal file
View file

@ -0,0 +1,122 @@
#include <gtest/gtest.h>
#include "components/misc/endianness.hpp"
struct EndiannessTest : public ::testing::Test {};
TEST_F(EndiannessTest, test_swap_endianness_inplace1)
{
uint8_t zero=0x00;
uint8_t ff=0xFF;
uint8_t fortytwo=0x42;
uint8_t half=128;
Misc::swapEndiannessInplace(zero);
EXPECT_EQ(zero, 0x00);
Misc::swapEndiannessInplace(ff);
EXPECT_EQ(ff, 0xFF);
Misc::swapEndiannessInplace(fortytwo);
EXPECT_EQ(fortytwo, 0x42);
Misc::swapEndiannessInplace(half);
EXPECT_EQ(half, 128);
}
TEST_F(EndiannessTest, test_swap_endianness_inplace2)
{
uint16_t zero = 0x0000;
uint16_t ffff = 0xFFFF;
uint16_t n12 = 0x0102;
uint16_t fortytwo = 0x0042;
Misc::swapEndiannessInplace(zero);
EXPECT_EQ(zero, 0x0000);
Misc::swapEndiannessInplace(zero);
EXPECT_EQ(zero, 0x0000);
Misc::swapEndiannessInplace(ffff);
EXPECT_EQ(ffff, 0xFFFF);
Misc::swapEndiannessInplace(ffff);
EXPECT_EQ(ffff, 0xFFFF);
Misc::swapEndiannessInplace(n12);
EXPECT_EQ(n12, 0x0201);
Misc::swapEndiannessInplace(n12);
EXPECT_EQ(n12, 0x0102);
Misc::swapEndiannessInplace(fortytwo);
EXPECT_EQ(fortytwo, 0x4200);
Misc::swapEndiannessInplace(fortytwo);
EXPECT_EQ(fortytwo, 0x0042);
}
TEST_F(EndiannessTest, test_swap_endianness_inplace4)
{
uint32_t zero = 0x00000000;
uint32_t n1234 = 0x01020304;
uint32_t ffff = 0xFFFFFFFF;
Misc::swapEndiannessInplace(zero);
EXPECT_EQ(zero, 0x00000000);
Misc::swapEndiannessInplace(zero);
EXPECT_EQ(zero, 0x00000000);
Misc::swapEndiannessInplace(n1234);
EXPECT_EQ(n1234, 0x04030201);
Misc::swapEndiannessInplace(n1234);
EXPECT_EQ(n1234, 0x01020304);
Misc::swapEndiannessInplace(ffff);
EXPECT_EQ(ffff, 0xFFFFFFFF);
Misc::swapEndiannessInplace(ffff);
EXPECT_EQ(ffff, 0xFFFFFFFF);
}
TEST_F(EndiannessTest, test_swap_endianness_inplace8)
{
uint64_t zero = 0x0000'0000'0000'0000;
uint64_t n1234 = 0x0102'0304'0506'0708;
uint64_t ffff = 0xFFFF'FFFF'FFFF'FFFF;
Misc::swapEndiannessInplace(zero);
EXPECT_EQ(zero, 0x0000'0000'0000'0000);
Misc::swapEndiannessInplace(zero);
EXPECT_EQ(zero, 0x0000'0000'0000'0000);
Misc::swapEndiannessInplace(ffff);
EXPECT_EQ(ffff, 0xFFFF'FFFF'FFFF'FFFF);
Misc::swapEndiannessInplace(ffff);
EXPECT_EQ(ffff, 0xFFFF'FFFF'FFFF'FFFF);
Misc::swapEndiannessInplace(n1234);
EXPECT_EQ(n1234, 0x0807'0605'0403'0201);
Misc::swapEndiannessInplace(n1234);
EXPECT_EQ(n1234, 0x0102'0304'0506'0708);
}
TEST_F(EndiannessTest, test_swap_endianness_inplace_float)
{
const uint32_t original = 0x4023d70a;
const uint32_t expected = 0x0ad72340;
float number;
memcpy(&number, &original, sizeof(original));
Misc::swapEndiannessInplace(number);
EXPECT_TRUE(!memcmp(&number, &expected, sizeof(expected)));
}
TEST_F(EndiannessTest, test_swap_endianness_inplace_double)
{
const uint64_t original = 0x040047ae147ae147ul;
const uint64_t expected = 0x47e17a14ae470004ul;
double number;
memcpy(&number, &original, sizeof(original));
Misc::swapEndiannessInplace(number);
EXPECT_TRUE(!memcmp(&number, &expected, sizeof(expected)) );
}

2
components/misc/endianness.hpp
View file

@ -26,7 +26,7 @@ namespace Misc
{
uint32_t v32;
std::memcpy(&v32, &v, sizeof(T));
v32 = (v32 >> 24) | ((v32 >> 8) & 0xff00) | ((v32 & 0xff00) << 8) | v32 << 24;
v32 = (v32 >> 24) | ((v32 >> 8) & 0xff00) | ((v32 & 0xff00) << 8) | (v32 << 24);
std::memcpy(&v, &v32, sizeof(T));
}
if constexpr (sizeof(T) == 8)