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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/test/test-unaligned.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/test-unaligned.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/src/test/test-unaligned.c b/src/test/test-unaligned.c new file mode 100644 index 0000000..728c193 --- /dev/null +++ b/src/test/test-unaligned.c @@ -0,0 +1,168 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "memory-util.h" +#include "sparse-endian.h" +#include "tests.h" +#include "unaligned.h" + +static uint8_t data[] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, +}; + +TEST(be) { + uint8_t scratch[16]; + + assert_se(unaligned_read_be16(&data[0]) == 0x0001); + assert_se(unaligned_read_be16(&data[1]) == 0x0102); + + assert_se(unaligned_read_be32(&data[0]) == 0x00010203); + assert_se(unaligned_read_be32(&data[1]) == 0x01020304); + assert_se(unaligned_read_be32(&data[2]) == 0x02030405); + assert_se(unaligned_read_be32(&data[3]) == 0x03040506); + + assert_se(unaligned_read_be64(&data[0]) == 0x0001020304050607); + assert_se(unaligned_read_be64(&data[1]) == 0x0102030405060708); + assert_se(unaligned_read_be64(&data[2]) == 0x0203040506070809); + assert_se(unaligned_read_be64(&data[3]) == 0x030405060708090a); + assert_se(unaligned_read_be64(&data[4]) == 0x0405060708090a0b); + assert_se(unaligned_read_be64(&data[5]) == 0x05060708090a0b0c); + assert_se(unaligned_read_be64(&data[6]) == 0x060708090a0b0c0d); + assert_se(unaligned_read_be64(&data[7]) == 0x0708090a0b0c0d0e); + + zero(scratch); + unaligned_write_be16(&scratch[0], 0x0001); + assert_se(memcmp(&scratch[0], &data[0], sizeof(uint16_t)) == 0); + zero(scratch); + unaligned_write_be16(&scratch[1], 0x0102); + assert_se(memcmp(&scratch[1], &data[1], sizeof(uint16_t)) == 0); + + zero(scratch); + unaligned_write_be32(&scratch[0], 0x00010203); + assert_se(memcmp(&scratch[0], &data[0], sizeof(uint32_t)) == 0); + zero(scratch); + unaligned_write_be32(&scratch[1], 0x01020304); + assert_se(memcmp(&scratch[1], &data[1], sizeof(uint32_t)) == 0); + zero(scratch); + unaligned_write_be32(&scratch[2], 0x02030405); + assert_se(memcmp(&scratch[2], &data[2], sizeof(uint32_t)) == 0); + zero(scratch); + unaligned_write_be32(&scratch[3], 0x03040506); + assert_se(memcmp(&scratch[3], &data[3], sizeof(uint32_t)) == 0); + + zero(scratch); + unaligned_write_be64(&scratch[0], 0x0001020304050607); + assert_se(memcmp(&scratch[0], &data[0], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_be64(&scratch[1], 0x0102030405060708); + assert_se(memcmp(&scratch[1], &data[1], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_be64(&scratch[2], 0x0203040506070809); + assert_se(memcmp(&scratch[2], &data[2], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_be64(&scratch[3], 0x030405060708090a); + assert_se(memcmp(&scratch[3], &data[3], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_be64(&scratch[4], 0x0405060708090a0b); + assert_se(memcmp(&scratch[4], &data[4], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_be64(&scratch[5], 0x05060708090a0b0c); + assert_se(memcmp(&scratch[5], &data[5], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_be64(&scratch[6], 0x060708090a0b0c0d); + assert_se(memcmp(&scratch[6], &data[6], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_be64(&scratch[7], 0x0708090a0b0c0d0e); + assert_se(memcmp(&scratch[7], &data[7], sizeof(uint64_t)) == 0); +} + +TEST(le) { + uint8_t scratch[16]; + + assert_se(unaligned_read_le16(&data[0]) == 0x0100); + assert_se(unaligned_read_le16(&data[1]) == 0x0201); + + assert_se(unaligned_read_le32(&data[0]) == 0x03020100); + assert_se(unaligned_read_le32(&data[1]) == 0x04030201); + assert_se(unaligned_read_le32(&data[2]) == 0x05040302); + assert_se(unaligned_read_le32(&data[3]) == 0x06050403); + + assert_se(unaligned_read_le64(&data[0]) == 0x0706050403020100); + assert_se(unaligned_read_le64(&data[1]) == 0x0807060504030201); + assert_se(unaligned_read_le64(&data[2]) == 0x0908070605040302); + assert_se(unaligned_read_le64(&data[3]) == 0x0a09080706050403); + assert_se(unaligned_read_le64(&data[4]) == 0x0b0a090807060504); + assert_se(unaligned_read_le64(&data[5]) == 0x0c0b0a0908070605); + assert_se(unaligned_read_le64(&data[6]) == 0x0d0c0b0a09080706); + assert_se(unaligned_read_le64(&data[7]) == 0x0e0d0c0b0a090807); + + zero(scratch); + unaligned_write_le16(&scratch[0], 0x0100); + assert_se(memcmp(&scratch[0], &data[0], sizeof(uint16_t)) == 0); + zero(scratch); + unaligned_write_le16(&scratch[1], 0x0201); + assert_se(memcmp(&scratch[1], &data[1], sizeof(uint16_t)) == 0); + + zero(scratch); + unaligned_write_le32(&scratch[0], 0x03020100); + + assert_se(memcmp(&scratch[0], &data[0], sizeof(uint32_t)) == 0); + zero(scratch); + unaligned_write_le32(&scratch[1], 0x04030201); + assert_se(memcmp(&scratch[1], &data[1], sizeof(uint32_t)) == 0); + zero(scratch); + unaligned_write_le32(&scratch[2], 0x05040302); + assert_se(memcmp(&scratch[2], &data[2], sizeof(uint32_t)) == 0); + zero(scratch); + unaligned_write_le32(&scratch[3], 0x06050403); + assert_se(memcmp(&scratch[3], &data[3], sizeof(uint32_t)) == 0); + + zero(scratch); + unaligned_write_le64(&scratch[0], 0x0706050403020100); + assert_se(memcmp(&scratch[0], &data[0], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_le64(&scratch[1], 0x0807060504030201); + assert_se(memcmp(&scratch[1], &data[1], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_le64(&scratch[2], 0x0908070605040302); + assert_se(memcmp(&scratch[2], &data[2], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_le64(&scratch[3], 0x0a09080706050403); + assert_se(memcmp(&scratch[3], &data[3], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_le64(&scratch[4], 0x0B0A090807060504); + assert_se(memcmp(&scratch[4], &data[4], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_le64(&scratch[5], 0x0c0b0a0908070605); + assert_se(memcmp(&scratch[5], &data[5], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_le64(&scratch[6], 0x0d0c0b0a09080706); + assert_se(memcmp(&scratch[6], &data[6], sizeof(uint64_t)) == 0); + zero(scratch); + unaligned_write_le64(&scratch[7], 0x0e0d0c0b0a090807); + assert_se(memcmp(&scratch[7], &data[7], sizeof(uint64_t)) == 0); +} + +TEST(ne) { + uint16_t x = 4711; + uint32_t y = 123456; + uint64_t z = 9876543210; + + /* Note that we don't bother actually testing alignment issues in this function, after all the _ne() functions + * are just aliases for the _le() or _be() implementations, which we test extensively above. Hence, in this + * function, just ensure that they map to the right version on the local architecture. */ + + assert_se(unaligned_read_ne16(&x) == 4711); + assert_se(unaligned_read_ne32(&y) == 123456); + assert_se(unaligned_read_ne64(&z) == 9876543210); + + unaligned_write_ne16(&x, 1); + unaligned_write_ne32(&y, 2); + unaligned_write_ne64(&z, 3); + + assert_se(x == 1); + assert_se(y == 2); + assert_se(z == 3); +} + +DEFINE_TEST_MAIN(LOG_INFO); |