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Diffstat (limited to '')
| -rw-r--r-- | src/test/test-memory-util.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/test/test-memory-util.c b/src/test/test-memory-util.c new file mode 100644 index 0000000..cd4b64a --- /dev/null +++ b/src/test/test-memory-util.c @@ -0,0 +1,125 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "memory-util.h" +#include "tests.h" + +TEST(eqzero) { + const uint32_t zeros[] = {0, 0, 0}; + const uint32_t ones[] = {1, 1}; + const uint32_t mixed[] = {0, 1, 0, 0, 0}; + const uint8_t longer[] = {[55] = 255}; + + assert_se(eqzero(zeros)); + assert_se(!eqzero(ones)); + assert_se(!eqzero(mixed)); + assert_se(!eqzero(longer)); +} + +static void my_destructor(struct iovec *iov, size_t n) { + /* not really a destructor, just something we can use to check if the destruction worked */ + memset(iov, 'y', sizeof(struct iovec) * n); +} + +TEST(cleanup_array) { + struct iovec *iov, *saved_iov; + size_t n, saved_n; + + n = 7; + iov = new(struct iovec, n); + assert_se(iov); + + memset(iov, 'x', sizeof(struct iovec) * n); + + saved_iov = iov; + saved_n = n; + + { + assert_se(memeqbyte('x', saved_iov, sizeof(struct iovec) * saved_n)); + assert_se(iov); + assert_se(n > 0); + + CLEANUP_ARRAY(iov, n, my_destructor); + + assert_se(memeqbyte('x', saved_iov, sizeof(struct iovec) * saved_n)); + assert_se(iov); + assert_se(n > 0); + } + + assert_se(memeqbyte('y', saved_iov, sizeof(struct iovec) * saved_n)); + assert_se(!iov); + assert_se(n == 0); + + free(saved_iov); +} + +TEST(page_align) { + assert_se(PAGE_ALIGN(page_size() - 1) == page_size()); + assert_se(PAGE_ALIGN(page_size() ) == page_size()); + assert_se(PAGE_ALIGN(page_size() + 1) == page_size() * 2); + assert_se(PAGE_ALIGN(page_size() * 123 - 1) == page_size() * 123); + assert_se(PAGE_ALIGN(page_size() * 123 ) == page_size() * 123); + assert_se(PAGE_ALIGN(page_size() * 123 + 1) == page_size() * 124); + assert_se(PAGE_ALIGN(SIZE_MAX - page_size() - 1) == SIZE_MAX - page_size() + 1); + assert_se(PAGE_ALIGN(SIZE_MAX - page_size() ) == SIZE_MAX - page_size() + 1); + assert_se(PAGE_ALIGN(SIZE_MAX - page_size() + 1) == SIZE_MAX - page_size() + 1); + assert_se(PAGE_ALIGN(SIZE_MAX - page_size() + 2) == SIZE_MAX); /* overflow */ + assert_se(PAGE_ALIGN(SIZE_MAX) == SIZE_MAX); /* overflow */ + + assert_se(PAGE_ALIGN_U64(page_size() - 1) == page_size()); + assert_se(PAGE_ALIGN_U64(page_size() ) == page_size()); + assert_se(PAGE_ALIGN_U64(page_size() + 1) == page_size() * 2); + assert_se(PAGE_ALIGN_U64(page_size() * 123 - 1) == page_size() * 123); + assert_se(PAGE_ALIGN_U64(page_size() * 123 ) == page_size() * 123); + assert_se(PAGE_ALIGN_U64(page_size() * 123 + 1) == page_size() * 124); + assert_se(PAGE_ALIGN_U64(UINT64_MAX - page_size() - 1) == UINT64_MAX - page_size() + 1); + assert_se(PAGE_ALIGN_U64(UINT64_MAX - page_size() ) == UINT64_MAX - page_size() + 1); + assert_se(PAGE_ALIGN_U64(UINT64_MAX - page_size() + 1) == UINT64_MAX - page_size() + 1); + assert_se(PAGE_ALIGN_U64(UINT64_MAX - page_size() + 2) == UINT64_MAX); /* overflow */ + assert_se(PAGE_ALIGN_U64(UINT64_MAX) == UINT64_MAX); /* overflow */ + + assert_se(PAGE_ALIGN_DOWN(page_size() - 1) == 0); + assert_se(PAGE_ALIGN_DOWN(page_size() ) == page_size()); + assert_se(PAGE_ALIGN_DOWN(page_size() + 1) == page_size()); + assert_se(PAGE_ALIGN_DOWN(page_size() * 123 - 1) == page_size() * 122); + assert_se(PAGE_ALIGN_DOWN(page_size() * 123 ) == page_size() * 123); + assert_se(PAGE_ALIGN_DOWN(page_size() * 123 + 1) == page_size() * 123); + assert_se(PAGE_ALIGN_DOWN(SIZE_MAX - page_size() - 1) == SIZE_MAX - page_size() * 2 + 1); + assert_se(PAGE_ALIGN_DOWN(SIZE_MAX - page_size() ) == SIZE_MAX - page_size() * 2 + 1); + assert_se(PAGE_ALIGN_DOWN(SIZE_MAX - page_size() + 1) == SIZE_MAX - page_size() + 1); + assert_se(PAGE_ALIGN_DOWN(SIZE_MAX - page_size() + 2) == SIZE_MAX - page_size() + 1); + + assert_se(PAGE_ALIGN_DOWN_U64(page_size() - 1) == 0); + assert_se(PAGE_ALIGN_DOWN_U64(page_size() ) == page_size()); + assert_se(PAGE_ALIGN_DOWN_U64(page_size() + 1) == page_size()); + assert_se(PAGE_ALIGN_DOWN_U64(page_size() * 123 - 1) == page_size() * 122); + assert_se(PAGE_ALIGN_DOWN_U64(page_size() * 123 ) == page_size() * 123); + assert_se(PAGE_ALIGN_DOWN_U64(page_size() * 123 + 1) == page_size() * 123); + assert_se(PAGE_ALIGN_DOWN_U64(SIZE_MAX - page_size() - 1) == SIZE_MAX - page_size() * 2 + 1); + assert_se(PAGE_ALIGN_DOWN_U64(SIZE_MAX - page_size() ) == SIZE_MAX - page_size() * 2 + 1); + assert_se(PAGE_ALIGN_DOWN_U64(SIZE_MAX - page_size() + 1) == SIZE_MAX - page_size() + 1); + assert_se(PAGE_ALIGN_DOWN_U64(SIZE_MAX - page_size() + 2) == SIZE_MAX - page_size() + 1); + + assert_se(PAGE_OFFSET(page_size() - 1) == page_size() - 1); + assert_se(PAGE_OFFSET(page_size() ) == 0); + assert_se(PAGE_OFFSET(page_size() + 1) == 1); + assert_se(PAGE_OFFSET(page_size() * 123 - 1) == page_size() - 1); + assert_se(PAGE_OFFSET(page_size() * 123 ) == 0); + assert_se(PAGE_OFFSET(page_size() * 123 + 1) == 1); + assert_se(PAGE_OFFSET(SIZE_MAX - page_size() - 1) == page_size() - 2); + assert_se(PAGE_OFFSET(SIZE_MAX - page_size() ) == page_size() - 1); + assert_se(PAGE_OFFSET(SIZE_MAX - page_size() + 1) == 0); + assert_se(PAGE_OFFSET(SIZE_MAX - page_size() + 2) == 1); + + assert_se(PAGE_OFFSET_U64(page_size() - 1) == page_size() - 1); + assert_se(PAGE_OFFSET_U64(page_size() ) == 0); + assert_se(PAGE_OFFSET_U64(page_size() + 1) == 1); + assert_se(PAGE_OFFSET_U64(page_size() * 123 - 1) == page_size() - 1); + assert_se(PAGE_OFFSET_U64(page_size() * 123 ) == 0); + assert_se(PAGE_OFFSET_U64(page_size() * 123 + 1) == 1); + assert_se(PAGE_OFFSET_U64(UINT64_MAX - page_size() - 1) == page_size() - 2); + assert_se(PAGE_OFFSET_U64(UINT64_MAX - page_size() ) == page_size() - 1); + assert_se(PAGE_OFFSET_U64(UINT64_MAX - page_size() + 1) == 0); + assert_se(PAGE_OFFSET_U64(UINT64_MAX - page_size() + 2) == 1); +} + +DEFINE_TEST_MAIN(LOG_INFO); |