diff options
Diffstat (limited to 'tests/core/zstream.c')
-rw-r--r-- | tests/core/zstream.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/tests/core/zstream.c b/tests/core/zstream.c deleted file mode 100644 index 3cbcea168..000000000 --- a/tests/core/zstream.c +++ /dev/null @@ -1,168 +0,0 @@ -#include "clar_libgit2.h" -#include "buffer.h" -#include "zstream.h" - -static const char *data = "This is a test test test of This is a test"; - -#define INFLATE_EXTRA 2 - -static void assert_zlib_equal_( - const void *expected, size_t e_len, - const void *compressed, size_t c_len, - const char *msg, const char *file, const char *func, int line) -{ - z_stream stream; - char *expanded = git__calloc(1, e_len + INFLATE_EXTRA); - cl_assert(expanded); - - memset(&stream, 0, sizeof(stream)); - stream.next_out = (Bytef *)expanded; - stream.avail_out = (uInt)(e_len + INFLATE_EXTRA); - stream.next_in = (Bytef *)compressed; - stream.avail_in = (uInt)c_len; - - cl_assert(inflateInit(&stream) == Z_OK); - cl_assert(inflate(&stream, Z_FINISH)); - inflateEnd(&stream); - - clar__assert_equal( - file, func, line, msg, 1, - "%d", (int)stream.total_out, (int)e_len); - clar__assert_equal( - file, func, line, "Buffer len was not exact match", 1, - "%d", (int)stream.avail_out, (int)INFLATE_EXTRA); - - clar__assert( - memcmp(expanded, expected, e_len) == 0, - file, func, line, "uncompressed data did not match", NULL, 1); - - git__free(expanded); -} - -#define assert_zlib_equal(E,EL,C,CL) \ - assert_zlib_equal_(E, EL, C, CL, #EL " != " #CL, __FILE__, __func__, (int)__LINE__) - -void test_core_zstream__basic(void) -{ - git_zstream z = GIT_ZSTREAM_INIT; - char out[128]; - size_t outlen = sizeof(out); - - cl_git_pass(git_zstream_init(&z, GIT_ZSTREAM_DEFLATE)); - cl_git_pass(git_zstream_set_input(&z, data, strlen(data) + 1)); - cl_git_pass(git_zstream_get_output(out, &outlen, &z)); - cl_assert(git_zstream_done(&z)); - cl_assert(outlen > 0); - git_zstream_free(&z); - - assert_zlib_equal(data, strlen(data) + 1, out, outlen); -} - -void test_core_zstream__fails_on_trailing_garbage(void) -{ - git_buf deflated = GIT_BUF_INIT, inflated = GIT_BUF_INIT; - char i = 0; - - /* compress a simple string */ - git_zstream_deflatebuf(&deflated, "foobar!!", 8); - - /* append some garbage */ - for (i = 0; i < 10; i++) { - git_buf_putc(&deflated, i); - } - - cl_git_fail(git_zstream_inflatebuf(&inflated, deflated.ptr, deflated.size)); - - git_buf_dispose(&deflated); - git_buf_dispose(&inflated); -} - -void test_core_zstream__buffer(void) -{ - git_buf out = GIT_BUF_INIT; - cl_git_pass(git_zstream_deflatebuf(&out, data, strlen(data) + 1)); - assert_zlib_equal(data, strlen(data) + 1, out.ptr, out.size); - git_buf_dispose(&out); -} - -#define BIG_STRING_PART "Big Data IS Big - Long Data IS Long - We need a buffer larger than 1024 x 1024 to make sure we trigger chunked compression - Big Big Data IS Bigger than Big - Long Long Data IS Longer than Long" - -static void compress_and_decompress_input_various_ways(git_buf *input) -{ - git_buf out1 = GIT_BUF_INIT, out2 = GIT_BUF_INIT; - git_buf inflated = GIT_BUF_INIT; - size_t i, fixed_size = max(input->size / 2, 256); - char *fixed = git__malloc(fixed_size); - cl_assert(fixed); - - /* compress with deflatebuf */ - - cl_git_pass(git_zstream_deflatebuf(&out1, input->ptr, input->size)); - assert_zlib_equal(input->ptr, input->size, out1.ptr, out1.size); - - /* compress with various fixed size buffer (accumulating the output) */ - - for (i = 0; i < 3; ++i) { - git_zstream zs = GIT_ZSTREAM_INIT; - size_t use_fixed_size; - - switch (i) { - case 0: use_fixed_size = 256; break; - case 1: use_fixed_size = fixed_size / 2; break; - case 2: use_fixed_size = fixed_size; break; - } - cl_assert(use_fixed_size <= fixed_size); - - cl_git_pass(git_zstream_init(&zs, GIT_ZSTREAM_DEFLATE)); - cl_git_pass(git_zstream_set_input(&zs, input->ptr, input->size)); - - while (!git_zstream_done(&zs)) { - size_t written = use_fixed_size; - cl_git_pass(git_zstream_get_output(fixed, &written, &zs)); - cl_git_pass(git_buf_put(&out2, fixed, written)); - } - - git_zstream_free(&zs); - assert_zlib_equal(input->ptr, input->size, out2.ptr, out2.size); - - /* did both approaches give the same data? */ - cl_assert_equal_sz(out1.size, out2.size); - cl_assert(!memcmp(out1.ptr, out2.ptr, out1.size)); - - git_buf_dispose(&out2); - } - - cl_git_pass(git_zstream_inflatebuf(&inflated, out1.ptr, out1.size)); - cl_assert_equal_i(input->size, inflated.size); - cl_assert(memcmp(input->ptr, inflated.ptr, inflated.size) == 0); - - git_buf_dispose(&out1); - git_buf_dispose(&inflated); - git__free(fixed); -} - -void test_core_zstream__big_data(void) -{ - git_buf in = GIT_BUF_INIT; - size_t scan, target; - - for (target = 1024; target <= 1024 * 1024 * 4; target *= 8) { - - /* make a big string that's easy to compress */ - git_buf_clear(&in); - while (in.size < target) - cl_git_pass( - git_buf_put(&in, BIG_STRING_PART, strlen(BIG_STRING_PART))); - - compress_and_decompress_input_various_ways(&in); - - /* make a big string that's hard to compress */ - srand(0xabad1dea); - for (scan = 0; scan < in.size; ++scan) - in.ptr[scan] = (char)rand(); - - compress_and_decompress_input_various_ways(&in); - } - - git_buf_dispose(&in); -} |