diff options
Diffstat (limited to 'test/example.c')
| -rw-r--r-- | test/example.c | 311 |
1 files changed, 116 insertions, 195 deletions
diff --git a/test/example.c b/test/example.c index 148b276..d6cd4c9 100644 --- a/test/example.c +++ b/test/example.c @@ -17,16 +17,10 @@ #include <stdlib.h> #include <inttypes.h> #include <stdint.h> +#include <stdarg.h> #define TESTFILE "foo.gz" -#define CHECK_ERR(err, msg) { \ - if (err != Z_OK) { \ - fprintf(stderr, "%s error: %d\n", msg, err); \ - exit(1); \ - } \ -} - static const char hello[] = "hello, hello!"; /* "hello world" would be more standard, but the repeated "hello" * stresses the compression code better, sorry... @@ -53,6 +47,24 @@ static alloc_func zalloc = NULL; static free_func zfree = NULL; /* =========================================================================== + * Display error message and exit + */ +void error(const char *format, ...) { + va_list va; + + va_start(va, format); + vfprintf(stderr, format, va); + va_end(va); + + exit(1); +} + +#define CHECK_ERR(err, msg) { \ + if (err != Z_OK) \ + error("%s error: %d\n", msg, err); \ +} + +/* =========================================================================== * Test compress() and uncompress() */ void test_compress(unsigned char *compr, z_size_t comprLen, unsigned char *uncompr, z_size_t uncomprLen) { @@ -67,12 +79,10 @@ void test_compress(unsigned char *compr, z_size_t comprLen, unsigned char *uncom err = PREFIX(uncompress)(uncompr, &uncomprLen, compr, comprLen); CHECK_ERR(err, "uncompress"); - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad uncompress\n"); - exit(1); - } else { + if (strcmp((char*)uncompr, hello)) + error("bad uncompress\n"); + else printf("uncompress(): %s\n", (char *)uncompr); - } } /* =========================================================================== @@ -91,144 +101,95 @@ void test_gzio(const char *fname, unsigned char *uncompr, z_size_t uncomprLen) { /* Write gz file with test data */ file = PREFIX(gzopen)(fname, "wb"); - if (file == NULL) { - fprintf(stderr, "gzopen error\n"); - exit(1); - } + if (file == NULL) + error("gzopen error\n"); /* Write hello, hello! using gzputs and gzprintf */ PREFIX(gzputc)(file, 'h'); - if (PREFIX(gzputs)(file, "ello") != 4) { - fprintf(stderr, "gzputs err: %s\n", PREFIX(gzerror)(file, &err)); - exit(1); - } - if (PREFIX(gzprintf)(file, ", %s!", "hello") != 8) { - fprintf(stderr, "gzprintf err: %s\n", PREFIX(gzerror)(file, &err)); - exit(1); - } + if (PREFIX(gzputs)(file, "ello") != 4) + error("gzputs err: %s\n", PREFIX(gzerror)(file, &err)); + if (PREFIX(gzprintf)(file, ", %s!", "hello") != 8) + error("gzprintf err: %s\n", PREFIX(gzerror)(file, &err)); /* Write string null-teriminator using gzseek */ if (PREFIX(gzseek)(file, 1L, SEEK_CUR) < 0) - { - fprintf(stderr, "gzseek error, gztell=%ld\n", (long)PREFIX(gztell)(file)); - exit(1); - } + error("gzseek error, gztell=%ld\n", (long)PREFIX(gztell)(file)); /* Write hello, hello! using gzfwrite using best compression level */ - if (PREFIX(gzsetparams)(file, Z_BEST_COMPRESSION, Z_DEFAULT_STRATEGY) != Z_OK) { - fprintf(stderr, "gzsetparams err: %s\n", PREFIX(gzerror)(file, &err)); - exit(1); - } - if (PREFIX(gzfwrite)(hello, len, 1, file) == 0) { - fprintf(stderr, "gzfwrite err: %s\n", PREFIX(gzerror)(file, &err)); - exit(1); - } + if (PREFIX(gzsetparams)(file, Z_BEST_COMPRESSION, Z_DEFAULT_STRATEGY) != Z_OK) + error("gzsetparams err: %s\n", PREFIX(gzerror)(file, &err)); + if (PREFIX(gzfwrite)(hello, len, 1, file) == 0) + error("gzfwrite err: %s\n", PREFIX(gzerror)(file, &err)); /* Flush compressed bytes to file */ - if (PREFIX(gzflush)(file, Z_SYNC_FLUSH) != Z_OK) { - fprintf(stderr, "gzflush err: %s\n", PREFIX(gzerror)(file, &err)); - exit(1); - } + if (PREFIX(gzflush)(file, Z_SYNC_FLUSH) != Z_OK) + error("gzflush err: %s\n", PREFIX(gzerror)(file, &err)); comprLen = PREFIX(gzoffset)(file); - if (comprLen <= 0) { - fprintf(stderr, "gzoffset err: %s\n", PREFIX(gzerror)(file, &err)); - exit(1); - } + if (comprLen <= 0) + error("gzoffset err: %s\n", PREFIX(gzerror)(file, &err)); PREFIX(gzclose)(file); /* Open gz file we previously wrote */ file = PREFIX(gzopen)(fname, "rb"); - if (file == NULL) { - fprintf(stderr, "gzopen error\n"); - exit(1); - } + if (file == NULL) + error("gzopen error\n"); + /* Read uncompressed data - hello, hello! string twice */ strcpy((char*)uncompr, "garbages"); - if (PREFIX(gzread)(file, uncompr, (unsigned)uncomprLen) != (int)(len + len)) { - fprintf(stderr, "gzread err: %s\n", PREFIX(gzerror)(file, &err)); - exit(1); - } - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad gzread: %s\n", (char*)uncompr); - exit(1); - } else { + if (PREFIX(gzread)(file, uncompr, (unsigned)uncomprLen) != (int)(len + len)) + error("gzread err: %s\n", PREFIX(gzerror)(file, &err)); + if (strcmp((char*)uncompr, hello)) + error("bad gzread: %s\n", (char*)uncompr); + else printf("gzread(): %s\n", (char*)uncompr); - } /* Check position at the end of the gz file */ - if (PREFIX(gzeof)(file) != 1) { - fprintf(stderr, "gzeof err: not reporting end of stream\n"); - exit(1); - } + if (PREFIX(gzeof)(file) != 1) + error("gzeof err: not reporting end of stream\n"); + /* Seek backwards mid-string and check char reading with gzgetc and gzungetc */ pos = PREFIX(gzseek)(file, -22L, SEEK_CUR); - if (pos != 6 || PREFIX(gztell)(file) != pos) { - fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n", - (long)pos, (long)PREFIX(gztell)(file)); - exit(1); - } - if (PREFIX(gzgetc)(file) != ' ') { - fprintf(stderr, "gzgetc error\n"); - exit(1); - } - if (PREFIX(gzungetc)(' ', file) != ' ') { - fprintf(stderr, "gzungetc error\n"); - exit(1); - } + if (pos != 6 || PREFIX(gztell)(file) != pos) + error("gzseek error, pos=%ld, gztell=%ld\n", (long)pos, (long)PREFIX(gztell)(file)); + if (PREFIX(gzgetc)(file) != ' ') + error("gzgetc error\n"); + if (PREFIX(gzungetc)(' ', file) != ' ') + error("gzungetc error\n"); /* Read first hello, hello! string with gzgets */ strcpy((char*)uncompr, "garbages"); PREFIX(gzgets)(file, (char*)uncompr, (int)uncomprLen); - if (strlen((char*)uncompr) != 7) { /* " hello!" */ - fprintf(stderr, "gzgets err after gzseek: %s\n", PREFIX(gzerror)(file, &err)); - exit(1); - } - if (strcmp((char*)uncompr, hello + 6)) { - fprintf(stderr, "bad gzgets after gzseek\n"); - exit(1); - } else { + if (strlen((char*)uncompr) != 7) /* " hello!" */ + error("gzgets err after gzseek: %s\n", PREFIX(gzerror)(file, &err)); + if (strcmp((char*)uncompr, hello + 6)) + error("bad gzgets after gzseek\n"); + else printf("gzgets() after gzseek: %s\n", (char*)uncompr); - } /* Seek to second hello, hello! string */ pos = PREFIX(gzseek)(file, 14L, SEEK_SET); - if (pos != 14 || PREFIX(gztell)(file) != pos) { - fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n", - (long)pos, (long)PREFIX(gztell)(file)); - exit(1); - } + if (pos != 14 || PREFIX(gztell)(file) != pos) + error("gzseek error, pos=%ld, gztell=%ld\n", (long)pos, (long)PREFIX(gztell)(file)); /* Check position not at end of file */ - if (PREFIX(gzeof)(file) != 0) { - fprintf(stderr, "gzeof err: reporting end of stream\n"); - exit(1); - } + if (PREFIX(gzeof)(file) != 0) + error("gzeof err: reporting end of stream\n"); /* Read first hello, hello! string with gzfread */ strcpy((char*)uncompr, "garbages"); read = PREFIX(gzfread)(uncompr, uncomprLen, 1, file); - if (strcmp((const char *)uncompr, hello) != 0) { - fprintf(stderr, "bad gzgets\n"); - exit(1); - } else { + if (strcmp((const char *)uncompr, hello) != 0) + error("bad gzgets\n"); + else printf("gzgets(): %s\n", (char*)uncompr); - } pos = PREFIX(gzoffset)(file); - if (pos < 0 || pos != (comprLen + 10)) { - fprintf(stderr, "gzoffset err: wrong offset at end\n"); - exit(1); - } + if (pos < 0 || pos != (comprLen + 10)) + error("gzoffset err: wrong offset at end\n"); /* Trigger an error and clear it with gzclearerr */ PREFIX(gzfread)(uncompr, (size_t)-1, (size_t)-1, file); PREFIX(gzerror)(file, &err); - if (err == 0) { - fprintf(stderr, "gzerror err: no error returned\n"); - exit(1); - } + if (err == 0) + error("gzerror err: no error returned\n"); PREFIX(gzclearerr)(file); PREFIX(gzerror)(file, &err); - if (err != 0) { - fprintf(stderr, "gzclearerr err: not zero %d\n", err); - exit(1); - } + if (err != 0) + error("gzclearerr err: not zero %d\n", err); PREFIX(gzclose)(file); - if (PREFIX(gzclose)(NULL) != Z_STREAM_ERROR) { - fprintf(stderr, "gzclose unexpected return when handle null\n"); - exit(1); - } + if (PREFIX(gzclose)(NULL) != Z_STREAM_ERROR) + error("gzclose unexpected return when handle null\n"); Z_UNUSED(read); #endif } @@ -302,12 +263,10 @@ void test_inflate(unsigned char *compr, size_t comprLen, unsigned char *uncompr, err = PREFIX(inflateEnd)(&d_stream); CHECK_ERR(err, "inflateEnd"); - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad inflate\n"); - exit(1); - } else { + if (strcmp((char*)uncompr, hello)) + error("bad inflate\n"); + else printf("inflate(): %s\n", (char *)uncompr); - } } static unsigned int diff; @@ -349,29 +308,22 @@ void test_large_deflate(unsigned char *compr, size_t comprLen, unsigned char *un c_stream.avail_in = (unsigned int)uncomprLen; err = PREFIX(deflate)(&c_stream, Z_NO_FLUSH); CHECK_ERR(err, "deflate"); - if (c_stream.avail_in != 0) { - fprintf(stderr, "deflate not greedy\n"); - exit(1); - } + if (c_stream.avail_in != 0) + error("deflate not greedy\n"); /* Feed in already compressed data and switch to no compression: */ if (zng_params) { #ifndef ZLIB_COMPAT zng_deflateGetParams(&c_stream, params, sizeof(params) / sizeof(params[0])); - if (level != Z_BEST_SPEED) { - fprintf(stderr, "Expected compression level Z_BEST_SPEED, got %d\n", level); - exit(1); - } - if (strategy != Z_DEFAULT_STRATEGY) { - fprintf(stderr, "Expected compression strategy Z_DEFAULT_STRATEGY, got %d\n", strategy); - exit(1); - } + if (level != Z_BEST_SPEED) + error("Expected compression level Z_BEST_SPEED, got %d\n", level); + if (strategy != Z_DEFAULT_STRATEGY) + error("Expected compression strategy Z_DEFAULT_STRATEGY, got %d\n", strategy); level = Z_NO_COMPRESSION; strategy = Z_DEFAULT_STRATEGY; zng_deflateSetParams(&c_stream, params, sizeof(params) / sizeof(params[0])); #else - fprintf(stderr, "test_large_deflate() called with zng_params=1 in compat mode\n"); - exit(1); + error("test_large_deflate() called with zng_params=1 in compat mode\n"); #endif } else { PREFIX(deflateParams)(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY); @@ -388,20 +340,15 @@ void test_large_deflate(unsigned char *compr, size_t comprLen, unsigned char *un level = -1; strategy = -1; zng_deflateGetParams(&c_stream, params, sizeof(params) / sizeof(params[0])); - if (level != Z_NO_COMPRESSION) { - fprintf(stderr, "Expected compression level Z_NO_COMPRESSION, got %d\n", level); - exit(1); - } - if (strategy != Z_DEFAULT_STRATEGY) { - fprintf(stderr, "Expected compression strategy Z_DEFAULT_STRATEGY, got %d\n", strategy); - exit(1); - } + if (level != Z_NO_COMPRESSION) + error("Expected compression level Z_NO_COMPRESSION, got %d\n", level); + if (strategy != Z_DEFAULT_STRATEGY) + error("Expected compression strategy Z_DEFAULT_STRATEGY, got %d\n", strategy); level = Z_BEST_COMPRESSION; strategy = Z_FILTERED; zng_deflateSetParams(&c_stream, params, sizeof(params) / sizeof(params[0])); #else - fprintf(stderr, "test_large_deflate() called with zng_params=1 in compat mode\n"); - exit(1); + error("test_large_deflate() called with zng_params=1 in compat mode\n"); #endif } else { PREFIX(deflateParams)(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED); @@ -412,10 +359,8 @@ void test_large_deflate(unsigned char *compr, size_t comprLen, unsigned char *un CHECK_ERR(err, "deflate"); err = PREFIX(deflate)(&c_stream, Z_FINISH); - if (err != Z_STREAM_END) { - fprintf(stderr, "deflate should report Z_STREAM_END\n"); - exit(1); - } + if (err != Z_STREAM_END) + error("deflate should report Z_STREAM_END\n"); err = PREFIX(deflateEnd)(&c_stream); CHECK_ERR(err, "deflateEnd"); } @@ -452,12 +397,10 @@ void test_large_inflate(unsigned char *compr, size_t comprLen, unsigned char *un err = PREFIX(inflateEnd)(&d_stream); CHECK_ERR(err, "inflateEnd"); - if (d_stream.total_out != 2*uncomprLen + diff) { - fprintf(stderr, "bad large inflate: %" PRIu64 "\n", (uint64_t)d_stream.total_out); - exit(1); - } else { + if (d_stream.total_out != 2*uncomprLen + diff) + error("bad large inflate: %" PRIu64 "\n", (uint64_t)d_stream.total_out); + else printf("large_inflate(): OK\n"); - } } /* =========================================================================== @@ -525,10 +468,8 @@ void test_sync(unsigned char *compr, size_t comprLen, unsigned char *uncompr, si CHECK_ERR(err, "inflateSync"); err = PREFIX(inflate)(&d_stream, Z_FINISH); - if (err != Z_STREAM_END) { - fprintf(stderr, "inflate should report Z_STREAM_END\n"); - exit(1); - } + if (err != Z_STREAM_END) + error("inflate should report Z_STREAM_END\n"); err = PREFIX(inflateEnd)(&d_stream); CHECK_ERR(err, "inflateEnd"); @@ -562,10 +503,8 @@ void test_dict_deflate(unsigned char *compr, size_t comprLen) { c_stream.avail_in = (unsigned int)strlen(hello)+1; err = PREFIX(deflate)(&c_stream, Z_FINISH); - if (err != Z_STREAM_END) { - fprintf(stderr, "deflate should report Z_STREAM_END\n"); - exit(1); - } + if (err != Z_STREAM_END) + error("deflate should report Z_STREAM_END\n"); err = PREFIX(deflateEnd)(&c_stream); CHECK_ERR(err, "deflateEnd"); } @@ -598,10 +537,8 @@ void test_dict_inflate(unsigned char *compr, size_t comprLen, unsigned char *unc err = PREFIX(inflate)(&d_stream, Z_NO_FLUSH); if (err == Z_STREAM_END) break; if (err == Z_NEED_DICT) { - if (d_stream.adler != dictId) { - fprintf(stderr, "unexpected dictionary"); - exit(1); - } + if (d_stream.adler != dictId) + error("unexpected dictionary"); err = PREFIX(inflateSetDictionary)(&d_stream, (const unsigned char*)dictionary, (int)sizeof(dictionary)); } @@ -610,27 +547,21 @@ void test_dict_inflate(unsigned char *compr, size_t comprLen, unsigned char *unc err = PREFIX(inflateGetDictionary)(&d_stream, NULL, &check_dictionary_len); CHECK_ERR(err, "inflateGetDictionary"); - if (check_dictionary_len != sizeof(dictionary)) { - fprintf(stderr, "bad dictionary length\n"); - exit(1); - } + if (check_dictionary_len != sizeof(dictionary)) + error("bad dictionary length\n"); err = PREFIX(inflateGetDictionary)(&d_stream, check_dictionary, &check_dictionary_len); CHECK_ERR(err, "inflateGetDictionary"); - if (memcmp(dictionary, check_dictionary, sizeof(dictionary)) != 0) { - fprintf(stderr, "bad dictionary\n"); - exit(1); - } + if (memcmp(dictionary, check_dictionary, sizeof(dictionary)) != 0) + error("bad dictionary\n"); err = PREFIX(inflateEnd)(&d_stream); CHECK_ERR(err, "inflateEnd"); - if (strncmp((char*)uncompr, hello, sizeof(hello))) { - fprintf(stderr, "bad inflate with dict\n"); - exit(1); - } else { + if (strncmp((char*)uncompr, hello, sizeof(hello))) + error("bad inflate with dict\n"); + else printf("inflate with dictionary: %s\n", (char *)uncompr); - } } /* =========================================================================== @@ -750,10 +681,8 @@ void test_deflate_get_dict(unsigned char *compr, size_t comprLen) { err = PREFIX(deflate)(&c_stream, Z_FINISH); - if (err != Z_STREAM_END) { - fprintf(stderr, "deflate should report Z_STREAM_END\n"); - exit(1); - } + if (err != Z_STREAM_END) + error("deflate should report Z_STREAM_END\n"); dictNew = calloc(256, 1); dictLen = (unsigned int *)calloc(4, 1); @@ -905,14 +834,10 @@ void test_deflate_prime(unsigned char *compr, size_t comprLen, unsigned char *un err = PREFIX(inflateEnd)(&d_stream); CHECK_ERR(err, "inflateEnd"); - if (strcmp((const char *)uncompr, hello) != 0) { - fprintf(stderr, "bad deflatePrime\n"); - exit(1); - } - - if (err == Z_OK) { + if (strcmp((const char *)uncompr, hello) != 0) + error("bad deflatePrime\n"); + if (err == Z_OK) printf("deflatePrime(): OK\n"); - } } /* =========================================================================== @@ -925,10 +850,8 @@ void test_deflate_set_header(unsigned char *compr, size_t comprLen) { size_t len = strlen(hello)+1; - if (head == NULL) { - printf("out of memory\n"); - exit(1); - } + if (head == NULL) + error("out of memory\n"); c_stream.zalloc = zalloc; c_stream.zfree = zfree; @@ -1047,10 +970,8 @@ int main(int argc, char *argv[]) { /* compr and uncompr are cleared to avoid reading uninitialized * data and to ensure that uncompr compresses well. */ - if (compr == NULL || uncompr == NULL) { - printf("out of memory\n"); - exit(1); - } + if (compr == NULL || uncompr == NULL) + error("out of memory\n"); test_compress(compr, comprLen, uncompr, uncomprLen); |