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curl/tests/libtest/test.h
Jay Satiro 9c1806ae46 build: Disable Visual Studio warning "conditional expression is constant"
- Disable warning C4127 "conditional expression is constant" globally
  in curl_setup.h for when building with Microsoft's compiler.

This mainly affects building with the Visual Studio project files found
in the projects dir.

Prior to this change the cmake and winbuild build systems already
disabled 4127 globally for when building with Microsoft's compiler.
Also, 4127 was already disabled for all build systems in the limited
circumstance of the WHILE_FALSE macro which disabled the warning
specifically for while(0). This commit removes the WHILE_FALSE macro and
all other cruft in favor of disabling globally in curl_setup.

Background:

We have various macros that cause 0 or 1 to be evaluated, which would
cause warning C4127 in Visual Studio. For example this causes it:

    #define Curl_resolver_asynch() 1

Full behavior is not clearly defined and inconsistent across versions.
However it is documented that since VS 2015 Update 3 Microsoft has
addressed this somewhat but not entirely, not warning on while(true) for
example.

Prior to this change some C4127 warnings occurred when I built with
Visual Studio using the generated projects in the projects dir.

Closes https://github.com/curl/curl/pull/4658
2019-12-01 19:01:02 -05:00

489 lines
19 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* !checksrc! disable ASSIGNWITHINCONDITION all */
/* Now include the curl_setup.h file from libcurl's private libdir (the source
version, but that might include "curl_config.h" from the build dir so we
need both of them in the include path), so that we get good in-depth
knowledge about the system we're building this on */
#define CURL_NO_OLDIES
#include "curl_setup.h"
#include <curl/curl.h>
#ifdef HAVE_SYS_SELECT_H
/* since so many tests use select(), we can just as well include it here */
#include <sys/select.h>
#endif
#ifdef TPF
# include "select.h"
#endif
#include "curl_printf.h"
#define test_setopt(A,B,C) \
if((res = curl_easy_setopt((A), (B), (C))) != CURLE_OK) goto test_cleanup
#define test_multi_setopt(A,B,C) \
if((res = curl_multi_setopt((A), (B), (C))) != CURLE_OK) goto test_cleanup
extern char *libtest_arg2; /* set by first.c to the argv[2] or NULL */
extern char *libtest_arg3; /* set by first.c to the argv[3] or NULL */
/* argc and argv as passed in to the main() function */
extern int test_argc;
extern char **test_argv;
extern struct timeval tv_test_start; /* for test timing */
extern int select_wrapper(int nfds, fd_set *rd, fd_set *wr, fd_set *exc,
struct timeval *tv);
extern void wait_ms(int ms); /* wait this many milliseconds */
extern int test(char *URL); /* the actual test function provided by each
individual libXXX.c file */
extern char *hexdump(const unsigned char *buffer, size_t len);
#ifdef UNITTESTS
extern int unitfail;
#endif
/*
** TEST_ERR_* values must be greater than CURL_LAST CURLcode in order
** to avoid confusion with any CURLcode or CURLMcode. These TEST_ERR_*
** codes are returned to signal test specific situations and should
** not get mixed with CURLcode or CURLMcode values.
**
** For portability reasons TEST_ERR_* values should be less than 127.
*/
#define TEST_ERR_MAJOR_BAD 126
#define TEST_ERR_RUNS_FOREVER 125
#define TEST_ERR_EASY_INIT 124
#define TEST_ERR_MULTI_INIT 123
#define TEST_ERR_NUM_HANDLES 122
#define TEST_ERR_SELECT 121
#define TEST_ERR_SUCCESS 120
#define TEST_ERR_FAILURE 119
#define TEST_ERR_USAGE 118
#define TEST_ERR_FOPEN 117
#define TEST_ERR_FSTAT 116
#define TEST_ERR_BAD_TIMEOUT 115
/*
** Macros for test source code readability/maintainability.
**
** All of the following macros require that an int data type 'res' variable
** exists in scope where macro is used, and that it has been initialized to
** zero before the macro is used.
**
** exe_* and chk_* macros are helper macros not intended to be used from
** outside of this header file. Arguments 'Y' and 'Z' of these represent
** source code file and line number, while Arguments 'A', 'B', etc, are
** the arguments used to actually call a libcurl function.
**
** All easy_* and multi_* macros call a libcurl function and evaluate if
** the function has succeeded or failed. When the function succeeds 'res'
** variable is not set nor cleared and program continues normal flow. On
** the other hand if function fails 'res' variable is set and a jump to
** label 'test_cleanup' is performed.
**
** Every easy_* and multi_* macros have a res_easy_* and res_multi_* macro
** counterpart that operates in the same way with the exception that no
** jump takes place in case of failure. res_easy_* and res_multi_* macros
** should be immediately followed by checking if 'res' variable has been
** set.
**
** 'res' variable when set will hold a CURLcode, CURLMcode, or any of the
** TEST_ERR_* values defined above. It is advisable to return this value
** as test result.
*/
/* ---------------------------------------------------------------- */
#define exe_easy_init(A,Y,Z) do { \
if(((A) = curl_easy_init()) == NULL) { \
fprintf(stderr, "%s:%d curl_easy_init() failed\n", (Y), (Z)); \
res = TEST_ERR_EASY_INIT; \
} \
} while(0)
#define res_easy_init(A) \
exe_easy_init((A), (__FILE__), (__LINE__))
#define chk_easy_init(A,Y,Z) do { \
exe_easy_init((A), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define easy_init(A) \
chk_easy_init((A), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_multi_init(A,Y,Z) do { \
if(((A) = curl_multi_init()) == NULL) { \
fprintf(stderr, "%s:%d curl_multi_init() failed\n", (Y), (Z)); \
res = TEST_ERR_MULTI_INIT; \
} \
} while(0)
#define res_multi_init(A) \
exe_multi_init((A), (__FILE__), (__LINE__))
#define chk_multi_init(A,Y,Z) do { \
exe_multi_init((A), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define multi_init(A) \
chk_multi_init((A), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_easy_setopt(A,B,C,Y,Z) do { \
CURLcode ec; \
if((ec = curl_easy_setopt((A), (B), (C))) != CURLE_OK) { \
fprintf(stderr, "%s:%d curl_easy_setopt() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_easy_strerror(ec)); \
res = (int)ec; \
} \
} while(0)
#define res_easy_setopt(A, B, C) \
exe_easy_setopt((A), (B), (C), (__FILE__), (__LINE__))
#define chk_easy_setopt(A, B, C, Y, Z) do { \
exe_easy_setopt((A), (B), (C), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define easy_setopt(A, B, C) \
chk_easy_setopt((A), (B), (C), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_multi_setopt(A, B, C, Y, Z) do { \
CURLMcode ec; \
if((ec = curl_multi_setopt((A), (B), (C))) != CURLM_OK) { \
fprintf(stderr, "%s:%d curl_multi_setopt() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_multi_strerror(ec)); \
res = (int)ec; \
} \
} while(0)
#define res_multi_setopt(A,B,C) \
exe_multi_setopt((A), (B), (C), (__FILE__), (__LINE__))
#define chk_multi_setopt(A,B,C,Y,Z) do { \
exe_multi_setopt((A), (B), (C), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define multi_setopt(A,B,C) \
chk_multi_setopt((A), (B), (C), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_multi_add_handle(A,B,Y,Z) do { \
CURLMcode ec; \
if((ec = curl_multi_add_handle((A), (B))) != CURLM_OK) { \
fprintf(stderr, "%s:%d curl_multi_add_handle() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_multi_strerror(ec)); \
res = (int)ec; \
} \
} while(0)
#define res_multi_add_handle(A, B) \
exe_multi_add_handle((A), (B), (__FILE__), (__LINE__))
#define chk_multi_add_handle(A, B, Y, Z) do { \
exe_multi_add_handle((A), (B), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define multi_add_handle(A, B) \
chk_multi_add_handle((A), (B), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_multi_remove_handle(A,B,Y,Z) do { \
CURLMcode ec; \
if((ec = curl_multi_remove_handle((A), (B))) != CURLM_OK) { \
fprintf(stderr, "%s:%d curl_multi_remove_handle() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_multi_strerror(ec)); \
res = (int)ec; \
} \
} while(0)
#define res_multi_remove_handle(A, B) \
exe_multi_remove_handle((A), (B), (__FILE__), (__LINE__))
#define chk_multi_remove_handle(A, B, Y, Z) do { \
exe_multi_remove_handle((A), (B), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define multi_remove_handle(A, B) \
chk_multi_remove_handle((A), (B), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_multi_perform(A,B,Y,Z) do { \
CURLMcode ec; \
if((ec = curl_multi_perform((A), (B))) != CURLM_OK) { \
fprintf(stderr, "%s:%d curl_multi_perform() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_multi_strerror(ec)); \
res = (int)ec; \
} \
else if(*((B)) < 0) { \
fprintf(stderr, "%s:%d curl_multi_perform() succeeded, " \
"but returned invalid running_handles value (%d)\n", \
(Y), (Z), (int)*((B))); \
res = TEST_ERR_NUM_HANDLES; \
} \
} while(0)
#define res_multi_perform(A, B) \
exe_multi_perform((A), (B), (__FILE__), (__LINE__))
#define chk_multi_perform(A, B, Y, Z) do { \
exe_multi_perform((A), (B), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define multi_perform(A,B) \
chk_multi_perform((A), (B), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_multi_fdset(A, B, C, D, E, Y, Z) do { \
CURLMcode ec; \
if((ec = curl_multi_fdset((A), (B), (C), (D), (E))) != CURLM_OK) { \
fprintf(stderr, "%s:%d curl_multi_fdset() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_multi_strerror(ec)); \
res = (int)ec; \
} \
else if(*((E)) < -1) { \
fprintf(stderr, "%s:%d curl_multi_fdset() succeeded, " \
"but returned invalid max_fd value (%d)\n", \
(Y), (Z), (int)*((E))); \
res = TEST_ERR_NUM_HANDLES; \
} \
} while(0)
#define res_multi_fdset(A, B, C, D, E) \
exe_multi_fdset((A), (B), (C), (D), (E), (__FILE__), (__LINE__))
#define chk_multi_fdset(A, B, C, D, E, Y, Z) do { \
exe_multi_fdset((A), (B), (C), (D), (E), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define multi_fdset(A, B, C, D, E) \
chk_multi_fdset((A), (B), (C), (D), (E), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_multi_timeout(A,B,Y,Z) do { \
CURLMcode ec; \
if((ec = curl_multi_timeout((A), (B))) != CURLM_OK) { \
fprintf(stderr, "%s:%d curl_multi_timeout() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_multi_strerror(ec)); \
res = (int)ec; \
} \
else if(*((B)) < -1L) { \
fprintf(stderr, "%s:%d curl_multi_timeout() succeeded, " \
"but returned invalid timeout value (%ld)\n", \
(Y), (Z), (long)*((B))); \
res = TEST_ERR_BAD_TIMEOUT; \
} \
} while(0)
#define res_multi_timeout(A, B) \
exe_multi_timeout((A), (B), (__FILE__), (__LINE__))
#define chk_multi_timeout(A, B, Y, Z) do { \
exe_multi_timeout((A), (B), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define multi_timeout(A, B) \
chk_multi_timeout((A), (B), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_multi_poll(A,B,C,D,E,Y,Z) do { \
CURLMcode ec; \
if((ec = curl_multi_poll((A), (B), (C), (D), (E))) != CURLM_OK) { \
fprintf(stderr, "%s:%d curl_multi_poll() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_multi_strerror(ec)); \
res = (int)ec; \
} \
else if(*((E)) < 0) { \
fprintf(stderr, "%s:%d curl_multi_poll() succeeded, " \
"but returned invalid numfds value (%d)\n", \
(Y), (Z), (int)*((E))); \
res = TEST_ERR_NUM_HANDLES; \
} \
} while(0)
#define res_multi_poll(A, B, C, D, E) \
exe_multi_poll((A), (B), (C), (D), (E), (__FILE__), (__LINE__))
#define chk_multi_poll(A, B, C, D, E, Y, Z) do { \
exe_multi_poll((A), (B), (C), (D), (E), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define multi_poll(A, B, C, D, E) \
chk_multi_poll((A), (B), (C), (D), (E), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_multi_wakeup(A,Y,Z) do { \
CURLMcode ec; \
if((ec = curl_multi_wakeup((A))) != CURLM_OK) { \
fprintf(stderr, "%s:%d curl_multi_wakeup() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_multi_strerror(ec)); \
res = (int)ec; \
} \
} while(0)
#define res_multi_wakeup(A) \
exe_multi_wakeup((A), (__FILE__), (__LINE__))
#define chk_multi_wakeup(A, Y, Z) do { \
exe_multi_wakeup((A), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define multi_wakeup(A) \
chk_multi_wakeup((A), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_select_test(A, B, C, D, E, Y, Z) do { \
int ec; \
if(select_wrapper((A), (B), (C), (D), (E)) == -1) { \
ec = SOCKERRNO; \
fprintf(stderr, "%s:%d select() failed, with " \
"errno %d (%s)\n", \
(Y), (Z), ec, strerror(ec)); \
res = TEST_ERR_SELECT; \
} \
} while(0)
#define res_select_test(A, B, C, D, E) \
exe_select_test((A), (B), (C), (D), (E), (__FILE__), (__LINE__))
#define chk_select_test(A, B, C, D, E, Y, Z) do { \
exe_select_test((A), (B), (C), (D), (E), (Y), (Z)); \
if(res) \
goto test_cleanup; \
} while(0)
#define select_test(A, B, C, D, E) \
chk_select_test((A), (B), (C), (D), (E), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define start_test_timing() do { \
tv_test_start = tutil_tvnow(); \
} while(0)
#define exe_test_timedout(Y,Z) do { \
if(tutil_tvdiff(tutil_tvnow(), tv_test_start) > TEST_HANG_TIMEOUT) { \
fprintf(stderr, "%s:%d ABORTING TEST, since it seems " \
"that it would have run forever.\n", (Y), (Z)); \
res = TEST_ERR_RUNS_FOREVER; \
} \
} while(0)
#define res_test_timedout() \
exe_test_timedout((__FILE__), (__LINE__))
#define chk_test_timedout(Y, Z) do { \
exe_test_timedout(Y, Z); \
if(res) \
goto test_cleanup; \
} while(0)
#define abort_on_test_timeout() \
chk_test_timedout((__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */
#define exe_global_init(A,Y,Z) do { \
CURLcode ec; \
if((ec = curl_global_init((A))) != CURLE_OK) { \
fprintf(stderr, "%s:%d curl_global_init() failed, " \
"with code %d (%s)\n", \
(Y), (Z), (int)ec, curl_easy_strerror(ec)); \
res = (int)ec; \
} \
} while(0)
#define res_global_init(A) \
exe_global_init((A), (__FILE__), (__LINE__))
#define chk_global_init(A, Y, Z) do { \
exe_global_init((A), (Y), (Z)); \
if(res) \
return res; \
} while(0)
/* global_init() is different than other macros. In case of
failure it 'return's instead of going to 'test_cleanup'. */
#define global_init(A) \
chk_global_init((A), (__FILE__), (__LINE__))
/* ---------------------------------------------------------------- */