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592 lines
30 KiB
592 lines
30 KiB
9 years ago
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/*
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* Copyright (c) 2011 Scott Vokes <vokes.s@gmail.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef GREATEST_H
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#define GREATEST_H
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#define GREATEST_VERSION_MAJOR 0
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#define GREATEST_VERSION_MINOR 9
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#define GREATEST_VERSION_PATCH 3
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/* A unit testing system for C, contained in 1 file.
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* It doesn't use dynamic allocation or depend on anything
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* beyond ANSI C89. */
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/*********************************************************************
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* Minimal test runner template
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*********************************************************************/
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#if 0
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#include "greatest.h"
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TEST foo_should_foo() {
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PASS();
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}
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static void setup_cb(void *data) {
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printf("setup callback for each test case\n");
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}
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static void teardown_cb(void *data) {
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printf("teardown callback for each test case\n");
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}
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SUITE(suite) {
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/* Optional setup/teardown callbacks which will be run before/after
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* every test case in the suite.
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* Cleared when the suite finishes. */
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SET_SETUP(setup_cb, voidp_to_callback_data);
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SET_TEARDOWN(teardown_cb, voidp_to_callback_data);
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RUN_TEST(foo_should_foo);
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}
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/* Add all the definitions that need to be in the test runner's main file. */
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GREATEST_MAIN_DEFS();
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int main(int argc, char **argv) {
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GREATEST_MAIN_BEGIN(); /* command-line arguments, initialization. */
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RUN_SUITE(suite);
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GREATEST_MAIN_END(); /* display results */
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}
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#endif
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/*********************************************************************/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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/***********
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* Options *
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***********/
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/* Default column width for non-verbose output. */
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#ifndef GREATEST_DEFAULT_WIDTH
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#define GREATEST_DEFAULT_WIDTH 72
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#endif
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/* FILE *, for test logging. */
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#ifndef GREATEST_STDOUT
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#define GREATEST_STDOUT stdout
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#endif
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/* Remove GREATEST_ prefix from most commonly used symbols? */
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#ifndef GREATEST_USE_ABBREVS
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#define GREATEST_USE_ABBREVS 1
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#endif
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/*********
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* Types *
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*********/
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/* Info for the current running suite. */
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typedef struct greatest_suite_info {
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unsigned int tests_run;
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unsigned int passed;
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unsigned int failed;
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unsigned int skipped;
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/* timers, pre/post running suite and individual tests */
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clock_t pre_suite;
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clock_t post_suite;
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clock_t pre_test;
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clock_t post_test;
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} greatest_suite_info;
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/* Type for a suite function. */
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typedef void (greatest_suite_cb)(void);
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/* Types for setup/teardown callbacks. If non-NULL, these will be run
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* and passed the pointer to their additional data. */
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typedef void (greatest_setup_cb)(void *udata);
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typedef void (greatest_teardown_cb)(void *udata);
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typedef enum {
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GREATEST_FLAG_VERBOSE = 0x01,
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GREATEST_FLAG_FIRST_FAIL = 0x02,
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GREATEST_FLAG_LIST_ONLY = 0x04
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} GREATEST_FLAG;
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typedef struct greatest_run_info {
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unsigned int flags;
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unsigned int tests_run; /* total test count */
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/* Overall pass/fail/skip counts. */
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unsigned int passed;
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unsigned int failed;
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unsigned int skipped;
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/* currently running test suite */
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greatest_suite_info suite;
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/* info to print about the most recent failure */
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const char *fail_file;
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unsigned int fail_line;
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const char *msg;
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/* current setup/teardown hooks and userdata */
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greatest_setup_cb *setup;
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void *setup_udata;
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greatest_teardown_cb *teardown;
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void *teardown_udata;
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/* formatting info for ".....s...F"-style output */
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unsigned int col;
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unsigned int width;
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/* only run a specific suite or test */
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char *suite_filter;
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char *test_filter;
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/* overall timers */
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clock_t begin;
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clock_t end;
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} greatest_run_info;
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/* Global var for the current testing context.
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* Initialized by GREATEST_MAIN_DEFS(). */
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extern greatest_run_info greatest_info;
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/**********************
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* Exported functions *
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**********************/
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void greatest_do_pass(const char *name);
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void greatest_do_fail(const char *name);
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void greatest_do_skip(const char *name);
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int greatest_pre_test(const char *name);
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void greatest_post_test(const char *name, int res);
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void greatest_usage(const char *name);
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void GREATEST_SET_SETUP_CB(greatest_setup_cb *cb, void *udata);
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void GREATEST_SET_TEARDOWN_CB(greatest_teardown_cb *cb, void *udata);
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/**********
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* Macros *
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**********/
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/* Define a suite. */
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#define GREATEST_SUITE(NAME) void NAME(void)
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/* Start defining a test function.
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* The arguments are not included, to allow parametric testing. */
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#define GREATEST_TEST static int
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/* Run a suite. */
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#define GREATEST_RUN_SUITE(S_NAME) greatest_run_suite(S_NAME, #S_NAME)
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/* Run a test in the current suite. */
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#define GREATEST_RUN_TEST(TEST) \
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do { \
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if (greatest_pre_test(#TEST) == 1) { \
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int res = TEST(); \
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greatest_post_test(#TEST, res); \
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} else if (GREATEST_LIST_ONLY()) { \
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fprintf(GREATEST_STDOUT, " %s\n", #TEST); \
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} \
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} while (0)
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/* Run a test in the current suite with one void* argument,
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* which can be a pointer to a struct with multiple arguments. */
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#define GREATEST_RUN_TEST1(TEST, ENV) \
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do { \
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if (greatest_pre_test(#TEST) == 1) { \
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int res = TEST(ENV); \
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greatest_post_test(#TEST, res); \
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} else if (GREATEST_LIST_ONLY()) { \
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fprintf(GREATEST_STDOUT, " %s\n", #TEST); \
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} \
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} while (0)
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/* If __VA_ARGS__ (C99) is supported, allow parametric testing
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* without needing to manually manage the argument struct. */
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#if __STDC_VERSION__ >= 19901L
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#define GREATEST_RUN_TESTp(TEST, ...) \
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do { \
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if (greatest_pre_test(#TEST) == 1) { \
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int res = TEST(__VA_ARGS__); \
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greatest_post_test(#TEST, res); \
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} else if (GREATEST_LIST_ONLY()) { \
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fprintf(GREATEST_STDOUT, " %s\n", #TEST); \
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} \
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} while (0)
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#endif
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/* Check if the test runner is in verbose mode. */
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#define GREATEST_IS_VERBOSE() (greatest_info.flags & GREATEST_FLAG_VERBOSE)
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#define GREATEST_LIST_ONLY() (greatest_info.flags & GREATEST_FLAG_LIST_ONLY)
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#define GREATEST_FIRST_FAIL() (greatest_info.flags & GREATEST_FLAG_FIRST_FAIL)
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#define GREATEST_FAILURE_ABORT() (greatest_info.suite.failed > 0 && GREATEST_FIRST_FAIL())
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/* Message-less forms. */
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#define GREATEST_PASS() GREATEST_PASSm(NULL)
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#define GREATEST_FAIL() GREATEST_FAILm(NULL)
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#define GREATEST_SKIP() GREATEST_SKIPm(NULL)
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#define GREATEST_ASSERT(COND) GREATEST_ASSERTm(#COND, COND)
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#define GREATEST_ASSERT_FALSE(COND) GREATEST_ASSERT_FALSEm(#COND, COND)
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#define GREATEST_ASSERT_EQ(EXP, GOT) GREATEST_ASSERT_EQm(#EXP " != " #GOT, EXP, GOT)
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#define GREATEST_ASSERT_STR_EQ(EXP, GOT) GREATEST_ASSERT_STR_EQm(#EXP " != " #GOT, EXP, GOT)
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/* The following forms take an additional message argument first,
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* to be displayed by the test runner. */
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/* Fail if a condition is not true, with message. */
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#define GREATEST_ASSERTm(MSG, COND) \
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do { \
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greatest_info.msg = MSG; \
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greatest_info.fail_file = __FILE__; \
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greatest_info.fail_line = __LINE__; \
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if (!(COND)) return -1; \
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greatest_info.msg = NULL; \
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} while (0)
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#define GREATEST_ASSERT_FALSEm(MSG, COND) \
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do { \
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greatest_info.msg = MSG; \
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greatest_info.fail_file = __FILE__; \
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greatest_info.fail_line = __LINE__; \
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if ((COND)) return -1; \
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greatest_info.msg = NULL; \
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} while (0)
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#define GREATEST_ASSERT_EQm(MSG, EXP, GOT) \
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do { \
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greatest_info.msg = MSG; \
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greatest_info.fail_file = __FILE__; \
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greatest_info.fail_line = __LINE__; \
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if ((EXP) != (GOT)) return -1; \
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greatest_info.msg = NULL; \
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} while (0)
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#define GREATEST_ASSERT_STR_EQm(MSG, EXP, GOT) \
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do { \
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const char *exp_s = (EXP); \
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const char *got_s = (GOT); \
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greatest_info.msg = MSG; \
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greatest_info.fail_file = __FILE__; \
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greatest_info.fail_line = __LINE__; \
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if (0 != strcmp(exp_s, got_s)) { \
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fprintf(GREATEST_STDOUT, \
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"Expected:\n####\n%s\n####\n", exp_s); \
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fprintf(GREATEST_STDOUT, \
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"Got:\n####\n%s\n####\n", got_s); \
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return -1; \
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} \
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greatest_info.msg = NULL; \
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} while (0)
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#define GREATEST_PASSm(MSG) \
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do { \
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greatest_info.msg = MSG; \
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return 0; \
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} while (0)
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#define GREATEST_FAILm(MSG) \
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do { \
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greatest_info.fail_file = __FILE__; \
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greatest_info.fail_line = __LINE__; \
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greatest_info.msg = MSG; \
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return -1; \
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} while (0)
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#define GREATEST_SKIPm(MSG) \
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do { \
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greatest_info.msg = MSG; \
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return 1; \
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} while (0)
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#define GREATEST_SET_TIME(NAME) \
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NAME = clock(); \
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if (NAME == (clock_t) -1) { \
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fprintf(GREATEST_STDOUT, \
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"clock error: %s\n", #NAME); \
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exit(EXIT_FAILURE); \
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}
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#define GREATEST_CLOCK_DIFF(C1, C2) \
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fprintf(GREATEST_STDOUT, " (%lu ticks, %.3f sec)", \
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(long unsigned int) (C2) - (C1), \
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(double)((C2) - (C1)) / (1.0 * (double)CLOCKS_PER_SEC)) \
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/* Include several function definitions in the main test file. */
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#define GREATEST_MAIN_DEFS() \
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\
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/* Is FILTER a subset of NAME? */ \
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static int greatest_name_match(const char *name, \
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const char *filter) { \
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size_t offset = 0; \
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size_t filter_len = strlen(filter); \
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while (name[offset] != '\0') { \
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if (name[offset] == filter[0]) { \
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if (0 == strncmp(&name[offset], filter, filter_len)) { \
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return 1; \
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} \
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} \
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offset++; \
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} \
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\
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return 0; \
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} \
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\
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int greatest_pre_test(const char *name) { \
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if (!GREATEST_LIST_ONLY() \
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&& (!GREATEST_FIRST_FAIL() || greatest_info.suite.failed == 0) \
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&& (greatest_info.test_filter == NULL || \
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greatest_name_match(name, greatest_info.test_filter))) { \
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GREATEST_SET_TIME(greatest_info.suite.pre_test); \
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if (greatest_info.setup) { \
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greatest_info.setup(greatest_info.setup_udata); \
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} \
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return 1; /* test should be run */ \
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} else { \
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return 0; /* skipped */ \
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} \
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} \
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\
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void greatest_post_test(const char *name, int res) { \
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GREATEST_SET_TIME(greatest_info.suite.post_test); \
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if (greatest_info.teardown) { \
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void *udata = greatest_info.teardown_udata; \
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greatest_info.teardown(udata); \
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} \
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\
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if (res < 0) { \
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greatest_do_fail(name); \
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} else if (res > 0) { \
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greatest_do_skip(name); \
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} else if (res == 0) { \
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greatest_do_pass(name); \
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} \
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greatest_info.suite.tests_run++; \
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greatest_info.col++; \
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if (GREATEST_IS_VERBOSE()) { \
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GREATEST_CLOCK_DIFF(greatest_info.suite.pre_test, \
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greatest_info.suite.post_test); \
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fprintf(GREATEST_STDOUT, "\n"); \
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} else if (greatest_info.col % greatest_info.width == 0) { \
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fprintf(GREATEST_STDOUT, "\n"); \
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greatest_info.col = 0; \
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} \
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if (GREATEST_STDOUT == stdout) fflush(stdout); \
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} \
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\
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static void greatest_run_suite(greatest_suite_cb *suite_cb, \
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const char *suite_name) { \
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if (greatest_info.suite_filter && \
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!greatest_name_match(suite_name, greatest_info.suite_filter)) \
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return; \
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if (GREATEST_FIRST_FAIL() && greatest_info.failed > 0) return; \
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greatest_info.suite.tests_run = 0; \
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greatest_info.suite.failed = 0; \
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greatest_info.suite.passed = 0; \
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greatest_info.suite.skipped = 0; \
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greatest_info.suite.pre_suite = 0; \
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greatest_info.suite.post_suite = 0; \
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greatest_info.suite.pre_test = 0; \
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greatest_info.suite.post_test = 0; \
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greatest_info.col = 0; \
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fprintf(GREATEST_STDOUT, "\n* Suite %s:\n", suite_name); \
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GREATEST_SET_TIME(greatest_info.suite.pre_suite); \
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suite_cb(); \
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GREATEST_SET_TIME(greatest_info.suite.post_suite); \
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if (greatest_info.suite.tests_run > 0) { \
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fprintf(GREATEST_STDOUT, \
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|
"\n%u tests - %u pass, %u fail, %u skipped", \
|
||
|
greatest_info.suite.tests_run, \
|
||
|
greatest_info.suite.passed, \
|
||
|
greatest_info.suite.failed, \
|
||
|
greatest_info.suite.skipped); \
|
||
|
GREATEST_CLOCK_DIFF(greatest_info.suite.pre_suite, \
|
||
|
greatest_info.suite.post_suite); \
|
||
|
fprintf(GREATEST_STDOUT, "\n"); \
|
||
|
} \
|
||
|
greatest_info.setup = NULL; \
|
||
|
greatest_info.setup_udata = NULL; \
|
||
|
greatest_info.teardown = NULL; \
|
||
|
greatest_info.teardown_udata = NULL; \
|
||
|
greatest_info.passed += greatest_info.suite.passed; \
|
||
|
greatest_info.failed += greatest_info.suite.failed; \
|
||
|
greatest_info.skipped += greatest_info.suite.skipped; \
|
||
|
greatest_info.tests_run += greatest_info.suite.tests_run; \
|
||
|
} \
|
||
|
\
|
||
|
void greatest_do_pass(const char *name) { \
|
||
|
if (GREATEST_IS_VERBOSE()) { \
|
||
|
fprintf(GREATEST_STDOUT, "PASS %s: %s", \
|
||
|
name, greatest_info.msg ? greatest_info.msg : ""); \
|
||
|
} else { \
|
||
|
fprintf(GREATEST_STDOUT, "."); \
|
||
|
} \
|
||
|
greatest_info.suite.passed++; \
|
||
|
} \
|
||
|
\
|
||
|
void greatest_do_fail(const char *name) { \
|
||
|
if (GREATEST_IS_VERBOSE()) { \
|
||
|
fprintf(GREATEST_STDOUT, \
|
||
|
"FAIL %s: %s (%s:%u)", \
|
||
|
name, greatest_info.msg ? greatest_info.msg : "", \
|
||
|
greatest_info.fail_file, greatest_info.fail_line); \
|
||
|
} else { \
|
||
|
fprintf(GREATEST_STDOUT, "F"); \
|
||
|
/* add linebreak if in line of '.'s */ \
|
||
|
if (greatest_info.col % greatest_info.width != 0) \
|
||
|
fprintf(GREATEST_STDOUT, "\n"); \
|
||
|
greatest_info.col = 0; \
|
||
|
fprintf(GREATEST_STDOUT, "FAIL %s: %s (%s:%u)\n", \
|
||
|
name, \
|
||
|
greatest_info.msg ? greatest_info.msg : "", \
|
||
|
greatest_info.fail_file, greatest_info.fail_line); \
|
||
|
} \
|
||
|
greatest_info.suite.failed++; \
|
||
|
} \
|
||
|
\
|
||
|
void greatest_do_skip(const char *name) { \
|
||
|
if (GREATEST_IS_VERBOSE()) { \
|
||
|
fprintf(GREATEST_STDOUT, "SKIP %s: %s", \
|
||
|
name, \
|
||
|
greatest_info.msg ? \
|
||
|
greatest_info.msg : "" ); \
|
||
|
} else { \
|
||
|
fprintf(GREATEST_STDOUT, "s"); \
|
||
|
} \
|
||
|
greatest_info.suite.skipped++; \
|
||
|
} \
|
||
|
\
|
||
|
void greatest_usage(const char *name) { \
|
||
|
fprintf(GREATEST_STDOUT, \
|
||
|
"Usage: %s [-hlfv] [-s SUITE] [-t TEST]\n" \
|
||
|
" -h print this Help\n" \
|
||
|
" -l List suites and their tests, then exit\n" \
|
||
|
" -f Stop runner after first failure\n" \
|
||
|
" -v Verbose output\n" \
|
||
|
" -s SUITE only run suite named SUITE\n" \
|
||
|
" -t TEST only run test named TEST\n", \
|
||
|
name); \
|
||
|
} \
|
||
|
\
|
||
|
void GREATEST_SET_SETUP_CB(greatest_setup_cb *cb, void *udata) { \
|
||
|
greatest_info.setup = cb; \
|
||
|
greatest_info.setup_udata = udata; \
|
||
|
} \
|
||
|
\
|
||
|
void GREATEST_SET_TEARDOWN_CB(greatest_teardown_cb *cb, \
|
||
|
void *udata) { \
|
||
|
greatest_info.teardown = cb; \
|
||
|
greatest_info.teardown_udata = udata; \
|
||
|
} \
|
||
|
\
|
||
|
greatest_run_info greatest_info
|
||
|
|
||
|
/* Handle command-line arguments, etc. */
|
||
|
#define GREATEST_MAIN_BEGIN() \
|
||
|
do { \
|
||
|
int i = 0; \
|
||
|
memset(&greatest_info, 0, sizeof(greatest_info)); \
|
||
|
if (greatest_info.width == 0) { \
|
||
|
greatest_info.width = GREATEST_DEFAULT_WIDTH; \
|
||
|
} \
|
||
|
for (i = 1; i < argc; i++) { \
|
||
|
if (0 == strcmp("-t", argv[i])) { \
|
||
|
if (argc <= i + 1) { \
|
||
|
greatest_usage(argv[0]); \
|
||
|
exit(EXIT_FAILURE); \
|
||
|
} \
|
||
|
greatest_info.test_filter = argv[i+1]; \
|
||
|
i++; \
|
||
|
} else if (0 == strcmp("-s", argv[i])) { \
|
||
|
if (argc <= i + 1) { \
|
||
|
greatest_usage(argv[0]); \
|
||
|
exit(EXIT_FAILURE); \
|
||
|
} \
|
||
|
greatest_info.suite_filter = argv[i+1]; \
|
||
|
i++; \
|
||
|
} else if (0 == strcmp("-f", argv[i])) { \
|
||
|
greatest_info.flags |= GREATEST_FLAG_FIRST_FAIL; \
|
||
|
} else if (0 == strcmp("-v", argv[i])) { \
|
||
|
greatest_info.flags |= GREATEST_FLAG_VERBOSE; \
|
||
|
} else if (0 == strcmp("-l", argv[i])) { \
|
||
|
greatest_info.flags |= GREATEST_FLAG_LIST_ONLY; \
|
||
|
} else if (0 == strcmp("-h", argv[i])) { \
|
||
|
greatest_usage(argv[0]); \
|
||
|
exit(EXIT_SUCCESS); \
|
||
|
} else { \
|
||
|
fprintf(GREATEST_STDOUT, \
|
||
|
"Unknown argument '%s'\n", argv[i]); \
|
||
|
greatest_usage(argv[0]); \
|
||
|
exit(EXIT_FAILURE); \
|
||
|
} \
|
||
|
} \
|
||
|
} while (0); \
|
||
|
GREATEST_SET_TIME(greatest_info.begin)
|
||
|
|
||
|
#define GREATEST_MAIN_END() \
|
||
|
do { \
|
||
|
if (!GREATEST_LIST_ONLY()) { \
|
||
|
GREATEST_SET_TIME(greatest_info.end); \
|
||
|
fprintf(GREATEST_STDOUT, \
|
||
|
"\nTotal: %u tests", greatest_info.tests_run); \
|
||
|
GREATEST_CLOCK_DIFF(greatest_info.begin, \
|
||
|
greatest_info.end); \
|
||
|
fprintf(GREATEST_STDOUT, "\n"); \
|
||
|
fprintf(GREATEST_STDOUT, \
|
||
|
"Pass: %u, fail: %u, skip: %u.\n", \
|
||
|
greatest_info.passed, \
|
||
|
greatest_info.failed, greatest_info.skipped); \
|
||
|
} \
|
||
|
return (greatest_info.failed > 0 \
|
||
|
? EXIT_FAILURE : EXIT_SUCCESS); \
|
||
|
} while (0)
|
||
|
|
||
|
/* Make abbreviations without the GREATEST_ prefix for the
|
||
|
* most commonly used symbols. */
|
||
|
#if GREATEST_USE_ABBREVS
|
||
|
#define TEST GREATEST_TEST
|
||
|
#define SUITE GREATEST_SUITE
|
||
|
#define RUN_TEST GREATEST_RUN_TEST
|
||
|
#define RUN_TEST1 GREATEST_RUN_TEST1
|
||
|
#define RUN_SUITE GREATEST_RUN_SUITE
|
||
|
#define ASSERT GREATEST_ASSERT
|
||
|
#define ASSERTm GREATEST_ASSERTm
|
||
|
#define ASSERT_FALSE GREATEST_ASSERT_FALSE
|
||
|
#define ASSERT_EQ GREATEST_ASSERT_EQ
|
||
|
#define ASSERT_STR_EQ GREATEST_ASSERT_STR_EQ
|
||
|
#define ASSERT_FALSEm GREATEST_ASSERT_FALSEm
|
||
|
#define ASSERT_EQm GREATEST_ASSERT_EQm
|
||
|
#define ASSERT_STR_EQm GREATEST_ASSERT_STR_EQm
|
||
|
#define PASS GREATEST_PASS
|
||
|
#define FAIL GREATEST_FAIL
|
||
|
#define SKIP GREATEST_SKIP
|
||
|
#define PASSm GREATEST_PASSm
|
||
|
#define FAILm GREATEST_FAILm
|
||
|
#define SKIPm GREATEST_SKIPm
|
||
|
#define SET_SETUP GREATEST_SET_SETUP_CB
|
||
|
#define SET_TEARDOWN GREATEST_SET_TEARDOWN_CB
|
||
|
|
||
|
#if __STDC_VERSION__ >= 19901L
|
||
|
#endif /* C99 */
|
||
|
#define RUN_TESTp GREATEST_RUN_TESTp
|
||
|
#endif /* USE_ABBREVS */
|
||
|
|
||
|
#endif
|