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#ifndef test_testutils_h_
#define test_testutils_h_
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#ifndef UNUSED
#define UNUSED(x) ((x) = (x))
#endif
/* Redefine assert, so we can simply use the standard assert mechanism
* within testcases and exit with the right output for the testrunner
* to do the right thing. */
void __assert2(const char *expr, const char *function,
const char *file, int line);
void __assert2(const char *expr, const char *function,
const char *file, int line)
{
UNUSED(function);
UNUSED(file);
printf("FAIL - %s at line %d\n", expr, line);
exit(EXIT_FAILURE);
}
#define assert(expr) \
((void) ((expr) || (__assert2 (#expr, __func__, __FILE__, __LINE__), 0)))
typedef bool (*line_func)(const char *data, size_t datalen, void *pw);
static size_t parse_strlen(const char *str, size_t limit);
bool parse_testfile(const char *filename, line_func callback, void *pw);
size_t parse_filesize(const char *filename);
/**
* Testcase datafile parser driver
*
* \param filename Name of file to parse
* \param callback Pointer to function to handle each line of input data
* \param pw Pointer to client-specific private data
* \return true on success, false otherwise.
*/
bool parse_testfile(const char *filename, line_func callback, void *pw)
{
FILE *fp;
char buf[300];
fp = fopen(filename, "rb");
if (fp == NULL) {
printf("Failed opening %s\n", filename);
return false;
}
while (fgets(buf, sizeof buf, fp)) {
if (buf[0] == '\n')
continue;
if (!callback(buf, parse_strlen(buf, sizeof buf - 1), pw)) {
fclose(fp);
return false;
}
}
fclose(fp);
return true;
}
/**
* Utility string length measurer; assumes strings are '\n' terminated
*
* \param str String to measure length of
* \param limit Upper bound on string length
* \return String length
*/
size_t parse_strlen(const char *str, size_t limit)
{
size_t len = 0;
if (str == NULL)
return 0;
while (len < limit - 1 && *str != '\n') {
len++;
str++;
}
len++;
return len;
}
/**
* Read the size of a file
*
* \param filename Name of file to read size of
* \return File size (in bytes), or 0 on error
*/
size_t parse_filesize(const char *filename)
{
FILE *fp;
size_t len = 0;
fp = fopen(filename, "rb");
if (fp == NULL) {
printf("Failed opening %s\n", filename);
return 0;
}
fseek(fp, 0, SEEK_END);
len = ftell(fp);
fclose(fp);
return len;
}
#endif
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