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Explain the format argument expected by the test functions

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2023-02-23 21:54:59 +01:00
parent fa83a7ec1e
commit 5472242b67
1 changed files with 16 additions and 3 deletions
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19
tests/suites/test_suite_platform_printf.function
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@ -1,4 +1,14 @@
/* BEGIN_HEADER */
/* The printf test functions take a format argument from the test data
* for several reasons:
* - For some tests, it makes sense to vary the format.
* - For all tests, it means we're testing the actual printf function
* that parses the format at runtime, and not a compiler optimization.
* (It may be useful to add tests that allow compiler optimizations.
* There aren't any yet at the time of writing.)
*/
#include "mbedtls/platform.h"
#include <stdio.h>
@ -14,7 +24,8 @@
/* END_HEADER */
/* BEGIN_CASE */
void printf_int(char *format, int x, char *result)
void printf_int(char *format, /* any format expecting one int argument, e.g. "%d" */
int x, char *result)
{
char *output = NULL;
const size_t n = strlen(result);
@ -32,7 +43,8 @@ exit:
/* END_CASE */
/* BEGIN_CASE */
void printf_long_max(const char *format, long value)
void printf_long_max(const char *format, /* "%lx" or longer type */
long value)
{
char *expected = NULL;
char *output = NULL;
@ -57,7 +69,8 @@ exit:
/* END_CASE */
/* BEGIN_CASE */
void printf_char2(char *format, int arg1, int arg2, char *result)
void printf_char2(char *format, /* "%c%c" */
int arg1, int arg2, char *result)
{
char *output = NULL;
const size_t n = strlen(result);