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#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <unistd.h>
#define TEST(r, f, x, m) ( \
((r) = (f)) == (x) || \
(printf(__FILE__ ":%d: %s failed (" m ")\n", __LINE__, #f, r, x, strerror(errno)), err++, 0) )
#define TEST_S(s, x, m) ( \
!strcmp((s),(x)) || \
(printf(__FILE__ ":%d: [%s] != [%s] (%s)\n", __LINE__, s, x, m), err++, 0) )
int test_fscanf(void)
{
int i, x, y;
int err=0;
char a[100], b[100], *s;
FILE *f;
int p[2];
TEST(i, pipe(p), 0, "failed to open pipe %d!=%d (%s)");
TEST(i, !(f = fdopen(p[0], "rb")), 0, "failed to fdopen pipe %d!=%d (%s)");
if (!f) {
close(p[0]);
close(p[1]);
return err;
}
TEST(i, write(p[1], "hello, world\n", 13), 13, "write error %d!=%d (%s)");
TEST(i, fscanf(f, "%s %[own]", a, b), 2, "got %d fields, expected %d");
TEST_S(a, "hello,", "wrong result for %s");
TEST_S(b, "wo", "wrong result for %[own]");
TEST(i, fgetc(f), 'r', "'%c' != '%c') (%s)");
TEST(i, write(p[1], " 0x12 0x34", 10), 10, "write error %d!=%d (%s)");
TEST(i, fscanf(f, "ld %5i%2i", &x, &y), 1, "got %d fields, expected %d");
TEST(i, x, 0x12, "%d != %d");
TEST(i, fgetc(f), '3', "'%c' != '%c'");
fclose(f);
close(p[1]);
return err;
}
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