diff options
Diffstat (limited to 'env.c')
-rw-r--r-- | env.c | 40 |
1 files changed, 40 insertions, 0 deletions
@@ -0,0 +1,40 @@ +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <limits.h> +#include <unistd.h> +#include <stdlib.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) ) + +extern char **environ; +int clearenv(void); + +int test_env(void) +{ + int i; + int err=0; + char a[100], b[100], *s; + FILE *f; + + TEST(i, (clearenv(), !environ || !*environ), 1, "failed"); + TEST(i, putenv("TEST=1"), 0, "failed"); + TEST(s, environ[1], 0, "%p != 0"); + TEST_S((s=getenv("TEST")), "1", "failed"); + TEST(i, unsetenv("TEST"), 0, "failed"); + TEST(i, !*environ, 1, "failed"); + TEST(i, setenv("TEST", "2", 0), 0, "failed"); + TEST_S((s=getenv("TEST")), "2", "failed"); + TEST(i, setenv("TEST", "3", 0), 0, "failed"); + TEST_S((s=getenv("TEST")), "2", "failed"); + TEST(i, setenv("TEST", "3", 1), 0, "failed"); + TEST_S((s=getenv("TEST")), "3", "failed"); + + return err; +} |