X-Git-Url: https://ruderich.org/simon/gitweb/?a=blobdiff_plain;f=tests%2Fexample.c;h=3d165e56c89b6955d4531b28f1b4f7e12bd4106f;hb=ba2283bd3780a13f26521c5c47deedfc7184ed7d;hp=0fee9733f100a28dba8f0226a8aada01059acef4;hpb=7adfbfd2cf1d46144c41a75aa501938607a316b5;p=coloredstderr%2Fcoloredstderr.git

diff --git a/tests/example.c b/tests/example.c
index 0fee973..3d165e5 100644
--- a/tests/example.c
+++ b/tests/example.c
@@ -32,7 +32,7 @@ int main(int argc, char **argv unused) {
     printf("write to stdout\n");
     fflush(stdout);
 
-    errno = 0;
+    errno = ENOMEM;
     perror("error!");
 
     write(STDERR_FILENO, "write to stderr 2", 17);
@@ -56,5 +56,14 @@ int main(int argc, char **argv unused) {
     putc_unlocked('x', stderr);
     putc_unlocked('\n', stdout);
 
+    /* Test invalid stuff. */
+    write(-3, "foo", 3);
+    close(-42);
+    close(-4711);
+    /* Can't test this, results in a segfault with the "normal" fclose(). */
+    /*fclose(NULL);*/
+    dup(-12);
+    dup2(12, -42);
+
     return EXIT_SUCCESS;
 }