From 06954da1e847072f9e95df0f183d9327a0f05b5b Mon Sep 17 00:00:00 2001
From: Mosder <xmosder12@gmail.com>
Date: Fri, 21 Aug 2026 14:41:26 +0200
Subject: feat: added some for safe wrappers + added ability to capture and
 test whether output is what was expected

---
 tests/safe_tests.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 62 insertions(+), 5 deletions(-)

(limited to 'tests/safe_tests.c')

diff --git a/tests/safe_tests.c b/tests/safe_tests.c
index 1d48a48..3d46a37 100644
--- a/tests/safe_tests.c
+++ b/tests/safe_tests.c
@@ -3,6 +3,7 @@
 
 #include <limits.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 Test malloc_exit() {
     safe_malloc(ULLONG_MAX);
@@ -17,11 +18,6 @@ Test test_safe_malloc() {
     unsuppress_outputs();
 }
 
-Test realloc_exit() {
-    void *p = NULL;
-    safe_realloc(p, ULLONG_MAX);
-}
-
 Test calloc_exit() {
     safe_calloc(ULLONG_MAX, ULLONG_MAX);
 }
@@ -35,6 +31,11 @@ Test test_safe_calloc() {
     unsuppress_outputs();
 }
 
+Test realloc_exit() {
+    void *p = NULL;
+    safe_realloc(p, ULLONG_MAX);
+}
+
 Test test_safe_realloc() {
     void *p = NULL;
     p = safe_realloc(p, 1024);
@@ -48,9 +49,65 @@ Test test_safe_realloc() {
     unsuppress_outputs();
 }
 
+Test fopen_exit() {
+    safe_fopen("/non-existing-file-name", "r");
+}
+
+Test test_safe_fopen() {
+    FILE *fp = safe_fopen(__FILE__, "r");
+    test_assert(fp != NULL, "Failed to fopen current file");
+
+    suppress_output(stderr);
+    test_assert_exit(fopen_exit, EXIT_FAILURE);
+    unsuppress_outputs();
+}
+
+Test test_safe_tmpfile() {
+    FILE *fp = safe_tmpfile();
+    test_assert(fp != NULL, "Failed to create a tmpfile");
+}
+
+Test dup_exit() {
+    safe_dup(-1);
+}
+
+Test test_safe_dup() {
+    int fd = safe_dup(STDOUT_FILENO);
+    test_assert(fd != -1, "Failed to dup STDOUT_FILENO");
+    close(fd);
+
+    suppress_output(stderr);
+    test_assert_exit(dup_exit, EXIT_FAILURE);
+    unsuppress_outputs();
+}
+
+Test dup2_exit() {
+    safe_dup2(-1, STDOUT_FILENO);
+}
+
+Test test_safe_dup2() {
+    int res = dup2(STDOUT_FILENO, STDOUT_FILENO);
+    test_assert(res != -1, "Failed to dup STDOUT_FILENO 2 itself");
+
+    int fd = dup(STDOUT_FILENO);
+    res = dup2(STDERR_FILENO, STDOUT_FILENO);
+    test_assert(res != -1, "Failed to dup STDERR_FILENO 2 STDOUT_FILENO");
+    res = dup2(fd, STDOUT_FILENO);
+    test_assert(res != -1, "Failed to restore STDOUT_FILENO");
+    close(fd);
+
+    suppress_output(stderr);
+    test_assert_exit(dup2_exit, EXIT_FAILURE);
+    unsuppress_outputs();
+}
+
 void safe_tests(Tester *tester) {
     TestGroup *group = add_test_group(tester, "moslib/safe.h");
     add_test(group, test_safe_malloc);
     add_test(group, test_safe_calloc);
     add_test(group, test_safe_realloc);
+    add_test(group, test_safe_fopen);
+    add_test(group, test_safe_tmpfile);
+    add_test(group, test_safe_dup);
+    add_test(group, test_safe_dup2);
 }
-- 
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