From 2774d1eec1e02c0da190a0dbcb2b60e855ccef36 Mon Sep 17 00:00:00 2001
From: Joachim Gabler <jgabler@hpc-gridware.com>
Date: Sun, 15 Sep 2024 18:07:10 +0200
Subject: [PATCH] added test scenarios to test_valgrind.cc // BelongsTo: CS-581

---
 test/misc/CMakeLists.txt   |  1 +
 test/misc/test_valgrind.cc | 26 +++++++++++++++++++++++++-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/test/misc/CMakeLists.txt b/test/misc/CMakeLists.txt
index c57953c7e..b438bbbfa 100644
--- a/test/misc/CMakeLists.txt
+++ b/test/misc/CMakeLists.txt
@@ -21,6 +21,7 @@
 # test/misc
 
 add_executable(test_valgrind test_valgrind.cc)
+add_compile_options(test_valgrind PRIVATE "-no-pedantic -Wno-error")
 
 if (INSTALL_SGE_TEST)
    install(TARGETS test_valgrind DESTINATION testbin/${SGE_ARCH})
diff --git a/test/misc/test_valgrind.cc b/test/misc/test_valgrind.cc
index 89c37a212..813573419 100644
--- a/test/misc/test_valgrind.cc
+++ b/test/misc/test_valgrind.cc
@@ -19,14 +19,38 @@
 /*___INFO__MARK_END_NEW__*/
 
 #include <iostream>
+#include <cstring>
 
-void leak_scope(void) {
+#pragma GCC diagnostic ignored "-Wuse-after-free"
+void free_errors() {
+   std::cout << "accessing freed memory and freeing it twice" << std::endl;
+   const char *str = "hello";
+   const char *dup = strdup(str);
+   std::cout << dup << std::endl;
+   free((void *)dup);
+   std::cout << dup << std::endl;
+   free((void *)dup);
+}
+
+void memory_access_error() {
+   std::cout << "invalid access before and after allocated memory" << std::endl;
+   int array[10]{};
+   // @todo valgrind doesn't catch these errors
+   array[10] = 42;
+   array[-1] = 3;
+   std::cout << array[0] << std::endl;
+}
+
+void leak_scope() {
    std::cout << "allocating memory which will leak" << std::endl;
    int *leak = new int[10];
    leak[0] = 42;
+   std::cout << leak[0] << std::endl;
 }
 
 int main() {
    leak_scope();
+   memory_access_error();
+   free_errors();
    return 0;
 }