unotest: one Resetter is enough

It seems all 3 places derive from unotest::MacrosTest, so extract the
common code there.

Change-Id: I71a2474a7d6b1623f50575f9e9c43580ba076330
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/100185
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/include/unotest/macros_test.hxx b/include/unotest/macros_test.hxx
index 2960dc0fbb23..6f55e34e7c87 100644
--- a/include/unotest/macros_test.hxx
+++ b/include/unotest/macros_test.hxx
@@ -13,6 +13,7 @@
 #include <sal/config.h>
 
 #include <memory>
+#include <functional>
 #include <config_gpgme.h>
 #include <rtl/ustring.hxx>
 #include <unotest/detail/unotestdllapi.hxx>
@@ -38,6 +39,30 @@ namespace unotest {
 class OOO_DLLPUBLIC_UNOTEST MacrosTest
 {
 public:
+    class Resetter
+    {
+    private:
+        std::function<void ()> m_Func;
+
+    public:
+        Resetter(std::function<void ()> const& rFunc)
+            : m_Func(rFunc)
+        {
+        }
+        ~Resetter()
+        {
+            try
+            {
+                m_Func();
+            }
+            catch (...) // has to be reliable
+            {
+                fprintf(stderr, "resetter failed with exception\n");
+                abort();
+            }
+        }
+    };
+
     MacrosTest();
     ~MacrosTest();