diff --git a/tests/s25Main/campaign/testCampaignLuaFile.cpp b/tests/s25Main/campaign/testCampaignLuaFile.cpp
index e5de2acec..1992d8342 100644
--- a/tests/s25Main/campaign/testCampaignLuaFile.cpp
+++ b/tests/s25Main/campaign/testCampaignLuaFile.cpp
@@ -22,14 +22,28 @@ BOOST_AUTO_TEST_SUITE(CampaignLuaFile)
 
 BOOST_AUTO_TEST_CASE(ScriptVersion)
 {
-    // No getRequiredLuaVersion
+    rttr::test::TmpFolder tmp;
+    const auto campaignFile = tmp / "campaign.lua";
     {
-        rttr::test::TmpFolder tmp;
-        {
-            bnw::ofstream file(tmp / "campaign.lua");
-            file << "";
-        }
+        bnw::ofstream file(campaignFile);
+
+        file << "campaign ={\
+                version = \"1\",\
+                author = \"Max Meier\",\
+                name = \"Meine Kampagne\",\
+                shortDescription = \"Sehr kurze Beschreibung\",\
+                longDescription = \"Das ist die lange Beschreibung\",\
+                image = \"<RTTR_GAME>/GFX/PICS/WORLD.LBM\",\
+                maxHumanPlayers = 1,\
+                difficulty = \"easy\",\
+                mapFolder = \"<RTTR_GAME>/DATA/MAPS\",\
+                luaFolder = \"<RTTR_GAME>/CAMPAIGNS/ROMAN\",\
+                maps = { \"dessert0.WLD\", \"dessert1.WLD\", \"dessert2.WLD\"}\
+            }\n";
+    }
 
+    // No getRequiredLuaVersion
+    {
         CampaignDescription desc;
         CampaignDataLoader loader(desc, tmp);
         rttr::test::LogAccessor logAcc;
@@ -40,41 +54,25 @@ BOOST_AUTO_TEST_CASE(ScriptVersion)
 
     // Correct version
     {
-        rttr::test::TmpFolder tmp;
         {
-            bnw::ofstream file(tmp / "campaign.lua");
-            file << helpers::format("function getRequiredLuaVersion()\n return %1%\n end",
+            bnw::ofstream file(campaignFile, std::ios::app);
+            file << helpers::format("function getRequiredLuaVersion()\n return %1%\n end\n",
                                     CampaignDataLoader::GetVersion());
         }
 
         CampaignDescription desc;
         CampaignDataLoader loader(desc, tmp);
         rttr::test::LogAccessor logAcc;
-        BOOST_TEST_REQUIRE(!loader.Load());
+        BOOST_TEST_REQUIRE(loader.Load());
         BOOST_TEST(loader.CheckScriptVersion());
         logAcc.clearLog();
     }
 
     // Backwards compatibility: version 2 can load version 1
     {
-        rttr::test::TmpFolder tmp;
         {
-            bnw::ofstream file(tmp / "campaign.lua");
-
-            file << "campaign ={\
-                version = \"1\",\
-                author = \"Max Meier\",\
-                name = \"Meine Kampagne\",\
-                shortDescription = \"Sehr kurze Beschreibung\",\
-                longDescription = \"Das ist die lange Beschreibung\",\
-                image = \"<RTTR_GAME>/GFX/PICS/WORLD.LBM\",\
-                maxHumanPlayers = 1,\
-                difficulty = \"easy\",\
-                mapFolder = \"<RTTR_GAME>/DATA/MAPS\",\
-                luaFolder = \"<RTTR_GAME>/CAMPAIGNS/ROMAN\",\
-                maps = { \"dessert0.WLD\", \"dessert1.WLD\", \"dessert2.WLD\"}\
-            }\
-            function getRequiredLuaVersion()\n return 1\n end";
+            bnw::ofstream file(tmp / "campaign.lua", std::ios::app);
+            file << "function getRequiredLuaVersion()\n return 1\n end\n";
         }
 
         CampaignDescription desc;
@@ -88,14 +86,12 @@ BOOST_AUTO_TEST_CASE(ScriptVersion)
 
     // Wrong version
     {
-        BOOST_TEST_PASSPOINT();
-        rttr::test::TmpFolder tmp;
         BOOST_TEST_PASSPOINT();
         {
             BOOST_TEST_PASSPOINT();
-            bnw::ofstream file(tmp / "campaign.lua");
+            bnw::ofstream file(tmp / "campaign.lua", std::ios::app);
             BOOST_TEST_PASSPOINT();
-            file << helpers::format("function getRequiredLuaVersion()\n return %1%\n end",
+            file << helpers::format("function getRequiredLuaVersion()\n return %1%\n end\n",
                                     CampaignDataLoader::GetVersion() + 1);
             BOOST_TEST_PASSPOINT();
         }