Fixed broken test.

tests/BattleTests/ScriptTests/ScriptSourceTest.cpp

@@ -44,8 +44,7 @@ protected:
 TEST_CASE("Script source with unset script ptr.", "[Battling, Scripting]") {
     auto source = ScriptSourceWithScriptPtr();
     auto scripts = source.GetScriptIterator();
-    auto first = scripts.GetNext();
-    CHECK(first == nullptr);
+    REQUIRE_FALSE(scripts.HasNext());
 }
 
 TEST_CASE("Script source with script ptr being set.", "[Battling, Scripting]") {