Settings: Fix unittest memory leak, change input types

src/settings.cpp

@@ -822,22 +822,22 @@ bool Settings::setDefault(const std::string &name, const std::string &value)
 }
 
 
-bool Settings::setGroup(const std::string &name, Settings *group)
+bool Settings::setGroup(const std::string &name, const Settings &group)
 {
 	// Settings must own the group pointer
 	// avoid double-free by copying the source
 	Settings *copy = new Settings();
-	*copy = *group;
+	*copy = group;
 	return setEntry(name, &copy, true, false);
 }
 
 
-bool Settings::setGroupDefault(const std::string &name, Settings *group)
+bool Settings::setGroupDefault(const std::string &name, const Settings &group)
 {
 	// Settings must own the group pointer
 	// avoid double-free by copying the source
 	Settings *copy = new Settings();
-	*copy = *group;
+	*copy = group;
 	return setEntry(name, &copy, true, true);
 }
 
@@ -1060,7 +1060,7 @@ void Settings::overrideDefaults(Settings *other)
 {
 	for (const auto &setting : other->m_settings) {
 		if (setting.second.is_group) {
-			setGroupDefault(setting.first, setting.second.group);
+			setGroupDefault(setting.first, *setting.second.group);
 			continue;
 		}
 		const FlagDesc *flagdesc = getFlagDescFallback(setting.first);

src/settings.h

@@ -192,8 +192,8 @@ class Settings {
 		bool set_group, bool set_default);
 	bool set(const std::string &name, const std::string &value);
 	bool setDefault(const std::string &name, const std::string &value);
-	bool setGroup(const std::string &name, Settings *group);
-	bool setGroupDefault(const std::string &name, Settings *group);
+	bool setGroup(const std::string &name, const Settings &group);
+	bool setGroupDefault(const std::string &name, const Settings &group);
 	bool setBool(const std::string &name, bool value);
 	bool setS16(const std::string &name, s16 value);
 	bool setU16(const std::string &name, u16 value);

src/unittest/test_settings.cpp

@@ -149,15 +149,15 @@ void TestSettings::testAllSettings()
 	UASSERT(group->getS16("a") == 5);
 	UASSERT(fabs(group->getFloat("bb") - 2.5) < 0.001);
 
-	Settings *group3 = new Settings;
-	group3->set("cat", "meow");
-	group3->set("dog", "woof");
-
-	Settings *group2 = new Settings;
-	group2->setS16("num_apples", 4);
-	group2->setS16("num_oranges", 53);
-	group2->setGroup("animals", group3);
-	group2->set("animals", "cute"); //destroys group 3
+	Settings group3;
+	group3.set("cat", "meow");
+	group3.set("dog", "woof");
+
+	Settings group2;
+	group2.setS16("num_apples", 4);
+	group2.setS16("num_oranges", 53);
+	group2.setGroup("animals", group3);
+	group2.set("animals", "cute"); //destroys group 3
 	s.setGroup("groupy_thing", group2);
 
 	// Test set failure conditions