Adapt to enable testing and add more tests

tests/stubs/plugin-state-helpers.cpp

@@ -0,0 +1,86 @@
+#include "plugin-state-helpers.hpp"
+
+namespace advss {
+
+void SavePluginSettings(obs_data_t *) {}
+void LoadPluginSettings(obs_data_t *) {}
+void AddSaveStep(std::function<void(obs_data_t *)>) {}
+void AddLoadStep(std::function<void(obs_data_t *)>) {}
+void AddPostLoadStep(std::function<void()>) {}
+void AddIntervalResetStep(std::function<void()>) {}
+void RunSaveSteps(obs_data_t *) {}
+void RunLoadSteps(obs_data_t *) {}
+void RunAndClearPostLoadSteps() {}
+void ClearPostLoadSteps() {}
+
+void AddPluginInitStep(std::function<void()>) {}
+void AddPluginPostLoadStep(std::function<void()>) {}
+void AddPluginCleanupStep(std::function<void()>) {}
+void RunPluginInitSteps() {}
+void RunPluginPostLoadSteps() {}
+void RunPluginCleanupSteps() {}
+
+void StopPlugin() {}
+void StartPlugin() {}
+bool PluginIsRunning()
+{
+	return false;
+}
+int GetIntervalValue()
+{
+	return 0;
+}
+void AddStartStep(std::function<void()>) {}
+void AddStopStep(std::function<void()>) {}
+void RunStartSteps() {}
+void RunStopSteps() {}
+void RunIntervalResetSteps() {}
+
+void SetPluginNoMatchBehavior(NoMatchBehavior) {}
+NoMatchBehavior GetPluginNoMatchBehavior()
+{
+	return NoMatchBehavior::NO_SWITCH;
+}
+void SetNoMatchScene(const OBSWeakSource &) {}
+
+std::string ForegroundWindowTitle()
+{
+	return "";
+}
+std::string PreviousForegroundWindowTitle()
+{
+	return "";
+}
+bool SettingsWindowIsOpened()
+{
+	return false;
+}
+bool HighlightUIElementsEnabled()
+{
+	return false;
+}
+
+bool OBSIsShuttingDown()
+{
+	return false;
+}
+bool InitialLoadIsComplete()
+{
+	return false;
+}
+bool IsFirstInterval()
+{
+	return false;
+}
+bool IsFirstIntervalAfterStop()
+{
+	return false;
+}
+
+void SetMacroHighlightingEnabled(bool) {}
+bool IsMacroHighlightingEnabled()
+{
+	return false;
+}
+
+} // namespace advss