diff --git a/core/input/input_map.cpp b/core/input/input_map.cpp
index fe4ee99204..816d9d1082 100644
--- a/core/input/input_map.cpp
+++ b/core/input/input_map.cpp
@@ -746,3 +746,7 @@ InputMap::InputMap() {
 	ERR_FAIL_COND_MSG(singleton, "Singleton in InputMap already exist.");
 	singleton = this;
 }
+
+InputMap::~InputMap() {
+	singleton = nullptr;
+}
diff --git a/core/input/input_map.h b/core/input/input_map.h
index a2d3952f94..c724fdb142 100644
--- a/core/input/input_map.h
+++ b/core/input/input_map.h
@@ -95,6 +95,7 @@ public:
 	const OrderedHashMap<String, List<Ref<InputEvent>>> &get_builtins();
 
 	InputMap();
+	~InputMap();
 };
 
 #endif // INPUT_MAP_H
diff --git a/main/main.cpp b/main/main.cpp
index ece194b0f1..fe6df43364 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -403,6 +403,7 @@ Error Main::test_setup() {
 
 	GLOBAL_DEF("debug/settings/crash_handler/message",
 			String("Please include this when reporting the bug on https://github.com/godotengine/godot/issues"));
+	GLOBAL_DEF_RST("rendering/occlusion_culling/bvh_build_quality", 2);
 
 	translation_server = memnew(TranslationServer);
 
diff --git a/scene/gui/code_edit.h b/scene/gui/code_edit.h
index 4fbb5194e6..740548d559 100644
--- a/scene/gui/code_edit.h
+++ b/scene/gui/code_edit.h
@@ -248,7 +248,6 @@ private:
 	void _text_changed();
 
 protected:
-	void gui_input(const Ref<InputEvent> &p_gui_input) override;
 	void _notification(int p_what);
 
 	static void _bind_methods();
@@ -265,6 +264,7 @@ protected:
 
 public:
 	/* General overrides */
+	virtual void gui_input(const Ref<InputEvent> &p_gui_input) override;
 	virtual CursorShape get_cursor_shape(const Point2 &p_pos = Point2i()) const override;
 
 	/* Indent management */
diff --git a/scene/gui/text_edit.h b/scene/gui/text_edit.h
index e996bba983..525464c302 100644
--- a/scene/gui/text_edit.h
+++ b/scene/gui/text_edit.h
@@ -545,7 +545,6 @@ private:
 
 protected:
 	void _notification(int p_what);
-	virtual void gui_input(const Ref<InputEvent> &p_gui_input) override;
 
 	static void _bind_methods();
 
@@ -594,6 +593,7 @@ protected:
 
 public:
 	/* General overrides. */
+	virtual void gui_input(const Ref<InputEvent> &p_gui_input) override;
 	virtual Size2 get_minimum_size() const override;
 	virtual bool is_text_field() const override;
 	virtual CursorShape get_cursor_shape(const Point2 &p_pos = Point2i()) const override;
diff --git a/scene/main/viewport.cpp b/scene/main/viewport.cpp
index acad31092e..fb86d37280 100644
--- a/scene/main/viewport.cpp
+++ b/scene/main/viewport.cpp
@@ -823,7 +823,9 @@ Rect2 Viewport::get_visible_rect() const {
 }
 
 void Viewport::_update_listener_2d() {
-	AudioServer::get_singleton()->notify_listener_changed();
+	if (AudioServer::get_singleton()) {
+		AudioServer::get_singleton()->notify_listener_changed();
+	}
 }
 
 void Viewport::set_as_audio_listener_2d(bool p_enable) {
@@ -3063,7 +3065,9 @@ bool Viewport::is_audio_listener_3d() const {
 }
 
 void Viewport::_update_listener_3d() {
-	AudioServer::get_singleton()->notify_listener_changed();
+	if (AudioServer::get_singleton()) {
+		AudioServer::get_singleton()->notify_listener_changed();
+	}
 }
 
 void Viewport::_listener_transform_3d_changed_notify() {
diff --git a/servers/display_server.cpp b/servers/display_server.cpp
index 3d44484033..cdf892094d 100644
--- a/servers/display_server.cpp
+++ b/servers/display_server.cpp
@@ -605,4 +605,5 @@ DisplayServer::DisplayServer() {
 }
 
 DisplayServer::~DisplayServer() {
+	singleton = nullptr;
 }
diff --git a/servers/rendering/rasterizer_dummy.h b/servers/rendering/rasterizer_dummy.h
index f58d124140..35bb7722e7 100644
--- a/servers/rendering/rasterizer_dummy.h
+++ b/servers/rendering/rasterizer_dummy.h
@@ -197,7 +197,7 @@ public:
 
 	TypedArray<Image> bake_render_uv2(RID p_base, const Vector<RID> &p_material_overrides, const Size2i &p_image_size) override { return TypedArray<Image>(); }
 
-	bool free(RID p_rid) override { return true; }
+	bool free(RID p_rid) override { return false; }
 	void update() override {}
 	void sdfgi_set_debug_probe_select(const Vector3 &p_position, const Vector3 &p_dir) override {}
 
@@ -664,8 +664,9 @@ public:
 			DummyTexture *texture = texture_owner.getornull(p_rid);
 			texture_owner.free(p_rid);
 			memdelete(texture);
+			return true;
 		}
-		return true;
+		return false;
 	}
 
 	virtual void update_memory_info() override {}
diff --git a/tests/test_code_edit.h b/tests/test_code_edit.h
new file mode 100644
index 0000000000..9579d8ebef
--- /dev/null
+++ b/tests/test_code_edit.h
@@ -0,0 +1,813 @@
+/*************************************************************************/
+/*  test_code_edit.h                                                     */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef TEST_CODE_EDIT_H
+#define TEST_CODE_EDIT_H
+
+#include "core/input/input_map.h"
+#include "core/object/message_queue.h"
+#include "core/os/keyboard.h"
+#include "core/string/string_builder.h"
+#include "scene/gui/code_edit.h"
+#include "scene/resources/default_theme/default_theme.h"
+
+#include "tests/test_macros.h"
+
+namespace TestCodeEdit {
+
+TEST_CASE("[SceneTree][CodeEdit] line gutters") {
+	CodeEdit *code_edit = memnew(CodeEdit);
+	SceneTree::get_singleton()->get_root()->add_child(code_edit);
+
+	SUBCASE("[CodeEdit] breakpoints") {
+		SIGNAL_WATCH(code_edit, "breakpoint_toggled");
+
+		SUBCASE("[CodeEdit] draw breakpoints gutter") {
+			code_edit->set_draw_breakpoints_gutter(false);
+			CHECK_FALSE(code_edit->is_drawing_breakpoints_gutter());
+
+			code_edit->set_draw_breakpoints_gutter(true);
+			CHECK(code_edit->is_drawing_breakpoints_gutter());
+		}
+
+		SUBCASE("[CodeEdit] set line as breakpoint") {
+			/* Out of bounds. */
+			ERR_PRINT_OFF;
+
+			code_edit->set_line_as_breakpoint(-1, true);
+			CHECK_FALSE(code_edit->is_line_breakpointed(-1));
+			SIGNAL_CHECK_FALSE("breakpoint_toggled");
+
+			code_edit->set_line_as_breakpoint(1, true);
+			CHECK_FALSE(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK_FALSE("breakpoint_toggled");
+
+			ERR_PRINT_ON;
+
+			Array arg1;
+			arg1.push_back(0);
+			Array args;
+			args.push_back(arg1);
+
+			code_edit->set_line_as_breakpoint(0, true);
+			CHECK(code_edit->is_line_breakpointed(0));
+			CHECK(code_edit->get_breakpointed_lines()[0] == Variant(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			code_edit->set_line_as_breakpoint(0, false);
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+		}
+
+		SUBCASE("[CodeEdit] clear breakpointed lines") {
+			code_edit->clear_breakpointed_lines();
+			SIGNAL_CHECK_FALSE("breakpoint_toggled");
+
+			Array arg1;
+			arg1.push_back(0);
+			Array args;
+			args.push_back(arg1);
+
+			code_edit->set_line_as_breakpoint(0, true);
+			CHECK(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			code_edit->clear_breakpointed_lines();
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+		}
+
+		SUBCASE("[CodeEdit] breakpoints and set text") {
+			Array arg1;
+			arg1.push_back(0);
+			Array args;
+			args.push_back(arg1);
+
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_breakpoint(0, true);
+			CHECK(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			/* breakpoint on lines that still exist are kept. */
+			code_edit->set_text("");
+			MessageQueue::get_singleton()->flush();
+			CHECK(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK_FALSE("breakpoint_toggled");
+
+			/* breakpoint on lines that are removed should also be removed. */
+			code_edit->clear_breakpointed_lines();
+			SIGNAL_DISCARD("breakpoint_toggled")
+
+			((Array)args[0])[0] = 1;
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_breakpoint(1, true);
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			code_edit->set_text("");
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_breakpointed(1));
+			ERR_PRINT_ON;
+			SIGNAL_CHECK("breakpoint_toggled", args);
+		}
+
+		SUBCASE("[CodeEdit] breakpoints and clear") {
+			Array arg1;
+			arg1.push_back(0);
+			Array args;
+			args.push_back(arg1);
+
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_breakpoint(0, true);
+			CHECK(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			/* breakpoint on lines that still exist are removed. */
+			code_edit->clear();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			/* breakpoint on lines that are removed should also be removed. */
+			code_edit->clear_breakpointed_lines();
+			SIGNAL_DISCARD("breakpoint_toggled")
+
+			((Array)args[0])[0] = 1;
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_breakpoint(1, true);
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			code_edit->clear();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_breakpointed(1));
+			ERR_PRINT_ON;
+			SIGNAL_CHECK("breakpoint_toggled", args);
+		}
+
+		SUBCASE("[CodeEdit] breakpoints and new lines no text") {
+			Array arg1;
+			arg1.push_back(0);
+			Array args;
+			args.push_back(arg1);
+
+			/* No text moves breakpoint. */
+			code_edit->set_line_as_breakpoint(0, true);
+			CHECK(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			/* Normal. */
+			((Array)args[0])[0] = 0;
+			Array arg2;
+			arg2.push_back(1);
+			args.push_back(arg2);
+
+			SEND_GUI_ACTION(code_edit, "ui_text_newline");
+			CHECK(code_edit->get_line_count() == 2);
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			/* Non-Breaking. */
+			((Array)args[0])[0] = 1;
+			((Array)args[1])[0] = 2;
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_blank");
+			CHECK(code_edit->get_line_count() == 3);
+			CHECK_FALSE(code_edit->is_line_breakpointed(1));
+			CHECK(code_edit->is_line_breakpointed(2));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			/* Above. */
+			((Array)args[0])[0] = 2;
+			((Array)args[1])[0] = 3;
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_above");
+			CHECK(code_edit->get_line_count() == 4);
+			CHECK_FALSE(code_edit->is_line_breakpointed(2));
+			CHECK(code_edit->is_line_breakpointed(3));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+		}
+
+		SUBCASE("[CodeEdit] breakpoints and new lines with text") {
+			Array arg1;
+			arg1.push_back(0);
+			Array args;
+			args.push_back(arg1);
+
+			/* Having text does not move breakpoint. */
+			code_edit->insert_text_at_caret("text");
+			code_edit->set_line_as_breakpoint(0, true);
+			CHECK(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			/* Normal. */
+			SEND_GUI_ACTION(code_edit, "ui_text_newline");
+			CHECK(code_edit->get_line_count() == 2);
+			CHECK(code_edit->is_line_breakpointed(0));
+			CHECK_FALSE(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK_FALSE("breakpoint_toggled");
+
+			/* Non-Breaking. */
+			code_edit->set_caret_line(0);
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_blank");
+			CHECK(code_edit->get_line_count() == 3);
+			CHECK(code_edit->is_line_breakpointed(0));
+			CHECK_FALSE(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK_FALSE("breakpoint_toggled");
+
+			/* Above does move. */
+			((Array)args[0])[0] = 0;
+			Array arg2;
+			arg2.push_back(1);
+			args.push_back(arg2);
+
+			code_edit->set_caret_line(0);
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_above");
+			CHECK(code_edit->get_line_count() == 4);
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+		}
+
+		SUBCASE("[CodeEdit] breakpoints and backspace") {
+			Array arg1;
+			arg1.push_back(1);
+			Array args;
+			args.push_back(arg1);
+
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_breakpoint(1, true);
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			code_edit->set_caret_line(2);
+
+			/* backspace onto line does not remove breakpoint */
+			SEND_GUI_ACTION(code_edit, "ui_text_backspace");
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK_FALSE("breakpoint_toggled");
+
+			/* backspace on breakpointed line removes it */
+			SEND_GUI_ACTION(code_edit, "ui_text_backspace");
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_breakpointed(1));
+			ERR_PRINT_ON;
+			SIGNAL_CHECK("breakpoint_toggled", args);
+		}
+
+		SUBCASE("[CodeEdit] breakpoints and delete") {
+			Array arg1;
+			arg1.push_back(1);
+			Array args;
+			args.push_back(arg1);
+
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_breakpoint(1, true);
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+			code_edit->set_caret_line(1);
+
+			/* Delete onto breakpointed lines does not remove it. */
+			SEND_GUI_ACTION(code_edit, "ui_text_delete");
+			CHECK(code_edit->get_line_count() == 2);
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK_FALSE("breakpoint_toggled");
+
+			/* Delete moving breakpointed line up removes it. */
+			code_edit->set_caret_line(0);
+			SEND_GUI_ACTION(code_edit, "ui_text_delete");
+			CHECK(code_edit->get_line_count() == 1);
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_breakpointed(1));
+			ERR_PRINT_ON;
+			SIGNAL_CHECK("breakpoint_toggled", args);
+		}
+
+		SUBCASE("[CodeEdit] breakpoints and delete selection") {
+			Array arg1;
+			arg1.push_back(1);
+			Array args;
+			args.push_back(arg1);
+
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_breakpoint(1, true);
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			code_edit->select(0, 0, 2, 0);
+			code_edit->delete_selection();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+		}
+
+		SUBCASE("[CodeEdit] breakpoints and undo") {
+			Array arg1;
+			arg1.push_back(1);
+			Array args;
+			args.push_back(arg1);
+
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_breakpoint(1, true);
+			CHECK(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			code_edit->select(0, 0, 2, 0);
+			code_edit->delete_selection();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_breakpointed(0));
+			SIGNAL_CHECK("breakpoint_toggled", args);
+
+			/* Undo does not restore breakpoint. */
+			code_edit->undo();
+			CHECK_FALSE(code_edit->is_line_breakpointed(1));
+			SIGNAL_CHECK_FALSE("breakpoint_toggled");
+		}
+
+		SIGNAL_UNWATCH(code_edit, "breakpoint_toggled");
+	}
+
+	SUBCASE("[CodeEdit] bookmarks") {
+		SUBCASE("[CodeEdit] draw bookmarks gutter") {
+			code_edit->set_draw_bookmarks_gutter(false);
+			CHECK_FALSE(code_edit->is_drawing_bookmarks_gutter());
+
+			code_edit->set_draw_bookmarks_gutter(true);
+			CHECK(code_edit->is_drawing_bookmarks_gutter());
+		}
+
+		SUBCASE("[CodeEdit] set line as bookmarks") {
+			/* Out of bounds. */
+			ERR_PRINT_OFF;
+
+			code_edit->set_line_as_bookmarked(-1, true);
+			CHECK_FALSE(code_edit->is_line_bookmarked(-1));
+
+			code_edit->set_line_as_bookmarked(1, true);
+			CHECK_FALSE(code_edit->is_line_bookmarked(1));
+
+			ERR_PRINT_ON;
+
+			code_edit->set_line_as_bookmarked(0, true);
+			CHECK(code_edit->get_bookmarked_lines()[0] == Variant(0));
+			CHECK(code_edit->is_line_bookmarked(0));
+
+			code_edit->set_line_as_bookmarked(0, false);
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+		}
+
+		SUBCASE("[CodeEdit] clear bookmarked lines") {
+			code_edit->clear_bookmarked_lines();
+
+			code_edit->set_line_as_bookmarked(0, true);
+			CHECK(code_edit->is_line_bookmarked(0));
+
+			code_edit->clear_bookmarked_lines();
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+		}
+
+		SUBCASE("[CodeEdit] bookmarks and set text") {
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_bookmarked(0, true);
+			CHECK(code_edit->is_line_bookmarked(0));
+
+			/* bookmarks on lines that still exist are kept. */
+			code_edit->set_text("");
+			MessageQueue::get_singleton()->flush();
+			CHECK(code_edit->is_line_bookmarked(0));
+
+			/* bookmarks on lines that are removed should also be removed. */
+			code_edit->clear_bookmarked_lines();
+
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_bookmarked(1, true);
+			CHECK(code_edit->is_line_bookmarked(1));
+
+			code_edit->set_text("");
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_bookmarked(1));
+			ERR_PRINT_ON;
+		}
+
+		SUBCASE("[CodeEdit] bookmarks and clear") {
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_bookmarked(0, true);
+			CHECK(code_edit->is_line_bookmarked(0));
+
+			/* bookmarks on lines that still exist are removed. */
+			code_edit->clear();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+
+			/* bookmarks on lines that are removed should also be removed. */
+			code_edit->clear_bookmarked_lines();
+
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_bookmarked(1, true);
+			CHECK(code_edit->is_line_bookmarked(1));
+
+			code_edit->clear();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_bookmarked(1));
+			ERR_PRINT_ON;
+		}
+
+		SUBCASE("[CodeEdit] bookmarks and new lines no text") {
+			/* No text moves bookmarks. */
+			code_edit->set_line_as_bookmarked(0, true);
+			CHECK(code_edit->is_line_bookmarked(0));
+
+			/* Normal. */
+			SEND_GUI_ACTION(code_edit, "ui_text_newline");
+			CHECK(code_edit->get_line_count() == 2);
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+			CHECK(code_edit->is_line_bookmarked(1));
+
+			/* Non-Breaking. */
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_blank");
+			CHECK(code_edit->get_line_count() == 3);
+			CHECK_FALSE(code_edit->is_line_bookmarked(1));
+			CHECK(code_edit->is_line_bookmarked(2));
+
+			/* Above. */
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_above");
+			CHECK(code_edit->get_line_count() == 4);
+			CHECK_FALSE(code_edit->is_line_bookmarked(2));
+			CHECK(code_edit->is_line_bookmarked(3));
+		}
+
+		SUBCASE("[CodeEdit] bookmarks and new lines with text") {
+			/* Having text does not move bookmark. */
+			code_edit->insert_text_at_caret("text");
+			code_edit->set_line_as_bookmarked(0, true);
+			CHECK(code_edit->is_line_bookmarked(0));
+
+			/* Normal. */
+			SEND_GUI_ACTION(code_edit, "ui_text_newline");
+			CHECK(code_edit->get_line_count() == 2);
+			CHECK(code_edit->is_line_bookmarked(0));
+			CHECK_FALSE(code_edit->is_line_bookmarked(1));
+
+			/* Non-Breaking. */
+			code_edit->set_caret_line(0);
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_blank");
+			CHECK(code_edit->get_line_count() == 3);
+			CHECK(code_edit->is_line_bookmarked(0));
+			CHECK_FALSE(code_edit->is_line_bookmarked(1));
+
+			/* Above does move. */
+			code_edit->set_caret_line(0);
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_above");
+			CHECK(code_edit->get_line_count() == 4);
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+			CHECK(code_edit->is_line_bookmarked(1));
+		}
+
+		SUBCASE("[CodeEdit] bookmarks and backspace") {
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_bookmarked(1, true);
+			CHECK(code_edit->is_line_bookmarked(1));
+
+			code_edit->set_caret_line(2);
+
+			/* backspace onto line does not remove bookmark */
+			SEND_GUI_ACTION(code_edit, "ui_text_backspace");
+			CHECK(code_edit->is_line_bookmarked(1));
+
+			/* backspace on bookmarked line removes it */
+			SEND_GUI_ACTION(code_edit, "ui_text_backspace");
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_bookmarked(1));
+			ERR_PRINT_ON;
+		}
+
+		SUBCASE("[CodeEdit] bookmarks and delete") {
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_bookmarked(1, true);
+			CHECK(code_edit->is_line_bookmarked(1));
+			code_edit->set_caret_line(1);
+
+			/* Delete onto bookmarked lines does not remove it. */
+			SEND_GUI_ACTION(code_edit, "ui_text_delete");
+			CHECK(code_edit->get_line_count() == 2);
+			CHECK(code_edit->is_line_bookmarked(1));
+
+			/* Delete moving bookmarked line up removes it. */
+			code_edit->set_caret_line(0);
+			SEND_GUI_ACTION(code_edit, "ui_text_delete");
+			CHECK(code_edit->get_line_count() == 1);
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_bookmarked(1));
+			ERR_PRINT_ON;
+		}
+
+		SUBCASE("[CodeEdit] bookmarks and delete selection") {
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_bookmarked(1, true);
+			CHECK(code_edit->is_line_bookmarked(1));
+
+			code_edit->select(0, 0, 2, 0);
+			code_edit->delete_selection();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+		}
+
+		SUBCASE("[CodeEdit] bookmarks and undo") {
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_bookmarked(1, true);
+			CHECK(code_edit->is_line_bookmarked(1));
+
+			code_edit->select(0, 0, 2, 0);
+			code_edit->delete_selection();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_bookmarked(0));
+
+			/* Undo does not restore bookmark. */
+			code_edit->undo();
+			CHECK_FALSE(code_edit->is_line_bookmarked(1));
+		}
+	}
+
+	SUBCASE("[CodeEdit] executing lines") {
+		SUBCASE("[CodeEdit] draw executing lines gutter") {
+			code_edit->set_draw_executing_lines_gutter(false);
+			CHECK_FALSE(code_edit->is_drawing_executing_lines_gutter());
+
+			code_edit->set_draw_executing_lines_gutter(true);
+			CHECK(code_edit->is_drawing_executing_lines_gutter());
+		}
+
+		SUBCASE("[CodeEdit] set line as executing lines") {
+			/* Out of bounds. */
+			ERR_PRINT_OFF;
+
+			code_edit->set_line_as_executing(-1, true);
+			CHECK_FALSE(code_edit->is_line_executing(-1));
+
+			code_edit->set_line_as_executing(1, true);
+			CHECK_FALSE(code_edit->is_line_executing(1));
+
+			ERR_PRINT_ON;
+
+			code_edit->set_line_as_executing(0, true);
+			CHECK(code_edit->get_executing_lines()[0] == Variant(0));
+			CHECK(code_edit->is_line_executing(0));
+
+			code_edit->set_line_as_executing(0, false);
+			CHECK_FALSE(code_edit->is_line_executing(0));
+		}
+
+		SUBCASE("[CodeEdit] clear executing lines lines") {
+			code_edit->clear_executing_lines();
+
+			code_edit->set_line_as_executing(0, true);
+			CHECK(code_edit->is_line_executing(0));
+
+			code_edit->clear_executing_lines();
+			CHECK_FALSE(code_edit->is_line_executing(0));
+		}
+
+		SUBCASE("[CodeEdit] executing lines and set text") {
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_executing(0, true);
+			CHECK(code_edit->is_line_executing(0));
+
+			/* executing on lines that still exist are kept. */
+			code_edit->set_text("");
+			MessageQueue::get_singleton()->flush();
+			CHECK(code_edit->is_line_executing(0));
+
+			/* executing on lines that are removed should also be removed. */
+			code_edit->clear_executing_lines();
+
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_executing(1, true);
+			CHECK(code_edit->is_line_executing(1));
+
+			code_edit->set_text("");
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_executing(0));
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_executing(1));
+			ERR_PRINT_ON;
+		}
+
+		SUBCASE("[CodeEdit] executing lines and clear") {
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_executing(0, true);
+			CHECK(code_edit->is_line_executing(0));
+
+			/* executing on lines that still exist are removed. */
+			code_edit->clear();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_executing(0));
+
+			/* executing on lines that are removed should also be removed. */
+			code_edit->clear_executing_lines();
+
+			code_edit->set_text("test\nline");
+			code_edit->set_line_as_executing(1, true);
+			CHECK(code_edit->is_line_executing(1));
+
+			code_edit->clear();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_executing(0));
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_executing(1));
+			ERR_PRINT_ON;
+		}
+
+		SUBCASE("[CodeEdit] executing lines and new lines no text") {
+			/* No text moves executing lines. */
+			code_edit->set_line_as_executing(0, true);
+			CHECK(code_edit->is_line_executing(0));
+
+			/* Normal. */
+			SEND_GUI_ACTION(code_edit, "ui_text_newline");
+			CHECK(code_edit->get_line_count() == 2);
+			CHECK_FALSE(code_edit->is_line_executing(0));
+			CHECK(code_edit->is_line_executing(1));
+
+			/* Non-Breaking. */
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_blank");
+			CHECK(code_edit->get_line_count() == 3);
+			CHECK_FALSE(code_edit->is_line_executing(1));
+			CHECK(code_edit->is_line_executing(2));
+
+			/* Above. */
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_above");
+			CHECK(code_edit->get_line_count() == 4);
+			CHECK_FALSE(code_edit->is_line_executing(2));
+			CHECK(code_edit->is_line_executing(3));
+		}
+
+		SUBCASE("[CodeEdit] executing lines and new lines with text") {
+			/* Having text does not move executing lines. */
+			code_edit->insert_text_at_caret("text");
+			code_edit->set_line_as_executing(0, true);
+			CHECK(code_edit->is_line_executing(0));
+
+			/* Normal. */
+			SEND_GUI_ACTION(code_edit, "ui_text_newline");
+			CHECK(code_edit->get_line_count() == 2);
+			CHECK(code_edit->is_line_executing(0));
+			CHECK_FALSE(code_edit->is_line_executing(1));
+
+			/* Non-Breaking. */
+			code_edit->set_caret_line(0);
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_blank");
+			CHECK(code_edit->get_line_count() == 3);
+			CHECK(code_edit->is_line_executing(0));
+			CHECK_FALSE(code_edit->is_line_executing(1));
+
+			/* Above does move. */
+			code_edit->set_caret_line(0);
+			SEND_GUI_ACTION(code_edit, "ui_text_newline_above");
+			CHECK(code_edit->get_line_count() == 4);
+			CHECK_FALSE(code_edit->is_line_executing(0));
+			CHECK(code_edit->is_line_executing(1));
+		}
+
+		SUBCASE("[CodeEdit] executing lines and backspace") {
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_executing(1, true);
+			CHECK(code_edit->is_line_executing(1));
+
+			code_edit->set_caret_line(2);
+
+			/* backspace onto line does not remove executing lines. */
+			SEND_GUI_ACTION(code_edit, "ui_text_backspace");
+			CHECK(code_edit->is_line_executing(1));
+
+			/* backspace on executing line removes it */
+			SEND_GUI_ACTION(code_edit, "ui_text_backspace");
+			CHECK_FALSE(code_edit->is_line_executing(0));
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_executing(1));
+			ERR_PRINT_ON;
+		}
+
+		SUBCASE("[CodeEdit] executing lines and delete") {
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_executing(1, true);
+			CHECK(code_edit->is_line_executing(1));
+			code_edit->set_caret_line(1);
+
+			/* Delete onto executing lines does not remove it. */
+			SEND_GUI_ACTION(code_edit, "ui_text_delete");
+			CHECK(code_edit->get_line_count() == 2);
+			CHECK(code_edit->is_line_executing(1));
+
+			/* Delete moving executing line up removes it. */
+			code_edit->set_caret_line(0);
+			SEND_GUI_ACTION(code_edit, "ui_text_delete");
+			CHECK(code_edit->get_line_count() == 1);
+			ERR_PRINT_OFF;
+			CHECK_FALSE(code_edit->is_line_executing(1));
+			ERR_PRINT_ON;
+		}
+
+		SUBCASE("[CodeEdit] executing lines and delete selection") {
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_executing(1, true);
+			CHECK(code_edit->is_line_executing(1));
+
+			code_edit->select(0, 0, 2, 0);
+			code_edit->delete_selection();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_executing(0));
+		}
+
+		SUBCASE("[CodeEdit] executing lines and undo") {
+			code_edit->set_text("\n\n");
+			code_edit->set_line_as_executing(1, true);
+			CHECK(code_edit->is_line_executing(1));
+
+			code_edit->select(0, 0, 2, 0);
+			code_edit->delete_selection();
+			MessageQueue::get_singleton()->flush();
+			CHECK_FALSE(code_edit->is_line_executing(0));
+
+			/* Undo does not restore executing lines. */
+			code_edit->undo();
+			CHECK_FALSE(code_edit->is_line_executing(1));
+		}
+	}
+
+	SUBCASE("[CodeEdit] line numbers") {
+		SUBCASE("[CodeEdit] draw line numbers gutter and padding") {
+			code_edit->set_draw_line_numbers(false);
+			CHECK_FALSE(code_edit->is_draw_line_numbers_enabled());
+
+			code_edit->set_draw_line_numbers(true);
+			CHECK(code_edit->is_draw_line_numbers_enabled());
+
+			code_edit->set_line_numbers_zero_padded(false);
+			CHECK_FALSE(code_edit->is_line_numbers_zero_padded());
+
+			code_edit->set_line_numbers_zero_padded(true);
+			CHECK(code_edit->is_line_numbers_zero_padded());
+
+			code_edit->set_line_numbers_zero_padded(false);
+			CHECK_FALSE(code_edit->is_line_numbers_zero_padded());
+
+			code_edit->set_draw_line_numbers(false);
+			CHECK_FALSE(code_edit->is_draw_line_numbers_enabled());
+
+			code_edit->set_line_numbers_zero_padded(true);
+			CHECK(code_edit->is_line_numbers_zero_padded());
+		}
+	}
+
+	SUBCASE("[CodeEdit] line folding") {
+		SUBCASE("[CodeEdit] draw line folding gutter") {
+			code_edit->set_draw_fold_gutter(false);
+			CHECK_FALSE(code_edit->is_drawing_fold_gutter());
+
+			code_edit->set_draw_fold_gutter(true);
+			CHECK(code_edit->is_drawing_fold_gutter());
+		}
+	}
+
+	memdelete(code_edit);
+}
+
+} // namespace TestCodeEdit
+
+#endif // TEST_CODE_EDIT_H
diff --git a/tests/test_macros.h b/tests/test_macros.h
index a1f1932db4..bf1001fa67 100644
--- a/tests/test_macros.h
+++ b/tests/test_macros.h
@@ -31,6 +31,8 @@
 #ifndef TEST_MACROS_H
 #define TEST_MACROS_H
 
+#include "core/object/callable_method_pointer.h"
+#include "core/object/class_db.h"
 #include "core/templates/map.h"
 #include "core/variant/variant.h"
 
@@ -129,4 +131,186 @@ int register_test_command(String p_command, TestFunc p_function);
 			register_test_command(m_command, m_function);               \
 	DOCTEST_GLOBAL_NO_WARNINGS_END()
 
+// Utility macro to send an action event to a given object
+// Requires Message Queue and InputMap to be setup.
+
+#define SEND_GUI_ACTION(m_object, m_action)                                                           \
+	{                                                                                                 \
+		const List<Ref<InputEvent>> *events = InputMap::get_singleton()->action_get_events(m_action); \
+		const List<Ref<InputEvent>>::Element *first_event = events->front();                          \
+		Ref<InputEventKey> event = first_event->get();                                                \
+		event->set_pressed(true);                                                                     \
+		m_object->gui_input(event);                                                                   \
+		MessageQueue::get_singleton()->flush();                                                       \
+	}
+
+// Utility class / macros for testing signals
+//
+// Use SIGNAL_WATCH(*object, "signal_name") to start watching
+// Makes sure to call SIGNAL_UNWATCH(*object, "signal_name") to stop watching in cleanup, this is not done automatically.
+//
+// The SignalWatcher will capture all signals and their args sent between checks.
+//
+// Use SIGNAL_CHECK("signal_name"), Vector<Vector<Variant>>), to check the arguments of all fired signals.
+// The outer vector is each fired signal, the inner vector the list of arguments for that signal. Order does matter.
+//
+// Use SIGNAL_CHECK_FALSE("signal_name") to check if a signal was not fired.
+//
+// Use SIGNAL_DISCARD("signal_name") to discard records all of the given signal, use only in placed you don't need to check.
+//
+// All signals are automaticaly discared between test/sub test cases.
+
+class SignalWatcher : public Object {
+private:
+	inline static SignalWatcher *singleton;
+
+	/* Equal to: Map<String, Vector<Vector<Variant>>> */
+	Map<String, Array> _signals;
+	void _add_signal_entry(const Array &p_args, const String &p_name) {
+		if (!_signals.has(p_name)) {
+			_signals[p_name] = Array();
+		}
+		_signals[p_name].push_back(p_args);
+	}
+
+	void _signal_callback_zero(const String &p_name) {
+		Array args;
+		_add_signal_entry(args, p_name);
+	}
+
+	void _signal_callback_one(Variant p_arg1, const String &p_name) {
+		Array args;
+		args.push_back(p_arg1);
+		_add_signal_entry(args, p_name);
+	}
+
+	void _signal_callback_two(Variant p_arg1, Variant p_arg2, const String &p_name) {
+		Array args;
+		args.push_back(p_arg1);
+		args.push_back(p_arg2);
+		_add_signal_entry(args, p_name);
+	}
+
+	void _signal_callback_three(Variant p_arg1, Variant p_arg2, Variant p_arg3, const String &p_name) {
+		Array args;
+		args.push_back(p_arg1);
+		args.push_back(p_arg2);
+		args.push_back(p_arg3);
+		_add_signal_entry(args, p_name);
+	}
+
+public:
+	static SignalWatcher *get_singleton() { return singleton; }
+
+	void watch_signal(Object *p_object, const String &p_signal) {
+		Vector<Variant> args;
+		args.push_back(p_signal);
+		MethodInfo method_info;
+		ClassDB::get_signal(p_object->get_class(), p_signal, &method_info);
+		switch (method_info.arguments.size()) {
+			case 0: {
+				p_object->connect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_zero), args);
+			} break;
+			case 1: {
+				p_object->connect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_one), args);
+			} break;
+			case 2: {
+				p_object->connect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_two), args);
+			} break;
+			case 3: {
+				p_object->connect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_three), args);
+			} break;
+			default: {
+				MESSAGE("Signal ", p_signal, " arg count not supported.");
+			} break;
+		}
+	}
+
+	void unwatch_signal(Object *p_object, const String &p_signal) {
+		MethodInfo method_info;
+		ClassDB::get_signal(p_object->get_class(), p_signal, &method_info);
+		switch (method_info.arguments.size()) {
+			case 0: {
+				p_object->disconnect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_zero));
+			} break;
+			case 1: {
+				p_object->disconnect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_one));
+			} break;
+			case 2: {
+				p_object->disconnect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_two));
+			} break;
+			case 3: {
+				p_object->disconnect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_three));
+			} break;
+			default: {
+				MESSAGE("Signal ", p_signal, " arg count not supported.");
+			} break;
+		}
+	}
+
+	bool check(const String &p_name, const Array &p_args) {
+		if (!_signals.has(p_name)) {
+			MESSAGE("Signal ", p_name, " not emitted");
+			return false;
+		}
+
+		if (p_args.size() != _signals[p_name].size()) {
+			MESSAGE("Signal has " << _signals[p_name] << " expected " << p_args);
+			discard_signal(p_name);
+			return false;
+		}
+
+		bool match = true;
+		for (int i = 0; i < p_args.size(); i++) {
+			if (((Array)p_args[i]).size() != ((Array)_signals[p_name][i]).size()) {
+				MESSAGE("Signal has " << _signals[p_name][i] << " expected " << p_args[i]);
+				match = false;
+				continue;
+			}
+
+			for (int j = 0; j < ((Array)p_args[i]).size(); j++) {
+				if (((Array)p_args[i])[j] != ((Array)_signals[p_name][i])[j]) {
+					MESSAGE("Signal has " << _signals[p_name][i] << " expected " << p_args[i]);
+					match = false;
+					break;
+				}
+			}
+		}
+
+		discard_signal(p_name);
+		return match;
+	}
+
+	bool check_false(const String &p_name) {
+		bool has = _signals.has(p_name);
+		discard_signal(p_name);
+		return !has;
+	}
+
+	void discard_signal(const String &p_name) {
+		if (_signals.has(p_name)) {
+			_signals.erase(p_name);
+		}
+	}
+
+	void _clear_signals() {
+		_signals.clear();
+	}
+
+	SignalWatcher() {
+		singleton = this;
+	}
+
+	~SignalWatcher() {
+		singleton = nullptr;
+	}
+};
+
+#define SIGNAL_WATCH(m_object, m_signal) SignalWatcher::get_singleton()->watch_signal(m_object, m_signal);
+#define SIGNAL_UNWATCH(m_object, m_signal) SignalWatcher::get_singleton()->unwatch_signal(m_object, m_signal);
+
+#define SIGNAL_CHECK(m_signal, m_args) CHECK(SignalWatcher::get_singleton()->check(m_signal, m_args));
+#define SIGNAL_CHECK_FALSE(m_signal) CHECK(SignalWatcher::get_singleton()->check_false(m_signal));
+#define SIGNAL_DISCARD(m_signal) SignalWatcher::get_singleton()->discard_signal(m_signal);
+
 #endif // TEST_MACROS_H
diff --git a/tests/test_main.cpp b/tests/test_main.cpp
index d0466d1e2d..e4aa4c38ff 100644
--- a/tests/test_main.cpp
+++ b/tests/test_main.cpp
@@ -37,6 +37,7 @@
 #include "test_astar.h"
 #include "test_basis.h"
 #include "test_class_db.h"
+#include "test_code_edit.h"
 #include "test_color.h"
 #include "test_command_queue.h"
 #include "test_config_file.h"
@@ -146,3 +147,153 @@ int test_main(int argc, char *argv[]) {
 
 	return test_context.run();
 }
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#include "servers/navigation_server_2d.h"
+#include "servers/navigation_server_3d.h"
+#include "servers/rendering/rendering_server_default.h"
+
+struct GodotTestCaseListener : public doctest::IReporter {
+	GodotTestCaseListener(const doctest::ContextOptions &p_in) {}
+
+	SignalWatcher *signal_watcher = nullptr;
+
+	PhysicsServer3D *physics_3d_server = nullptr;
+	PhysicsServer2D *physics_2d_server = nullptr;
+	NavigationServer3D *navigation_3d_server = nullptr;
+	NavigationServer2D *navigation_2d_server = nullptr;
+
+	void test_case_start(const doctest::TestCaseData &p_in) override {
+		SignalWatcher::get_singleton()->_clear_signals();
+
+		String name = String(p_in.m_name);
+
+		if (name.find("[SceneTree]") != -1) {
+			GLOBAL_DEF("memory/limits/multithreaded_server/rid_pool_prealloc", 60);
+			memnew(MessageQueue);
+
+			GLOBAL_DEF("internationalization/rendering/force_right_to_left_layout_direction", false);
+			memnew(TextServerManager);
+			Error err = OK;
+			TextServerManager::initialize(0, err);
+
+			OS::get_singleton()->set_has_server_feature_callback(nullptr);
+			for (int i = 0; i < DisplayServer::get_create_function_count(); i++) {
+				if (String("headless") == DisplayServer::get_create_function_name(i)) {
+					DisplayServer::create(i, "", DisplayServer::WindowMode::WINDOW_MODE_MINIMIZED, DisplayServer::VSyncMode::VSYNC_ENABLED, 0, Vector2i(0, 0), err);
+					break;
+				}
+			}
+			memnew(RenderingServerDefault());
+			RenderingServerDefault::get_singleton()->init();
+			RenderingServerDefault::get_singleton()->set_render_loop_enabled(false);
+
+			physics_3d_server = PhysicsServer3DManager::new_default_server();
+			physics_3d_server->init();
+
+			physics_2d_server = PhysicsServer2DManager::new_default_server();
+			physics_2d_server->init();
+
+			navigation_3d_server = NavigationServer3DManager::new_default_server();
+			navigation_2d_server = memnew(NavigationServer2D);
+
+			memnew(InputMap);
+			InputMap::get_singleton()->load_default();
+
+			make_default_theme(false, Ref<Font>());
+
+			memnew(SceneTree);
+			SceneTree::get_singleton()->initialize();
+			return;
+		}
+	}
+
+	void test_case_end(const doctest::CurrentTestCaseStats &) override {
+		if (SceneTree::get_singleton()) {
+			SceneTree::get_singleton()->finalize();
+		}
+
+		if (MessageQueue::get_singleton()) {
+			MessageQueue::get_singleton()->flush();
+		}
+
+		if (SceneTree::get_singleton()) {
+			memdelete(SceneTree::get_singleton());
+		}
+
+		clear_default_theme();
+
+		if (TextServerManager::get_singleton()) {
+			memdelete(TextServerManager::get_singleton());
+		}
+
+		if (navigation_3d_server) {
+			memdelete(navigation_3d_server);
+			navigation_3d_server = nullptr;
+		}
+
+		if (navigation_2d_server) {
+			memdelete(navigation_2d_server);
+			navigation_2d_server = nullptr;
+		}
+
+		if (physics_3d_server) {
+			physics_3d_server->finish();
+			memdelete(physics_3d_server);
+			physics_3d_server = nullptr;
+		}
+
+		if (physics_2d_server) {
+			physics_2d_server->finish();
+			memdelete(physics_2d_server);
+			physics_2d_server = nullptr;
+		}
+
+		if (RenderingServer::get_singleton()) {
+			RenderingServer::get_singleton()->sync();
+			RenderingServer::get_singleton()->global_variables_clear();
+			RenderingServer::get_singleton()->finish();
+			memdelete(RenderingServer::get_singleton());
+		}
+
+		if (DisplayServer::get_singleton()) {
+			memdelete(DisplayServer::get_singleton());
+		}
+
+		if (InputMap::get_singleton()) {
+			memdelete(InputMap::get_singleton());
+		}
+
+		if (MessageQueue::get_singleton()) {
+			MessageQueue::get_singleton()->flush();
+			memdelete(MessageQueue::get_singleton());
+		}
+	}
+
+	void test_run_start() override {
+		signal_watcher = memnew(SignalWatcher);
+	}
+
+	void test_run_end(const doctest::TestRunStats &) override {
+		memdelete(signal_watcher);
+	}
+
+	void test_case_reenter(const doctest::TestCaseData &) override {
+		SignalWatcher::get_singleton()->_clear_signals();
+	}
+
+	void subcase_start(const doctest::SubcaseSignature &) override {
+		SignalWatcher::get_singleton()->_clear_signals();
+	}
+
+	void report_query(const doctest::QueryData &) override {}
+	void test_case_exception(const doctest::TestCaseException &) override {}
+	void subcase_end() override {}
+
+	void log_assert(const doctest::AssertData &in) override {}
+	void log_message(const doctest::MessageData &) override {}
+	void test_case_skipped(const doctest::TestCaseData &) override {}
+};
+
+REGISTER_LISTENER("GodotTestCaseListener", 1, GodotTestCaseListener);