diff --git a/apps/server/src/services/tree.spec.ts b/apps/server/src/services/tree.spec.ts
index 1efd9acbe..710715262 100644
--- a/apps/server/src/services/tree.spec.ts
+++ b/apps/server/src/services/tree.spec.ts
@@ -1,11 +1,11 @@
-import { beforeEach, describe, expect, it, vi } from "vitest";
-import { note, NoteBuilder } from "../test/becca_mocking.js";
+import {beforeEach, describe, expect, it, vi} from "vitest";
+import {note, NoteBuilder} from "../test/becca_mocking.js";
 import becca from "../becca/becca.js";
 import BBranch from "../becca/entities/bbranch.js";
 import BNote from "../becca/entities/bnote.js";
 import tree from "./tree.js";
 import cls from "./cls.js";
-import { buildNote } from "../test/becca_easy_mocking.js";
+import {buildNote} from "../test/becca_easy_mocking.js";
 
 describe("Tree", () => {
     let rootNote!: NoteBuilder;
@@ -48,6 +48,23 @@ describe("Tree", () => {
             };
         });
     });
+    it("sorts notes by title (base case)", () => {
+
+            const note = buildNote({
+                children: [
+                    {title: "1"},
+                    {title: "2"},
+                    {title: "3"},
+                ],
+                "#sorted": "",
+            });
+            cls.init(() => {
+                tree.sortNotesIfNeeded(note.noteId);
+            });
+            const orderedTitles = note.children.map((child) => child.title);
+            expect(orderedTitles).toStrictEqual(["1", "2", "3"]);
+        }
+    )
 
     it("custom sort order is idempotent", () => {
         rootNote.label("sorted", "order");
@@ -56,13 +73,15 @@ describe("Tree", () => {
         for (let i = 0; i <= 5; i++) {
             rootNote.child(note(String(i)).label("order", String(i)));
         }
+        rootNote.child(note("top").label("top"));
+        rootNote.child(note("bottom").label("bottom"));
 
         // Add a few values which have no defined order.
         for (let i = 6; i < 10; i++) {
             rootNote.child(note(String(i)));
         }
 
-        const expectedOrder = [ "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" ];
+        const expectedOrder = ["top", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "bottom"];
 
         // Sort a few times to ensure that the resulting order is the same.
         for (let i = 0; i < 5; i++) {
@@ -78,12 +97,12 @@ describe("Tree", () => {
     it("pins to the top and bottom", () => {
         const note = buildNote({
             children: [
-                { title: "bottom", "#bottom": "" },
-                { title: "5" },
-                { title: "3" },
-                { title: "2" },
-                { title: "1" },
-                { title: "top", "#top": "" }
+                {title: "bottom", "#bottom": ""},
+                {title: "5"},
+                {title: "3"},
+                {title: "2"},
+                {title: "1"},
+                {title: "top", "#top": ""}
             ],
             "#sorted": ""
         });
@@ -91,18 +110,18 @@ describe("Tree", () => {
             tree.sortNotesIfNeeded(note.noteId);
         });
         const orderedTitles = note.children.map((child) => child.title);
-        expect(orderedTitles).toStrictEqual([ "top", "1", "2", "3", "5", "bottom" ]);
+        expect(orderedTitles).toStrictEqual(["top", "1", "2", "3", "5", "bottom"]);
     });
 
     it("pins to the top and bottom in reverse order", () => {
         const note = buildNote({
             children: [
-                { title: "bottom", "#bottom": "" },
-                { title: "1" },
-                { title: "2" },
-                { title: "3" },
-                { title: "5" },
-                { title: "top", "#top": "" }
+                {title: "bottom", "#bottom": ""},
+                {title: "1"},
+                {title: "2"},
+                {title: "3"},
+                {title: "5"},
+                {title: "top", "#top": ""}
             ],
             "#sorted": "",
             "#sortDirection": "desc"
@@ -111,6 +130,50 @@ describe("Tree", () => {
             tree.sortNotesIfNeeded(note.noteId);
         });
         const orderedTitles = note.children.map((child) => child.title);
-        expect(orderedTitles).toStrictEqual([ "top", "5", "3", "2", "1", "bottom" ]);
+        expect(orderedTitles).toStrictEqual(["top", "5", "3", "2", "1", "bottom"]);
     });
+
+    it("keeps folder notes on top when #sortFolderFirst is set, but not above #top", () => {
+        const note = buildNote({
+            children: [
+                {title: "bottom", "#bottom": ""},
+                {title: "1"},
+                {title: "2"},
+                {title: "p1", children: [{title: "1.1"}, {title: "1.2"}]},
+                {title: "p2", children: [{title: "2.1"}, {title: "2.2"}]},
+                {title: "3"},
+                {title: "5"},
+                {title: "top", "#top": ""}
+            ],
+            "#sorted": "",
+            "#sortFoldersFirst": ""
+        });
+        cls.init(() => {
+            tree.sortNotesIfNeeded(note.noteId);
+        });
+        const orderedTitles = note.children.map((child) => child.title);
+        expect(orderedTitles).toStrictEqual(["top", "p1", "p2", "1", "2", "3", "5", "bottom"]);
+    });
+
+    it("sorts notes accordingly when #sortNatural is set", () => {
+            const note = buildNote({
+                children: [
+                    {title: "bottom", "#bottom": ""},
+                    {title: "1"},
+                    {title: "2"},
+                    {title: "10"},
+                    {title: "20"},
+                    {title: "3"},
+                    {title: "top", "#top": ""}
+                ],
+                "#sorted": "",
+                "#sortNatural": ""
+            });
+            cls.init(() => {
+                tree.sortNotesIfNeeded(note.noteId);
+            });
+            const orderedTitles = note.children.map((child) => child.title);
+            expect(orderedTitles).toStrictEqual(["top", "1", "2", "3", "10", "20", "bottom"]);
+        }
+    )
 });