✨ Import text-editor code into the repository

frontend/text-editor/editor/commands/CommandMutations.test.js

@@ -0,0 +1,71 @@
+import { describe, test, expect } from 'vitest';
+import CommandMutations from './CommandMutations';
+
+describe("CommandMutations", () => {
+  test("should create a new CommandMutations", () => {
+    const mutations = new CommandMutations();
+    expect(mutations).toHaveProperty("added");
+    expect(mutations).toHaveProperty("updated");
+    expect(mutations).toHaveProperty("removed");
+  });
+
+  test("should create an initialized new CommandMutations", () => {
+    const mutations = new CommandMutations([1], [2], [3]);
+    expect(mutations.added.size).toBe(1);
+    expect(mutations.updated.size).toBe(1);
+    expect(mutations.removed.size).toBe(1);
+    expect(mutations.added.has(1)).toBe(true);
+    expect(mutations.updated.has(2)).toBe(true);
+    expect(mutations.removed.has(3)).toBe(true);
+  });
+
+  test("should add an added node to a CommandMutations", () => {
+    const mutations = new CommandMutations();
+    mutations.add(1);
+    expect(mutations.added.has(1)).toBe(true);
+  });
+
+  test("should add an updated node to a CommandMutations", () => {
+    const mutations = new CommandMutations();
+    mutations.update(1);
+    expect(mutations.updated.has(1)).toBe(true);
+  });
+
+  test("should add an removed node to a CommandMutations", () => {
+    const mutations = new CommandMutations();
+    mutations.remove(1);
+    expect(mutations.removed.has(1)).toBe(true);
+  });
+
+  test("should clear a CommandMutations", () => {
+    const mutations = new CommandMutations();
+    mutations.add(1);
+    mutations.update(2);
+    mutations.remove(3);
+    expect(mutations.added.has(1)).toBe(true);
+    expect(mutations.added.size).toBe(1);
+    expect(mutations.updated.has(2)).toBe(true);
+    expect(mutations.updated.size).toBe(1);
+    expect(mutations.removed.has(3)).toBe(true);
+    expect(mutations.removed.size).toBe(1);
+
+    mutations.clear();
+    expect(mutations.added.size).toBe(0);
+    expect(mutations.added.has(1)).toBe(false);
+    expect(mutations.updated.size).toBe(0);
+    expect(mutations.updated.has(1)).toBe(false);
+    expect(mutations.removed.size).toBe(0);
+    expect(mutations.removed.has(1)).toBe(false);
+  });
+
+  test("should dispose a CommandMutations", () => {
+    const mutations = new CommandMutations();
+    mutations.add(1);
+    mutations.update(2);
+    mutations.remove(3);
+    mutations.dispose();
+    expect(mutations.added).toBe(null);
+    expect(mutations.updated).toBe(null);
+    expect(mutations.removed).toBe(null);
+  })
+});