mv element.io @types __mocks__/ debian docker module_system/ playwright res src test webapp Dockerfile .dockerignore .eslintignore .stylelintrc.cjs babel.config.cjs recorder-worklet-loader.cjs .modernizr.json components.json config.json config.sample.json package.json project.json tsconfig.json tsconfig.module_system.json jest.config.ts playwright.config.ts webpack.config.ts build_config.sample.yaml apps/web/

mkdir apps/web/scripts
mv scripts/{cleanup.sh,ci_package.sh,copy-res.ts,deploy.py,package.sh} apps/web/scripts

And a couple of gitignore tweaks

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

apps/web/test/unit-tests/editor/diff-test.ts

@@ -0,0 +1,137 @@
+/*
+Copyright 2024 New Vector Ltd.
+Copyright 2019 The Matrix.org Foundation C.I.C.
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
+import { diffDeletion, diffAtCaret } from "../../../src/editor/diff";
+
+describe("editor/diff", function () {
+    describe("diffDeletion", function () {
+        describe("with a single character removed", function () {
+            it("at start of string", function () {
+                const diff = diffDeletion("hello", "ello");
+                expect(diff.at).toBe(0);
+                expect(diff.removed).toBe("h");
+            });
+            it("in middle of string", function () {
+                const diff = diffDeletion("hello", "hllo");
+                expect(diff.at).toBe(1);
+                expect(diff.removed).toBe("e");
+            });
+            it("in middle of string with duplicate character", function () {
+                const diff = diffDeletion("hello", "helo");
+                expect(diff.at).toBe(3);
+                expect(diff.removed).toBe("l");
+            });
+            it("at end of string", function () {
+                const diff = diffDeletion("hello", "hell");
+                expect(diff.at).toBe(4);
+                expect(diff.removed).toBe("o");
+            });
+        });
+        describe("with a multiple removed", function () {
+            it("at start of string", function () {
+                const diff = diffDeletion("hello", "llo");
+                expect(diff.at).toBe(0);
+                expect(diff.removed).toBe("he");
+            });
+            it("removing whole string", function () {
+                const diff = diffDeletion("hello", "");
+                expect(diff.at).toBe(0);
+                expect(diff.removed).toBe("hello");
+            });
+            it("in middle of string", function () {
+                const diff = diffDeletion("hello", "hlo");
+                expect(diff.at).toBe(1);
+                expect(diff.removed).toBe("el");
+            });
+            it("in middle of string with duplicate character", function () {
+                const diff = diffDeletion("hello", "heo");
+                expect(diff.at).toBe(2);
+                expect(diff.removed).toBe("ll");
+            });
+            it("at end of string", function () {
+                const diff = diffDeletion("hello", "hel");
+                expect(diff.at).toBe(3);
+                expect(diff.removed).toBe("lo");
+            });
+        });
+    });
+    describe("diffAtCaret", function () {
+        it("insert at start", function () {
+            const diff = diffAtCaret("world", "hello world", 6);
+            expect(diff.at).toBe(0);
+            expect(diff.added).toBe("hello ");
+            expect(diff.removed).toBeFalsy();
+        });
+        it("insert at end", function () {
+            const diff = diffAtCaret("hello", "hello world", 11);
+            expect(diff.at).toBe(5);
+            expect(diff.added).toBe(" world");
+            expect(diff.removed).toBeFalsy();
+        });
+        it("insert in middle", function () {
+            const diff = diffAtCaret("hello world", "hello cruel world", 12);
+            expect(diff.at).toBe(6);
+            expect(diff.added).toBe("cruel ");
+            expect(diff.removed).toBeFalsy();
+        });
+        it("replace at start", function () {
+            const diff = diffAtCaret("morning, world!", "afternoon, world!", 9);
+            expect(diff.at).toBe(0);
+            expect(diff.removed).toBe("morning");
+            expect(diff.added).toBe("afternoon");
+        });
+        it("replace at end", function () {
+            const diff = diffAtCaret("morning, world!", "morning, mars?", 14);
+            expect(diff.at).toBe(9);
+            expect(diff.removed).toBe("world!");
+            expect(diff.added).toBe("mars?");
+        });
+        it("replace in middle", function () {
+            const diff = diffAtCaret("morning, blue planet", "morning, red planet", 12);
+            expect(diff.at).toBe(9);
+            expect(diff.removed).toBe("blue");
+            expect(diff.added).toBe("red");
+        });
+        it("remove at start of string", function () {
+            const diff = diffAtCaret("hello", "ello", 0);
+            expect(diff.at).toBe(0);
+            expect(diff.removed).toBe("h");
+            expect(diff.added).toBeFalsy();
+        });
+        it("removing whole string", function () {
+            const diff = diffAtCaret("hello", "", 0);
+            expect(diff.at).toBe(0);
+            expect(diff.removed).toBe("hello");
+            expect(diff.added).toBeFalsy();
+        });
+        it("remove in middle of string", function () {
+            const diff = diffAtCaret("hello", "hllo", 1);
+            expect(diff.at).toBe(1);
+            expect(diff.removed).toBe("e");
+            expect(diff.added).toBeFalsy();
+        });
+        it("forwards remove in middle of string", function () {
+            const diff = diffAtCaret("hello", "hell", 4);
+            expect(diff.at).toBe(4);
+            expect(diff.removed).toBe("o");
+            expect(diff.added).toBeFalsy();
+        });
+        it("forwards remove in middle of string with duplicate character", function () {
+            const diff = diffAtCaret("hello", "helo", 3);
+            expect(diff.at).toBe(3);
+            expect(diff.removed).toBe("l");
+            expect(diff.added).toBeFalsy();
+        });
+        it("remove at end of string", function () {
+            const diff = diffAtCaret("hello", "hell", 4);
+            expect(diff.at).toBe(4);
+            expect(diff.removed).toBe("o");
+            expect(diff.added).toBeFalsy();
+        });
+    });
+});