element-web/test/unit-tests/editor/position-test.ts
Michael Telatynski f0ee7f7905
Merge matrix-react-sdk into element-web
Merge remote-tracking branch 'repomerge/t3chguy/repomerge' into t3chguy/repo-merge

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
2024-10-15 15:32:09 +01:00

73 lines
2.7 KiB
TypeScript

/*
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
Please see LICENSE files in the repository root for full details.
*/
import EditorModel from "../../../src/editor/model";
import { createPartCreator, createRenderer } from "./mock";
describe("editor/position", function () {
it("move first position backward in empty model", function () {
const model = new EditorModel([], createPartCreator(), createRenderer());
const pos = model.positionForOffset(0, true);
const pos2 = pos.backwardsWhile(model, () => true);
expect(pos).toBe(pos2);
});
it("move first position forwards in empty model", function () {
const model = new EditorModel([], createPartCreator(), createRenderer());
const pos = model.positionForOffset(0, true);
const pos2 = pos.forwardsWhile(model, () => true);
expect(pos).toBe(pos2);
});
it("move forwards within one part", function () {
const pc = createPartCreator();
const model = new EditorModel([pc.plain("hello")], pc, createRenderer());
const pos = model.positionForOffset(1);
let n = 3;
const pos2 = pos.forwardsWhile(model, () => {
n -= 1;
return n >= 0;
});
expect(pos2.index).toBe(0);
expect(pos2.offset).toBe(4);
});
it("move forwards crossing to other part", function () {
const pc = createPartCreator();
const model = new EditorModel([pc.plain("hello"), pc.plain(" world")], pc, createRenderer());
const pos = model.positionForOffset(4);
let n = 3;
const pos2 = pos.forwardsWhile(model, () => {
n -= 1;
return n >= 0;
});
expect(pos2.index).toBe(1);
expect(pos2.offset).toBe(2);
});
it("move backwards within one part", function () {
const pc = createPartCreator();
const model = new EditorModel([pc.plain("hello")], pc, createRenderer());
const pos = model.positionForOffset(4);
let n = 3;
const pos2 = pos.backwardsWhile(model, () => {
n -= 1;
return n >= 0;
});
expect(pos2.index).toBe(0);
expect(pos2.offset).toBe(1);
});
it("move backwards crossing to other part", function () {
const pc = createPartCreator();
const model = new EditorModel([pc.plain("hello"), pc.plain(" world")], pc, createRenderer());
const pos = model.positionForOffset(7);
let n = 3;
const pos2 = pos.backwardsWhile(model, () => {
n -= 1;
return n >= 0;
});
expect(pos2.index).toBe(0);
expect(pos2.offset).toBe(4);
});
});