74 lines
2.7 KiB
TypeScript
74 lines
2.7 KiB
TypeScript
/*
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Copyright 2024 New Vector Ltd.
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Copyright 2019 The Matrix.org Foundation C.I.C.
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SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
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Please see LICENSE files in the repository root for full details.
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*/
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import EditorModel from "../../src/editor/model";
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import { createPartCreator, createRenderer } from "./mock";
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describe("editor/position", function () {
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it("move first position backward in empty model", function () {
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const model = new EditorModel([], createPartCreator(), createRenderer());
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const pos = model.positionForOffset(0, true);
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const pos2 = pos.backwardsWhile(model, () => true);
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expect(pos).toBe(pos2);
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});
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it("move first position forwards in empty model", function () {
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const model = new EditorModel([], createPartCreator(), createRenderer());
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const pos = model.positionForOffset(0, true);
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const pos2 = pos.forwardsWhile(model, () => true);
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expect(pos).toBe(pos2);
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});
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it("move forwards within one part", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello")], pc, createRenderer());
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const pos = model.positionForOffset(1);
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let n = 3;
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const pos2 = pos.forwardsWhile(model, () => {
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n -= 1;
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return n >= 0;
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});
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expect(pos2.index).toBe(0);
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expect(pos2.offset).toBe(4);
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});
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it("move forwards crossing to other part", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello"), pc.plain(" world")], pc, createRenderer());
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const pos = model.positionForOffset(4);
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let n = 3;
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const pos2 = pos.forwardsWhile(model, () => {
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n -= 1;
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return n >= 0;
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});
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expect(pos2.index).toBe(1);
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expect(pos2.offset).toBe(2);
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});
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it("move backwards within one part", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello")], pc, createRenderer());
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const pos = model.positionForOffset(4);
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let n = 3;
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const pos2 = pos.backwardsWhile(model, () => {
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n -= 1;
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return n >= 0;
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});
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expect(pos2.index).toBe(0);
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expect(pos2.offset).toBe(1);
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});
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it("move backwards crossing to other part", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello"), pc.plain(" world")], pc, createRenderer());
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const pos = model.positionForOffset(7);
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let n = 3;
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const pos2 = pos.backwardsWhile(model, () => {
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n -= 1;
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return n >= 0;
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});
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expect(pos2.index).toBe(0);
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expect(pos2.offset).toBe(4);
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});
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});
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