element-web-Github/test/unit-tests/editor/range-test.ts

105 lines
4.6 KiB
TypeScript
Raw Normal View History

/*
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";
2021-06-29 20:11:58 +08:00
import { createPartCreator, createRenderer } from "./mock";
const pillChannel = "#riot-dev:matrix.org";
2022-12-12 19:24:14 +08:00
describe("editor/range", function () {
it("range on empty model", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([], pc, renderer);
2022-12-12 19:24:14 +08:00
const range = model.startRange(model.positionForOffset(0, true)); // after "world"
let called = false;
2022-12-12 19:24:14 +08:00
range.expandBackwardsWhile((chr) => {
called = true;
return true;
});
expect(called).toBe(false);
expect(range.text).toBe("");
});
2022-12-12 19:24:14 +08:00
it("range replace within a part", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([pc.plain("hello world!!!!")], pc, renderer);
2022-12-12 19:24:14 +08:00
const range = model.startRange(model.positionForOffset(11)); // after "world"
range.expandBackwardsWhile((index, offset) => model.parts[index].text[offset] !== " ");
expect(range.text).toBe("world");
range.replace([pc.roomPill(pillChannel)]);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello ");
expect(model.parts[1].type).toBe("room-pill");
expect(model.parts[1].text).toBe(pillChannel);
expect(model.parts[2].type).toBe("plain");
expect(model.parts[2].text).toBe("!!!!");
expect(model.parts.length).toBe(3);
});
2022-12-12 19:24:14 +08:00
it("range replace across parts", function () {
const renderer = createRenderer();
const pc = createPartCreator();
2022-12-12 19:24:14 +08:00
const model = new EditorModel(
[pc.plain("try to re"), pc.plain("pla"), pc.plain("ce "), pc.plain("me")],
pc,
renderer,
);
const range = model.startRange(model.positionForOffset(14)); // after "replace"
range.expandBackwardsWhile((index, offset) => model.parts[index].text[offset] !== " ");
expect(range.text).toBe("replace");
range.replace([pc.roomPill(pillChannel)]);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("try to ");
expect(model.parts[1].type).toBe("room-pill");
expect(model.parts[1].text).toBe(pillChannel);
expect(model.parts[2].type).toBe("plain");
expect(model.parts[2].text).toBe(" me");
expect(model.parts.length).toBe(3);
});
// bug found while implementing tab completion
2022-12-12 19:24:14 +08:00
it("replace a part with an identical part with start position at end of previous part", function () {
const renderer = createRenderer();
const pc = createPartCreator();
2022-12-12 19:24:14 +08:00
const model = new EditorModel([pc.plain("hello "), pc.pillCandidate("man")], pc, renderer);
const range = model.startRange(model.positionForOffset(9, true)); // before "man"
range.expandBackwardsWhile((index, offset) => model.parts[index].text[offset] !== " ");
expect(range.text).toBe("man");
range.replace([pc.pillCandidate(range.text)]);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello ");
expect(model.parts[1].type).toBe("pill-candidate");
expect(model.parts[1].text).toBe("man");
expect(model.parts.length).toBe(2);
});
2022-12-12 19:24:14 +08:00
it("range trim spaces off both ends", () => {
const renderer = createRenderer();
const pc = createPartCreator();
2022-12-12 19:24:14 +08:00
const model = new EditorModel([pc.plain("abc abc abc")], pc, renderer);
const range = model.startRange(
model.positionForOffset(3, false), // at end of first `abc`
model.positionForOffset(8, false), // at start of last `abc`
);
expect(range.parts[0].text).toBe(" abc ");
range.trim();
expect(range.parts[0].text).toBe("abc");
});
// test for edge case when the selection just consists of whitespace
2022-12-12 19:24:14 +08:00
it("range trim just whitespace", () => {
const renderer = createRenderer();
const pc = createPartCreator();
const whitespace = " \n \n\n";
2022-12-12 19:24:14 +08:00
const model = new EditorModel([pc.plain(whitespace)], pc, renderer);
const range = model.startRange(model.positionForOffset(0, false), model.getPositionAtEnd());
expect(range.text).toBe(whitespace);
range.trim();
expect(range.text).toBe("");
});
});