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xterm.js/src/BufferLine.test.ts
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Daniel Imms 5c8c680dac Fix feedback
2019-04-01 00:01:41 -07:00

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/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*/
import * as chai from 'chai';
import { BufferLine, CellData, ContentMasks } from './BufferLine';
import { CharData, IBufferLine } from './Types';
import { NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE, DEFAULT_ATTR } from './Buffer';
class TestBufferLine extends BufferLine {
public get combined(): {[index: number]: string} {
return this._combined;
}
public toArray(): CharData[] {
const result = [];
for (let i = 0; i < this.length; ++i) {
result.push(this.loadCell(i, new CellData()).getAsCharData());
}
return result;
}
}
describe('CellData', () => {
it('CharData <--> CellData equality', () => {
const cell = new CellData();
// ASCII
cell.setFromCharData([123, 'a', 1, 'a'.charCodeAt(0)]);
chai.assert.deepEqual(cell.getAsCharData(), [123, 'a', 1, 'a'.charCodeAt(0)]);
chai.assert.equal(cell.isCombined(), 0);
// combining
cell.setFromCharData([123, 'e\u0301', 1, '\u0301'.charCodeAt(0)]);
chai.assert.deepEqual(cell.getAsCharData(), [123, 'e\u0301', 1, '\u0301'.charCodeAt(0)]);
chai.assert.equal(cell.isCombined(), ContentMasks.IS_COMBINED);
// surrogate
cell.setFromCharData([123, '𝄞', 1, 0x1D11E]);
chai.assert.deepEqual(cell.getAsCharData(), [123, '𝄞', 1, 0x1D11E]);
chai.assert.equal(cell.isCombined(), 0);
// surrogate + combining
cell.setFromCharData([123, '𓂀\u0301', 1, '𓂀\u0301'.charCodeAt(2)]);
chai.assert.deepEqual(cell.getAsCharData(), [123, '𓂀\u0301', 1, '𓂀\u0301'.charCodeAt(2)]);
chai.assert.equal(cell.isCombined(), ContentMasks.IS_COMBINED);
// wide char
cell.setFromCharData([123, '１', 2, '１'.charCodeAt(0)]);
chai.assert.deepEqual(cell.getAsCharData(), [123, '１', 2, '１'.charCodeAt(0)]);
chai.assert.equal(cell.isCombined(), 0);
});
});
describe('BufferLine', function(): void {
it('ctor', function(): void {
let line: IBufferLine = new TestBufferLine(0);
chai.expect(line.length).equals(0);
chai.expect(line.isWrapped).equals(false);
line = new TestBufferLine(10);
chai.expect(line.length).equals(10);
chai.expect(line.loadCell(0, new CellData()).getAsCharData()).eql([0, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]);
chai.expect(line.isWrapped).equals(false);
line = new TestBufferLine(10, null, true);
chai.expect(line.length).equals(10);
chai.expect(line.loadCell(0, new CellData()).getAsCharData()).eql([0, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]);
chai.expect(line.isWrapped).equals(true);
line = new TestBufferLine(10, CellData.fromCharData([123, 'a', 456, 'a'.charCodeAt(0)]), true);
chai.expect(line.length).equals(10);
chai.expect(line.loadCell(0, new CellData()).getAsCharData()).eql([123, 'a', 456, 'a'.charCodeAt(0)]);
chai.expect(line.isWrapped).equals(true);
});
it('insertCells', function(): void {
const line = new TestBufferLine(3);
line.setCell(0, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
line.setCell(1, CellData.fromCharData([2, 'b', 0, 'b'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([3, 'c', 0, 'c'.charCodeAt(0)]));
line.insertCells(1, 3, CellData.fromCharData([4, 'd', 0, 'd'.charCodeAt(0)]));
chai.expect(line.toArray()).eql([
[1, 'a', 0, 'a'.charCodeAt(0)],
[4, 'd', 0, 'd'.charCodeAt(0)],
[4, 'd', 0, 'd'.charCodeAt(0)]
]);
});
it('deleteCells', function(): void {
const line = new TestBufferLine(5);
line.setCell(0, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
line.setCell(1, CellData.fromCharData([2, 'b', 0, 'b'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([3, 'c', 0, 'c'.charCodeAt(0)]));
line.setCell(3, CellData.fromCharData([4, 'd', 0, 'd'.charCodeAt(0)]));
line.setCell(4, CellData.fromCharData([5, 'e', 0, 'e'.charCodeAt(0)]));
line.deleteCells(1, 2, CellData.fromCharData([6, 'f', 0, 'f'.charCodeAt(0)]));
chai.expect(line.toArray()).eql([
[1, 'a', 0, 'a'.charCodeAt(0)],
[4, 'd', 0, 'd'.charCodeAt(0)],
[5, 'e', 0, 'e'.charCodeAt(0)],
[6, 'f', 0, 'f'.charCodeAt(0)],
[6, 'f', 0, 'f'.charCodeAt(0)]
]);
});
it('replaceCells', function(): void {
const line = new TestBufferLine(5);
line.setCell(0, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
line.setCell(1, CellData.fromCharData([2, 'b', 0, 'b'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([3, 'c', 0, 'c'.charCodeAt(0)]));
line.setCell(3, CellData.fromCharData([4, 'd', 0, 'd'.charCodeAt(0)]));
line.setCell(4, CellData.fromCharData([5, 'e', 0, 'e'.charCodeAt(0)]));
line.replaceCells(2, 4, CellData.fromCharData([6, 'f', 0, 'f'.charCodeAt(0)]));
chai.expect(line.toArray()).eql([
[1, 'a', 0, 'a'.charCodeAt(0)],
[2, 'b', 0, 'b'.charCodeAt(0)],
[6, 'f', 0, 'f'.charCodeAt(0)],
[6, 'f', 0, 'f'.charCodeAt(0)],
[5, 'e', 0, 'e'.charCodeAt(0)]
]);
});
it('fill', function(): void {
const line = new TestBufferLine(5);
line.setCell(0, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
line.setCell(1, CellData.fromCharData([2, 'b', 0, 'b'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([3, 'c', 0, 'c'.charCodeAt(0)]));
line.setCell(3, CellData.fromCharData([4, 'd', 0, 'd'.charCodeAt(0)]));
line.setCell(4, CellData.fromCharData([5, 'e', 0, 'e'.charCodeAt(0)]));
line.fill(CellData.fromCharData([123, 'z', 0, 'z'.charCodeAt(0)]));
chai.expect(line.toArray()).eql([
[123, 'z', 0, 'z'.charCodeAt(0)],
[123, 'z', 0, 'z'.charCodeAt(0)],
[123, 'z', 0, 'z'.charCodeAt(0)],
[123, 'z', 0, 'z'.charCodeAt(0)],
[123, 'z', 0, 'z'.charCodeAt(0)]
]);
});
it('clone', function(): void {
const line = new TestBufferLine(5, null, true);
line.setCell(0, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
line.setCell(1, CellData.fromCharData([2, 'b', 0, 'b'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([3, 'c', 0, 'c'.charCodeAt(0)]));
line.setCell(3, CellData.fromCharData([4, 'd', 0, 'd'.charCodeAt(0)]));
line.setCell(4, CellData.fromCharData([5, 'e', 0, 'e'.charCodeAt(0)]));
const line2 = line.clone();
chai.expect(TestBufferLine.prototype.toArray.apply(line2)).eql(line.toArray());
chai.expect(line2.length).equals(line.length);
chai.expect(line2.isWrapped).equals(line.isWrapped);
});
it('copyFrom', function(): void {
const line = new TestBufferLine(5);
line.setCell(0, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
line.setCell(1, CellData.fromCharData([2, 'b', 0, 'b'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([3, 'c', 0, 'c'.charCodeAt(0)]));
line.setCell(3, CellData.fromCharData([4, 'd', 0, 'd'.charCodeAt(0)]));
line.setCell(4, CellData.fromCharData([5, 'e', 0, 'e'.charCodeAt(0)]));
const line2 = new TestBufferLine(5, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]), true);
line2.copyFrom(line);
chai.expect(line2.toArray()).eql(line.toArray());
chai.expect(line2.length).equals(line.length);
chai.expect(line2.isWrapped).equals(line.isWrapped);
});
it('should support combining chars', function(): void {
// CHAR_DATA_CODE_INDEX resembles current behavior in InputHandler.print
// --> set code to the last charCodeAt value of the string
// Note: needs to be fixed once the string pointer is in place
const line = new TestBufferLine(2, CellData.fromCharData([1, 'e\u0301', 0, '\u0301'.charCodeAt(0)]));
chai.expect(line.toArray()).eql([[1, 'e\u0301', 0, '\u0301'.charCodeAt(0)], [1, 'e\u0301', 0, '\u0301'.charCodeAt(0)]]);
const line2 = new TestBufferLine(5, CellData.fromCharData([1, 'a', 0, '\u0301'.charCodeAt(0)]), true);
line2.copyFrom(line);
chai.expect(line2.toArray()).eql(line.toArray());
const line3 = line.clone();
chai.expect(TestBufferLine.prototype.toArray.apply(line3)).eql(line.toArray());
});
describe('resize', function(): void {
it('enlarge(false)', function(): void {
const line = new TestBufferLine(5, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]), false);
line.resize(10, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
chai.expect(line.toArray()).eql(Array(10).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
it('enlarge(true)', function(): void {
const line = new TestBufferLine(5, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]), false);
line.resize(10, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
chai.expect(line.toArray()).eql(Array(10).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
it('shrink(true) - should apply new size', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]), false);
line.resize(5, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
chai.expect(line.toArray()).eql(Array(5).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
it('shrink to 0 length', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]), false);
line.resize(0, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
chai.expect(line.toArray()).eql(Array(0).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
it('should remove combining data on replaced cells after shrinking then enlarging', () => {
const line = new TestBufferLine(10, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]), false);
line.set(2, [ null, '😁', 1, '😁'.charCodeAt(0) ]);
line.set(9, [ null, '😁', 1, '😁'.charCodeAt(0) ]);
chai.expect(line.translateToString()).eql('aa😁aaaaaa😁');
chai.expect(Object.keys(line.combined).length).eql(2);
line.resize(5, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
chai.expect(line.translateToString()).eql('aa😁aa');
line.resize(10, CellData.fromCharData([1, 'a', 0, 'a'.charCodeAt(0)]));
chai.expect(line.translateToString()).eql('aa😁aaaaaaa');
chai.expect(Object.keys(line.combined).length).eql(1);
});
});
describe('getTrimLength', function(): void {
it('empty line', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
chai.expect(line.getTrimmedLength()).equal(0);
});
it('ASCII', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
chai.expect(line.getTrimmedLength()).equal(3);
});
it('surrogate', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([1, '𝄞', 1, '𝄞'.charCodeAt(0)]));
chai.expect(line.getTrimmedLength()).equal(3);
});
it('combining', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([1, 'e\u0301', 1, '\u0301'.charCodeAt(0)]));
chai.expect(line.getTrimmedLength()).equal(3);
});
it('fullwidth', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([1, '１', 2, '１'.charCodeAt(0)]));
line.setCell(3, CellData.fromCharData([0, '', 0, undefined]));
chai.expect(line.getTrimmedLength()).equal(4); // also counts null cell after fullwidth
});
});
describe('translateToString with and w\'o trimming', function(): void {
it('empty line', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
chai.expect(line.translateToString(false)).equal(' ');
chai.expect(line.translateToString(true)).equal('');
});
it('ASCII', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(4, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(5, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
chai.expect(line.translateToString(false)).equal('a a aa ');
chai.expect(line.translateToString(true)).equal('a a aa');
chai.expect(line.translateToString(false, 0, 5)).equal('a a a');
chai.expect(line.translateToString(false, 0, 4)).equal('a a ');
chai.expect(line.translateToString(false, 0, 3)).equal('a a');
chai.expect(line.translateToString(true, 0, 5)).equal('a a a');
chai.expect(line.translateToString(true, 0, 4)).equal('a a ');
chai.expect(line.translateToString(true, 0, 3)).equal('a a');
});
it('surrogate', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([1, '𝄞', 1, '𝄞'.charCodeAt(0)]));
line.setCell(4, CellData.fromCharData([1, '𝄞', 1, '𝄞'.charCodeAt(0)]));
line.setCell(5, CellData.fromCharData([1, '𝄞', 1, '𝄞'.charCodeAt(0)]));
chai.expect(line.translateToString(false)).equal('a 𝄞 𝄞𝄞 ');
chai.expect(line.translateToString(true)).equal('a 𝄞 𝄞𝄞');
chai.expect(line.translateToString(false, 0, 5)).equal('a 𝄞 𝄞');
chai.expect(line.translateToString(false, 0, 4)).equal('a 𝄞 ');
chai.expect(line.translateToString(false, 0, 3)).equal('a 𝄞');
chai.expect(line.translateToString(true, 0, 5)).equal('a 𝄞 𝄞');
chai.expect(line.translateToString(true, 0, 4)).equal('a 𝄞 ');
chai.expect(line.translateToString(true, 0, 3)).equal('a 𝄞');
});
it('combining', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([1, 'e\u0301', 1, '\u0301'.charCodeAt(0)]));
line.setCell(4, CellData.fromCharData([1, 'e\u0301', 1, '\u0301'.charCodeAt(0)]));
line.setCell(5, CellData.fromCharData([1, 'e\u0301', 1, '\u0301'.charCodeAt(0)]));
chai.expect(line.translateToString(false)).equal('a e\u0301 e\u0301e\u0301 ');
chai.expect(line.translateToString(true)).equal('a e\u0301 e\u0301e\u0301');
chai.expect(line.translateToString(false, 0, 5)).equal('a e\u0301 e\u0301');
chai.expect(line.translateToString(false, 0, 4)).equal('a e\u0301 ');
chai.expect(line.translateToString(false, 0, 3)).equal('a e\u0301');
chai.expect(line.translateToString(true, 0, 5)).equal('a e\u0301 e\u0301');
chai.expect(line.translateToString(true, 0, 4)).equal('a e\u0301 ');
chai.expect(line.translateToString(true, 0, 3)).equal('a e\u0301');
});
it('fullwidth', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([1, '１', 2, '１'.charCodeAt(0)]));
line.setCell(3, CellData.fromCharData([0, '', 0, undefined]));
line.setCell(5, CellData.fromCharData([1, '１', 2, '１'.charCodeAt(0)]));
line.setCell(6, CellData.fromCharData([0, '', 0, undefined]));
line.setCell(7, CellData.fromCharData([1, '１', 2, '１'.charCodeAt(0)]));
line.setCell(8, CellData.fromCharData([0, '', 0, undefined]));
chai.expect(line.translateToString(false)).equal('a １ １１ ');
chai.expect(line.translateToString(true)).equal('a １ １１');
chai.expect(line.translateToString(false, 0, 7)).equal('a １ １');
chai.expect(line.translateToString(false, 0, 6)).equal('a １ １');
chai.expect(line.translateToString(false, 0, 5)).equal('a １ ');
chai.expect(line.translateToString(false, 0, 4)).equal('a １');
chai.expect(line.translateToString(false, 0, 3)).equal('a １');
chai.expect(line.translateToString(false, 0, 2)).equal('a ');
chai.expect(line.translateToString(true, 0, 7)).equal('a １ １');
chai.expect(line.translateToString(true, 0, 6)).equal('a １ １');
chai.expect(line.translateToString(true, 0, 5)).equal('a １ ');
chai.expect(line.translateToString(true, 0, 4)).equal('a １');
chai.expect(line.translateToString(true, 0, 3)).equal('a １');
chai.expect(line.translateToString(true, 0, 2)).equal('a ');
});
it('space at end', function(): void {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(2, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(4, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(5, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
line.setCell(6, CellData.fromCharData([1, ' ', 1, ' '.charCodeAt(0)]));
chai.expect(line.translateToString(false)).equal('a a aa ');
chai.expect(line.translateToString(true)).equal('a a aa ');
});
it('should always return some sane value', function(): void {
// sanity check - broken line with invalid out of bound null width cells
// this can atm happen with deleting/inserting chars in inputhandler by "breaking"
// fullwidth pairs --> needs to be fixed after settling BufferLine impl
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, 0, NULL_CELL_CODE]), false);
chai.expect(line.translateToString(false)).equal(' ');
chai.expect(line.translateToString(true)).equal('');
});
it('should work with endCol=0', () => {
const line = new TestBufferLine(10, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, 0, NULL_CELL_CODE]), false);
line.setCell(0, CellData.fromCharData([1, 'a', 1, 'a'.charCodeAt(0)]));
chai.expect(line.translateToString(true, 0, 0)).equal('');
});
});
describe('addCharToCell', () => {
it('should set width to 1 for empty cell', () => {
const line = new TestBufferLine(3, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
line.addCodepointToCell(0, '\u0301'.charCodeAt(0));
const cell = line.loadCell(0, new CellData());
// chars contains single combining char
// width is set to 1
chai.assert.deepEqual(cell.getAsCharData(), [DEFAULT_ATTR, '\u0301', 1, 0x0301]);
// do not account a single combining char as combined
chai.assert.equal(cell.isCombined(), 0);
});
it('should add char to combining string in cell', () => {
const line = new TestBufferLine(3, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
const cell = line .loadCell(0, new CellData());
cell.setFromCharData([123, 'e\u0301', 1, 'e\u0301'.charCodeAt(1)]);
line.setCell(0, cell);
line.addCodepointToCell(0, '\u0301'.charCodeAt(0));
line.loadCell(0, cell);
// chars contains 3 chars
// width is set to 1
chai.assert.deepEqual(cell.getAsCharData(), [123, 'e\u0301\u0301', 1, 0x0301]);
// do not account a single combining char as combined
chai.assert.equal(cell.isCombined(), ContentMasks.IS_COMBINED);
});
it('should create combining string on taken cell', () => {
const line = new TestBufferLine(3, CellData.fromCharData([DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]), false);
const cell = line .loadCell(0, new CellData());
cell.setFromCharData([123, 'e', 1, 'e'.charCodeAt(1)]);
line.setCell(0, cell);
line.addCodepointToCell(0, '\u0301'.charCodeAt(0));
line.loadCell(0, cell);
// chars contains 2 chars
// width is set to 1
chai.assert.deepEqual(cell.getAsCharData(), [123, 'e\u0301', 1, 0x0301]);
// do not account a single combining char as combined
chai.assert.equal(cell.isCombined(), ContentMasks.IS_COMBINED);
});
});
});
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