Files
xterm.js/src/common/buffer/BufferSet.test.ts
T

85 lines
2.4 KiB
TypeScript

/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { assert } from 'chai';
import { BufferSet } from 'common/buffer/BufferSet';
import { Buffer } from 'common/buffer/Buffer';
import { MockOptionsService, MockBufferService } from 'common/TestUtils.test';
describe('BufferSet', () => {
let bufferSet: BufferSet;
beforeEach(() => {
bufferSet = new BufferSet(
new MockOptionsService({ scrollback: 1000 }),
new MockBufferService(80, 24)
);
});
describe('constructor', () => {
it('should create two different buffers: alt and normal', () => {
assert.instanceOf(bufferSet.normal, Buffer);
assert.instanceOf(bufferSet.alt, Buffer);
assert.notEqual(bufferSet.normal, bufferSet.alt);
});
});
describe('activateNormalBuffer', () => {
beforeEach(() => {
bufferSet.activateNormalBuffer();
});
it('should set the normal buffer as the currently active buffer', () => {
assert.equal(bufferSet.active, bufferSet.normal);
});
});
describe('activateAltBuffer', () => {
beforeEach(() => {
bufferSet.activateAltBuffer();
});
it('should set the alt buffer as the currently active buffer', () => {
assert.equal(bufferSet.active, bufferSet.alt);
});
});
describe('cursor handling when swapping buffers', () => {
beforeEach(() => {
bufferSet.normal.x = 0;
bufferSet.normal.y = 0;
bufferSet.alt.x = 0;
bufferSet.alt.y = 0;
});
it('should keep the cursor stationary when activating alt buffer', () => {
bufferSet.activateNormalBuffer();
bufferSet.active.x = 30;
bufferSet.active.y = 10;
bufferSet.activateAltBuffer();
assert.equal(bufferSet.active.x, 30);
assert.equal(bufferSet.active.y, 10);
});
it('should keep the cursor stationary when activating normal buffer', () => {
bufferSet.activateAltBuffer();
bufferSet.active.x = 30;
bufferSet.active.y = 10;
bufferSet.activateNormalBuffer();
assert.equal(bufferSet.active.x, 30);
assert.equal(bufferSet.active.y, 10);
});
});
describe('markers', () => {
it('should clear the markers when the buffer is switched', () => {
bufferSet.activateAltBuffer();
bufferSet.alt.addMarker(1);
assert.equal(bufferSet.alt.markers.length, 1);
bufferSet.activateNormalBuffer();
assert.equal(bufferSet.alt.markers.length, 0);
});
});
});