src/SelectionManager.test.ts

   1 /**
   2  * @license MIT
   3  */
   4 import jsdom = require('jsdom');
   5 import { assert } from 'chai';
   6 import { ITerminal } from './Interfaces';
   7 import { CharMeasure } from './utils/CharMeasure';
   8 import { CircularList } from './utils/CircularList';
   9 import { SelectionManager } from './SelectionManager';
  10 import { SelectionModel } from './SelectionModel';
  11
  12 class TestSelectionManager extends SelectionManager {
  13   constructor(
  14     terminal: ITerminal,
  15     buffer: CircularList<any>,
  16     rowContainer: HTMLElement,
  17     charMeasure: CharMeasure
  18   ) {
  19     super(terminal, buffer, rowContainer, charMeasure);
  20   }
  21
  22   public get model(): SelectionModel { return this._model; }
  23
  24   public selectLineAt(line: number): void { this._selectLineAt(line); }
  25   public selectWordAt(coords: [number, number]): void { this._selectWordAt(coords); }
  26
  27   // Disable DOM interaction
  28   public enable(): void {}
  29   public disable(): void {}
  30   public refresh(): void {}
  31 }
  32
  33 describe('SelectionManager', () => {
  34   let window: Window;
  35   let document: Document;
  36
  37   let terminal: ITerminal;
  38   let buffer: CircularList<any>;
  39   let rowContainer: HTMLElement;
  40   let selectionManager: TestSelectionManager;
  41
  42   beforeEach(done => {
  43     jsdom.env('', (err, w) => {
  44       window = w;
  45       document = window.document;
  46       buffer = new CircularList<any>(100);
  47       terminal = <any>{ cols: 80, rows: 2 };
  48       selectionManager = new TestSelectionManager(terminal, buffer, rowContainer, null);
  49       done();
  50     });
  51   });
  52
  53   function stringToRow(text: string): [number, string, number][] {
  54     let result: [number, string, number][] = [];
  55     for (let i = 0; i < text.length; i++) {
  56       result.push([0, text.charAt(i), 1]);
  57     }
  58     return result;
  59   }
  60
  61   describe('_selectWordAt', () => {
  62     it('should expand selection for normal width chars', () => {
  63       buffer.push(stringToRow('foo bar'));
  64       selectionManager.selectWordAt([0, 0]);
  65       assert.equal(selectionManager.selectionText, 'foo');
  66       selectionManager.selectWordAt([1, 0]);
  67       assert.equal(selectionManager.selectionText, 'foo');
  68       selectionManager.selectWordAt([2, 0]);
  69       assert.equal(selectionManager.selectionText, 'foo');
  70       selectionManager.selectWordAt([3, 0]);
  71       assert.equal(selectionManager.selectionText, ' ');
  72       selectionManager.selectWordAt([4, 0]);
  73       assert.equal(selectionManager.selectionText, 'bar');
  74       selectionManager.selectWordAt([5, 0]);
  75       assert.equal(selectionManager.selectionText, 'bar');
  76       selectionManager.selectWordAt([6, 0]);
  77       assert.equal(selectionManager.selectionText, 'bar');
  78     });
  79     it('should expand selection for whitespace', () => {
  80       buffer.push(stringToRow('a   b'));
  81       selectionManager.selectWordAt([0, 0]);
  82       assert.equal(selectionManager.selectionText, 'a');
  83       selectionManager.selectWordAt([1, 0]);
  84       assert.equal(selectionManager.selectionText, '   ');
  85       selectionManager.selectWordAt([2, 0]);
  86       assert.equal(selectionManager.selectionText, '   ');
  87       selectionManager.selectWordAt([3, 0]);
  88       assert.equal(selectionManager.selectionText, '   ');
  89       selectionManager.selectWordAt([4, 0]);
  90       assert.equal(selectionManager.selectionText, 'b');
  91     });
  92     it('should expand selection for wide characters', () => {
  93       // Wide characters use a special format
  94       buffer.push([
  95         [null, '中', 2],
  96         [null, '', 0],
  97         [null, '文', 2],
  98         [null, '', 0],
  99         [null, ' ', 1],
 100         [null, 'a', 1],
 101         [null, '中', 2],
 102         [null, '', 0],
 103         [null, '文', 2],
 104         [null, '', 0],
 105         [null, 'b', 1],
 106         [null, ' ', 1],
 107         [null, 'f', 1],
 108         [null, 'o', 1],
 109         [null, 'o', 1]
 110       ]);
 111       // Ensure wide characters take up 2 columns
 112       selectionManager.selectWordAt([0, 0]);
 113       assert.equal(selectionManager.selectionText, '中文');
 114       selectionManager.selectWordAt([1, 0]);
 115       assert.equal(selectionManager.selectionText, '中文');
 116       selectionManager.selectWordAt([2, 0]);
 117       assert.equal(selectionManager.selectionText, '中文');
 118       selectionManager.selectWordAt([3, 0]);
 119       assert.equal(selectionManager.selectionText, '中文');
 120       selectionManager.selectWordAt([4, 0]);
 121       assert.equal(selectionManager.selectionText, ' ');
 122       // Ensure wide characters work when wrapped in normal width characters
 123       selectionManager.selectWordAt([5, 0]);
 124       assert.equal(selectionManager.selectionText, 'a中文b');
 125       selectionManager.selectWordAt([6, 0]);
 126       assert.equal(selectionManager.selectionText, 'a中文b');
 127       selectionManager.selectWordAt([7, 0]);
 128       assert.equal(selectionManager.selectionText, 'a中文b');
 129       selectionManager.selectWordAt([8, 0]);
 130       assert.equal(selectionManager.selectionText, 'a中文b');
 131       selectionManager.selectWordAt([9, 0]);
 132       assert.equal(selectionManager.selectionText, 'a中文b');
 133       selectionManager.selectWordAt([10, 0]);
 134       assert.equal(selectionManager.selectionText, 'a中文b');
 135       selectionManager.selectWordAt([11, 0]);
 136       assert.equal(selectionManager.selectionText, ' ');
 137       // Ensure normal width characters work fine in a line containing wide characters
 138       selectionManager.selectWordAt([12, 0]);
 139       assert.equal(selectionManager.selectionText, 'foo');
 140       selectionManager.selectWordAt([13, 0]);
 141       assert.equal(selectionManager.selectionText, 'foo');
 142       selectionManager.selectWordAt([14, 0]);
 143       assert.equal(selectionManager.selectionText, 'foo');
 144     });
 145   });
 146
 147   describe('_selectLineAt', () => {
 148     it('should select the entire line', () => {
 149       buffer.push(stringToRow('foo bar'));
 150       selectionManager.selectLineAt(0);
 151       assert.equal(selectionManager.selectionText, 'foo bar', 'The selected text is correct');
 152       assert.deepEqual(selectionManager.model.finalSelectionStart, [0, 0]);
 153       assert.deepEqual(selectionManager.model.finalSelectionEnd, [terminal.cols, 0], 'The actual selection spans the entire column');
 154     });
 155   });
 156
 157   describe('selectAll', () => {
 158     it('should select the entire buffer, beyond the viewport', () => {
 159       buffer.push(stringToRow('1'));
 160       buffer.push(stringToRow('2'));
 161       buffer.push(stringToRow('3'));
 162       buffer.push(stringToRow('4'));
 163       buffer.push(stringToRow('5'));
 164       selectionManager.selectAll();
 165       terminal.ybase = buffer.length - terminal.rows;
 166       assert.equal(selectionManager.selectionText, '1\n2\n3\n4\n5');
 167     });
 168   });
 169 });