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 dom: jsdom.JSDOM;
  35   let window: Window;
  36   let document: Document;
  37
  38   let terminal: ITerminal;
  39   let buffer: CircularList<any>;
  40   let rowContainer: HTMLElement;
  41   let selectionManager: TestSelectionManager;
  42
  43   beforeEach(() => {
  44     dom = new jsdom.JSDOM('');
  45     window = dom.window;
  46     document = window.document;
  47     buffer = new CircularList<any>(100);
  48     terminal = <any>{ cols: 80, rows: 2 };
  49     selectionManager = new TestSelectionManager(terminal, buffer, rowContainer, null);
  50   });
  51
  52   function stringToRow(text: string): [number, string, number][] {
  53     let result: [number, string, number][] = [];
  54     for (let i = 0; i < text.length; i++) {
  55       result.push([0, text.charAt(i), 1]);
  56     }
  57     return result;
  58   }
  59
  60   describe('_selectWordAt', () => {
  61     it('should expand selection for normal width chars', () => {
  62       buffer.push(stringToRow('foo bar'));
  63       selectionManager.selectWordAt([0, 0]);
  64       assert.equal(selectionManager.selectionText, 'foo');
  65       selectionManager.selectWordAt([1, 0]);
  66       assert.equal(selectionManager.selectionText, 'foo');
  67       selectionManager.selectWordAt([2, 0]);
  68       assert.equal(selectionManager.selectionText, 'foo');
  69       selectionManager.selectWordAt([3, 0]);
  70       assert.equal(selectionManager.selectionText, ' ');
  71       selectionManager.selectWordAt([4, 0]);
  72       assert.equal(selectionManager.selectionText, 'bar');
  73       selectionManager.selectWordAt([5, 0]);
  74       assert.equal(selectionManager.selectionText, 'bar');
  75       selectionManager.selectWordAt([6, 0]);
  76       assert.equal(selectionManager.selectionText, 'bar');
  77     });
  78     it('should expand selection for whitespace', () => {
  79       buffer.push(stringToRow('a   b'));
  80       selectionManager.selectWordAt([0, 0]);
  81       assert.equal(selectionManager.selectionText, 'a');
  82       selectionManager.selectWordAt([1, 0]);
  83       assert.equal(selectionManager.selectionText, '   ');
  84       selectionManager.selectWordAt([2, 0]);
  85       assert.equal(selectionManager.selectionText, '   ');
  86       selectionManager.selectWordAt([3, 0]);
  87       assert.equal(selectionManager.selectionText, '   ');
  88       selectionManager.selectWordAt([4, 0]);
  89       assert.equal(selectionManager.selectionText, 'b');
  90     });
  91     it('should expand selection for wide characters', () => {
  92       // Wide characters use a special format
  93       buffer.push([
  94         [null, '中', 2],
  95         [null, '', 0],
  96         [null, '文', 2],
  97         [null, '', 0],
  98         [null, ' ', 1],
  99         [null, 'a', 1],
 100         [null, '中', 2],
 101         [null, '', 0],
 102         [null, '文', 2],
 103         [null, '', 0],
 104         [null, 'b', 1],
 105         [null, ' ', 1],
 106         [null, 'f', 1],
 107         [null, 'o', 1],
 108         [null, 'o', 1]
 109       ]);
 110       // Ensure wide characters take up 2 columns
 111       selectionManager.selectWordAt([0, 0]);
 112       assert.equal(selectionManager.selectionText, '中文');
 113       selectionManager.selectWordAt([1, 0]);
 114       assert.equal(selectionManager.selectionText, '中文');
 115       selectionManager.selectWordAt([2, 0]);
 116       assert.equal(selectionManager.selectionText, '中文');
 117       selectionManager.selectWordAt([3, 0]);
 118       assert.equal(selectionManager.selectionText, '中文');
 119       selectionManager.selectWordAt([4, 0]);
 120       assert.equal(selectionManager.selectionText, ' ');
 121       // Ensure wide characters work when wrapped in normal width characters
 122       selectionManager.selectWordAt([5, 0]);
 123       assert.equal(selectionManager.selectionText, 'a中文b');
 124       selectionManager.selectWordAt([6, 0]);
 125       assert.equal(selectionManager.selectionText, 'a中文b');
 126       selectionManager.selectWordAt([7, 0]);
 127       assert.equal(selectionManager.selectionText, 'a中文b');
 128       selectionManager.selectWordAt([8, 0]);
 129       assert.equal(selectionManager.selectionText, 'a中文b');
 130       selectionManager.selectWordAt([9, 0]);
 131       assert.equal(selectionManager.selectionText, 'a中文b');
 132       selectionManager.selectWordAt([10, 0]);
 133       assert.equal(selectionManager.selectionText, 'a中文b');
 134       selectionManager.selectWordAt([11, 0]);
 135       assert.equal(selectionManager.selectionText, ' ');
 136       // Ensure normal width characters work fine in a line containing wide characters
 137       selectionManager.selectWordAt([12, 0]);
 138       assert.equal(selectionManager.selectionText, 'foo');
 139       selectionManager.selectWordAt([13, 0]);
 140       assert.equal(selectionManager.selectionText, 'foo');
 141       selectionManager.selectWordAt([14, 0]);
 142       assert.equal(selectionManager.selectionText, 'foo');
 143     });
 144     it('should select up to non-path characters that are commonly adjacent to paths', () => {
 145       buffer.push(stringToRow('(cd)[ef]{gh}\'ij"'));
 146       selectionManager.selectWordAt([0, 0]);
 147       assert.equal(selectionManager.selectionText, '(cd');
 148       selectionManager.selectWordAt([1, 0]);
 149       assert.equal(selectionManager.selectionText, 'cd');
 150       selectionManager.selectWordAt([2, 0]);
 151       assert.equal(selectionManager.selectionText, 'cd');
 152       selectionManager.selectWordAt([3, 0]);
 153       assert.equal(selectionManager.selectionText, 'cd)');
 154       selectionManager.selectWordAt([4, 0]);
 155       assert.equal(selectionManager.selectionText, '[ef');
 156       selectionManager.selectWordAt([5, 0]);
 157       assert.equal(selectionManager.selectionText, 'ef');
 158       selectionManager.selectWordAt([6, 0]);
 159       assert.equal(selectionManager.selectionText, 'ef');
 160       selectionManager.selectWordAt([7, 0]);
 161       assert.equal(selectionManager.selectionText, 'ef]');
 162       selectionManager.selectWordAt([8, 0]);
 163       assert.equal(selectionManager.selectionText, '{gh');
 164       selectionManager.selectWordAt([9, 0]);
 165       assert.equal(selectionManager.selectionText, 'gh');
 166       selectionManager.selectWordAt([10, 0]);
 167       assert.equal(selectionManager.selectionText, 'gh');
 168       selectionManager.selectWordAt([11, 0]);
 169       assert.equal(selectionManager.selectionText, 'gh}');
 170       selectionManager.selectWordAt([12, 0]);
 171       assert.equal(selectionManager.selectionText, '\'ij');
 172       selectionManager.selectWordAt([13, 0]);
 173       assert.equal(selectionManager.selectionText, 'ij');
 174       selectionManager.selectWordAt([14, 0]);
 175       assert.equal(selectionManager.selectionText, 'ij');
 176       selectionManager.selectWordAt([15, 0]);
 177       assert.equal(selectionManager.selectionText, 'ij"');
 178     });
 179   });
 180
 181   describe('_selectLineAt', () => {
 182     it('should select the entire line', () => {
 183       buffer.push(stringToRow('foo bar'));
 184       selectionManager.selectLineAt(0);
 185       assert.equal(selectionManager.selectionText, 'foo bar', 'The selected text is correct');
 186       assert.deepEqual(selectionManager.model.finalSelectionStart, [0, 0]);
 187       assert.deepEqual(selectionManager.model.finalSelectionEnd, [terminal.cols, 0], 'The actual selection spans the entire column');
 188     });
 189   });
 190
 191   describe('selectAll', () => {
 192     it('should select the entire buffer, beyond the viewport', () => {
 193       buffer.push(stringToRow('1'));
 194       buffer.push(stringToRow('2'));
 195       buffer.push(stringToRow('3'));
 196       buffer.push(stringToRow('4'));
 197       buffer.push(stringToRow('5'));
 198       selectionManager.selectAll();
 199       terminal.ybase = buffer.length - terminal.rows;
 200       assert.equal(selectionManager.selectionText, '1\n2\n3\n4\n5');
 201     });
 202   });
 203
 204   describe('hasSelection', () => {
 205     it('should return whether there is a selection', () => {
 206       selectionManager.model.selectionStart = [0, 0];
 207       selectionManager.model.selectionStartLength = 0;
 208       assert.equal(selectionManager.hasSelection, false);
 209       selectionManager.model.selectionEnd = [0, 0];
 210       assert.equal(selectionManager.hasSelection, false);
 211       selectionManager.model.selectionEnd = [1, 0];
 212       assert.equal(selectionManager.hasSelection, true);
 213       selectionManager.model.selectionEnd = [0, 1];
 214       assert.equal(selectionManager.hasSelection, true);
 215       selectionManager.model.selectionEnd = [1, 1];
 216       assert.equal(selectionManager.hasSelection, true);
 217     });
 218   });
 219 });