Add some SelectionManager selectWorkAt tests, fix lint

2017-06-01 17:36:47 -07:00
parent 8b1067d180
commit d3865ad23f
3 changed files with 147 additions and 7 deletions
@@ -0,0 +1,140 @@
+/**
+ * @license MIT
+ */
+import jsdom = require('jsdom');
+import { assert } from 'chai';
+import { ITerminal } from './Interfaces';
+import { CharMeasure } from './utils/CharMeasure';
+import { CircularList } from './utils/CircularList';
+import { SelectionManager } from './SelectionManager';
+
+class TestSelectionManager extends SelectionManager {
+  constructor(
+    terminal: ITerminal,
+    buffer: CircularList<any>,
+    rowContainer: HTMLElement,
+    charMeasure: CharMeasure
+  ) {
+    super(terminal, buffer, rowContainer, charMeasure);
+  }
+
+  public selectWordAt(coords: [number, number]): void { this._selectWordAt(coords); }
+
+  // Disable DOM interaction
+  public enable(): void {}
+  public disable(): void {}
+  public refresh(): void {}
+}
+
+describe('SelectionManager', () => {
+  let window: Window;
+  let document: Document;
+
+  let buffer: CircularList<any>;
+  let rowContainer: HTMLElement;
+  let selectionManager: TestSelectionManager;
+
+  beforeEach(done => {
+    jsdom.env('', (err, w) => {
+      window = w;
+      document = window.document;
+      buffer = new CircularList<any>(100);
+      selectionManager = new TestSelectionManager(null, buffer, rowContainer, null);
+      done();
+    });
+  });
+
+  function stringToRow(text: string): [number, string, number][] {
+    let result: [number, string, number][] = [];
+    for (let i = 0; i < text.length; i++) {
+      result.push([0, text.charAt(i), 1]);
+    }
+    return result;
+  }
+
+  describe('_selectWordAt', () => {
+    it('should expand selection for normal width chars', () => {
+      buffer.push(stringToRow('foo bar'));
+      selectionManager.selectWordAt([0, 0]);
+      assert.equal(selectionManager.selectionText, 'foo');
+      selectionManager.selectWordAt([1, 0]);
+      assert.equal(selectionManager.selectionText, 'foo');
+      selectionManager.selectWordAt([2, 0]);
+      assert.equal(selectionManager.selectionText, 'foo');
+      selectionManager.selectWordAt([3, 0]);
+      assert.equal(selectionManager.selectionText, ' ');
+      selectionManager.selectWordAt([4, 0]);
+      assert.equal(selectionManager.selectionText, 'bar');
+      selectionManager.selectWordAt([5, 0]);
+      assert.equal(selectionManager.selectionText, 'bar');
+      selectionManager.selectWordAt([6, 0]);
+      assert.equal(selectionManager.selectionText, 'bar');
+    });
+    it('should expand selection for whitespace', () => {
+      buffer.push(stringToRow('a   b'));
+      selectionManager.selectWordAt([0, 0]);
+      assert.equal(selectionManager.selectionText, 'a');
+      selectionManager.selectWordAt([1, 0]);
+      assert.equal(selectionManager.selectionText, '   ');
+      selectionManager.selectWordAt([2, 0]);
+      assert.equal(selectionManager.selectionText, '   ');
+      selectionManager.selectWordAt([3, 0]);
+      assert.equal(selectionManager.selectionText, '   ');
+      selectionManager.selectWordAt([4, 0]);
+      assert.equal(selectionManager.selectionText, 'b');
+    });
+    it('should expand selection for wide characters', () => {
+      // Wide characters use a special format
+      buffer.push([
+        [null, '中', 2],
+        [null, '', 0],
+        [null, '文', 2],
+        [null, '', 0],
+        [null, ' ', 1],
+        [null, 'a', 1],
+        [null, '中', 2],
+        [null, '', 0],
+        [null, '文', 2],
+        [null, '', 0],
+        [null, 'b', 1],
+        [null, ' ', 1],
+        [null, 'f', 1],
+        [null, 'o', 1],
+        [null, 'o', 1]
+      ]);
+      // Ensure wide characters take up 2 columns
+      selectionManager.selectWordAt([0, 0]);
+      assert.equal(selectionManager.selectionText, '中文');
+      selectionManager.selectWordAt([1, 0]);
+      assert.equal(selectionManager.selectionText, '中文');
+      selectionManager.selectWordAt([2, 0]);
+      assert.equal(selectionManager.selectionText, '中文');
+      selectionManager.selectWordAt([3, 0]);
+      assert.equal(selectionManager.selectionText, '中文');
+      selectionManager.selectWordAt([4, 0]);
+      assert.equal(selectionManager.selectionText, ' ');
+      // Ensure wide characters work when wrapped in normal width characters
+      selectionManager.selectWordAt([5, 0]);
+      assert.equal(selectionManager.selectionText, 'a中文b');
+      selectionManager.selectWordAt([6, 0]);
+      assert.equal(selectionManager.selectionText, 'a中文b');
+      selectionManager.selectWordAt([7, 0]);
+      assert.equal(selectionManager.selectionText, 'a中文b');
+      selectionManager.selectWordAt([8, 0]);
+      assert.equal(selectionManager.selectionText, 'a中文b');
+      selectionManager.selectWordAt([9, 0]);
+      assert.equal(selectionManager.selectionText, 'a中文b');
+      selectionManager.selectWordAt([10, 0]);
+      assert.equal(selectionManager.selectionText, 'a中文b');
+      selectionManager.selectWordAt([11, 0]);
+      assert.equal(selectionManager.selectionText, ' ');
+      // Ensure normal width characters work fine in a line containing wide characters
+      selectionManager.selectWordAt([12, 0]);
+      assert.equal(selectionManager.selectionText, 'foo');
+      selectionManager.selectWordAt([13, 0]);
+      assert.equal(selectionManager.selectionText, 'foo');
+      selectionManager.selectWordAt([14, 0]);
+      assert.equal(selectionManager.selectionText, 'foo');
+    });
+  });
+});