Desktop: Fixed pasting HTML in Rich Text editor, and improved pasting plain text

packages/lib/htmlUtils.test.ts

@@ -0,0 +1,28 @@
+import { plainTextToHtml } from './htmlUtils';
+
+describe('htmlUtils', () => {
+
+	test('should convert a plain text string to its HTML equivalent', () => {
+		const testCases = [
+			[
+				'',
+				'',
+			],
+			[
+				'line 1\nline 2',
+				'<p>line 1</p><p>line 2</p>',
+			],
+			[
+				'<img onerror="http://downloadmalware.com"/>',
+				'&lt;img onerror=&quot;http://downloadmalware.com&quot;/&gt;',
+			],
+		];
+
+		for (const t of testCases) {
+			const [input, expected] = t;
+			const actual = plainTextToHtml(input);
+			expect(actual).toBe(expected);
+		}
+	});
+
+});