Add additional test

Author: lumaxis

src/test/suite/lib/textHelpers.test.ts

@@ -23,6 +23,10 @@ describe('Text Helpers', () => {
 		content: 'doSomethingElse() {\n  throw new Error(\'Nope!\');\n}',
 		selection: new Selection(7, 2, 9, 3)
 	};
+	const testSelection3: TestSelection = {
+		content: '}\n\ndoSomethingElse() {',
+		selection: new Selection(5, 0, 7, 21)
+	};
 	let document: TextDocument;
 
 	before(async () => {
@@ -61,6 +65,12 @@ describe('Text Helpers', () => {
 			);
 		});
 
+		it('generates the correct text when selection contains empty line', () => {
+			assert.deepEqual(testSelection3.content,
+				generateCopyableText(document, testSelection3.selection)
+			);
+		});
+
 		context('wrapTextInMarkdownCodeBlock', () => {
 			it('returns the text wrapped in a Markdown code block', () => {
 				const codeSnippet = 'console.log("Yo");';