Added test

test/createCheckbox.test.ts

@@ -0,0 +1,26 @@
+import * as assert from 'assert';
+import * as vscode from 'vscode';
+import { getEditor } from '../src/helpers';
+import { createCheckbox } from '../src/createCheckbox';
+
+suite('create checkbox', () => {
+    test('should create a new checkbox with new bullet point', async () => {
+        // create new document
+        const newDocument = await vscode.workspace.openTextDocument({
+            content: 'this is a text',
+            language: 'markdown'
+        });
+        await vscode.window.showTextDocument(newDocument);
+
+        // set the cursor to the current line
+        const editor = getEditor();
+        const position = editor.selection.active;
+        const newCursorPosition = position.with(0, 0);
+        const newSelection = new vscode.Selection(newCursorPosition, newCursorPosition);
+        editor.selection = newSelection;
+
+        const result = await createCheckbox(editor);
+
+        assert.equal(result, true);
+    });
+});