update: add balstack spec file

src/components/_global/BalStack/BalStack.spec.ts

@@ -0,0 +1,25 @@
+import { render } from '@testing-library/vue';
+import BalStack from './BalStack.vue';
+
+describe('BalStack', () => {
+  describe('When using BalStack', () => {
+    it('should render items horizontally when the horizontal prop is supplied', () => {
+      const { getByText } = render(BalStack, {
+        slots: {
+          default: '<div>First</div><div>Second</div><div>Third</div>'
+        }
+      });
+
+      // check that elements are actually rendered as children
+      expect(getByText('First')).toBeVisible();
+      expect(getByText('Second')).toBeVisible();
+      expect(getByText('Third')).toBeVisible();
+    });
+
+    // it('should render items vertically when the vertical prop is supplied', () => {});
+
+    // it('should render items with a space between them', () => {});
+
+    // it('should render items with a border between them if withBorder prop is supplied', () => {});
+  });
+});