diff --git a/frontend/src/lib/components/ProgressSidebar.test.ts b/frontend/src/lib/components/ProgressSidebar.test.ts
index 66348d0..a27b723 100644
--- a/frontend/src/lib/components/ProgressSidebar.test.ts
+++ b/frontend/src/lib/components/ProgressSidebar.test.ts
@@ -53,4 +53,11 @@ describe('ProgressSidebar', () => {
 		expect(screen.getByTestId('step-2')).not.toHaveAttribute('aria-current');
 		expect(screen.getByTestId('step-3')).not.toHaveAttribute('aria-current');
 	});
+
+	it('step 3 active: steps 1 and 2 are both completed', () => {
+		render(ProgressSidebar, { props: { currentStep: 3 } });
+		expect(screen.getByTestId('step-1')).toHaveAttribute('data-state', 'completed');
+		expect(screen.getByTestId('step-2')).toHaveAttribute('data-state', 'completed');
+		expect(screen.getByTestId('step-3')).toHaveAttribute('aria-current', 'step');
+	});
 });