(test) O3-2292: Add tests for encounter-observations (#772)

packages/esm-active-visits-app/src/visits-summary/visits-components/encounter-observations.test.tsx

@@ -0,0 +1,36 @@
+import React from 'react';
+import { render, screen } from '@testing-library/react';
+import EncounterObservations from './encounter-observations.component';
+
+describe('EncounterObservations', () => {
+  test('renders skeleton text while loading', () => {
+    render(<EncounterObservations observations={null} />);
+
+    expect(screen.queryByText('Temperature')).not.toBeInTheDocument();
+  });
+
+  test('renders "No observations found" message when observations list is empty', () => {
+    const emptyObservations = [];
+    render(<EncounterObservations observations={emptyObservations} />);
+
+    expect(screen.getByText('No observations found')).toBeInTheDocument();
+  });
+
+  test('renders observations list correctly', () => {
+    const observations = [
+      { display: 'Temperature: 98.6°F' },
+      { display: 'Blood Pressure: 120/80 mmHg' },
+      { display: 'Heart Rate: 72 bpm' },
+    ];
+    render(<EncounterObservations observations={observations} />);
+
+    expect(screen.getByText('Temperature:')).toBeInTheDocument();
+    expect(screen.getByText('98.6°F')).toBeInTheDocument();
+
+    expect(screen.getByText('Blood Pressure:')).toBeInTheDocument();
+    expect(screen.getByText('120/80 mmHg')).toBeInTheDocument();
+
+    expect(screen.getByText('Heart Rate:')).toBeInTheDocument();
+    expect(screen.getByText('72 bpm')).toBeInTheDocument();
+  });
+});