Wrote rendering unit test for IncomeInfo component

src/components/__tests__/IncomeInfo.spec.ts

+import { mount } from '@vue/test-utils';
+import IncomeInfo from '@/components/profile/IncomeInfo.vue'
+import { describe, it, expect, beforeEach } from 'vitest'
+import { createPinia, setActivePinia } from 'pinia'
+
+describe('IncomeInfo', () => {
+
+  beforeEach(() => {
+    setActivePinia(createPinia());
+  });
+
+  it('renders correctly', async () => {
+    const wrapper = mount(IncomeInfo);
+
+    expect(wrapper.exists()).toBe(true);
+
+    expect(wrapper.findAll('.input-field')).toHaveLength(3);
+
+    expect(wrapper.find('.save-button').exists()).toBe(true);
+  });
+});