tests: add test cases

lib/DonorsList/AddDonorButton.test.js

@@ -1,27 +1,59 @@
 import { render, screen } from '@testing-library/react';
+import user from '@testing-library/user-event';
 
 import AddDonorButton from './AddDonorButton';
 
+const mockVendorData = { id: '1', name: 'Amazon' };
+
+jest.mock('@folio/stripes/core', () => ({
+  ...jest.requireActual('@folio/stripes/core'),
+  Pluggable: jest.fn(({ children, ...rest }) => {
+    return (
+      <div>
+        {children}
+        <button
+          type="button"
+          id={rest?.name}
+          onClick={() => rest?.selectVendor([mockVendorData])}
+        >
+          Add donor
+        </button>
+      </div>
+    );
+  }),
+}));
+
 const mockOnAddDonors = jest.fn();
 
 const defaultProps = {
   onAddDonors: mockOnAddDonors,
-  fields: {},
-  stripes: {},
+  fields: {
+    name: 'donors',
+  },
   name: 'donors',
 };
 
-const renderComponent = (props = {}) => (render(
-  <AddDonorButton
-    {...defaultProps}
-    {...props}
-  />,
+const renderComponent = (props = defaultProps) => (render(
+  <AddDonorButton {...props} />,
 ));
 
 describe('AddDonorButton', () => {
-  it('should render component', () => {
-    renderComponent();
+  it('should render component', async () => {
+    renderComponent({
+      fields: {
+        name: 'donors',
+        push: jest.fn(),
+      },
+      name: 'donors',
+      onAddDonors: mockOnAddDonors,
+    });
+
+    const addDonorsButton = screen.getByText('Add donor');
+
+    expect(addDonorsButton).toBeDefined();
+
+    await user.click(addDonorsButton);
 
-    expect(screen.getByText('stripes-acq-components.donors.noFindOrganizationPlugin')).toBeDefined();
+    expect(mockOnAddDonors).toHaveBeenCalledWith([mockVendorData.id]);
   });
 });