n8n/packages/cli/test/unit/credentials-tester.unit.test.ts

import { CredentialsTester } from '@/services/credentials-tester.service';
import mock from 'jest-mock-extended/lib/Mock';
import type { CredentialTypes } from '@/CredentialTypes';
import type { ICredentialType, INodeType } from 'n8n-workflow';
import type { NodeTypes } from '@/NodeTypes';

describe('CredentialsTester', () => {
	const credentialTypes = mock<CredentialTypes>();
	const nodeTypes = mock<NodeTypes>();
	const credentialsTester = new CredentialsTester(mock(), credentialTypes, nodeTypes, mock());

	beforeEach(() => {
		jest.clearAllMocks();
	});

	it('should find the OAuth2 credential test for a generic OAuth2 API credential', () => {
		credentialTypes.getByName.mockReturnValue(mock<ICredentialType>({ test: undefined }));
		credentialTypes.getSupportedNodes.mockReturnValue(['oAuth2Api']);
		credentialTypes.getParentTypes.mockReturnValue([]);
		nodeTypes.getByName.mockReturnValue(
			mock<INodeType>({
				description: { credentials: [{ name: 'oAuth2Api' }] },
			}),
		);

		const testFn = credentialsTester.getCredentialTestFunction('oAuth2Api');

		if (typeof testFn !== 'function') fail();

		expect(testFn.name).toBe('oauth2CredTest');
	});
});