@IsTest
public with sharing class BoxAuthTest {

    // Mock for HTTP callouts
     
     private class BoxTokenMock implements HttpCalloutMock {

        public HTTPResponse respond(HTTPRequest req) {

            HttpResponse res = new HttpResponse();
            res.setStatusCode(200);

            // First call: token endpoint
            if (req.getMethod() == 'POST') {
                res.setBody('{"access_token":"testAccessToken","refresh_token":"testRefreshToken"}');
            }
            // Second call: fetch user info
            else if (req.getMethod() == 'GET') {
                res.setBody('{"login":"testuser@box.com"}');
            }

              return res;
        }
    }


     @IsTest
    static void testGetAccessToken() {

        // Set mock
        Test.setMock(HttpCalloutMock.class, new BoxTokenMock());

        // Create instance of your auth class
        // Replace BoxAuth with your actual class name
        BoxAuth auth = new BoxAuth();

        Test.startTest();
        auth.getAccessToken(
            'dummyCode',
            'box',
            true,
                       UserInfo.getUserId()
        );
        Test.stopTest();

        // Optional: Query token object if storeToken inserts record
        // Add assertion if needed

        System.assert(true); // Method executed successfully
    }

    private class RefreshTokenMock implements HttpCalloutMock {

        public HTTPResponse respond(HTTPRequest req) {

            HttpResponse res = new HttpResponse();
            res.setStatusCode(200);
            res.setBody('{"access_token":"newAccessToken123"}');

            return res;
        }
    }


    @IsTest
    static void testRefreshAccessToken() {

    
        Test.setMock(HttpCalloutMock.class, new RefreshTokenMock());
        BoxAuth auth = new BoxAuth(); 
        Test.startTest();
        String token = auth.refreshAccessToken('oldRefreshToken');
        Test.stopTest();
        System.assertEquals('newAccessToken123', token);
    }

   
}