src/test/java/com/stileeducation/markr/controller/TestResultsControllerTest.java


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package com.stileeducation.markr.controller;

import com.stileeducation.markr.converter.XmlMarkrMessageConverter;
import com.stileeducation.markr.dto.AggregatedTestResultsDTO;
import com.stileeducation.markr.dto.MCQTestResultsDTO;
import jakarta.xml.bind.JAXBContext;
import jakarta.xml.bind.JAXBException;
import jakarta.xml.bind.Marshaller;
import jakarta.xml.bind.Unmarshaller;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.core.io.ClassPathResource;
import org.springframework.http.*;

import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;

import static com.stileeducation.markr.controller.TestResultsController.IMPORT_ENDPOINT;
import static org.assertj.core.api.Assertions.assertThat;

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class TestResultsControllerTest {

  private static MCQTestResultsDTO sampleResults;

  @Autowired
  private TestRestTemplate restTemplate;

  @BeforeAll
  static void setup() throws JAXBException, IOException {
    ClassPathResource resource = new ClassPathResource("sample-results.xml");
    try (InputStream inputStream = resource.getInputStream()) {
      JAXBContext jaxbContext = JAXBContext.newInstance(MCQTestResultsDTO.class);
      Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
      sampleResults = (MCQTestResultsDTO) unmarshaller.unmarshal(inputStream);
    }
  }

  private static String toXmlString(MCQTestResultsDTO mcqTestResultsDTO) throws JAXBException {
    JAXBContext jaxbContext = JAXBContext.newInstance(MCQTestResultsDTO.class);
    Marshaller marshaller = jaxbContext.createMarshaller();
    StringWriter stringWriter = new StringWriter();
    marshaller.marshal(mcqTestResultsDTO, stringWriter);
    return stringWriter.toString();
  }

  @Test
  void testPost() throws Exception {
    // Given
    String requestXml = toXmlString(sampleResults);

    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(XmlMarkrMessageConverter.MEDIA_TYPE);

    // When
    HttpEntity<String> entity = new HttpEntity<>(requestXml, headers);
    ResponseEntity<String> response = restTemplate.postForEntity(IMPORT_ENDPOINT, entity, String.class);

    // Then
    assertThat(response.getStatusCode()).isEqualTo(HttpStatus.NO_CONTENT);
  }

  @Test
  void testUnsupportedMediaType() throws Exception {
    // Given
    MCQTestResultsDTO request = new MCQTestResultsDTO();
    String requestXml = toXmlString(request);

    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_XML);

    // When
    HttpEntity<String> entity = new HttpEntity<>(requestXml, headers);
    ResponseEntity<String> response = restTemplate.postForEntity(IMPORT_ENDPOINT, entity, String.class);

    // Then
    assertThat(response.getStatusCode()).isEqualTo(HttpStatus.UNSUPPORTED_MEDIA_TYPE);
  }

  @Test
  public void testAggregate() throws Exception {
    // Given
    String testId = "123"; // Example test ID
    String url = "/results/" + testId + "/aggregate";

    // When
    ResponseEntity<AggregatedTestResultsDTO> response =
        restTemplate
            .getForEntity(
                url,
                AggregatedTestResultsDTO.class);

    // Then
    assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);

    AggregatedTestResultsDTO results = response.getBody();
    assertThat(results).isNotNull();
    assertThat(results.getMean()).isEqualTo(65.0);
    assertThat(results.getStddev()).isEqualTo(0.0);
    assertThat(results.getMin()).isEqualTo(65.0);
    assertThat(results.getMax()).isEqualTo(65.0);
    assertThat(results.getP25()).isEqualTo(65.0);
    assertThat(results.getP50()).isEqualTo(65.0);
    assertThat(results.getP75()).isEqualTo(65.0);
    assertThat(results.getCount()).isEqualTo(1);
  }


}