HTTP GET and POST

Prerequisite

GET METHOD

This service is configured to respond to GET requests that are defined using the forGet(String url) method with the following:

Custom status code
Defined by the CUSTOM_STATUS_CODE variable.
Value: 258 in this example
Predefined String response body
Defined by the RESPONSE_BODY_GET variable

Create GET request:

  private static final String URL = "http://www.ca.com/portfolio";

  private static String RESPONSE_BODY_GET = "Response body from virtualized service.";
  private static int CUSTOM_STATUS_CODE = 258;

  @Rule
  public VirtualServerRule vs = new VirtualServerRule();

  @Test
  public void testSimpleHttpGetWithResponseCodeAndStringBody() throws IOException {
    forGet(URL).doReturn(
        aMessage(CUSTOM_STATUS_CODE)
            .withStringBody(RESPONSE_BODY_GET)
    );

    HttpGet httpGet = new HttpGet(URL);
    HttpClient httpClient = HttpClientBuilder.create().build();
    HttpResponse httpResponse = httpClient.execute(httpGet);

    assertEquals(CUSTOM_STATUS_CODE, httpResponse.getStatusLine().getStatusCode());

    BufferedReader reader = new BufferedReader(
        new InputStreamReader(httpResponse.getEntity().getContent()));
    String inputLine;
    StringBuffer response = new StringBuffer();

    while ((inputLine = reader.readLine()) != null) {
      response.append(inputLine);
    }
    reader.close();

    assertEquals(response.toString(), RESPONSE_BODY_GET);
  }

POST METHOD

This service is configured to respond to POST requests as defined using the forPost(String url) method. This message has the following arguments:

Predefined String response body
Defined by RESPONSE_BODY_POST variable.
Note: This variable includes two parameters which will be replaced by the following post request arguments in the response:
- ${argument.id}
  Value: 5
- ${argument.filter}
  Value: ALL

Create POST request:

private static final String URL = "http://www.ca.com/portfolio";
 
private static String RESPONSE_BODY_POST =
    "Response for id ${argument.id} with configured filter for ${argument.filter}.";
private static int CUSTOM_STATUS_CODE = 258;
 
@Rule
public VirtualServerRule vs = new VirtualServerRule();
 
 
@Test
  public void testSimpleHttpPost() throws IOException {
    forPost(URL).doReturn(
        okMessage()
            .withStringBody(RESPONSE_BODY_POST)
            .withContentType(HttpConstants.PLAIN_TEXT)
            .enableMagicStrings()
    );

    HttpPost httpPost = new HttpPost(URL);
    List parameters = new ArrayList(2);
    parameters.add(new BasicNameValuePair("id", "5"));
    parameters.add(new BasicNameValuePair("filter", "ALL"));
    httpPost.setEntity(new UrlEncodedFormEntity(parameters));

    HttpClient httpClient = HttpClientBuilder.create().build();
    HttpResponse httpResponse = httpClient.execute(httpPost);

    BufferedReader reader = new BufferedReader(
        new InputStreamReader(httpResponse.getEntity().getContent()));
    String inputLine;
    StringBuffer response = new StringBuffer();

    while ((inputLine = reader.readLine()) != null) {
      response.append(inputLine);
    }
    reader.close();

    assertTrue(response.toString().contains("Response for id 5"));
    assertTrue(response.toString().contains("filter for ALL."));
  }