Untitled

public class TestExampleRequestHandler_Mockito
{
  private static final String STORE_BODY = "stored body";
  private static final String CASE_HEADER = "case";
  private static final String UPPERCASE = "uppercase";
  private static final String REQUEST_PATH = "path";

  private ExampleRequestHandler requestHandler;
  private HttpRequest request;
  private Context context;
  private Monitoring monitoring;
  private Store store;
  private Map<String, String> headers;

  @Before
  public void setup()
  {
    requestHandler = new ExampleRequestHandler();
    request = mock(HttpRequest.class);
    context = mock(Context.class);
    monitoring = mock(Monitoring.class);
    store = mock(Store.class);
    headers = mock(Map.class);

    when(context.getMonitoring()).thenReturn(monitoring);
    when(context.getStore()).thenReturn(store);
    when(store.get(REQUEST_PATH)).thenReturn(STORE_BODY);
    when(request.getPath()).thenReturn(REQUEST_PATH);
    when(request.getHeaders()).thenReturn(headers);
  }

  @Test
  public void shouldReturnTheStoredBody()
  {
    HttpResponse response = requestHandler.handle(request, context);
    assertEquals(STORE_BODY, response.getBody());
  }

  @Test
  public void responseCodeShouldBe200()
  {
    HttpResponse response = requestHandler.handle(request, context);
    assertEquals(200, response.getCode());
  }

  @Test
  public void shouldIncrementRequestCounter()
  {
    requestHandler.handle(request, context);
    verify(monitoring).incrementRequestCounter();
  }

  @Test
  public void shouldConvertToUpperCaseIfHeaderValuePresent()
  {
    when(headers.get(CASE_HEADER)).thenReturn(UPPERCASE);

    HttpResponse response = requestHandler.handle(request, context);
    assertEquals(STORE_BODY.toUpperCase(), response.getBody());
  }
}