@SuppressWarnings("unchecked")
  public void getDefaultAvatarShouldReturnDefaultAvatarInBase64String()
      throws IOException, ImageProcessException {
    String expectedJSON = "{\"team\": \"larks\"}";
    when(imageControllerUtils.getDefaultImage()).thenReturn(validAvatar);
    when(imageControllerUtils.convertImageToIcoInString64(validAvatar))
        .thenReturn(IMAGE_BYTE_ARRAY_IN_BASE_64_STRING);
    when(imageControllerUtils.getResponceJSONString(Matchers.anyMap())).thenReturn(expectedJSON);

    String actualJSON = avatarController.getDefaultAvatar();

    assertEquals(actualJSON, expectedJSON);
  }