### Question:
StandardHeartbeatCall implements HeartbeatCall { public List<NameValuePair> getParameters() { return parameters; } StandardHeartbeatCall(); @Override void addParameter(String name, String value); List<NameValuePair> getParameters();  }### Answer:
@Test void getAndSet_instanceWithDefaultValues() { StandardHeartbeatCall instance = new StandardHeartbeatCall(); assertTrue(instance.getParameters().isEmpty()); }