### Question:
UserMessage { public String getMessage() { return message; } private  UserMessage(Builder builder); int getBackgroundColor(); void setBackgroundColor(int backgroundColor); int getTextColor(); void setTextColor(int textColor); String getMessage(); void setMessage(String message); long getDuration(); void setDuration(long duration); Interpolator getShowInterpolator(); void setShowInterpolator(Interpolator showInterpolator); Interpolator getDismissInterpolator(); void setDismissInterpolator(Interpolator dismissInterpolator);  }### Answer:
@Test public void message_IsNotNull() { UserMessage userMessage = new UserMessage.Builder().with(mContext).build(); assertNotNull(userMessage.getMessage()); }