### Question:
CircuitBreakerState { public CircuitState getCircuitState() { return this.currentStateTime.state(); } CircuitBreakerState(int requestVolumeThreshold); CircuitState getCircuitState(); void setCircuitState(CircuitState circuitState); void recordClosedOutcome(boolean success); boolean isClosedOutcomeSuccessOnly(); void resetResults(); void incrementHalfOpenSuccessfulResultCounter(); void resetHalfOpenSuccessfulResultCounter(); int getHalfOpenSuccessfulResultCounter(); boolean isOverFailureThreshold(int requestVolumeThreshold, double failureRatio); long updateAndGet(CircuitState circuitState); long nanosOpen(); long nanosHalfOpen(); long nanosClosed(); void close(); void open(); void halfOpen(); boolean halfOpenSuccessfulClosedCircuit(int successThreshold);  }### Answer:
@Test public void testInitialState() { CircuitBreakerState state = new CircuitBreakerState(1); assertEquals("Wrong initial state.", CircuitBreakerState.CircuitState.CLOSED, state.getCircuitState()); }