this.consecutiveFailures = consecutiveFailures;
            this.successRate = successRate;
        }

        @Override
        public String toString() {
            return String.format("CircuitBreaker[%s] State=%s, Calls=%d, Success=%.2f%%, Rejected=%d", name, state, totalCalls,
                    successRate * 100, rejectedCalls);
        }
    }

    /**

            assertTrue(metrics.totalFailures() > 0, "Should have some failures");
            assertTrue(metrics.totalSuccesses() > 0, "Should have some successes");
            assertTrue(metrics.successRate() >= 0 && metrics.successRate() <= 100, "Success rate should be valid percentage");

        } finally {
            cbWithWindow.close();
        }
    }

    @Test

            long timeSinceLastStateChangeMillis, double successRate, double availability) {

        @Override
        public String toString() {
            return String.format(
                    "CircuitBreakerMetrics[name=%s, state=%s, requests=%d, successes=%d, "
                            + "failures=%d, rejections=%d, successRate=%.2f%%, availability=%.2f%%]",

        assertEquals(1, stats.totalCalls);
        assertEquals(1, stats.totalSuccesses);
        assertEquals(0, stats.totalFailures);
        assertEquals(1.0, stats.successRate);
    }

    @Test
    @DisplayName("Test circuit opens after failure threshold")
    void testCircuitOpensAfterThreshold() {
        // Fail 3 times to open the circuit
        for (int i = 0; i < 3; i++) {

                            + "healthChecks=%d, failed=%d, removed=%d, endpoints=%d, "
                            + "healthCheckEnabled=%s, proactiveEnabled=%s, utilization=%.2f%%, successRate=%.2f%%]",
                    activeConnections, nonPooledConnections, trackedConnections, maxPoolSize, totalHealthChecks, failedHealthChecks,

	}
	objectSize := int64(10)

	for _, successCase := range successCases {
		rs, err := parseCopyPartRangeSpec(successCase.rangeString)
		if err != nil {
			t.Fatalf("expected: <nil>, got: %s", err)
		}

		start, length, err1 := rs.GetOffsetLength(objectSize)
		if err1 != nil {
			t.Fatalf("expected: <nil>, got: %s", err1)
		}

		if start != successCase.offsetBegin {