}

    @Test
    void testPendingOperations() {
        assertEquals(0, channelInfo.getRequestsPending());
        assertTrue(channelInfo.getPendingOperations().isEmpty());

        channelInfo.addPendingOperation(mockOperation);
        assertEquals(1, channelInfo.getRequestsPending());
        assertFalse(channelInfo.getPendingOperations().isEmpty());

        failover.handleFailure(failedChannel, error);

        // Verify pending operations were cleared from failed channel
        assertEquals(0, failedChannel.getRequestsPending());

        // Verify alternative channel was selected and operation added
        verify(mockLoadBalancer).selectChannel(mockOperation);
        verify(alternativeChannel).addPendingOperation(mockOperation);

        ChannelInfo leastLoadedChannel = null;
        long minPending = Long.MAX_VALUE;
        for (ChannelInfo channel : channels) {
            long pending = channel.getRequestsPending();
            if (pending < minPending) {
                minPending = pending;
                leastLoadedChannel = channel;
            }
        }