private void assertCounts(int totalConnectionsCount, int availableCount) {
    Assert.assertEquals("total connections should match", totalConnectionsCount,
        connectionTracker.getTotalConnectionsCount());
    Assert.assertEquals("available connections should match", availableCount,
        connectionTracker.getAvailableConnectionsCount());
  }
Test behavior of {@link ConnectionTracker#setMinimumActiveConnectionsPercentage} and
{@link ConnectionTracker#replenishConnections}.
@throws IOException
ambry-network/src/test/java/com/github/ambry/network/ConnectionTrackerTest.java