Remove pool empty messages for pools with a size of 0 configured

lib/vmpooler/pool_manager.rb

@@ -1270,12 +1270,14 @@ module Vmpooler
         $metrics.gauge("ready.#{pool_name}", ready)
         $metrics.gauge("running.#{pool_name}", running)
 
+        unless pool_size == 0
           if redis.get("vmpooler__empty__#{pool_name}")
             redis.del("vmpooler__empty__#{pool_name}") unless ready == 0
           elsif ready == 0
             redis.set("vmpooler__empty__#{pool_name}", 'true')
             $logger.log('s', "[!] [#{pool_name}] is empty")
           end
+        end
 
         (pool_size - total.to_i).times do
           if redis.get('vmpooler__tasks__clone').to_i < $config[:config]['task_limit'].to_i

spec/unit/pool_manager_spec.rb

@@ -4120,7 +4120,7 @@ EOT
   end
 
   describe '#repopulate_pool_vms' do
-    let(:pool_size) { 0 }
+    let(:pool_size) { 1 }
     let(:config) {
       YAML.load(<<-EOT
 ---
@@ -4139,7 +4139,7 @@ EOT
     it 'should not call clone_vm when number of VMs is equal to the pool size' do
       expect(subject).to receive(:clone_vm).exactly(0).times
 
-      subject.repopulate_pool_vms(pool, provider, pool_check_response, pool_size)
+      subject.repopulate_pool_vms(pool, provider, pool_check_response, 0)
     end
 
     it 'should not call clone_vm when number of VMs is greater than the pool size' do
@@ -4183,6 +4183,12 @@ EOT
       subject.repopulate_pool_vms(pool, provider, pool_check_response, pool_size)
     end
 
+    it 'should not log a message when the pool size is 0' do
+      expect(logger).to_not receive(:log).with('s', "[!] [#{pool}] is empty")
+
+      subject.repopulate_pool_vms(pool, provider, pool_check_response, 0)
+    end
+
     context 'when pool is marked as empty' do
 
       before(:each) do