Fail with shutdown error only if this option is enabled.

Author: merqlove

lib/do_snapshot/command.rb

@@ -55,10 +55,15 @@ def stop_droplet(droplet)
       false
     end
 
+    def fail_if_shutdown(droplet)
+      return unless shutdown
+      fail DropletPowerError.new(droplet.id), droplet.name unless api.inactive?(droplet.id)
+    end
+
     # Trying to create a snapshot.
     #
     def create_snapshot(droplet) # rubocop:disable MethodLength,Metrics/AbcSize
-      fail DropletPowerError.new(droplet.id), droplet.name unless api.inactive?(droplet.id)
+      fail_if_shutdown(droplet)
 
       logger.info "Start creating snapshot for droplet id: #{droplet.id} name: #{droplet.name}."
 

spec/do_snapshot/command_spec.rb

@@ -202,6 +202,8 @@
         load_options(shutdown: false)
         droplet = cmd.api.droplet droplet_id
         cmd.create_snapshot(droplet)
+        expect(DoSnapshot.logger.buffer)
+          .not_to include "Droplet id: #{droplet_id} must be Powered Off!"
         expect { cmd.create_snapshot(droplet) }
           .not_to raise_error
       end