native.rb in httpx-0.6.4

- old
+ new

@@ -12,10 +12,11 @@
     RECORD_TYPES = {
       "A" => Resolv::DNS::Resource::IN::A,
       "AAAA" => Resolv::DNS::Resource::IN::AAAA,
     }.freeze
 
+    # :nocov:
     DEFAULTS = if RUBY_VERSION < "2.2"
       {
         **Resolv::DNS::Config.default_config_hash,
         packet_size: 512,
         timeouts: RESOLVE_TIMEOUT,
@@ -40,10 +41,11 @@
         true
       rescue IPAddr::InvalidAddressError
         false
       end
     end if DEFAULTS[:nameserver]
+    # :nocov:
 
     DNS_PORT = 53
 
     def_delegator :@connections, :empty?
 
@@ -91,11 +93,13 @@
     rescue Errno::EHOSTUNREACH,
            NativeResolveError => e
       @ns_index += 1
       if @ns_index < @nameserver.size
         log(label: "resolver: ") do
+          # :nocov:
           "failed resolving on nameserver #{@nameserver[@ns_index - 1]} (#{e.message})"
+          # :nocov:
         end
         transition(:idle)
       else
         if e.respond_to?(:connection) &&
            e.respond_to?(:host)
@@ -130,10 +134,12 @@
         resolve
       end
     end
 
     def timeout
+      return if @connections.empty?
+
       @start_timeout = Process.clock_gettime(Process::CLOCK_MONOTONIC)
       hosts = @queries.keys
       @timeouts.values_at(*hosts).reject(&:empty?).map(&:first).min
     end
 
@@ -164,10 +170,12 @@
           @timeouts.delete(host)
           raise NativeResolveError.new(connection, host)
         else
           connections << connection
           log(label: "resolver: ") do
+            # :nocov:
             "timeout after #{prev_timeout}s, retry(#{timeouts.first}) #{host}..."
+            # :nocov:
           end
         end
       end
       @queries = queries
       connections.each { |ch| resolve(ch) }