[Code red] handle HOSTUNREACH and EADDRNOTAVAIL syscall errors (version 3.5.0)

lib/active_utils/network_connection_retries.rb

@@ -7,7 +7,9 @@ module NetworkConnectionRetries
       Timeout::Error         => "The connection to the remote server timed out",
       Errno::ETIMEDOUT       => "The connection to the remote server timed out",
       SocketError            => "The connection to the remote server could not be established",
-      OpenSSL::SSL::SSLError => "The SSL connection to the remote server could not be established"
+      OpenSSL::SSL::SSLError => "The SSL connection to the remote server could not be established",
+      Errno::EHOSTUNREACH    => "The remote server could not be reached",
+      Errno::EADDRNOTAVAIL   => "The remote server address is not available"
     }
 
     DEFAULT_RETRY_ERRORS = {

test/unit/network_connection_retries_test.rb

@@ -32,6 +32,24 @@ def test_econnreset_raises_correctly
     assert_equal "The remote server reset the connection", raised.message
   end
 
+  def test_ehostunreach_raises_correctly
+    raised = assert_raises(ActiveUtils::ConnectionError) do
+      retry_exceptions do
+        raise Errno::EHOSTUNREACH
+      end
+    end
+    assert_equal "The remote server could not be reached", raised.message
+  end
+
+  def test_eaddrnotavail_raises_correctly
+    raised = assert_raises(ActiveUtils::ConnectionError) do
+      retry_exceptions do
+        raise Errno::EADDRNOTAVAIL
+      end
+    end
+    assert_equal "The remote server address is not available", raised.message
+  end
+
   def test_timeout_errors_raise_correctly
     exceptions = [Timeout::Error, Errno::ETIMEDOUT]
     if RUBY_VERSION >= '2.0.0'