54.65.73.74.20.F0.9F.98.80
These bytes are UTF-8 for "Test 😀".
"Test 😀".
This is an example of double-encoding: the bytes that were already UTF-8 were interpreted as if they were extended Latin-1 (to be precise, as if they were Unicode code points) and encoded into UTF-8 once again. You can see that by performing an inverse transformation: 
$ echo "Test 😀" | iconv -t cp1252
Test 😀

(sorry, <code> tags eat Unicode...)

The real fix would be to check the documentation of the $conn->send_utf8() method. If if unconditionally encodes its input from Perl wide characters into UTF-8 bytes, you can decode the UTF-8 into wide characters before passing the resulting data structure to send_utf8.

In reply to Re: Encoding of emoji character by Anonymous Monk
in thread Encoding of emoji character by dcunningham

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