Question on tests "Receive handshake (2/2)"

[HongtaoYang]

When I run the test, this stage will fail about half the time at random.

After enabling debug mode, I saw this message:

[tester::#ZN8] [handshake] replica: Received bytes: "+FULLRESYNC 6zhEkGRqJSXte731000wMocCPVY-vf731wgEkaBO 0\r\n"                    │
[tester::#ZN8] [handshake] replica: Received RESP simple string: "FULLRESYNC 6zhEkGRqJSXte731000wMocCPVY-vf731wgEkaBO 0"            │
[tester::#ZN8] Expected "FULLRESYNC 6zhEkGRqJSXte731000wMocCPVY-vf731wgEkaBO 0" to match the pattern "FULLRESYNC \\w+ 0".           │
[tester::#ZN8] Test failed 

Based on this debug info, it seems that the tests failed because there is a "-" in the id. Should we allow "-" or "_" in the id? Or is the id strictly alphanumeric?

[linear]

CC-1474 Unstable tests on "Receive handshake (2/2)"