fix:Fixed a test for a NOAUTH error which is Arbitrary command gives an error when AUTH is required

[hqh-cell]

In

pika/src/pika_client_conn.cc

Line 285 in f8da20c

stat_ = g_pika_conf->userpass().empty() ? kLimitAuthed : kNoAuthed;

Found that when the userpass is not empty,the code will give a stat is kNoAuth.So when the auth.tcl start a server ,it should overload a userpass,not require pass.
So i add a situation that server starting with a userpass.And move the NoAuth test to it.

[cr-gpt]

In the given code patch, there is a change in the start_server procedure. It appears that the condition for checking the directive "requirepass" has been modified to also include "userpass" as a valid directive.

Here are some suggestions for improvement and potential bug risks:

1. Commenting: Adding comments to the code can help improve code readability and make it easier for other developers to understand its functionality.

2. Error Handling: Consider adding error handling for scenarios where the $config dictionary doesn't contain the specified directive. This will prevent possible errors or unexpected behavior.

3. Magic Values: Replace magic values like ":" in the code with named constants or variables to make the intention and purpose of the code clearer.

4. Testing: Ensure comprehensive tests are in place to cover different scenarios and edge cases to verify the correctness of the code changes. Test both positive and negative cases.

Without a complete understanding of the context and the rest of the codebase, it's difficult to identify all potential issues. Reviewing the surrounding code and considering how this patch fits into the larger context would be valuable for a more thorough review.

[cr-gpt]

From the code patch provided, here are some observations and suggestions:

1. It seems that a test case is missing for the scenario where the AUTH command is not required.
2. In the first test {AUTH succeeds when the right password is given}, you can remove the line set _ $err since it is not being used anywhere.
3. In the second test {AUTH fails when a wrong password is given}, you might want to specify that catching the error is expected by using catch to capture the error message instead of assigning it to _. For example:

   catch {r auth wrong!} errMsg
   set _ $errMsg
   

Overall, there don't appear to be any significant bug risks, but the review would be more thorough with the complete codebase.