From https://en.wikipedia.org/wiki/NaN#Display, it says
that apart from nan and -nan, we can also get NAN and even
nan(char-sequence) from libc.
In #11482, our conclusion was that we wanna normalize it in
Redis to a single nan type, like we already normalized inf.
For this, we also reverted the assert_match part of the test
added in #11506, using assert_equal to validate the changes.
The test introduced in #11482 fail on ARM (extra CI):
```
*** [err]: RESP2: RM_ReplyWithDouble: NaN in tests/unit/moduleapi/reply.tcl
Expected '-nan' to be equal to 'nan' (context: type eval line 3 cmd
{assert_equal "-nan" [r rw.double 0 0]} proc ::test)
*** [err]: RESP3: RM_ReplyWithDouble: NaN in tests/unit/moduleapi/reply.tcl
Expected ',-nan' to be equal to ',nan' (context: type eval line 8 cmd
{assert_equal ",-nan" [r rw.double 0 0]} proc ::test)
```
It looks like there is no negative nan on ARM.
The test introduced in #11482 fail on mac:
```
*** [err]: RESP3: RM_ReplyWithDouble: inf in tests/unit/moduleapi/reply.tcl
Expected 'Inf' to be equal to 'inf'
(context: type eval line 6 cmd {assert_equal Inf [r rw.double inf]} proc ::test)
```
Looks like the mac platform returns inf instead of Inf in this case, this PR
uses readraw to verify the protocol.
Adding a test to cover the already existing behavior of NAN replies,
to accompany the PR that adds them to the RESP3 spec:
https://github.com/redis/redis-specifications/pull/10
This PR also covers Inf replies that are already in the spec, as well as RESP2 coverage.
Summary of changes:
1. Rename `redisCommand->name` to `redisCommand->declared_name`, it is a
const char * for native commands and SDS for module commands.
2. Store the [sub]command fullname in `redisCommand->fullname` (sds).
3. List subcommands in `ACL CAT`
4. List subcommands in `COMMAND LIST`
5. `moduleUnregisterCommands` now will also free the module subcommands.
6. RM_GetCurrentCommandName returns full command name
Other changes:
1. Add `addReplyErrorArity` and `addReplyErrorExpireTime`
2. Remove `getFullCommandName` function that now is useless.
3. Some cleanups about `fullname` since now it is SDS.
4. Delete `populateSingleCommand` function from server.h that is useless.
5. Added tests to cover this change.
6. Add some module unload tests and fix the leaks
7. Make error messages uniform, make sure they always contain the full command
name and that it's quoted.
7. Fixes some typos
see the history in #9504, fixes#10124
Co-authored-by: Oran Agra <oran@redislabs.com>
Co-authored-by: guybe7 <guy.benoish@redislabs.com>
The module test in reply.tcl was introduced by #8521 but didn't run until recently (see #9639)
and then it started failing with valgrind.
This is because valgrind uses 64 bit long double (unlike most other platforms that have at least 80 bits)
But besides valgrind, the tests where also incompatible with ARM32, which also uses 64 bit long doubles.
We now use appropriate value to avoid issues with either valgrind or ARM32
In all the double tests, i use 3.141, which is safe since since addReplyDouble uses
`%.17Lg` which is able to represent this value without adding any digits due to precision loss.
In the long double, since we use `%.17Lf` in ld2string, it preserves 17 significant
digits, rather than 17 digit after the decimal point (like in `%.17Lg`).
So to make these similar, i use value lower than 1 (no digits left of
the period)
Lastly, we have the same issue with TCL (no long doubles) so we read
raw protocol in that test.
Note that the only error before this fix (in both valgrind and ARM32 is this:
```
*** [err]: RM_ReplyWithLongDouble: a float reply in tests/unit/moduleapi/reply.tcl
Expected '3.141' to be equal to '3.14100000000000001' (context: type eval line 2 cmd {assert_equal 3.141 [r rw.longdouble 3.141]} proc ::test)
```
so the changes to debug.c and scripting.tcl aren't really needed, but i consider them a cleanup
(i.e. scripting.c validated a different constant than the one that's sent to it from debug.c).
Another unrelated change is to add the RESP version to the repeated tests in reply.tcl
Let modules use additional type of RESP3 response (unused by redis so far)
Also fix tests that where introduced in #8521 but didn't actually run.
Co-authored-by: Oran Agra <oran@redislabs.com>
