util.jid: Add test for invalid domain but valid UTF-8 (thanks jonas)

util.jid: Simplify boolean logic in conditionals

util.jid: Remove redundant check from split() (micro-optimization?)

util.jid: Add missing test cases (98% mutant score, single remaining mutant is a string.sub equivalent)

.luacheckrc: Add test_mutants.sh.lua to the ignore list

tools: Add initial mutation testing script

util.dbuffer: Add a bunch of missing test cases Found via mutation testing.

util.dbuffer: Add efficient shortcuts for discard() in certain cases If the buffer is already empty, nothing to do. If we're throwing away the whole buffer, we can just empty it and avoid read_chunk() (which in turn may collapse()). These shortcuts are much more efficient.

util.dbuffer: Remove redundant code (read_chunk() cannot fail at this point)

Merge 0.12->trunk

util.jsonschema: Use same integer/float logic on Lua 5.2 and 5.3 Fixes test case type.json:0:1 covering treatment of 1.0 as an integer according to the JSON definition

util.jsonschema: Fix Lua 5.2 integer compat math.type() is unavailable before Lua 5.3 so this should use the compat function added at the top

util.jsonschema: Ignore test case for JavaScript specific detail Also touching on how arrays are indistinguishable from tables in Lua

util.jsonschema: Ignore some further test cases for URI references Full-URI references are not implemented

util.jsonschema: Sort test cases to skip Piped trough `sort -g`

util.datetime: Add some missing test cases You guessed it, mutation testing.

util.roles: Fix tests to use autogenerated role id

util.roles: Add some more missing test cases Found via mutation testing.

util.promise: Fix field name in failing test (introduced in 2639e0e1c378)

util.promise: Add some missing test cases (found through mutation testing)

util.promise: Remove line that was supposed to be removed in eb9814372c54

util.promise: Remove some redundant checks, add tests confirming redundancy This lines don't appear to do anything useful, and all tests pass when they are removed. Discovered via mutation testing. I added extra tests to exercise this code, because I wasn't certain that there were no side-effects caused by removal. Everything appears to be fine, thanks to the "pending" check at the start of promise_settle().

util.roles: Add a :policies() method to iterate through available policies We don't expose the policies directly, to force people to go through :may(). However, there are times when we really just need to know what policies a role has inside it (e.g. for reporting or debugging purposes).

util.roles: Add tests

util.roles: Return nil if the role has no explicit policy (fixes inheritance) Previously, if the first inherited role had no opinion, it returned false and prevented further consultation of other inherited roles. This bug was found thanks to the implementation of missing test cases identified through mutation testing.

mod_smacks: Change boolean attribute from '1' to 'true' for compatibility Conversations 2.10.10 and earlier expect this to be literally 'true' and don't recognise '1'. This leads to it not attempting resumption with Prosody at all since this change was introduced in 36ba170c4fd0. Thanks to Zash for noticing, debugging and diagnosing this issue. This issue is fixed in Conversations commit 052c58f3 (unreleased at the time of writing).

util.iterators: join: Work even with only a single iterator in the chain

mod_tokenauth: Remove expired tokens from storage

mod_tokenauth: Invalidate tokens issued before most recent password change This is a security improvement, to ensure that sessions authenticated using a token (note: not currently possible in stock Prosody) are invalidated just like password-authenticated sessions are.

prosodyctl: check turn: More clearly indicate the error is from TURN server