NO_DOC=seed corpus NO_CHANGELOG=seed corpus NO_TEST=seed corpus

NO_DOC=testing NO_CHANGELOG=testing

NO_DOC=seed corpus NO_CHANGELOG=seed corpus NO_TEST=seed corpus

Examples of IPROTO decoding issues: #3900, #1928, #6781. Patch adds a number of fuzzing tests that covers IPROTO decoding: - xrow_decode_auth - xrow_decode_begin - xrow_decode_call - xrow_decode_dml - xrow_decode_error - xrow_decode_id - xrow_decode_raft - xrow_decode_sql - xrow_decode_watch - xrow_greeting_decode - xrow_header_decode NO_DOC=testing NO_CHANGELOG=testing

It is convenient to access configuration using `config:get()` from the application script (`app.file` or `app.module`). However, before this commit, it was not possible, because the configuration was not considered as applied before the application script is loaded. Now, the script loading is moved into the post-apply phase. The resulting sequence of steps on startup/reload is the following. * collect configuration information (from all the sources) * <if the previous step is failed, set `check_errors` status and break> * apply the configuration (call all the appliers) * <if the previous step is failed, set `check_errors` status and break> * <set the new successful status: `ready` or `check_warnings`> * call post-apply hooks (including application script loading) * <if the previous step is failed, set `check_errors` status and break> * <set the new successful status: `ready` or `check_warnings`> I would like to briefly comment the changes in the tests. * `app_test.lua`: added the check for the new behavior (call config:get() from the app script) * `appliers_test.lua`: fixed the applier call (`.apply` -> `.post_apply`) * `config_test.lua`: fixed status observed in the app script (`*_in_progress` -> `ready`) Part of #8862 NO_DOC=reflected in https://github.com/tarantool/doc/issues/3544

The declarative config has the `app` section with following three parameters: * `app.file` -- the path to the script file * `app.module` -- the same, but the script is searched using the Lua search paths (and loaded using `require`) * `app.cfg` -- a user provided configuration (arbitrary map) This commit adds a few success/failure cases. The goal is to have simple test examples to add more ones easier in a future. Implemented several test helpers for typical scenarios that can be used outside of the application script test. Part of #8862 NO_DOC=testing improvements NO_CHANGELOG=see NO_DOC

The usual environment configuration source is useful for parametrized run: ``` TT_MEMTX_MEMORY=<...> tarantool --name <...> --config <...> ``` However, sometimes a user may need to set a default value, which doesn't rewrite one that is provided in the configuration. Now, it is possible to do using the environment variables with the `_DEFAULT` suffix. ``` TT_MEMTX_MEMORY_DEFAULT=<...> tarantool --name <...> --config <...> ``` This feature may be especially useful for wrappers that run tarantool internally with some default paths for data directories, socket files, pid file. We likely will use it in the `tt` tool. Part of #8862 NO_DOC=added into https://github.com/tarantool/doc/issues/3544 manually

It simplifies code reusage in the following commit, which adds the second environment config source. Part of #8862 NO_DOC=no user-visible changes, just code refactoring NO_CHANGELOG=see NO_DOC NO_TEST=see NO_DOC

Bump test-run to new version with the following improvements: - luatest: fix detect tarantool crash at exit [1] - Fix bug when lua script name truncated by dot [2] - Raise an error and log it if test timeouts are set incorrectly [3] - Pin PyYAML version to 5.3.1 [4] - Add ability to set path to executable file [5] - Migrate tarantoolctl from tarantool repository [6] - Fix test-run crash when default server is crashed [7] - Disable reproduce content printing [8] [1] tarantool/test-run@be693d1 [2] tarantool/test-run@a6405f1 [3] tarantool/test-run@d34ecb0 [4] tarantool/test-run@704420e [5] tarantool/test-run@0a70001 [6] tarantool/test-run@ad43d8f [7] tarantool/test-run@b31329e [8] tarantool/test-run@31f0ced NO_DOC=test NO_TEST=test NO_CHANGELOG=test

* ci: introduce testing workflow with sanitizers * build: introduce LUAJIT_USE_ASAN option * test: introduce test:done TAP helper * memprof: remove invalid assertions * ci: clean up workflow for exotic builds Closes #5878 NO_DOC=LuaJIT submodule bump NO_TEST=LuaJIT submodule bump NO_CHANGELOG=LuaJIT submodule bump