before this change, we provide `boost_test_print_type()` for all types
which can be formatted using {fmt}. these types includes those who
fulfill the concept of range, and their element can be formatted using
{fmt}. if the compilation unit happens to include `fmt/ranges.h`.
the ranges are formatted with `boost_test_print_type()` as well. this
is what we expect. in other words, we use {fmt} to format types which
do not natively support {fmt}, but they fulfill the range concept.
but `boost::unit_test::basic_cstring` is one of them
- it can be formatted using operator<<, but it does not provide
fmt::format specialization
- it fulfills the concept of range
- and its element type is `char const`, which can be formatted using
{fmt}
that's why it's formatted like:
```
test/boost/sstable_directory_test.cc(317): fatal error: in "sstable_directory_test_generation_sanity": critical check ['s', 's', 't', '-', '>', 'g', 'e', 'n', 'e', 'r', 'a', 't', 'i', 'o', 'n', '(', ')', ' ', '=', '=', ' ', 's', 's', 't', '1', '-', '>', 'g', 'e', 'n', 'e', 'r', 'a', 't', 'i', 'o', 'n', '(', ')'] has failed`
```
where the string is formatted as a sequence-alike container. this
is far from readable.
so, in this change, we do not define `boost_test_print_type()` for
the types which natively support `operator<<` anymore. so they can
be printed with `operator<<` when boost::test prints them.
Fixes scylladb/scylladb#19637
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Closes scylladb/scylladb#19638
Scylla in-source tests.
For details on how to run the tests, see docs/dev/testing.md
Shared C++ utils, libraries are in lib/, for Python - pylib/
alternator - Python tests which connect to a single server and use the DynamoDB API unit, boost, raft - unit tests in C++ cql-pytest - Python tests which connect to a single server and use CQL topology* - tests that set up clusters and add/remove nodes cql - approval tests that use CQL and pre-recorded output rest_api - tests for Scylla REST API Port 9000 scylla-gdb - tests for scylla-gdb.py helper script nodetool - tests for C++ implementation of nodetool
If you can use an existing folder, consider adding your test to it. New folders should be used for new large categories/subsystems, or when the test environment is significantly different from some existing suite, e.g. you plan to start scylladb with different configuration, and you intend to add many tests and would like them to reuse an existing Scylla cluster (clusters can be reused for tests within the same folder).
To add a new folder, create a new directory, and then
copy & edit its suite.ini.