The `Catch2WithMain` target was added experimentally for v2.13.4
to provide potentially better compilation (and link) times to users.
However, having it compiled by default causes worse experience for
people who do not use it, and for the v2 versions the single include
distribution is still the main one.
Closes#2142
Because new glibc has changed `MINSIGSTKSZ` to be a syscall instead
of being constant, the signal posix handling needed changes, as it
used the value in constexpr context, for deciding size of an array.
It would be simple to fix it by having the handler determine the
signal handling stack size and allocate the memory every time the
handler is being installed, but that would add another allocation
and a syscall every time a test case is entered.
Instead, I split apart the idea of preparing fatal error handlers,
and engaging them, so that the memory can be allocated only once
and still be guarded by RAII.
Also turns out that Catch2's use of `MINSIGSTKSZ` was wrong, and
we should've been using `SIGSTKSZ` the whole time, which we use now.
Closes#2178
* [Issue 2154] Correct error when building with IBM's latest XLC compiler with xlclang++ front-end.
On AIX, the XLC 16.1.0.1 compiler considers the call to `std::abs` ambigious, so it needs help with a static_cast to the type of the template argument.
Co-authored-by: Martin Hořeňovský <martin.horenovsky@gmail.com>
Parsing C++ with regex in CMake is error prone and regularly leads to silently
dropped (not run) test cases.
Going forward the function `catch_discover_tests` from `contrib/CMake.cmake`
should be used.
For more information see https://github.com/catchorg/Catch2/issues/2092#issuecomment-747342765
Set `_CATCH_DISCOVER_TESTS_SCRIPT` helper variable globally. Otherwise in a
scoped call (like `add_subdirectory()`) the variable gets lost. This lost
variable results in a post build error with not much information to lead to the
root of the problem.
This enables the usage of the helper script with the following example structure
- CMakeLists.txt (project root with `add_subdirectory(external/catch2)`
- external/catch2
- CMakeLists.txt (contents listed below)
- contrib/Catch.cmake
- contrib/CatchAddTests.cmake
- catch2/catch.hpp
- tests
- CMakeLists.txt (add tests with `catch_discover_tests(${PROJECT_NAME})`)
contents of project specific helper `external/catch2/CMakeLists.txt`
```cmake
cmake_minimum_required (VERSION 3.1...${CMAKE_VERSION})
project(Catch2 LANGUAGES CXX VERSION 2.13.3)
add_library(Catch2 INTERFACE)
target_include_directories(Catch2
INTERFACE
$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}>
)
# provide a namespaced alias for clients to 'link' against if catch is included as a sub-project
add_library(Catch2::Catch2 ALIAS Catch2)
include(contrib/Catch.cmake)
```
It should provide a shared impl for all targets that need to link
against Catch2's implementation. However, due to limitations of
C++ linking and Catch2's v2 implementation, this is only experimental
and might not work under some circumstances.
The problem was that under specific circumstances, namely that none
of their children progressed, `GeneratorTracker` will not progress.
This was changed recently, to allow for code like this, where a
`SECTION` follows a `GENERATE` at the same level:
```cpp
SECTION("A") {}
auto a = GENERATE(1, 2);
SECTION("B") {}
```
However, this interacted badly with `SECTION` filters (`-c foo`),
as they could deactivate all `SECTION`s below a generator, and thus
stop it from progressing forever. This commit makes GeneratorTracker
check whether there are any filters active, and if they are, it checks
whether its section-children can ever run.
Fixes#2025
CMake 3.19 introduces new add_test() behavior guarded with the policy
CMP0110.
See: https://cmake.org/cmake/help/latest/policy/CMP0110.html
Update the helper script ParseAndAddCatchTests to consider the policy and
handle the test case name accordingly.
The problem was that Catch2 did not reliably include `<exception>`
before it checked for the feature test macro for
`std::uncaught_exceptions`. To avoid overhead of including
`<exception>` everywhere, the configuration check was split out
into a separate header.
Closes#2021
As far as I understand the standard, if there is a function called
`rng` in the global namespace, and a function argument called `rng`,
then the argument should shadow the function. This then means that
uses of `rng` inside the function should refer to the argument.
This is not the case for AppleClang 12.0.0. Luckily the workaround
is simple enough; just rename the argument. Given that the function
is 3 lines and uncomplicated, the change of the name doesn't really
affect readability.
Still, WTF AppleClang?
Closes#2030
* Change regex to allow parentheses inside the test macro for a type list
* Append a wildcard to the CTestName if the test case is a template
* Also change the regular expression so parentheses are allowed in names
(fixes#1848)
