As explained in issue #1273, `operator&&` and `operator||` should give
a proper compile time error on use instead of the compiler complaining
about them not being defined. This commit adds an `always_false` type in
`catch_meta.hpp` used for implementing a nice `static_assert` for both
of the abovementioned operators.
Closes#1273
This doesn't cause trouble with GCC/Clang and libstdc++, but IAR
and its stdlib apparently doesn't compile when you use `fno-exceptions`
and `std::current_exception`/`std::rethrow_exception`.
Fixes#1462
support for generating test cases based on multiple template template
types combined with template arguments for each of the template template
types specified
e.g.
```
TEMPLATE_PRODUCT_TEST_CASE("template product","[template]",
(std::tuple, std::pair, std::map),
((int,float),(char,double),(int,char)))
```
will effectively create 9 test cases with types:
std::tuple<int,float>
std::tuple<char,double>
std::tuple<int,char>
std::pair<int,float>
std::pair<char, double>
std::pair<int,char>
std::map<int,float>
std::map<char,double>
std::map<int,char>
Tested type is accessible in test case body as TestType
Unique name is created by appending ` - <index>` to test name
since preprocessor has some limitations in recursions
Closes#1454
The previous implemetation was just plain broken for most of
possible uses, the new one should work (even though it is ugly
as all hell, and should be improved ASAP).
Fixes#1436
This adds support for templated tests and test methods via
`TEMPLATE_TEST_CASE` and `TEMPLATE_TEST_CASE_METHOD` macros. These
work mostly just like their regular counterparts*, but take an
unlimited** number of types as their last arguments.
* Unlike the plain `TEST_CASE*` macros, the `TEMPLATE*` variants
require a tag string.
** In practice there is limit of about 300 types.
This is a temporarily workaround until we can nuke the current
verbosities system from the orbit and replace it with something
actually sane.
Fixes#1426
No matcher actually uses it, and there is no good reason for it,
as the best it can do for user is removing a single indirection
when using the pointer inside the matcher. Given the overhead of
other code that will be running during such time, it is completely
meaningless.
This also fixes compilation for PredicateMatcher<const char*>.
simple code with provided main function which just returns 0
leaks memory due to fact that singletons are not cleaned up
running valgrind on such simple application reports that 752 bytes
are still available in 11 blocks
this commit adds destructor to Catch::LeakDetector which calls
Catch::cleanUp()
By default, it expands into a `static_assert` + `SUCCEED` pair, but
it can also be deferred to runtime by defining
`CATCH_CONFIG_RUNTIME_STATIC_REQUIRE`, which causes it to expand
into plain old `REQUIRE`.
Closes#1362Closes#1356
* Session::applyCommandLine overload on wchar_t
This allows users on Windows to use Catch::Session::applyCommandLine
with wchar_t * arguments of application.
With this change Session::run became templated so both char and wchar_t
version have the same implementation.
Xml result of reported will now contain value of rng-seed in case it
is not zero.
The value will be stored in element Randomness and it's attribute seed.
Relates to #1402
Some platforms set the signedness of char to unsigned (eg. ARM).
Convert from char should not assume the signedness of char.
Fix build issue with -Werror,-Wtautological-unsigned-zero-compare flags.
Signed-off-by: Miguel Gaio <mgaio35@gmail.com>
Previously a mismatched prefix would be skipped before the actual
comparison would be performed. Obviously, it is supposed to be
_matching_ prefix that is skipped.
The StringMaker is off by default and can be enabled by a new macro `CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER`, to avoid increasing the footprint of stringification machinery by default.
This means
* Adding new configuration toggle `CATCH_CONFIG_DISABLE_EXCEPTIONS`
and a best-guess configuration auto-checking for it.
* Adding new set of internal macros, `CATCH_TRY`, `CATCH_CATCH_ALL`
and `CATCH_CATCH_ANON` that can be used in place of regular `try`,
`catch(...)` and `catch(T const&)` respectively, while disappearing
when `CATCH_CONFIG_DISABLE_EXCEPTIONS` is enabled.
* Replacing all uses of `throw` with calls to `Catch::throw_exception`
customization point.
* Providing a default implementation for the above customization point
when `CATCH_CONFIG_DISABLE_EXCEPTIONS` is set.
* Letting users override this implementation with their own.
* Some minor changes and ifdefs all around to support the above
issue #1360
It is possible to have multple given contexts in a single BDD scenario;
if you have to type 'and' in the GIVEN description; it's very likely you
need an AND.
A generic AND is not possible, thus a AND_GIVEN is added to complement
the AND_WHEN and AND_THEN.
Can be used without needing to increase indent:
SCENARIO("...") {
GIVEN("...")
AND_GIVEN("...") {
WHEN("...") {
THEN("...") {
// ...
}
}
}
}
would correctly output, when requested/needed:
Given: ...
And given: ...
When: ...
Then: ...
The padding had to be increased by a character in the output message, to
continue to be uniform.
The support is to be considered experimental, that is, the interfaces,
the first party generators and helper functions can change or be removed
at any point in time.
Related to #850
In case of 2 instances of SourceLineInfo constructed in the same
file, they will have the same `file` pointer (even at O0). Thus, we
can check if they are equal before calling potentially pointless
`strcmp`.
In theory the copy is cheap (couple of pointers change), but tests
are usually compiled in Debug mode/with minimal optimizations, which
means that most users will still have to pay the cost for those
function calls.
Because the macro name is compile-time constant, we do not have to
worry about lifetimes and will avoid allocation in case of missing
SSO or long macro name.
By opting the JUnit and XML reporters into it, we no longer run
into problem where they underreport the results without `-s` flag.
Related to #1264, #1267, #1310
- seems the #ifdef was necessary after all, because of the difference in the way the cpp files are included in the full project vs the single include
- in the OC project I moved the #include of catch_tostring.cpp first. That solves the project for now, but is a brittle solution
Happening when using clang and templated operators, clang cannot decide
between the operator provided by ReusableStringStream and the one provided
by the value value as both are templates. This is easily solved by calling
the operator<< through the member syntax.
Fixes#1285
This was removed in 64be2ad, to fix OS X approval tests. At the time
I couldn't investigate because I didn't have access to OS X, but this
fixed it (and since we don't have MinGW in CI, the breakage went
unnoticed).
As it turns out, piece-wise compilation of the Compact
reporter had broken OS X detection for a long time, and fixing it
was what broke the approvals. After the approval scripts were
changed to compensate, this change passes approval tests and fixes
Until now, the stack size for POSIX signal handling was determined by
the implementation defined limit `STKSZ`, which in some cases turned out
to be insufficient, leading to stack overflow inside the signal handler.
The new size, which was determined experimentally, is the larger of 32kb
or `MINSTKSZ`.
Fixes#1225
This should align more closely with the intended semantics, where
types without `StringMaker` specialization or `operator<<` overload
are passed down to the user defined fallback stringifier.
Related to #1024
This support is based on overriden `std::exception::what` method, so
if an exception does not do so meaningfully, the message is still
pointless.
This is only used as a fallback, both `StringMaker` specialization and
`operator<<` overload have priority..
Android apparently does not support `std::to_string`, so we add a
small polyfill over it. Right now only the ULP matcher uses it,
but we have had plans to use it in `StringMaker<int>` and friends,
as it performs a lot better than `std::stringstream` based
stringification on MSVC.
See #1280 for more details
While the comment format was valid C++, it breaks our tooling badly.
I opened up a github issue for our tooling, because unexpected
formatting of a block comment should not silently generate invalid
single header file, see #1269.
Unlike the relatively non-invasive old way of capturing stdout/stderr,
this new way is also able to capture output from C's stdlib functions
such as `printf`. This is done by redirecting stdout and stderr file
descriptors to a file, and then reading this file back.
This approach has two sizeable drawbacks:
1) Performance, obviously. Previously an installed capture made the
program run faster (as long as it was then discarded), because a call
to `std::cout` did not result in text output to the console. This new
capture method in fact forces disk IO. While it is likely that any
modern OS will keep this file in memory-cache and might never actually
issue the IO to the backing storage, it is still a possibility and
calls to the file system are not free.
2) Nonportability. While POSIX is usually assumed portable, and this
implementation relies only on a very common parts of it, it is no
longer standard C++ (or just plain C) and thus might not be available
on some obscure platforms. Different C libs might also implement the
relevant functions in a less-than-useful ways (e.g. MS's `tmpfile`
generates a temp file inside system folder, so it will not work
without elevated privileges and thus is useless).
These two drawbacks mean that, at least for now, the new capture is
opt-in. To opt-in, `CATCH_CONFIG_EXPERIMENTAL_REDIRECT` needs to be
defined in the implementation file.
Closes#1243
std::isalnum expects an int in the range of unsigned char or -1 (EOF),
otherwise it exhibits undefined behavior. Casting from char to unsigned
char avoids this.
MSVC warns about this when compiling with /analyze.
Catch2's documentation promises that listeners are called _before_
reporters, but because of the previous implementation, they were
called _after_ reporters. This commit fixes that.
Closes#1234
The fix leaves an open question: should we keep treating refs
to static array of chars as strings, or should we instead
use `strnlen` to check if it is null-terminated within the buffer
Fixes#1238
Specific platforms (e.g. TDM-GCC) can have terrible timer resolution,
and our checking code will then loop for an inordinate amount of time.
This change will make it so that the calibration gives up after 3
seconds and just uses the already measured values.
This leaves one open question, how to signal that the resolution
is terrible and benchmarking should not happen?
Fixes#1237
There are still some holes, e.g. we leave surrogate pairs be
even though they are not a part of valid UTF-8, but this might
be for the better -- WTF-8 does support surrogate pairs inside
text.
Closes#1207
DJGPP cross compiler is targeting DOS which does not support POSIX
signals. Probably for the same reason (targeting DOS) this compiler
does not support wide characters.
This allows reducing the amount of friends needed for its interface
and some extra tricks later.
The bad part is that the pointer can become invalidated via
calls to other StringRef's public methods, but c'est la vie.
To prevent bugs with stitching system headers inside Catch,
the proxy header is responsible for guarding against inclusion
on Linux, rather than the includers.
Might be related to #1197
ReusableStringStream holds a std::ostringstream internally, but only exposes the ostream interface.
It caches a pool of ostringstreams in a vector which is currently global, but will be made thread-local.
Altogether this should enable both runtime and compile-time benefits. although more work is needed to realise the compile time opportunities.
1. Use it to conditionally define CATCH_INTERNAL_CONFIG_COUNTER, not
CATCH_CONFIG_COUNTER, as __JETBRAINS_IDE__ is similar to
compiler-provided macros, not to user-provided ones.
2. Since __COUNTER__ will work starting with CLion 2017.3, use it
when possible (and hopefully remove this check altogether
at some point).
Also hides std::chrono, std::pair and std::chrono::* behind
new configuration macros, CATCH_CONFIG_ENABLE_*_STRINGMAKER
to avoid dragging in <utility>, <tuple> and <chrono> in common
path, unless requested.
This works around a bug in libcxxrt handling of active exception count
that caused std::uncaught_exception() to return true even if there was
none.
Closes#1028
An empty default implementation is provided to keep backward compatibility.
Called when signal or Structured Exception is encountered.
Related to #1005
1. Use it to conditionally define CATCH_INTERNAL_CONFIG_COUNTER, not
CATCH_CONFIG_COUNTER, as __JETBRAINS_IDE__ is similar to
compiler-provided macros, not to user-provided ones.
2. Since __COUNTER__ will work starting with CLion 2017.3, use it
when possible (and hopefully remove this check altogether
at some point).
Swept:
`-Wpadded` in some places (where it caused extra size, instead of just
saying "hey, we padded struct at the end to align, just as standard says")
`-Wweak-vtables` everywhere (Clang)
`-Wexit-time-destructors` everywhere (Clang)
`-Wmissing-noreturn` everywhere (Clang)
The last three are enabled for Clang compilation going forward.
Also enabled `-Wunreachable-code` for Clang and GCC
A) non-const comparison operators should not exist and should not be
encouraged
B) The logic breaks comparing function pointers certain way
C) It was inconsistent anyway, as it only applied to `==` and `!=`
Closes#925
* Assertions are defined into (void)(0) no-op
* SECTIONs are defined away (leaving {} as scope)
* TEST_CASEs and TEST_CASE_METHODs are not registered.
* REGISTER_TEST_CASE is defined into (void)(0) no-op
* METHOD_AS_TEST_CASE is defined away
