Specifically we add
* `gamma(a, b)`, which returns the magnitude of largest 1-ULP
step in range [a, b].
* `count_equidistant_float(a, b, distance)`, which returns the
number of equi-distant floats in range [a, b].
Technically, the declaration should not have a space between
the quotes and the underscore, because `_foo` is a reserved
identifier, but `""_foo` is not. In general it works, but newer
Clang versions warn about this, because WG21 wants to deprecate
and later remove this form completely.
The basic idea was to reduce the number of things dependent on the `Clock`
type. To that end, I replaced `Duration<Clock>` with `IDuration` typedef
for `std::nanoseconds`, and `FloatDuration<Clock>` with `FDuration`
typedef for `Duration<double, std::nano>`. We can generally assume that
any clock's duration can be expressed in nanoseconds, as long as we insert
`duration_cast`s into the right places.
Note that we cannot remove all dependence on `Clock` as a template
arguments, because functions that actually measure the elapsed time have
to use the Clock.
We also changed some template function arguments to pass plain function
pointers, so that the actual implementation can be placed into a cpp file.
* AssertionEnd does not reset the assertion info yet. That is done after populateReaction. And reset assertion info would also reset the result disposition to normal, so that any uncaught exception would be reported as failure
* Approving test output changes due to added unit tests
* Unit tests to throw std::runtime_error instead of std::exception
* Add a unit test to test incomplete assertion handler
---------
Co-authored-by: Ross <ross.tang@gfo-x.com>
To keep the compilation firewall effect, the implementations
are hidden behind a PIMPL. In this case it is probably not
worth it, but we can inline it later if needed.
Also split out helpers for testing matcher ranges (types whose
begin/end/empty/etc require ADL lookup, types whose iteration
uses iterator + sentinel pair, etc) into their own file.
Now we delay allocating owning `NameAndLocation` instances until
we construct a new tracker (because a tracker's lifetime can be
significantly different from the underlying tracked-thing's name).
This saves 4239 allocations (436948 -> 432709) when running
`./tests/SelfTest -o /dev/null`, at some cost to code clarity
due to introducing a new ref type, `NameAndLocationRef`.
* Add new SKIP macro for skipping tests at runtime
This adds a new `SKIP` macro for dynamically skipping tests at runtime.
The "skipped" status of a test case is treated as a first-class citizen,
like "succeeded" or "failed", and is reported with a new color on the
console.
* Don't show "skipped assertions" in console/compact reporters
Also extend skip tests to cover a few more use cases.
* Return exit code 4 if all test cases are skipped
* Use LightGrey for the skip colour
This isn't great, but is better than the deep blue that was borderline
invisible on dark backgrounds. The fix is to redo the colouring
a bit, including introducing light-blue that is actually visible.
* Add support for explicit skips in all reporters
* --allow-running-no-tests also allows all tests to be skipped
* Add docs for SKIP macro, deprecate IEventListener::skipTest
Co-authored-by: Martin Hořeňovský <martin.horenovsky@gmail.com>
Instead of redoing the whole line where path was found, only the
directory part of the path is removed, instead of removing all
of the line before the path starts.
This results in slight change in how junit and sonarqube approvals
come out, and significant change in how TeamCity reporter approvals
come out. This latter difference is the reason for the change,
as now the lines with `testFailed` and `testIgnored` messages
are not completely butchered.
This is needed so that we can use conjunction and other logical
type traits to workaround issue with older GCC versions (8 and
below), when they run into types that have ambiguous constructor
from `0`, see e.g. #2571.
However, using conjunction and friends in the SFINAE constraint
in the template parameter breaks for C++20 and up, due to the new
comparison operator rewriting rules. With C++20, when the compiler
see `a == b`, it also tries `b == a` and collects overload set
for both of these expressions.
In Catch2, this means that e.g. `REQUIRE( 1 == 2 )` would lead
the compiler to check overloads for both `ExprLhs<int> == int`
and `int == ExprLhs<int>`. Since the overload set and SFINAE
constraints assume that `ExprLhs<T>` is always on the left side,
when the compiler tries to resolve the template parameters, all
hell breaks loose and the compilation fails.
By moving the SFINAE constraints to the return type, the compiler
can discard the switched expression without having to resolve
the complex SFINAE constraints, and thus everything works the
way it is supposed to.
Fixes#2571
This has two effects:
1) This significantly improves the performance of ApprovalTests
run in WSL, because running the massively multi-reporter
test would cause lots of small and parallel writes across the
WSL-Windows FS boundary, completely mudering performance.
2) ApprovalTests can be run from multiple build dirs in parallel,
as long as they do not fail. However, if they do fail,
the multiple runs will still step on each other toes when
writing the unapproved files for user.
