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catch2/docs/release-notes.md
Martin Hořeňovský 13e01d273a
Cherry pick v2.11.0 release notes and docs
2020-02-13 15:30:46 +01:00

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# Release notes
**Contents**<br>
[2.11.0](#2110)<br>
[2.10.2](#2102)<br>
[2.10.1](#2101)<br>
[2.10.0](#2100)<br>
[2.9.2](#292)<br>
[2.9.1](#291)<br>
[2.9.0](#290)<br>
[2.8.0](#280)<br>
[2.7.2](#272)<br>
[2.7.1](#271)<br>
[2.7.0](#270)<br>
[2.6.1](#261)<br>
[2.6.0](#260)<br>
[2.5.0](#250)<br>
[2.4.2](#242)<br>
[2.4.1](#241)<br>
[2.4.0](#240)<br>
[2.3.0](#230)<br>
[2.2.3](#223)<br>
[2.2.2](#222)<br>
[2.2.1](#221)<br>
[2.2.0](#220)<br>
[2.1.2](#212)<br>
[2.1.1](#211)<br>
[2.1.0](#210)<br>
[2.0.1](#201)<br>
[Older versions](#older-versions)<br>
[Even Older versions](#even-older-versions)<br>
## 3.0.0 (in progress)
### (Potentially) Breaking changes
* `ANON_TEST_CASE` has been removed, use `TEST_CASE` with no arguments instead (#1220)
* `--list*` commands no longer have non-zero return code (#1410)
* `--list-test-names-only` has been removed (#1190)
* You should use verbosity-modifiers for `--list-tests` instead
* `--list*` commands are now piped through the reporters
* The top-level reporter interface provides default implementation that works just as the old one
* XmlReporter outputs a machine-parseable XML
* `TEST_CASE` description support has been removed
* If the second argument has text outside tags, the text will be ignored.
* Hidden test cases are no longer included just because they don't match an exclusion tag
* Previously, a `TEST_CASE("A", "[.foo]")` would be included by asking for `~[bar]`.
* `PredicateMatcher` is no longer type erased.
* This means that the type of the provided predicate is part of the `PredicateMatcher`'s type
* `SectionInfo` no longer contains section description as a member (#1319)
* You can still write `SECTION("ShortName", "Long and wordy description")`, but the description is thrown away
* The description type now must be a `const char*` or implicitly convertible to it
* The `[!hide]` tag has been removed.
* Use `[.]` or `[.foo]` instead.
### Fixes
* The `INFO` macro no longer contains superfluous semicolon (#1456)
* The `--list*` family of command line flags now return 0 on success (#1410, #1146)
### Other changes
* `CATCH_CONFIG_DISABLE_MATCHERS` no longer exists.
* If you do not want to use Matchers in a TU, do not include their header.
* `CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER` no longer exists.
* `StringMaker` specializations for <chrono> are always provided
## 2.11.0
### Improvements
* JUnit reporter output now contains more details in case of failure (#1347, #1719)
* Added SonarQube Test Data reporter (#1738)
* It is in a separate header, just like the TAP, Automake, and TeamCity reporters
* `range` generator now allows floating point numbers (#1776)
* Reworked part of internals to increase throughput
### Fixes
* The single header version should contain full benchmarking support (#1800)
* `[.foo]` is now properly parsed as `[.][foo]` when used on the command line (#1798)
* Fixed compilation of benchmarking on platforms where `steady_clock::period` is not `std::nano` (#1794)
## 2.10.2
### Improvements
* Catch2 will now compile on platform where `INFINITY` is double (#1782)
### Fixes
* Warning suppressed during listener registration will no longer leak
## 2.10.1
### Improvements
* Catch2 now guards itself against `min` and `max` macros from `windows.h` (#1772)
* Templated tests will now compile with ICC (#1748)
* `WithinULP` matcher now uses scientific notation for stringification (#1760)
### Fixes
* Templated tests no longer trigger `-Wunused-templates` (#1762)
* Suppressed clang-analyzer false positive in context getter (#1230, #1735)
### Miscellaneous
* CMake no longer prohibits in-tree build when Catch2 is used as a subproject (#1773, #1774)
## 2.10.0
### Fixes
* `TEMPLATE_LIST_TEST_CASE` now properly handles non-copyable and non-movable types (#1729)
* Fixed compilation error on Solaris caused by a system header defining macro `TT` (#1722, #1723)
* `REGISTER_ENUM` will now fail at compilation time if the registered enum is too large
* Removed use of `std::is_same_v` in C++17 mode (#1757)
* Fixed parsing of escaped special characters when reading test specs from a file (#1767, #1769)
### Improvements
* Trailing and leading whitespace in test/section specs are now ignored.
* Writing to Android debug log now uses `__android_log_write` instead of `__android_log_print`
* Android logging support can now be turned on/off at compile time (#1743)
* The toggle is `CATCH_CONFIG_ANDROID_LOGWRITE`
* Added a generator that returns elements of a range
* Use via `from_range(from, to)` or `from_range(container)`
* Added support for CRTs that do not provide `std::nextafter` (#1739)
* They must still provide global `nextafter{f,l,}`
* Enabled via `CATCH_CONFIG_GLOBAL_NEXTAFTER`
* Special cased `Approx(inf)` not to match non-infinite values
* Very strictly speaking this might be a breaking change, but it should match user expectations better
* The output of benchmarking through the Console reporter when `--benchmark-no-analysis` is set is now much simpler (#1768)
* Added a matcher that can be used for checking an exceptions message (#1649, #1728)
* The matcher helper function is called `Message`
* The exception must publicly derive from `std::exception`
* The matching is done exactly, including case and whitespace
* Added a matcher that can be used for checking relative equality of floating point numbers (#1746)
* Unlike `Approx`, it considers both sides when determining the allowed margin
* Special cases `NaN` and `INFINITY` to match user expectations
* The matcher helper function is called `WithinRel`
* The ULP matcher now allows for any possible distance between the two numbers
* The random number generators now use Catch-global instance of RNG (#1734, #1736)
* This means that nested random number generators actually generate different numbers
### Miscellaneous
* In-repo PNGs have been optimized to lower overhead of using Catch2 via git clone
* Catch2 now uses its own implementation of the URBG concept
* In the future we also plan to use our own implementation of the distributions from `<random>` to provide cross-platform repeatability of random results
## 2.9.2
### Fixes
* `ChunkGenerator` can now be used with chunks of size 0 (#1671)
* Nested subsections are now run properly when specific section is run via the `-c` argument (#1670, #1673)
* Catch2 now consistently uses `_WIN32` to detect Windows platform (#1676)
* `TEMPLATE_LIST_TEST_CASE` now support non-default constructible type lists (#1697)
* Fixed a crash in the XMLReporter when a benchmark throws exception during warmup (#1706)
* Fixed a possible infinite loop in CompactReporter (#1715)
* Fixed `-w NoTests` returning 0 even when no tests were matched (#1449, #1683, #1684)
* Fixed matcher compilation under Obj-C++ (#1661)
### Improvements
* `RepeatGenerator` and `FixedValuesGenerator` now fail to compile when used with `bool` (#1692)
* Previously they would fail at runtime.
* Catch2 now supports Android's debug logging for its debug output (#1710)
* Catch2 now detects and configures itself for the RTX platform (#1693)
* You still need to pass `--benchmark-no-analysis` if you are using benchmarking under RTX
* Removed a "storage class is not first" warning when compiling Catch2 with PGI compiler (#1717)
### Miscellaneous
* Documentation now contains indication when a specific feature was introduced (#1695)
* These start with Catch2 v2.3.0, (a bit over a year ago).
* `docs/contributing.md` has been updated to provide contributors guidance on how to add these to newly written documentation
* Various other documentation improvements
* ToC fixes
* Documented `--order` and `--rng-seed` command line options
* Benchmarking documentation now clearly states that it requires opt-in
* Documented `CATCH_CONFIG_CPP17_OPTIONAL` and `CATCH_CONFIG_CPP17_BYTE` macros
* Properly documented built-in vector matchers
* Improved `*_THROWS_MATCHES` documentation a bit
* CMake config file is now arch-independent even if `CMAKE_SIZEOF_VOID_P` is in CMake cache (#1660)
* `CatchAddTests` now properly escapes `[` and `]` in test names (#1634, #1698)
* Reverted `CatchAddTests` adding tags as CTest labels (#1658)
* The script broke when test names were too long
* Overwriting `LABELS` caused trouble for users who set them manually
* CMake does not let users append to `LABELS` if the test name has spaces
## 2.9.1
### Fixes
* Fix benchmarking compilation failure in files without `CATCH_CONFIG_EXTERNAL_INTERFACES` (or implementation)
## 2.9.0
### Improvements
* The experimental benchmarking support has been replaced by integrating Nonius code (#1616)
* This provides a much more featurefull micro-benchmarking support.
* Due to the compilation cost, it is disabled by default. See the documentation for details.
* As far as backwards compatibility is concerned, this feature is still considered experimental in that we might change the interface based on user feedback.
* `WithinULP` matcher now shows the acceptable range (#1581)
* Template test cases now support type lists (#1627)
## 2.8.0
### Improvements
* Templated test cases no longer check whether the provided types are unique (#1628)
* This allows you to e.g. test over `uint32_t`, `uint64_t`, and `size_t` without compilation failing
* The precision of floating point stringification can be modified by user (#1612, #1614)
* We now provide `REGISTER_ENUM` convenience macro for generating `StringMaker` specializations for enums
* See the "String conversion" documentation for details
* Added new set of macros for template test cases that enables the use of NTTPs (#1531, #1609)
* See "Test cases and sections" documentation for details
### Fixes
* `UNSCOPED_INFO` macro now has a prefixed/disabled/prefixed+disabled versions (#1611)
* Reporting errors at startup should no longer cause a segfault under certain circumstances (#1626)
### Miscellaneous
* CMake will now prevent you from attempting in-tree build (#1636, #1638)
* Previously it would break with an obscure error message during the build step
## 2.7.2
### Improvements
* Added an approximate vector matcher (#1499)
### Fixes
* Filters will no longer be shown if there were none
* Fixed compilation error when using Homebrew GCC on OS X (#1588, #1589)
* Fixed the console reporter not showing messages that start with a newline (#1455, #1470)
* Modified JUnit reporter's output so that rng seed and filters are reported according to the JUnit schema (#1598)
* Fixed some obscure warnings and static analysis passes
### Miscellaneous
* Various improvements to `ParseAndAddCatchTests` (#1559, #1601)
* When a target is parsed, it receives `ParseAndAddCatchTests_TESTS` property which summarizes found tests
* Fixed problem with tests not being found if the `OptionalCatchTestLauncher` variables is used
* Including the script will no longer forcefully modify `CMAKE_MINIMUM_REQUIRED_VERSION`
* CMake object libraries are ignored when parsing to avoid needless warnings
* `CatchAddTests` now adds test's tags to their CTest labels (#1600)
* Added basic CPack support to our build
## 2.7.1
### Improvements
* Reporters now print out the filters applied to test cases (#1550, #1585)
* Added `GENERATE_COPY` and `GENERATE_REF` macros that can use variables inside the generator expression
* Because of the significant danger of lifetime issues, the default `GENERATE` macro still does not allow variables
* The `map` generator helper now deduces the mapped return type (#1576)
### Fixes
* Fixed ObjC++ compilation (#1571)
* Fixed test tag parsing so that `[.foo]` is now parsed as `[.][foo]`.
* Suppressed warning caused by the Windows headers defining SE codes in different manners (#1575)
## 2.7.0
### Improvements
* `TEMPLATE_PRODUCT_TEST_CASE` now uses the resulting type in the name, instead of the serial number (#1544)
* Catch2's single header is now strictly ASCII (#1542)
* Added generator for random integral/floating point types
* The types are inferred within the `random` helper
* Added back RangeGenerator (#1526)
* RangeGenerator returns elements within a certain range
* Added ChunkGenerator generic transform (#1538)
* A ChunkGenerator returns the elements from different generator in chunks of n elements
* Added `UNSCOPED_INFO` (#415, #983, #1522)
* This is a variant of `INFO` that lives until next assertion/end of the test case.
### Fixes
* All calls to C stdlib functions are now `std::` qualified (#1541)
* Code brought in from Clara was also updated.
* Running tests will no longer open the specified output file twice (#1545)
* This would cause trouble when the file was not a file, but rather a named pipe
* Fixes the CLion/Resharper integration with Catch
* Fixed `-Wunreachable-code` occurring with (old) ccache+cmake+clang combination (#1540)
* Fixed `-Wdefaulted-function-deleted` warning with Clang 8 (#1537)
* Catch2's type traits and helpers are now properly namespaced inside `Catch::` (#1548)
* Fixed std{out,err} redirection for failing test (#1514, #1525)
* Somehow, this bug has been present for well over a year before it was reported
### Contrib
* `ParseAndAddCatchTests` now properly escapes commas in the test name
## 2.6.1
### Improvements
* The JUnit reporter now also reports random seed (#1520, #1521)
### Fixes
* The TAP reporter now formats comments with test name properly (#1529)
* `CATCH_REQUIRE_THROWS`'s internals were unified with `REQUIRE_THROWS` (#1536)
* This fixes a potential `-Wunused-value` warning when used
* Fixed a potential segfault when using any of the `--list-*` options (#1533, #1534)
## 2.6.0
**With this release the data generator feature is now fully supported.**
### Improvements
* Added `TEMPLATE_PRODUCT_TEST_CASE` (#1454, #1468)
* This allows you to easily test various type combinations, see documentation for details
* The error message for `&&` and `||` inside assertions has been improved (#1273, #1480)
* The error message for chained comparisons inside assertions has been improved (#1481)
* Added `StringMaker` specialization for `std::optional` (#1510)
* The generator interface has been redone once again (#1516)
* It is no longer considered experimental and is fully supported
* The new interface supports "Input" generators
* The generator documentation has been fully updated
* We also added 2 generator examples
### Fixes
* Fixed `-Wredundant-move` on newer Clang (#1474)
* Removed unreachable mentions `std::current_exception`, `std::rethrow_exception` in no-exceptions mode (#1462)
* This should fix compilation with IAR
* Fixed missing `<type_traits>` include (#1494)
* Fixed various static analysis warnings
* Unrestored stream state in `XmlWriter` (#1489)
* Potential division by zero in `estimateClockResolution` (#1490)
* Uninitialized member in `RunContext` (#1491)
* `SourceLineInfo` move ops are now marked `noexcept`
* `CATCH_BREAK_INTO_DEBUGGER` is now always a function
* Fix double run of a test case if user asks for a specific section (#1394, #1492)
* ANSI colour code output now respects `-o` flag and writes to the file as well (#1502)
* Fixed detection of `std::variant` support for compilers other than Clang (#1511)
### Contrib
* `ParseAndAddCatchTests` has learned how to use `DISABLED` CTest property (#1452)
* `ParseAndAddCatchTests` now works when there is a whitspace before the test name (#1493)
### Miscellaneous
* We added new issue templates for reporting issues on GitHub
* `contributing.md` has been updated to reflect the current test status (#1484)
## 2.5.0
### Improvements
* Added support for templated tests via `TEMPLATE_TEST_CASE` (#1437)
### Fixes
* Fixed compilation of `PredicateMatcher<const char*>` by removing partial specialization of `MatcherMethod<T*>`
* Listeners now implicitly support any verbosity (#1426)
* Fixed compilation with Embarcadero builder by introducing `Catch::isnan` polyfill (#1438)
* Fixed `CAPTURE` asserting for non-trivial captures (#1436, #1448)
### Miscellaneous
* We should now be providing first party Conan support via https://bintray.com/catchorg/Catch2 (#1443)
* Added new section "deprecations and planned changes" to the documentation
* It contains summary of what is deprecated and might change with next major version
* From this release forward, the released headers should be pgp signed (#430)
* KeyID `E29C 46F3 B8A7 5028 6079 3B7D ECC9 C20E 314B 2360`
* or https://codingnest.com/files/horenmar-publickey.asc
## 2.4.2
### Improvements
* XmlReporter now also outputs the RNG seed that was used in a run (#1404)
* `Catch::Session::applyCommandLine` now also accepts `wchar_t` arguments.
* However, Catch2 still does not support unicode.
* Added `STATIC_REQUIRE` macro (#1356, #1362)
* Catch2's singleton's are now cleaned up even if tests are run (#1411)
* This is mostly useful as a FP prevention for users who define their own main.
* Specifying an invalid reporter via `-r` is now reported sooner (#1351, #1422)
### Fixes
* Stringification no longer assumes that `char` is signed (#1399, #1407)
* This caused a `Wtautological-compare` warning.
* SFINAE for `operator<<` no longer sees different overload set than the actual insertion (#1403)
### Contrib
* `catch_discover_tests` correctly adds tests with comma in name (#1327, #1409)
* Added a new customization point in how the tests are launched to `catch_discover_tests`
## 2.4.1
### Improvements
* Added a StringMaker for `std::(w)string_view` (#1375, #1376)
* Added a StringMaker for `std::variant` (#1380)
* This one is disabled by default to avoid increased compile-time drag
* Added detection for cygwin environment without `std::to_string` (#1396, #1397)
### Fixes
* `UnorderedEqualsMatcher` will no longer accept erroneously accept
vectors that share suffix, but are not permutation of the desired vector
* Abort after (`-x N`) can no longer be overshot by nested `REQUIRES` and
subsequently ignored (#1391, #1392)
## 2.4.0
**This release brings two new experimental features, generator support
and a `-fno-exceptions` support. Being experimental means that they
will not be subject to the usual stability guarantees provided by semver.**
### Improvements
* Various small runtime performance improvements
* `CAPTURE` macro is now variadic
* Added `AND_GIVEN` macro (#1360)
* Added experimental support for data generators
* See [their documentation](generators.md) for details
* Added support for compiling and running Catch without exceptions
* Doing so limits the functionality somewhat
* Look [into the documentation](configuration.md#disablingexceptions) for details
### Fixes
* Suppressed `-Wnon-virtual-dtor` warnings in Matchers (#1357)
* Suppressed `-Wunreachable-code` warnings in floating point matchers (#1350)
### CMake
* It is now possible to override which Python is used to run Catch's tests (#1365)
* Catch now provides infrastructure for adding tests that check compile-time configuration
* Catch no longer tries to install itself when used as a subproject (#1373)
* Catch2ConfigVersion.cmake is now generated as arch-independent (#1368)
* This means that installing Catch from 32-bit machine and copying it to 64-bit one works
* This fixes conan installation of Catch
## 2.3.0
**This release changes the include paths provided by our CMake and
pkg-config integration. The proper include path for the single-header
when using one of the above is now `<catch2/catch.hpp>`. This change
also necessitated changes to paths inside the repository, so that the
single-header version is now at `single_include/catch2/catch.hpp`, rather
than `single_include/catch.hpp`.**
### Fixes
* Fixed Objective-C++ build
* `-Wunused-variable` suppression no longer leaks from Catch's header under Clang
* Implementation of the experimental new output capture can now be disabled (#1335)
* This allows building Catch2 on platforms that do not provide things like `dup` or `tmpfile`.
* The JUnit and XML reporters will no longer skip over successful tests when running without `-s` (#1264, #1267, #1310)
* See improvements for more details
### Improvements
* pkg-config and CMake integration has been rewritten
* If you use them, the new include path is `#include <catch2/catch.hpp>`
* CMake installation now also installs scripts from `contrib/`
* For details see the [new documentation](cmake-integration.md#top)
* Reporters now have a new customization point, `ReporterPreferences::shouldReportAllAssertions`
* When this is set to `false` and the tests are run without `-s`, passing assertions are not sent to the reporter.
* Defaults to `false`.
* Added `DYNAMIC_SECTION`, a section variant that constructs its name using stream
* This means that you can do `DYNAMIC_SECTION("For X := " << x)`.
## 2.2.3
**To fix some of the bugs, some behavior had to change in potentially breaking manner.**
**This means that even though this is a patch release, it might not be a drop-in replacement.**
### Fixes
* Listeners are now called before reporter
* This was always documented to be the case, now it actually works that way
* Catch's commandline will no longer accept multiple reporters
* This was done because multiple reporters never worked properly and broke things in non-obvious ways
* **This has potential to be a breaking change**
* MinGW is now detected as Windows platform w/o SEH support (#1257)
* This means that Catch2 no longer tries to use POSIX signal handling when compiled with MinGW
* Fixed potential UB in parsing tags using non-ASCII characters (#1266)
* Note that Catch2 still supports only ASCII test names/tags/etc
* `TEST_CASE_METHOD` can now be used on classnames containing commas (#1245)
* You have to enclose the classname in extra set of parentheses
* Fixed insufficient alt stack size for POSIX signal handling (#1225)
* Fixed compilation error on Android due to missing `std::to_string` in C++11 mode (#1280)
* Fixed the order of user-provided `FALLBACK_STRINGIFIER` in stringification machinery (#1024)
* It was intended to be replacement for built-in fallbacks, but it was used _after_ them.
* **This has potential to be a breaking change**
* Fixed compilation error when a type has an `operator<<` with templated lhs (#1285, #1306)
### Improvements
* Added a new, experimental, output capture (#1243)
* This capture can also redirect output written via C apis, e.g. `printf`
* To opt-in, define `CATCH_CONFIG_EXPERIMENTAL_REDIRECT` in the implementation file
* Added a new fallback stringifier for classes derived from `std::exception`
* Both `StringMaker` specialization and `operator<<` overload are given priority
### Miscellaneous
* `contrib/` now contains dbg scripts that skip over Catch's internals (#904, #1283)
* `gdbinit` for gdb `lldbinit` for lldb
* `CatchAddTests.cmake` no longer strips whitespace from tests (#1265, #1281)
* Online documentation now describes `--use-colour` option (#1263)
## 2.2.2
### Fixes
* Fixed bug in `WithinAbs::match()` failing spuriously (#1228)
* Fixed clang-tidy diagnostic about virtual call in destructor (#1226)
* Reduced the number of GCC warnings suppression leaking out of the header (#1090, #1091)
* Only `-Wparentheses` should be leaking now
* Added upper bound on the time benchmark timer calibration is allowed to take (#1237)
* On platforms where `std::chrono::high_resolution_clock`'s resolution is low, the calibration would appear stuck
* Fixed compilation error when stringifying static arrays of `unsigned char`s (#1238)
### Improvements
* XML encoder now hex-encodes invalid UTF-8 sequences (#1207)
* This affects xml and junit reporters
* Some invalid UTF-8 parts are left as is, e.g. surrogate pairs. This is because certain extensions of UTF-8 allow them, such as WTF-8.
* CLR objects (`T^`) can now be stringified (#1216)
* This affects code compiled as C++/CLI
* Added `PredicateMatcher`, a matcher that takes an arbitrary predicate function (#1236)
* See [documentation for details](https://github.com/catchorg/Catch2/blob/master/docs/matchers.md)
### Others
* Modified CMake-installed pkg-config to allow `#include <catch.hpp>`(#1239)
* The plans to standardize on `#include <catch2/catch.hpp>` are still in effect
## 2.2.1
### Fixes
* Fixed compilation error when compiling Catch2 with `std=c++17` against libc++ (#1214)
* Clara (Catch2's CLI parsing library) used `std::optional` without including it explicitly
* Fixed Catch2 return code always being 0 (#1215)
* In the words of STL, "We feel superbad about letting this in"
## 2.2.0
### Fixes
* Hidden tests are not listed by default when listing tests (#1175)
* This makes `catch_discover_tests` CMake script work better
* Fixed regression that meant `<windows.h>` could potentially not be included properly (#1197)
* Fixed installing `Catch2ConfigVersion.cmake` when Catch2 is a subproject.
### Improvements
* Added an option to warn (+ exit with error) when no tests were ran (#1158)
* Use as `-w NoTests`
* Added provisional support for Emscripten (#1114)
* [Added a way to override the fallback stringifier](https://github.com/catchorg/Catch2/blob/master/docs/configuration.md#fallback-stringifier) (#1024)
* This allows project's own stringification machinery to be easily reused for Catch
* `Catch::Session::run()` now accepts `char const * const *`, allowing it to accept array of string literals (#1031, #1178)
* The embedded version of Clara was bumped to v1.1.3
* Various minor performance improvements
* Added support for DJGPP DOS crosscompiler (#1206)
## 2.1.2
### Fixes
* Fixed compilation error with `-fno-rtti` (#1165)
* Fixed NoAssertion warnings
* `operator<<` is used before range-based stringification (#1172)
* Fixed `-Wpedantic` warnings (extra semicolons and binary literals) (#1173)
### Improvements
* Added `CATCH_VERSION_{MAJOR,MINOR,PATCH}` macros (#1131)
* Added `BrightYellow` colour for use in reporters (#979)
* It is also used by ConsoleReporter for reconstructed expressions
### Other changes
* Catch is now exported as a CMake package and linkable target (#1170)
## 2.1.1
### Improvements
* Static arrays are now properly stringified like ranges across MSVC/GCC/Clang
* Embedded newer version of Clara -- v1.1.1
* This should fix some warnings dragged in from Clara
* MSVC's CLR exceptions are supported
### Fixes
* Fixed compilation when comparison operators do not return bool (#1147)
* Fixed CLR exceptions blowing up the executable during translation (#1138)
### Other changes
* Many CMake changes
* `NO_SELFTEST` option is deprecated, use `BUILD_TESTING` instead.
* Catch specific CMake options were prefixed with `CATCH_` for namespacing purposes
* Other changes to simplify Catch2's packaging
## 2.1.0
### Improvements
* Various performance improvements
* On top of the performance regression fixes
* Experimental support for PCH was added (#1061)
* `CATCH_CONFIG_EXTERNAL_INTERFACES` now brings in declarations of Console, Compact, XML and JUnit reporters
* `MatcherBase` no longer has a pointless second template argument
* Reduced the number of warning suppressions that leak into user's code
* Bugs in g++ 4.x and 5.x mean that some of them have to be left in
### Fixes
* Fixed performance regression from Catch classic
* One of the performance improvement patches for Catch classic was not applied to Catch2
* Fixed platform detection for iOS (#1084)
* Fixed compilation when `g++` is used together with `libc++` (#1110)
* Fixed TeamCity reporter compilation with the single header version
* To fix the underlying issue we will be versioning reporters in single_include folder per release
* The XML reporter will now report `WARN` messages even when not used with `-s`
* Fixed compilation when `VectorContains` matcher was combined using `&&` (#1092)
* Fixed test duration overflowing after 10 seconds (#1125, #1129)
* Fixed `std::uncaught_exception` deprecation warning (#1124)
### New features
* New Matchers
* Regex matcher for strings, `Matches`.
* Set-equal matcher for vectors, `UnorderedEquals`
* Floating point matchers, `WithinAbs` and `WithinULP`.
* Stringification now attempts to decompose all containers (#606)
* Containers are objects that respond to ADL `begin(T)` and `end(T)`.
### Other changes
* Reporters will now be versioned in the `single_include` folder to ensure their compatibility with the last released version
## 2.0.1
### Breaking changes
* Removed C++98 support
* Removed legacy reporter support
* Removed legacy generator support
* Generator support will come back later, reworked
* Removed `Catch::toString` support
* The new stringification machinery uses `Catch::StringMaker` specializations first and `operator<<` overloads second.
* Removed legacy `SCOPED_MSG` and `SCOPED_INFO` macros
* Removed `INTERNAL_CATCH_REGISTER_REPORTER`
* `CATCH_REGISTER_REPORTER` should be used to register reporters
* Removed legacy `[hide]` tag
* `[.]`, `[.foo]` and `[!hide]` are still supported
* Output into debugger is now colourized
* `*_THROWS_AS(expr, exception_type)` now unconditionally appends `const&` to the exception type.
* `CATCH_CONFIG_FAST_COMPILE` now affects the `CHECK_` family of assertions as well as `REQUIRE_` family of assertions
* This is most noticeable in `CHECK(throws())`, which would previously report failure, properly stringify the exception and continue. Now it will report failure and stop executing current section.
* Removed deprecated matcher utility functions `Not`, `AllOf` and `AnyOf`.
* They are superseded by operators `!`, `&&` and `||`, which are natural and do not have limited arity
* Removed support for non-const comparison operators
* Non-const comparison operators are an abomination that should not exist
* They were breaking support for comparing function to function pointer
* `std::pair` and `std::tuple` are no longer stringified by default
* This is done to avoid dragging in `<tuple>` and `<utility>` headers in common path
* Their stringification can be enabled per-file via new configuration macros
* `Approx` is subtly different and hopefully behaves more as users would expect
* `Approx::scale` defaults to `0.0`
* `Approx::epsilon` no longer applies to the larger of the two compared values, but only to the `Approx`'s value
* `INFINITY == Approx(INFINITY)` returns true
### Improvements
* Reporters and Listeners can be defined in files different from the main file
* The file has to define `CATCH_CONFIG_EXTERNAL_INTERFACES` before including catch.hpp.
* Errors that happen during set up before main are now caught and properly reported once main is entered
* If you are providing your own main, you can access and use these as well.
* New assertion macros, *_THROWS_MATCHES(expr, exception_type, matcher) are provided
* As the arguments suggest, these allow you to assert that an expression throws desired type of exception and pass the exception to a matcher.
* JUnit reporter no longer has significantly different output for test cases with and without sections
* Most assertions now support expressions containing commas (ie `REQUIRE(foo() == std::vector<int>{1, 2, 3});`)
* Catch now contains experimental micro benchmarking support
* See `projects/SelfTest/Benchmark.tests.cpp` for examples
* The support being experiment means that it can be changed without prior notice
* Catch uses new CLI parsing library (Clara)
* Users can now easily add new command line options to the final executable
* This also leads to some changes in `Catch::Session` interface
* All parts of matchers can be removed from a TU by defining `CATCH_CONFIG_DISABLE_MATCHERS`
* This can be used to somewhat speed up compilation times
* An experimental implementation of `CATCH_CONFIG_DISABLE` has been added
* Inspired by Doctest's `DOCTEST_CONFIG_DISABLE`
* Useful for implementing tests in source files
* ie for functions in anonymous namespaces
* Removes all assertions
* Prevents `TEST_CASE` registrations
* Exception translators are not registered
* Reporters are not registered
* Listeners are not registered
* Reporters/Listeners are now notified of fatal errors
* This means specific signals or structured exceptions
* The Reporter/Listener interface provides default, empty, implementation to preserve backward compatibility
* Stringification of `std::chrono::duration` and `std::chrono::time_point` is now supported
* Needs to be enabled by a per-file compile time configuration option
* Add `pkg-config` support to CMake install command
### Fixes
* Don't use console colour if running in XCode
* Explicit constructor in reporter base class
* Swept out `-Wweak-vtables`, `-Wexit-time-destructors`, `-Wglobal-constructors` warnings
* Compilation for Universal Windows Platform (UWP) is supported
* SEH handling and colorized output are disabled when compiling for UWP
* Implemented a workaround for `std::uncaught_exception` issues in libcxxrt
* These issues caused incorrect section traversals
* The workaround is only partial, user's test can still trigger the issue by using `throw;` to rethrow an exception
* Suppressed C4061 warning under MSVC
### Internal changes
* The development version now uses .cpp files instead of header files containing implementation.
* This makes partial rebuilds much faster during development
* The expression decomposition layer has been rewritten
* The evaluation layer has been rewritten
* New library (TextFlow) is used for formatting text to output
## Older versions
### 1.12.x
#### 1.12.2
##### Fixes
* Fixed missing <cassert> include
#### 1.12.1
##### Fixes
* Fixed deprecation warning in `ScopedMessage::~ScopedMessage`
* All uses of `min` or `max` identifiers are now wrapped in parentheses
* This avoids problems when Windows headers define `min` and `max` macros
#### 1.12.0
##### Fixes
* Fixed compilation for strict C++98 mode (ie not gnu++98) and older compilers (#1103)
* `INFO` messages are included in the `xml` reporter output even without `-s` specified.
### 1.11.x
#### 1.11.0
##### Fixes
* The original expression in `REQUIRE_FALSE( expr )` is now reporter properly as `!( expr )` (#1051)
* Previously the parentheses were missing and `x != y` would be expanded as `!x != x`
* `Approx::Margin` is now inclusive (#952)
* Previously it was meant and documented as inclusive, but the check itself wasn't
* This means that `REQUIRE( 0.25f == Approx( 0.0f ).margin( 0.25f ) )` passes, instead of fails
* `RandomNumberGenerator::result_type` is now unsigned (#1050)
##### Improvements
* `__JETBRAINS_IDE__` macro handling is now CLion version specific (#1017)
* When CLion 2017.3 or newer is detected, `__COUNTER__` is used instead of
* TeamCity reporter now explicitly flushes output stream after each report (#1057)
* On some platforms, output from redirected streams would show up only after the tests finished running
* `ParseAndAddCatchTests` now can add test files as dependency to CMake configuration
* This means you do not have to manually rerun CMake configuration step to detect new tests
### 1.10.x
#### 1.10.0
##### Fixes
* Evaluation layer has been rewritten (backported from Catch 2)
* The new layer is much simpler and fixes some issues (#981)
* Implemented workaround for VS 2017 raw string literal stringification bug (#995)
* Fixed interaction between `[!shouldfail]` and `[!mayfail]` tags and sections
* Previously sections with failing assertions would be marked as failed, not failed-but-ok
##### Improvements
* Added [libidentify](https://github.com/janwilmans/LibIdentify) support
* Added "wait-for-keypress" option
### 1.9.x
#### 1.9.6
##### Improvements
* Catch's runtime overhead has been significantly decreased (#937, #939)
* Added `--list-extra-info` cli option (#934).
* It lists all tests together with extra information, ie filename, line number and description.
#### 1.9.5
##### Fixes
* Truthy expressions are now reconstructed properly, not as booleans (#914)
* Various warnings are no longer erroneously suppressed in test files (files that include `catch.hpp`, but do not define `CATCH_CONFIG_MAIN` or `CATCH_CONFIG_RUNNER`) (#871)
* Catch no longer fails to link when main is compiled as C++, but linked against Objective-C (#855)
* Fixed incorrect gcc version detection when deciding to use `__COUNTER__` (#928)
* Previously any GCC with minor version less than 3 would be incorrectly classified as not supporting `__COUNTER__`.
* Suppressed C4996 warning caused by upcoming updated to MSVC 2017, marking `std::uncaught_exception` as deprecated. (#927)
##### Improvements
* CMake integration script now incorporates debug messages and registers tests in an improved way (#911)
* Various documentation improvements
#### 1.9.4
##### Fixes
* `CATCH_FAIL` macro no longer causes compilation error without variadic macro support
* `INFO` messages are no longer cleared after being reported once
##### Improvements and minor changes
* Catch now uses `wmain` when compiled under Windows and `UNICODE` is defined.
* Note that Catch still officially supports only ASCII
#### 1.9.3
##### Fixes
* Completed the fix for (lack of) uint64_t in earlier Visual Studios
#### 1.9.2
##### Improvements and minor changes
* All of `Approx`'s member functions now accept strong typedefs in C++11 mode (#888)
* Previously `Approx::scale`, `Approx::epsilon`, `Approx::margin` and `Approx::operator()` didn't.
##### Fixes
* POSIX signals are now disabled by default under QNX (#889)
* QNX does not support current enough (2001) POSIX specification
* JUnit no longer counts exceptions as failures if given test case is marked as ok to fail.
* `Catch::Option` should now have its storage properly aligned.
* Catch no longer attempts to define `uint64_t` on windows (#862)
* This was causing trouble when compiled under Cygwin
##### Other
* Catch is now compiled under MSVC 2017 using `std:c++latest` (C++17 mode) in CI
* We now provide cmake script that autoregisters Catch tests into ctest.
* See `contrib` folder.
#### 1.9.1
##### Fixes
* Unexpected exceptions are no longer ignored by default (#885, #887)
#### 1.9.0
##### Improvements and minor changes
* Catch no longer attempts to ensure the exception type passed by user in `REQUIRE_THROWS_AS` is a constant reference.
* It was causing trouble when `REQUIRE_THROWS_AS` was used inside templated functions
* This actually reverts changes made in v1.7.2
* Catch's `Version` struct should no longer be double freed when multiple instances of Catch tests are loaded into single program (#858)
* It is now a static variable in an inline function instead of being an `extern`ed struct.
* Attempt to register invalid tag or tag alias now throws instead of calling `exit()`.
* Because this happen before entering main, it still aborts execution
* Further improvements to this are coming
* `CATCH_CONFIG_FAST_COMPILE` now speeds-up compilation of `REQUIRE*` assertions by further ~15%.
* The trade-off is disabling translation of unexpected exceptions into text.
* When Catch is compiled using C++11, `Approx` is now constructible with anything that can be explicitly converted to `double`.
* Captured messages are now printed on unexpected exceptions
##### Fixes:
* Clang's `-Wexit-time-destructors` should be suppressed for Catch's internals
* GCC's `-Wparentheses` is now suppressed for all TU's that include `catch.hpp`.
* This is functionally a revert of changes made in 1.8.0, where we tried using `_Pragma` based suppression. This should have kept the suppression local to Catch's assertions, but bugs in GCC's handling of `_Pragma`s in C++ mode meant that it did not always work.
* You can now tell Catch to use C++11-based check when checking whether a type can be streamed to output.
* This fixes cases when an unstreamable type has streamable private base (#877)
* [Details can be found in documentation](configuration.md#catch_config_cpp11_stream_insertable_check)
##### Other notes:
* We have added VS 2017 to our CI
* Work on Catch 2 should start soon
### 1.8.x
#### 1.8.2
##### Improvements and minor changes
* TAP reporter now behaves as if `-s` was always set
* This should be more consistent with the protocol desired behaviour.
* Compact reporter now obeys `-d yes` argument (#780)
* The format is "XXX.123 s: <section-name>" (3 decimal places are always present).
* Before it did not report the durations at all.
* XML reporter now behaves the same way as Console reporter in regards to `INFO`
* This means it reports `INFO` messages on success, if output on success (`-s`) is enabled.
* Previously it only reported `INFO` messages on failure.
* `CAPTURE(expr)` now stringifies `expr` in the same way assertion macros do (#639)
* Listeners are now finally [documented](event-listeners.md#top).
* Listeners provide a way to hook into events generated by running your tests, including start and end of run, every test case, every section and every assertion.
##### Fixes:
* Catch no longer attempts to reconstruct expression that led to a fatal error (#810)
* This fixes possible signal/SEH loop when processing expressions, where the signal was triggered by expression decomposition.
* Fixed (C4265) missing virtual destructor warning in Matchers (#844)
* `std::string`s are now taken by `const&` everywhere (#842).
* Previously some places were taking them by-value.
* Catch should no longer change errno (#835).
* This was caused by libstdc++ bug that we now work around.
* Catch now provides `FAIL_CHECK( ... )` macro (#765).
* Same as `FAIL( ... )`, but does not abort the test.
* Functions like `fabs`, `tolower`, `memset`, `isalnum` are now used with `std::` qualification (#543).
* Clara no longer assumes first argument (binary name) is always present (#729)
* If it is missing, empty string is used as default.
* Clara no longer reads 1 character past argument string (#830)
* Regression in Objective-C bindings (Matchers) fixed (#854)
##### Other notes:
* We have added VS 2013 and 2015 to our CI
* Catch Classic (1.x.x) now contains its own, forked, version of Clara (the argument parser).
#### 1.8.1
##### Fixes
Cygwin issue with `gettimeofday` - `#define` was not early enough
#### 1.8.0
##### New features/ minor changes
* Matchers have new, simpler (and documented) interface.
* Catch provides string and vector matchers.
* For details see [Matchers documentation](matchers.md#top).
* Changed console reporter test duration reporting format (#322)
* Old format: `Some simple comparisons between doubles completed in 0.000123s`
* New format: `xxx.123s: Some simple comparisons between doubles` _(There will always be exactly 3 decimal places)_
* Added opt-in leak detection under MSVC + Windows (#439)
* Enable it by compiling Catch's main with `CATCH_CONFIG_WINDOWS_CRTDBG`
* Introduced new compile-time flag, `CATCH_CONFIG_FAST_COMPILE`, trading features for compilation speed.
* Moves debug breaks out of tests and into implementation, speeding up test compilation time (~10% on linux).
* _More changes are coming_
* Added [TAP (Test Anything Protocol)](https://testanything.org/) and [Automake](https://www.gnu.org/software/automake/manual/html_node/Log-files-generation-and-test-results-recording.html#Log-files-generation-and-test-results-recording) reporters.
* These are not present in the default single-include header and need to be downloaded from GitHub separately.
* For details see [documentation about integrating with build systems](build-systems.md#top).
* XML reporter now reports filename as part of the `Section` and `TestCase` tags.
* `Approx` now supports an optional margin of absolute error
* It has also received [new documentation](assertions.md#top).
##### Fixes
* Silenced C4312 ("conversion from int to 'ClassName *") warnings in the evaluate layer.
* Fixed C4512 ("assignment operator could not be generated") warnings under VS2013.
* Cygwin compatibility fixes
* Signal handling is no longer compiled by default.
* Usage of `gettimeofday` inside Catch should no longer cause compilation errors.
* Improved `-Wparentheses` suppression for gcc (#674)
* When compiled with gcc 4.8 or newer, the suppression is localized to assertions only
* Otherwise it is suppressed for the whole TU
* Fixed test spec parser issue (with escapes in multiple names)
##### Other
* Various documentation fixes and improvements
### 1.7.x
#### 1.7.2
##### Fixes and minor improvements
Xml:
(technically the first two are breaking changes but are also fixes and arguably break few if any people)
* C-escape control characters instead of XML encoding them (which requires XML 1.1)
* Revert XML output to XML 1.0
* Can provide stylesheet references by extending the XML reporter
* Added description and tags attributes to XML Reporter
* Tags are closed and the stream flushed more eagerly to avoid stdout interpolation
Other:
* `REQUIRE_THROWS_AS` now catches exception by `const&` and reports expected type
* In `SECTION`s the file/ line is now of the `SECTION`. not the `TEST_CASE`
* Added std:: qualification to some functions from C stdlib
* Removed use of RTTI (`dynamic_cast`) that had crept back in
* Silenced a few more warnings in different circumstances
* Travis improvements
#### 1.7.1
##### Fixes:
* Fixed inconsistency in defining `NOMINMAX` and `WIN32_LEAN_AND_MEAN` inside `catch.hpp`.
* Fixed SEH-related compilation error under older MinGW compilers, by making Windows SEH handling opt-in for compilers other than MSVC.
* For specifics, look into the [documentation](configuration.md#top).
* Fixed compilation error under MinGW caused by improper compiler detection.
* Fixed XML reporter sometimes leaving an empty output file when a test ends with signal/structured exception.
* Fixed XML reporter not reporting captured stdout/stderr.
* Fixed possible infinite recursion in Windows SEH.
* Fixed possible compilation error caused by Catch's operator overloads being ambiguous in regards to user-defined templated operators.
#### 1.7.0
##### Features/ Changes:
* Catch now runs significantly faster for passing tests
* Microbenchmark focused on Catch's overhead went from ~3.4s to ~0.7s.
* Real world test using [JSON for Modern C++](https://github.com/nlohmann/json)'s test suite went from ~6m 25s to ~4m 14s.
* Catch can now run specific sections within test cases.
* For now the support is only basic (no wildcards or tags), for details see the [documentation](command-line.md#top).
* Catch now supports SEH on Windows as well as signals on Linux.
* After receiving a signal, Catch reports failing assertion and then passes the signal onto the previous handler.
* Approx can be used to compare values against strong typedefs (available in C++11 mode only).
* Strong typedefs mean types that are explicitly convertible to double.
* CHECK macro no longer stops executing section if an exception happens.
* Certain characters (space, tab, etc) are now pretty printed.
* This means that a `char c = ' '; REQUIRE(c == '\t');` would be printed as `' ' == '\t'`, instead of ` == 9`.
##### Fixes:
* Text formatting no longer attempts to access out-of-bounds characters under certain conditions.
* THROW family of assertions no longer trigger `-Wunused-value` on expressions containing explicit cast.
* Breaking into debugger under OS X works again and no longer required `DEBUG` to be defined.
* Compilation no longer breaks under certain compiler if a lambda is used inside assertion macro.
##### Other:
* Catch's CMakeLists now defines install command.
* Catch's CMakeLists now generates projects with warnings enabled.
### 1.6.x
#### 1.6.1
##### Features/ Changes:
* Catch now supports breaking into debugger on Linux
##### Fixes:
* Generators no longer leak memory (generators are still unsupported in general)
* JUnit reporter now reports UTC timestamps, instead of "tbd"
* `CHECK_THAT` macro is now properly defined as `CATCH_CHECK_THAT` when using `CATCH_` prefixed macros
##### Other:
* Types with overloaded `&&` operator are no longer evaluated twice when used in an assertion macro.
* The use of `__COUNTER__` is suppressed when Catch is parsed by CLion
* This change is not active when compiling a binary
* Approval tests can now be run on Windows
* CMake will now warn if a file is present in the `include` folder but not is not enumerated as part of the project
* Catch now defines `NOMINMAX` and `WIN32_LEAN_AND_MEAN` before including `windows.h`
* This can be disabled if needed, see [documentation](configuration.md#top) for details.
#### 1.6.0
##### Cmake/ projects:
* Moved CMakeLists.txt to root, made it friendlier for CLion and generating XCode and VS projects, and removed the manually maintained XCode and VS projects.
##### Features/ Changes:
* Approx now supports `>=` and `<=`
* Can now use `\` to escape chars in test names on command line
* Standardize C++11 feature toggles
##### Fixes:
* Blue shell colour
* Missing argument to `CATCH_CHECK_THROWS`
* Don't encode extended ASCII in XML
* use `std::shuffle` on more compilers (fixes deprecation warning/error)
* Use `__COUNTER__` more consistently (where available)
##### Other:
* Tweaks and changes to scripts - particularly for Approval test - to make them more portable
## Even Older versions
Release notes were not maintained prior to v1.6.0, but you should be able to work them out from the Git history
---
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