v2.13.4

Author: horenmar

CMakeLists.txt

@@ -14,7 +14,7 @@ if (CMAKE_BINARY_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
 endif()
 
 
-project(Catch2 LANGUAGES CXX VERSION 2.13.3)
+project(Catch2 LANGUAGES CXX VERSION 2.13.4)
 
 # Provide path for scripts
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/CMake")

README.md

@@ -9,7 +9,7 @@
 [![Join the chat in Discord: https://discord.gg/4CWS9zD](https://img.shields.io/badge/Discord-Chat!-brightgreen.svg)](https://discord.gg/4CWS9zD)
 
 
-<a href="https://github.com/catchorg/Catch2/releases/download/v2.13.3/catch.hpp">The latest version of the single header can be downloaded directly using this link</a>
+<a href="https://github.com/catchorg/Catch2/releases/download/v2.13.4/catch.hpp">The latest version of the single header can be downloaded directly using this link</a>
 
 ## Catch2 is released!
 

docs/cmake-integration.md

@@ -177,7 +177,7 @@ the output file name e.g. ".xml".
 ### `ParseAndAddCatchTests.cmake`
 
 ⚠ This script is [deprecated](https://github.com/catchorg/Catch2/pull/2120)
-in Catch X.Y.Z and superseded by the above approach using `catch_discover_tests`.
+in Catch 2.13.4 and superseded by the above approach using `catch_discover_tests`.
 See [#2092](https://github.com/catchorg/Catch2/issues/2092) for details.
 
 `ParseAndAddCatchTests` works by parsing all implementation files

docs/release-notes.md

@@ -2,6 +2,7 @@
 
 # Release notes
 **Contents**<br>
+[2.13.4](#2134)<br>
 [2.13.3](#2133)<br>
 [2.13.2](#2132)<br>
 [2.13.1](#2131)<br>
@@ -44,6 +45,22 @@
 [Even Older versions](#even-older-versions)<br>
 
 
+## 2.13.4
+
+### Improvements
+* Improved the hashing algorithm used for shuffling test cases (#2070)
+  * `TEST_CASE`s that differ only in the last character should be properly shuffled
+  * Note that this means that v2.13.4 gives you a different order of test cases than 2.13.3, even given the same seed.
+
+### Miscellaneous
+* Deprecated `ParseAndAddCatchTests` CMake integration (#2092)
+  * It is impossible to implement it properly for all the different test case variants Catch2 provides, and there are better options provided.
+  * Use `catch_discover_tests` instead, which uses runtime information about available tests.
+* Fixed bug in `catch_discover_tests` that would cause it to fail when used in specific project structures (#2119)
+* Added Bazel build file
+* Added an experimental static library target to CMake
+
+
 ## 2.13.3
 
 ### Fixes

include/catch.hpp

@@ -11,7 +11,7 @@
 
 #define CATCH_VERSION_MAJOR 2
 #define CATCH_VERSION_MINOR 13
-#define CATCH_VERSION_PATCH 3
+#define CATCH_VERSION_PATCH 4
 
 #ifdef __clang__
 #    pragma clang system_header

include/internal/catch_version.cpp

@@ -37,7 +37,7 @@ namespace Catch {
     }
 
     Version const& libraryVersion() {
-        static Version version( 2, 13, 3, "", 0 );
+        static Version version( 2, 13, 4, "", 0 );
         return version;
     }
 

single_include/catch2/catch.hpp

@@ -1,6 +1,6 @@
 /*
- *  Catch v2.13.3
- *  Generated: 2020-10-31 18:20:31.045274
+ *  Catch v2.13.4
+ *  Generated: 2020-12-29 14:48:00.116107
  *  ----------------------------------------------------------
  *  This file has been merged from multiple headers. Please don't edit it directly
  *  Copyright (c) 2020 Two Blue Cubes Ltd. All rights reserved.
@@ -15,7 +15,7 @@
 
 #define CATCH_VERSION_MAJOR 2
 #define CATCH_VERSION_MINOR 13
-#define CATCH_VERSION_PATCH 3
+#define CATCH_VERSION_PATCH 4
 
 #ifdef __clang__
 #    pragma clang system_header
@@ -14126,24 +14126,28 @@ namespace Catch {
 
     namespace {
         struct TestHasher {
-            explicit TestHasher(Catch::SimplePcg32& rng_instance) {
-                basis = rng_instance();
-                basis <<= 32;
-                basis |= rng_instance();
-            }
+            using hash_t = uint64_t;
 
-            uint64_t basis;
+            explicit TestHasher( hash_t hashSuffix ):
+                m_hashSuffix{ hashSuffix } {}
 
-            uint64_t operator()(TestCase const& t) const {
-                // Modified FNV-1a hash
-                static constexpr uint64_t prime = 1099511628211;
-                uint64_t hash = basis;
-                for (const char c : t.name) {
+            uint32_t operator()( TestCase const& t ) const {
+                // FNV-1a hash with multiplication fold.
+                const hash_t prime = 1099511628211u;
+                hash_t hash = 14695981039346656037u;
+                for ( const char c : t.name ) {
                     hash ^= c;
                     hash *= prime;
                 }
-                return hash;
+                hash ^= m_hashSuffix;
+                hash *= prime;
+                const uint32_t low{ static_cast<uint32_t>( hash ) };
+                const uint32_t high{ static_cast<uint32_t>( hash >> 32 ) };
+                return low * high;
             }
+
+        private:
+            hash_t m_hashSuffix;
         };
     } // end unnamed namespace
 
@@ -14161,9 +14165,9 @@ namespace Catch {
 
             case RunTests::InRandomOrder: {
                 seedRng( config );
-                TestHasher h( rng() );
+                TestHasher h{ config.rngSeed() };
 
-                using hashedTest = std::pair<uint64_t, TestCase const*>;
+                using hashedTest = std::pair<TestHasher::hash_t, TestCase const*>;
                 std::vector<hashedTest> indexed_tests;
                 indexed_tests.reserve( unsortedTestCases.size() );
 
@@ -15316,7 +15320,7 @@ namespace Catch {
     }
 
     Version const& libraryVersion() {
-        static Version version( 2, 13, 3, "", 0 );
+        static Version version( 2, 13, 4, "", 0 );
         return version;
     }