From bc524d70253a4ab2fe40c3ca3e5666e267c0a4d1 Mon Sep 17 00:00:00 2001
From: Lexi Winter <lexi@le-fay.org>
Date: Sun, 29 Jun 2025 19:25:29 +0100
Subject: import catch2 3.8.1

---
 tests/SelfTest/UsageTests/ToStringVector.tests.cpp | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 tests/SelfTest/UsageTests/ToStringVector.tests.cpp

(limited to 'tests/SelfTest/UsageTests/ToStringVector.tests.cpp')

diff --git a/tests/SelfTest/UsageTests/ToStringVector.tests.cpp b/tests/SelfTest/UsageTests/ToStringVector.tests.cpp
new file mode 100644
index 0000000..c042744
--- /dev/null
+++ b/tests/SelfTest/UsageTests/ToStringVector.tests.cpp
@@ -0,0 +1,94 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+
+#include <catch2/catch_test_macros.hpp>
+#include <vector>
+#include <array>
+
+// vector
+TEST_CASE( "vector<int> -> toString", "[toString][vector]" )
+{
+    std::vector<int> vv;
+    REQUIRE( ::Catch::Detail::stringify(vv) == "{  }" );
+    vv.push_back( 42 );
+    REQUIRE( ::Catch::Detail::stringify(vv) == "{ 42 }" );
+    vv.push_back( 250 );
+    REQUIRE( ::Catch::Detail::stringify(vv) == "{ 42, 250 }" );
+}
+
+TEST_CASE( "vector<string> -> toString", "[toString][vector]" )
+{
+    std::vector<std::string> vv;
+    REQUIRE( ::Catch::Detail::stringify(vv) == "{  }" );
+    vv.emplace_back( "hello" );
+    REQUIRE( ::Catch::Detail::stringify(vv) == "{ \"hello\" }" );
+    vv.emplace_back( "world" );
+    REQUIRE( ::Catch::Detail::stringify(vv) == "{ \"hello\", \"world\" }" );
+}
+
+namespace {
+    /* Minimal Allocator */
+    template<typename T>
+    struct minimal_allocator {
+        using value_type = T;
+        using size_type = std::size_t;
+
+        minimal_allocator() = default;
+        template <typename U>
+        minimal_allocator(const minimal_allocator<U>&) {}
+
+
+        T *allocate( size_type n ) {
+            return static_cast<T *>( ::operator new( n * sizeof(T) ) );
+        }
+        void deallocate( T *p, size_type /*n*/ ) {
+            ::operator delete( static_cast<void *>(p) );
+        }
+        template<typename U>
+        bool operator==( const minimal_allocator<U>& ) const { return true; }
+        template<typename U>
+        bool operator!=( const minimal_allocator<U>& ) const { return false; }
+    };
+}
+
+TEST_CASE( "vector<int,allocator> -> toString", "[toString][vector,allocator]" ) {
+    std::vector<int,minimal_allocator<int> > vv;
+    REQUIRE( ::Catch::Detail::stringify(vv) == "{  }" );
+    vv.push_back( 42 );
+    REQUIRE( ::Catch::Detail::stringify(vv) == "{ 42 }" );
+    vv.push_back( 250 );
+    REQUIRE( ::Catch::Detail::stringify(vv) == "{ 42, 250 }" );
+}
+
+TEST_CASE( "vec<vec<string,alloc>> -> toString", "[toString][vector,allocator]" ) {
+    using inner = std::vector<std::string, minimal_allocator<std::string>>;
+    using vector = std::vector<inner>;
+    vector v;
+    REQUIRE( ::Catch::Detail::stringify(v) == "{  }" );
+    v.push_back( inner { "hello" } );
+    v.push_back( inner { "world" } );
+    REQUIRE( ::Catch::Detail::stringify(v) == "{ { \"hello\" }, { \"world\" } }" );
+}
+
+// Based on PR by mat-so: https://github.com/catchorg/Catch2/pull/606/files#diff-43562f40f8c6dcfe2c54557316e0f852
+TEST_CASE( "vector<bool> -> toString", "[toString][containers][vector]" ) {
+    std::vector<bool> bools;
+    REQUIRE( ::Catch::Detail::stringify(bools) == "{  }");
+    bools.push_back(true);
+    REQUIRE( ::Catch::Detail::stringify(bools) == "{ true }");
+    bools.push_back(false);
+    REQUIRE( ::Catch::Detail::stringify(bools) == "{ true, false }");
+}
+TEST_CASE( "array<int, N> -> toString", "[toString][containers][array]" ) {
+    std::array<int, 0> empty;
+    REQUIRE( Catch::Detail::stringify( empty ) == "{  }" );
+    std::array<int, 1> oneValue = {{ 42 }};
+    REQUIRE( Catch::Detail::stringify( oneValue ) == "{ 42 }" );
+    std::array<int, 2> twoValues = {{ 42, 250 }};
+    REQUIRE( Catch::Detail::stringify( twoValues ) == "{ 42, 250 }" );
+}
-- 
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