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53864dee7b
MSVC's `std::vector` requires its allocator to have copy constructor from the same allocator kind, but templated over different type.
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
#include "catch.hpp"
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#include <vector>
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// vedctor
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TEST_CASE( "vector<int> -> toString", "[toString][vector]" )
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{
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std::vector<int> vv;
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REQUIRE( Catch::toString(vv) == "{ }" );
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vv.push_back( 42 );
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REQUIRE( Catch::toString(vv) == "{ 42 }" );
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vv.push_back( 250 );
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REQUIRE( Catch::toString(vv) == "{ 42, 250 }" );
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}
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TEST_CASE( "vector<string> -> toString", "[toString][vector]" )
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{
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std::vector<std::string> vv;
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REQUIRE( Catch::toString(vv) == "{ }" );
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vv.push_back( "hello" );
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REQUIRE( Catch::toString(vv) == "{ \"hello\" }" );
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vv.push_back( "world" );
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REQUIRE( Catch::toString(vv) == "{ \"hello\", \"world\" }" );
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}
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namespace {
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/* Minimal Allocator */
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template<typename T>
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struct minimal_allocator {
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using value_type = T;
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using size_type = std::size_t;
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minimal_allocator() = default;
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template <typename U>
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minimal_allocator(const minimal_allocator<U>&) {}
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T *allocate( size_type n ) {
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return static_cast<T *>( ::operator new( n * sizeof(T) ) );
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}
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void deallocate( T *p, size_type /*n*/ ) {
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::operator delete( static_cast<void *>(p) );
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}
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template<typename U>
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bool operator==( const minimal_allocator<U>& ) const { return true; }
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template<typename U>
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bool operator!=( const minimal_allocator<U>& ) const { return false; }
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};
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}
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TEST_CASE( "vector<int,allocator> -> toString", "[toString][vector,allocator][c++11][.]" ) {
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std::vector<int,minimal_allocator<int> > vv;
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REQUIRE( Catch::toString(vv) == "{ }" );
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vv.push_back( 42 );
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REQUIRE( Catch::toString(vv) == "{ 42 }" );
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vv.push_back( 250 );
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REQUIRE( Catch::toString(vv) == "{ 42, 250 }" );
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}
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TEST_CASE( "vec<vec<string,alloc>> -> toString", "[toString][vector,allocator][c++11][.]" ) {
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using inner = std::vector<std::string, minimal_allocator<std::string>>;
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using vector = std::vector<inner>;
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vector v;
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REQUIRE( Catch::toString(v) == "{ }" );
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v.push_back( inner { "hello" } );
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v.push_back( inner { "world" } );
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REQUIRE( Catch::toString(v) == "{ { \"hello\" }, { \"world\" } }" );
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}
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