catch2/tests/SelfTest/UsageTests/ToStringVector.tests.cpp
Martin Hořeňovský 151dccbd31
Remove catch.hpp
This was an old "include all" header, that we no longer want to be
usable, to make the include differences in new versions explicit.

We will introduce new "include all" headers later, in the form of
`catch_all.hpp`, `catch_matchers_all.hpp` and so on...
2020-03-29 21:32:13 +02:00

87 lines
3.1 KiB
C++

#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 }" );
}