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This commit is contained in:
Niels 2016-08-21 21:48:15 +02:00
parent 585a39a235
commit aa7f5ad8b1
1 changed files with 61 additions and 32 deletions
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93
test/src/unit-allocator.cpp
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@ -63,7 +63,9 @@ TEST_CASE("bad_alloc")
}
}
bool next_allocation_fails = false;
bool next_construct_fails = false;
bool next_destroy_fails = false;
bool next_deallocate_fails = false;
template<class T>
struct my_allocator : std::allocator<T>
@ -71,8 +73,9 @@ struct my_allocator : std::allocator<T>
template<class... Args>
void construct(T* p, Args&& ... args)
{
if (next_allocation_fails)
if (next_construct_fails)
{
next_construct_fails = false;
throw std::bad_alloc();
}
else
@ -80,6 +83,32 @@ struct my_allocator : std::allocator<T>
::new(reinterpret_cast<void*>(p)) T(std::forward<Args>(args)...);
}
}
void deallocate(T* p, std::size_t n)
{
if (next_deallocate_fails)
{
next_deallocate_fails = false;
throw std::bad_alloc();
}
else
{
std::allocator<T>::deallocate(p, n);
}
}
void destroy(T* p)
{
if (next_destroy_fails)
{
next_destroy_fails = false;
throw std::bad_alloc();
}
else
{
p->~T();
}
}
};
TEST_CASE("controlled bad_alloc")
@ -100,63 +129,63 @@ TEST_CASE("controlled bad_alloc")
{
SECTION("object")
{
next_allocation_fails = false;
next_construct_fails = false;
auto t = my_json::value_t::object;
CHECK_NOTHROW(my_json::json_value j(t));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json::json_value j(t), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
SECTION("array")
{
next_allocation_fails = false;
next_construct_fails = false;
auto t = my_json::value_t::array;
CHECK_NOTHROW(my_json::json_value j(t));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json::json_value j(t), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
SECTION("string")
{
next_allocation_fails = false;
next_construct_fails = false;
auto t = my_json::value_t::string;
CHECK_NOTHROW(my_json::json_value j(t));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json::json_value j(t), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
}
SECTION("json_value(const string_t&)")
{
next_allocation_fails = false;
next_construct_fails = false;
my_json::string_t v("foo");
CHECK_NOTHROW(my_json::json_value j(v));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json::json_value j(v), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
/*
SECTION("json_value(const object_t&)")
{
next_allocation_fails = false;
next_construct_fails = false;
my_json::object_t v {{"foo", "bar"}};
CHECK_NOTHROW(my_json::json_value j(v));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json::json_value j(v), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
*/
/*
SECTION("json_value(const array_t&)")
{
next_allocation_fails = false;
next_construct_fails = false;
my_json::array_t v = {"foo", "bar", "baz"};
CHECK_NOTHROW(my_json::json_value j(v));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json::json_value j(v), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
*/
}
@ -165,41 +194,41 @@ TEST_CASE("controlled bad_alloc")
{
SECTION("basic_json(const CompatibleObjectType&)")
{
next_allocation_fails = false;
next_construct_fails = false;
std::map<std::string, std::string> v {{"foo", "bar"}};
CHECK_NOTHROW(my_json j(v));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json j(v), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
SECTION("basic_json(const CompatibleArrayType&)")
{
next_allocation_fails = false;
next_construct_fails = false;
std::vector<std::string> v {"foo", "bar", "baz"};
CHECK_NOTHROW(my_json j(v));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json j(v), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
SECTION("basic_json(const typename string_t::value_type*)")
{
next_allocation_fails = false;
next_construct_fails = false;
CHECK_NOTHROW(my_json v("foo"));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json v("foo"), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
SECTION("basic_json(const typename string_t::value_type*)")
{
next_allocation_fails = false;
next_construct_fails = false;
std::string s("foo");
CHECK_NOTHROW(my_json v(s));
next_allocation_fails = true;
next_construct_fails = true;
CHECK_THROWS_AS(my_json v(s), std::bad_alloc);
next_allocation_fails = false;
next_construct_fails = false;
}
}
}