light/modules/surface/private/system.fuzz.cpp

154 lines
2.9 KiB
C++

#include <ecs/entity.hpp>
#include <ecs/registry.hpp>
#include <surface/components.hpp>
#include <surface/system.hpp>
#include <test/fuzz.hpp>
#include <test/test.hpp>
namespace lt::surface {
enum class FuzzAction : uint8_t
{
create_entity,
create_surface_component,
destroy_surface_component,
push_request,
push_event,
tick_system,
count,
};
enum class EventType : uint8_t
{
Closed,
Moved,
Resized,
LostFocus,
GainFocus,
};
void create_surface_component(test::FuzzDataProvider &provider, ecs::Registry &registry)
{
const auto length = std::min(provider.consume<uint32_t>().value_or(16), 255u);
const auto title = provider.consume_string(length).value_or("");
const auto resolution = math::uvec2 {
provider.consume<uint32_t>().value_or(32u),
provider.consume<uint32_t>().value_or(64u),
};
const auto visible = provider.consume<bool>().value_or(false);
const auto vsync = provider.consume<bool>().value_or(false);
try
{
auto entity = registry.create_entity();
registry.add<surface::SurfaceComponent>(
entity,
surface::SurfaceComponent::CreateInfo {
.title = std::move(title),
.resolution = resolution,
.vsync = vsync,
.visible = visible,
}
);
}
catch (const std::exception &exp)
{
std::ignore = exp;
}
}
void remove_surface_component(ecs::Registry &registry)
{
const auto view = registry.view<SurfaceComponent>();
if (!view.is_empty())
{
registry.remove<SurfaceComponent>(view[0].first);
}
}
void push_request(ecs::Registry &registry)
{
}
void push_event(ecs::Registry &registry)
{
}
void check_invariants()
{
}
test::FuzzHarness harness = [](const uint8_t *data, size_t size) {
auto provider = test::FuzzDataProvider { data, size };
auto registry = create_ref<ecs::Registry>();
auto system = surface::System { registry };
while (auto action = provider.consume<uint8_t>())
{
if (*action > std::to_underlying(FuzzAction::count))
{
*action = *action % std::to_underlying(FuzzAction::count);
}
switch (static_cast<FuzzAction>(action.value()))
{
case FuzzAction::create_entity:
{
const auto length = std::min(provider.consume<uint32_t>().value_or(16), 255u);
registry->create_entity();
break;
}
case FuzzAction::create_surface_component:
{
create_surface_component(provider, *registry);
break;
}
case FuzzAction::destroy_surface_component:
{
remove_surface_component(*registry);
break;
}
case FuzzAction::push_event:
{
auto view = registry->view<SurfaceComponent>();
if (!view.is_empty())
{
for (auto &[entity, component] : view)
{
provider.consume<uint8_t>().value_or(0);
// @TODO(Light): push some event
}
}
break;
}
case FuzzAction::push_request:
{
break;
}
case FuzzAction::count:
case FuzzAction::tick_system:
{
system.tick();
break;
}
}
check_invariants();
}
return 0;
};
} // namespace lt::surface