HUD test fakes ​

swofty/fake_hud.hpp provides fake::Hud, a recording core for HUD code, and fake::Clock, a manual clock. They install themselves for the life of the object, so Leaves, TowerLeaves, Frame and your own HUD code run unchanged on the host.

cpp
#include <cassert>
#include <swofty/fake_hud.hpp>
#include <swofty/hud_leaves.hpp>

int main()
{
    swofty::fake::Hud core;                                  // a version 2 core; Hud::v1 is an old one
    swofty::fake::Clock clock;

    swofty::hud::Leaves L{"view_model_data.hud_my_"};
    auto kmh = L.text("kmh");
    auto gear = L.one_hot("g", 9);

    L.set(kmh, "212");
    L.set(gear, 3);
    assert(L.flush() == 10);
    assert(core.text("view_model_data.hud_my_kmh") == "212");
    assert(core.number("view_model_data.hud_my_g3") == 1);

    core.clear();
    L.set(gear, 3);                                          // unchanged
    assert(L.flush() == 0 && core.writes().empty());

    core.rebuild();                                          // the game rebuilt its view model
    assert(core.writes().size() == L.size());                // everything is re-sent

    clock.advance(0.5);                                      // drives Frame cadences and cost
}
  • fake::Hud: applies the real core's rules (prefix, one type per leaf, change detection, groups, a mismatched write refused) and records every write as {path, type, text, number, group, via_v1}. writes(), last(path), text(path), number(path), writes_to(path), refused(), generation().
  • fake::Clock: advance(seconds), set(seconds). It replaces the clock hud::Frame reads.
  • fake::Live: swofty/fake_live.hpp, a fake core live state for swofty::live::*. See Live state. The HUD dial template tests a frame callback over fake::Live and fake::Hud.
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