// E2E tests for chart_demo — Dear ImGui Test Engine.
// Built only when -DFN_BUILD_TESTS=ON. The same main.cpp from chart_demo is
// compiled here with FN_TEST_BUILD defined so its int main() is excluded and
// only render() is reused.

#include "app_base.h"
#include "imgui.h"
#include "imgui_te_engine.h"
#include "imgui_te_context.h"

void render();   // defined in chart_demo/main.cpp

static void register_tests(ImGuiTestEngine* e) {
    ImGuiTest* t = nullptr;

    // Smoke test: the main window appears and is non-empty.
    t = IM_REGISTER_TEST(e, "chart_demo", "smoke_window_visible");
    t->TestFunc = [](ImGuiTestContext* ctx) {
        ctx->SetRef("fn_registry \xe2\x80\x94 Chart Demo");   // em-dash
        IM_CHECK(ctx->WindowInfo("").ID != 0);
    };

    // Cycle through all four tabs. Test engine fails the test if any tab item
    // is not found or cannot be activated — that is our implicit assertion.
    t = IM_REGISTER_TEST(e, "chart_demo", "tabs_cycle_all");
    t->TestFunc = [](ImGuiTestContext* ctx) {
        ctx->SetRef("fn_registry \xe2\x80\x94 Chart Demo");
        ctx->ItemClick("##charts/Line Plot");
        ctx->ItemClick("##charts/Scatter Plot");
        ctx->ItemClick("##charts/Bar Chart");
        ctx->ItemClick("##charts/Heatmap");
    };
}

int main() {
    fn::AppConfig cfg{};
    cfg.title  = "chart_demo_tests";
    cfg.width  = 1280;
    cfg.height = 800;
    return fn::run_app_test(cfg, render, register_tests);
}