// tests/test_finset.cpp

#include "vendor/catch_amalgamated.hpp"
#include "FinSet.h"

// Bring Approx into scope
using Catch::Approx;

TEST_CASE("FinSet basic behavior", "[finset]") {
    FinSet finSet(
        "TestFins",
        3,      // Number of fins
        0.15,   // Root chord (m)
        0.10,   // Tip chord (m)
        0.10,   // Span (m)
        0.05,   // Sweep length (m)
        0.003,  // Thickness (m)
        500.0   // Material density (kg/m3)
    );

    SECTION("FinSet properties are initialized correctly") {
        REQUIRE(finSet.getName() == "TestFins");
    }

    SECTION("Normal force coefficient is positive") {
        double Cn = finSet.calculateNormalForceCoefficient();
        REQUIRE(Cn > 0.0);
    }

    SECTION("Center of pressure is reasonable") {
        double cp = finSet.calculateCenterOfPressure();
        REQUIRE(cp > 0.0);
    }

    SECTION("Drag area calculation is reasonable") {
        double dragArea = finSet.calculateDragArea();
        REQUIRE(dragArea > 0.0);
    }

    SECTION("Mass calculation is reasonable") {
        double mass = finSet.calculateMass();
        REQUIRE(mass > 0.0);
    }
}