#include "gtest/gtest.h"
#include "FSKModulator.h"
#include <vector>

TEST(FSKModulatorTest, SignalLength) {
    using namespace milstd;

    // Parameters
    FSKModulator modulator(FSKModulator::ShiftType::NarrowShift, 75.0, 8000.0);

    // Input data bits
    std::vector<uint8_t> dataBits = {1, 0, 1, 1, 0};

    // Modulate the data
    std::vector<double> signal = modulator.modulate(dataBits);

    // Calculate expected number of samples
    size_t samplesPerSymbol = static_cast<size_t>(modulator.getSampleRate() * modulator.getSymbolDuration());
    size_t expectedSamples = dataBits.size() * samplesPerSymbol;

    // Verify signal length
    EXPECT_EQ(signal.size(), expectedSamples);
}