Function testResetClearsEnvelope

tests/client_comp_test.cpp:451–480

reset() must clear envelope so a new burst starts from silence.

// reset() must clear envelope so a new burst starts from silence.
void testResetClearsEnvelope()
{
    ClientComp comp;
    comp.prepare(kSampleRate);
    comp.setEnabled(true);
    comp.setThresholdDb(-20.0f);
    comp.setRatio(4.0f);
    comp.setKneeDb(0.0f);
    comp.setMakeupDb(0.0f);
    comp.setAttackMs(50.0f);
    comp.setReleaseMs(500.0f);
    comp.setLimiterEnabled(false);

    // Drive envelope up
    auto loud = makeTone(1000.0, static_cast<int>(kSampleRate), 0.5f);
    processBlocks(comp, loud.data(), static_cast<int>(kSampleRate));
    const float grBefore = comp.gainReductionDb();

    comp.reset();

    // After reset, the first block of silence should leave GR at ~0.
    std::vector<float> silence(kBlockSize * 2, 0.0f);
    comp.process(silence.data(), kBlockSize, 2);
    const float grAfter = comp.gainReductionDb();

    report("reset() pulls envelope down",
           grBefore < -2.0f && grAfter > -1.0f,
           "before=" + std::to_string(grBefore) + ", after="
               + std::to_string(grAfter));
}

} // namespace