Function require_span

tests/unittests/test_audio_chunking.cpp:65–72

};

void require_span(
    const engine::runtime::TimeSpan & span,
    int64_t expected_start,
    int64_t expected_end,
    const std::string & label) {
    engine::test::require_eq(span.start_sample, expected_start, label + " start");
    engine::test::require_eq(span.end_sample, expected_end, label + " end");
}

void require_throws(const std::function<void()> & fn, const std::string & label) {
    bool threw = false;