package gs.timing.v0

import java.util.concurrent.TimeUnit
import munit.*
import scala.concurrent.duration.FiniteDuration

class ElapsedTimeTests extends FunSuite:

  test("should convert to nanoseconds, milliseconds, and seconds") {
    val start   = 0L
    val end     = 1000000L * 2000L // 2 seconds, 2000 millis
    val nanos   = end - start
    val millis  = nanos / 1000000L
    val seconds = millis / 1000L

    val elapsed = ElapsedTime(
      start = start,
      end = end,
      duration = FiniteDuration(nanos, TimeUnit.NANOSECONDS)
    )

    assertEquals(elapsed.toNanoseconds(), nanos)
    assertEquals(elapsed.toMilliseconds(), millis)
    assertEquals(elapsed.toSeconds(), seconds)
  }