@Test
  public void testNanosToMillis() {
    assertEquals(0, NanoTimer.nanosToMillis(1));
    assertEquals(1, NanoTimer.nanosToMillis(1000000));
  }
Unit tests for NanoTimer.

@since GemFire 7.0
geode-core/src/test/java/org/apache/geode/internal/NanoTimerJUnitTest.java