### Question:
GMTEDProvider extends AbstractTiffElevationProvider { int getMinLonForTile(double lon) { return (int) (Math.floor((180 + lon) / LON_DEGREE) * LON_DEGREE) - 180; } GMTEDProvider();  GMTEDProvider(String cacheDir); static void main(String[] args); @Override String toString();  }### Answer:
@Test public void testMinLon() { assertEquals(-60, instance.getMinLonForTile(-59.9)); assertEquals(0, instance.getMinLonForTile(0.9)); }