### Question:
XYGrid implements Serializable { public int getLevel() { return zoom; } XYGrid(final int zoom); static OSHDBBoundingBox getBoundingBox(final CellId cellID); static OSHDBBoundingBox getBoundingBox(final CellId cellID, boolean enlarge); long getId(double longitude, double latitude); long getId(long longitude, long latitude); long getId(OSHDBBoundingBox bbx); double getCellWidth(); OSHDBBoundingBox getCellDimensions(final long cellId); long getEstimatedIdCount(final OSHDBBoundingBox data); int getLevel(); Set<IdRange> bbox2CellIdRanges(OSHDBBoundingBox bbox, boolean enlarge); Set<IdRange> getNeighbours(CellId center);  }### Answer:
@Test public void testGetLevel() { int expResult = 2; int result = two.getLevel(); assertEquals(expResult, result); }