old_contents: import numpy as np
  from numpy.testing import assert_array_equal
  from nose import with_setup
  try:
      from nose.tools import assert_is, assert_is_instance
  except ImportError:
      from landlab.testing.tools import assert_is, assert_is_instance
  from nose.tools import (assert_equal, assert_raises)
  
  from landlab.grid import raster_funcs as rfuncs
  from landlab import RasterModelGrid
  
  
  def test_with_scalars():
      rmg = RasterModelGrid(4, 5)
      id = rfuncs.find_nearest_node(rmg, (0.2, 0.6))
      assert_equal(id, 5)
      assert_equal(id.ndim, 0)
      assert_is_instance(id, np.int64)
  
  
  def test_with_iterable():
      rmg = RasterModelGrid(4, 5)
      id = rfuncs.find_nearest_node(rmg, ([0.2], [0.6]))
      assert_array_equal(id, np.array([5], dtype=int))
      assert_is_instance(id, np.int64)
  
  
  def test_with_ndarray_with_length_0():
      rmg = RasterModelGrid(4, 5)
      id = rfuncs.find_nearest_node(rmg, (np.array(0.2), np.array(0.6)))
      assert_array_equal(id, np.array(5, dtype=int))
      assert_equal(id.ndim, 0)
      assert_is_instance(id, np.int64)
  
  
  def test_with_ndarray():
      rmg = RasterModelGrid(4, 5)
      coords = (np.array([0.1, .2]), np.array([3.4, 2.6]))
      id = rfuncs.find_nearest_node(rmg, coords)
      assert_array_equal(id, np.array([15, 15], dtype=int))
      assert_is_instance(id, np.ndarray)
  
  
  def test_non_unit_spacing():
      rmg = RasterModelGrid(4, 5, dx=2.)
      id = rfuncs.find_nearest_node(rmg, (.9, .2))
      assert_equal(id, 0)
  
  
  def test_beyond_grid():
      rmg = RasterModelGrid(4, 5, dx=2.)
  
      assert_equal(rfuncs.find_nearest_node(rmg, (-.999, .2)), 0)
      assert_raises(ValueError,
                    rfuncs.find_nearest_node, rmg, (-1.001, .2))
  
      assert_equal(rfuncs.find_nearest_node(rmg, (8.999, .2)), 4)
      assert_raises(ValueError,
                    rfuncs.find_nearest_node, rmg, (9.001, .2))
  
      assert_equal(rfuncs.find_nearest_node(rmg, (.2, -.999)), 0)
      assert_raises(ValueError,
                    rfuncs.find_nearest_node, rmg, (.2, -1.001))
  
      assert_equal(rfuncs.find_nearest_node(rmg, (.2, 6.999)), 15)
      assert_raises(ValueError,
                    rfuncs.find_nearest_node, rmg, (.2, 7.001))
  
new_contents: import numpy as np
  from numpy.testing import assert_array_equal
  from nose import with_setup
  try:
      from nose.tools import assert_is, assert_is_instance
  except ImportError:
      from landlab.testing.tools import assert_is, assert_is_instance
  from nose.tools import (assert_equal, assert_raises)
  
  from landlab.grid import raster_funcs as rfuncs
  from landlab import RasterModelGrid
  
  
  def test_with_scalars():
      rmg = RasterModelGrid(4, 5)
      id = rfuncs.find_nearest_node(rmg, (0.2, 0.6))
      assert_equal(id, 5)
      assert_equal(id.ndim, 0)
      assert_is_instance(id, (np.int32, np.int64, int))
  
  
  def test_with_iterable():
      rmg = RasterModelGrid(4, 5)
      id = rfuncs.find_nearest_node(rmg, ([0.2], [0.6]))
      assert_array_equal(id, np.array([5], dtype=int))
      assert_is_instance(id, (np.int32, np.int64, int))
  
  
  def test_with_ndarray_with_length_0():
      rmg = RasterModelGrid(4, 5)
      id = rfuncs.find_nearest_node(rmg, (np.array(0.2), np.array(0.6)))
      assert_array_equal(id, np.array(5, dtype=int))
      assert_equal(id.ndim, 0)
      assert_is_instance(id, (np.int32, np.int64, int))
  
  
  def test_with_ndarray():
      rmg = RasterModelGrid(4, 5)
      coords = (np.array([0.1, .2]), np.array([3.4, 2.6]))
      id = rfuncs.find_nearest_node(rmg, coords)
      assert_array_equal(id, np.array([15, 15], dtype=int))
      assert_is_instance(id, np.ndarray)
  
  
  def test_non_unit_spacing():
      rmg = RasterModelGrid(4, 5, dx=2.)
      id = rfuncs.find_nearest_node(rmg, (.9, .2))
      assert_equal(id, 0)
  
  
  def test_beyond_grid():
      rmg = RasterModelGrid(4, 5, dx=2.)
  
      assert_equal(rfuncs.find_nearest_node(rmg, (-.999, .2)), 0)
      assert_raises(ValueError,
                    rfuncs.find_nearest_node, rmg, (-1.001, .2))
  
      assert_equal(rfuncs.find_nearest_node(rmg, (8.999, .2)), 4)
      assert_raises(ValueError,
                    rfuncs.find_nearest_node, rmg, (9.001, .2))
  
      assert_equal(rfuncs.find_nearest_node(rmg, (.2, -.999)), 0)
      assert_raises(ValueError,
                    rfuncs.find_nearest_node, rmg, (.2, -1.001))
  
      assert_equal(rfuncs.find_nearest_node(rmg, (.2, 6.999)), 15)
      assert_raises(ValueError,
                    rfuncs.find_nearest_node, rmg, (.2, 7.001))
  
subject: Test if ids are some sort of int.