old_contents: 
  from pytest import raises
  from boltons.mathutils import ceil, floor
  
  
  OPTIONS = [1618, 1378, 166, 1521, 2347, 2016, 879, 2123,
             269.3, 1230, 66, 425.2, 250, 2399, 2314, 439,
             247, 208, 379, 1861]
  OPTIONS_SORTED = sorted(OPTIONS)
  OUT_OF_RANGE_LOWER = 60
  OUT_OF_RANGE_UPPER = 2500
  VALID_LOWER = 247
  VALID_UPPER = 2314
  VALID_BETWEEN = 248.5
  
  
  def test_ceil_basic():
      assert ceil(VALID_LOWER, OPTIONS) == VALID_LOWER
      assert ceil(VALID_UPPER, OPTIONS) == VALID_UPPER
      assert ceil(VALID_BETWEEN, OPTIONS) == 250
  
  
  def test_ceil_sorted():
      assert ceil(VALID_LOWER, OPTIONS) == ceil(VALID_LOWER, OPTIONS_SORTED)
      assert ceil(VALID_UPPER, OPTIONS) == ceil(VALID_UPPER, OPTIONS_SORTED)
      assert ceil(VALID_BETWEEN, OPTIONS) == ceil(VALID_BETWEEN, OPTIONS_SORTED)
  
  
  def test_ceil_oor_lower():
      assert min(OPTIONS) == ceil(OUT_OF_RANGE_LOWER, OPTIONS)
  
  
  def test_ceil_oor_upper():
      with raises(ValueError):
          ceil(OUT_OF_RANGE_UPPER, OPTIONS)
  
  
  def test_floor_basic():
      assert floor(VALID_LOWER, OPTIONS) == VALID_LOWER
      assert floor(VALID_UPPER, OPTIONS) == VALID_UPPER
      assert floor(VALID_LOWER, OPTIONS) == 247
  
  
  def test_floor_sorted():
      assert floor(VALID_LOWER, OPTIONS) == floor(VALID_LOWER, OPTIONS_SORTED)
      assert floor(VALID_UPPER, OPTIONS) == floor(VALID_UPPER, OPTIONS_SORTED)
      assert floor(VALID_BETWEEN, OPTIONS) == floor(VALID_BETWEEN, OPTIONS_SORTED)
  
  
  def test_floor_oor_upper():
      assert max(OPTIONS) == floor(OUT_OF_RANGE_UPPER, OPTIONS)
  
  
  def test_floor_oor_lower():
      with raises(ValueError):
          floor(OUT_OF_RANGE_LOWER, OPTIONS)
  
new_contents: 
  from pytest import raises
  from boltons.mathutils import clamp, ceil, floor
  import math
  
  INF, NAN = float('inf'), float('nan')
  
  OPTIONS = [1618, 1378, 166, 1521, 2347, 2016, 879, 2123,
             269.3, 1230, 66, 425.2, 250, 2399, 2314, 439,
             247, 208, 379, 1861]
  OPTIONS_SORTED = sorted(OPTIONS)
  OUT_OF_RANGE_LOWER = 60
  OUT_OF_RANGE_UPPER = 2500
  VALID_LOWER = 247
  VALID_UPPER = 2314
  VALID_BETWEEN = 248.5
  
  def test_clamp_examples():
      """some examples for clamp()"""
      assert 0 == clamp(0, 0, 1) == clamp(-1, 0, 1)
      assert 0 == clamp(-1, lower=0)
      assert 1 == clamp(1, 0, 1) == clamp(5, 0, 1)
      assert 1 == clamp(5, upper=1)
      assert 0.5 == clamp(7, upper=0.5)
      assert 1 == clamp(7.7, upper=1)
  
  def test_clamp_transparent():
      """clamp(x) should equal x beacause both limits are omitted"""
      assert clamp(0) == 0
      assert clamp(1) == 1
      assert clamp(10**100) == 10**100
      assert clamp(INF) == INF
      assert clamp(-INF) == -INF
      assert math.isnan(clamp(NAN))
  
  
  def test_ceil_basic():
      assert ceil(VALID_LOWER, OPTIONS) == VALID_LOWER
      assert ceil(VALID_UPPER, OPTIONS) == VALID_UPPER
      assert ceil(VALID_BETWEEN, OPTIONS) == 250
  
  
  def test_ceil_sorted():
      assert ceil(VALID_LOWER, OPTIONS) == ceil(VALID_LOWER, OPTIONS_SORTED)
      assert ceil(VALID_UPPER, OPTIONS) == ceil(VALID_UPPER, OPTIONS_SORTED)
      assert ceil(VALID_BETWEEN, OPTIONS) == ceil(VALID_BETWEEN, OPTIONS_SORTED)
  
  
  def test_ceil_oor_lower():
      assert min(OPTIONS) == ceil(OUT_OF_RANGE_LOWER, OPTIONS)
  
  
  def test_ceil_oor_upper():
      with raises(ValueError):
          ceil(OUT_OF_RANGE_UPPER, OPTIONS)
  
  
  def test_floor_basic():
      assert floor(VALID_LOWER, OPTIONS) == VALID_LOWER
      assert floor(VALID_UPPER, OPTIONS) == VALID_UPPER
      assert floor(VALID_LOWER, OPTIONS) == 247
  
  
  def test_floor_sorted():
      assert floor(VALID_LOWER, OPTIONS) == floor(VALID_LOWER, OPTIONS_SORTED)
      assert floor(VALID_UPPER, OPTIONS) == floor(VALID_UPPER, OPTIONS_SORTED)
      assert floor(VALID_BETWEEN, OPTIONS) == floor(VALID_BETWEEN, OPTIONS_SORTED)
  
  
  def test_floor_oor_upper():
      assert max(OPTIONS) == floor(OUT_OF_RANGE_UPPER, OPTIONS)
  
  
  def test_floor_oor_lower():
      with raises(ValueError):
          floor(OUT_OF_RANGE_LOWER, OPTIONS)
  
subject: add some basic tests for clamp