content: import os
  import sys
  from statsmodels.datasets import get_rdataset, webuse, check_internet
  from numpy.testing import assert_, assert_array_equal, dec
  
  cur_dir = os.path.dirname(os.path.abspath(__file__))
  
  def test_get_rdataset():
      # smoke test
      if sys.version_info[0] >= 3:
          #NOTE: there's no way to test both since the cached files were
          #created with Python 2.x, they're strings, but Python 3 expects
          #bytes and the index file path is hard-coded so both can't live
          #side by side
          pass
          #duncan = get_rdataset("Duncan-py3", "car", cache=cur_dir)
      else:
          duncan = get_rdataset("Duncan", "car", cache=cur_dir)
          assert_(duncan.from_cache)
  
  #internet_available = check_internet()
  #@dec.skipif(not internet_available)
  def t_est_webuse():
      # test copied and adjusted from iolib/tests/test_foreign
      from statsmodels.iolib.tests.results.macrodata import macrodata_result as res2
      #base_gh = "http://github.com/statsmodels/statsmodels/raw/master/statsmodels/datasets/macrodata/"
      base_gh = "http://statsmodels.sourceforge.net/devel/_static/"
      res1 = webuse('macrodata', baseurl=base_gh, as_df=False)
      assert_array_equal(res1 == res2, True)
  
  #@dec.skipif(not internet_available)
  def t_est_webuse_pandas():
      # test copied and adjusted from iolib/tests/test_foreign
      from pandas.util.testing import assert_frame_equal
      from statsmodels.datasets import macrodata
      dta = macrodata.load_pandas().data
      base_gh = "http://github.com/statsmodels/statsmodels/raw/master/statsmodels/datasets/macrodata/"
      res1 = webuse('macrodata', baseurl=base_gh)
      res1 = res1.astype(float)
      assert_frame_equal(res1, dta)
  