message: Make sure created resources are deleted at the end of the tests
diff: @@ -53,6 +53,10 @@ class IGFSTest(test.TestCase):
  w.write("")
  # Check that file was created.
  self.assertTrue(gfile.Exists(file_name))
  + # Remove file.
  + gfile.Remove(file_name)
  + # Check that file was removed.
  + self.assertFalse(gfile.Exists(file_name))
  def test_write_read_file(self):
  """Test write/read file.
  @@ -73,6 +77,10 @@ class IGFSTest(test.TestCase):
  self.assertEqual(rows, len(lines))
  for i in range(rows):
  self.assertEqual("This is row\n", lines[i])
  + # Remove file.
  + gfile.Remove(file_name)
  + # Check that file was removed.
  + self.assertFalse(gfile.Exists(file_name))
  def test_delete_recursively(self):
  """Test delete recursively.
  @@ -115,6 +123,12 @@ class IGFSTest(test.TestCase):
  with gfile.Open(dst_file_name, mode="r") as r:
  data = r.read()
  self.assertEqual("42", data)
  + # Remove file.
  + gfile.Remove(src_file_name)
  + gfile.Remove(dst_file_name)
  + # Check that file was removed.
  + self.assertFalse(gfile.Exists(src_file_name))
  + self.assertFalse(gfile.Exists(dst_file_name))
  def test_is_directory(self):
  """Test is directory.
  @@ -167,6 +181,10 @@ class IGFSTest(test.TestCase):
  gfile.MkDir(dir_name)
  # Check that directory was created.
  self.assertTrue(gfile.Exists(dir_name))
  + # Remove directory.
  + gfile.Remove(dir_name)
  + # Check that directory was removed.
  + self.assertFalse(gfile.Exists(dir_name))
  def test_remove(self):
  """Test remove.
  @@ -201,6 +219,10 @@ class IGFSTest(test.TestCase):
  with gfile.Open(dst_file_name, mode="r") as r:
  data = r.read()
  self.assertEqual("42", data)
  + # Remove file.
  + gfile.Remove(dst_file_name)
  + # Check that file was removed.
  + self.assertFalse(gfile.Exists(dst_file_name))
  def test_rename_dir(self):
  """Test rename dir.
  @@ -216,6 +238,10 @@ class IGFSTest(test.TestCase):
  self.assertFalse(gfile.Exists(src_dir_name))
  self.assertTrue(gfile.Exists(dst_dir_name))
  self.assertTrue(gfile.IsDirectory(dst_dir_name))
  + # Remove directory.
  + gfile.Remove(dst_dir_name)
  + # Check that directory was removed.
  + self.assertFalse(gfile.Exists(dst_dir_name))
  class IgniteDatasetTest(test.TestCase):
  