def test_view_of_view(matrix_type, subset_func, subset_func2):
    adata = gen_adata((30, 15), X_type=matrix_type)
    adata.raw = adata
    if subset_func is single_subset:
        pytest.xfail("Other subset generating functions have trouble with this")
    var_s1 = subset_func(adata.var_names, min_size=4)
    var_view1 = adata[:, var_s1]
    var_s2 = subset_func2(var_view1.var_names)
    var_view2 = var_view1[:, var_s2]
    assert var_view2._adata_ref is adata
    obs_s1 = subset_func(adata.obs_names, min_size=4)
    obs_view1 = adata[obs_s1, :]
    obs_s2 = subset_func2(obs_view1.obs_names)
    assert adata[obs_s1, :][:, var_s1][obs_s2, :]._adata_ref is adata

    view_of_actual_copy = adata[:, var_s1].copy()[obs_s1, :].copy()[:, var_s2].copy()

    view_of_view_copy = adata[:, var_s1][obs_s1, :][:, var_s2].copy()

    assert_equal(view_of_actual_copy, view_of_view_copy, exact=True)
def GetCompletions_NoSuggestions_Fallback_test( app ):
  # Python completer doesn't raise NO_COMPLETIONS_MESSAGE, so this is a
  # different code path to the Clang completer cases

  # TESTCASE2 (general_fallback/lang_python.py)
  RunTest( app, {
    'description': 'param jedi does not know about (id). query="a_p"',
    'request': {
      'filetype'  : 'python',
      'filepath'  : PathToTestFile( 'general_fallback',
                                    'lang_python.py' ),
      'line_num'  : 28,
      'column_num': 20,
      'force_semantic': False,
    },
    'expect': {
      'response': http.client.OK,
      'data': has_entries( {
        'completions': contains(
          CompletionEntryMatcher( 'a_parameter', '[ID]' ),
          CompletionEntryMatcher( 'another_parameter', '[ID]' ),
        ),
        'errors': empty(),
      } )
    },
  } )