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 testProcessVersion25(self):
    """Tests the Process function on a Firefox History database file v 25."""
    plugin = firefox_history.FirefoxHistoryPlugin()
    storage_writer = self._ParseDatabaseFileWithPlugin(
        ['places_new.sqlite'], plugin)

    # The places.sqlite file contains 84 events:
    #     34 page visits.
    #     28 bookmarks
    #     14 bookmark folders
    #     8 annotations

    number_of_events = storage_writer.GetNumberOfAttributeContainers('event')
    self.assertEqual(number_of_events, 84)

    number_of_warnings = storage_writer.GetNumberOfAttributeContainers(
        'extraction_warning')
    self.assertEqual(number_of_warnings, 0)

    number_of_warnings = storage_writer.GetNumberOfAttributeContainers(
        'recovery_warning')
    self.assertEqual(number_of_warnings, 0)

    events = list(storage_writer.GetEvents())

    counter = collections.Counter()
    for event in events:
      event_data = self._GetEventDataOfEvent(storage_writer, event)
      counter[event_data.data_type] += 1

    self.assertEqual(counter['firefox:places:bookmark'], 28)
    self.assertEqual(counter['firefox:places:page_visited'], 34)
    self.assertEqual(counter['firefox:places:bookmark_folder'], 14)
    self.assertEqual(counter['firefox:places:bookmark_annotation'], 8)

    expected_event_values = {
        'data_type': 'firefox:places:page_visited',
        'date_time': '2013-10-30 21:57:11.281942',
        'host': 'code.google.com',
        'url': 'http://code.google.com/p/plaso',
        'visit_count': 1,
        'visit_type': 2}

    self.CheckEventValues(storage_writer, events[10], expected_event_values)