def test_modify_view_component(matrix_type, mapping_name):
    adata = ad.AnnData(
        np.zeros((10, 10)),
        **{mapping_name: dict(m=matrix_type(asarray(sparse.random(10, 10))))},
    )
    init_hash = joblib.hash(adata)

    subset = adata[:5, :][:, :5]
    assert subset.is_view
    m = getattr(subset, mapping_name)["m"]
    m[0, 0] = 100
    assert not subset.is_view
    assert getattr(subset, mapping_name)["m"][0, 0] == 100

    assert init_hash == joblib.hash(adata)
def _search_not(self, base, search_filter, candidates=None):
        # Create empty candidates list as we need to use self.directory for
        # each search
        candidates = list()
        this_filter = list()

        index = 0
        search_filter.remove("!")
        for condition in search_filter:
            if not isinstance(condition, list):
                this_filter.append(condition)
            index +=1

        # Remove this_filter items from search_filter list
        for condition in this_filter:
            search_filter.remove(condition)

        try:
            search_filter = list(search_filter[0])
            for sub_filter in search_filter:
                if not isinstance(sub_filter, list):
                    candidates = self.operation.get(sub_filter)(base,
                                                                search_filter,
                                                                candidates)
                else:
                    candidates = self.operation.get(sub_filter[0])(base,
                                                                   sub_filter,
                                                                   candidates)
        except IndexError:
            pass

        candidates = self._invert_results(candidates)

        for item in this_filter:
            if ">=" in item:
                k, v = item.split(">=")
                candidates = Connection._match_less_than(base, k, v,
                                                            self.directory)
            elif "<=" in item:
                k, v = item.split("<=")
                candidates = Connection._match_greater_than(base, k, v,
                                                         self.directory)
            # Emulate AD functionality, same as "="
            elif "~=" in item:
                k, v = item.split("~=")
                candidates = Connection._match_notequal_to(base, k, v,
                                                         self.directory)
            elif "=" in item:
                k, v = item.split("=")
                candidates = Connection._match_notequal_to(base, k, v,
                                                         self.directory)
        return candidates