# -*- coding: utf-8 -*-

"""This test unit checks node attributes that are persistent (AttributeSet)."""

from __future__ import print_function
import sys
from distutils.version import LooseVersion

import numpy
from numpy.testing import assert_array_equal, assert_almost_equal

import tables
from tables import (IsDescription, Int32Atom, StringCol, IntCol, Int16Col,
                    FloatCol, Float32Col)
from tables.exceptions import DataTypeWarning
from tables.parameters import NODE_CACHE_SLOTS
from tables.tests import common
from tables.tests.common import unittest
from tables.tests.common import PyTablesTestCase as TestCase


class Record(IsDescription):
    var1 = StringCol(itemsize=4)  # 4-character String
    var2 = IntCol()               # integer
    var3 = Int16Col()             # short integer
    var4 = FloatCol()             # double (double-precision)
    var5 = Float32Col()           # float  (single-precision)


class CreateTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(CreateTestCase, self).setUp()
        self.root = self.h5file.root

        # Create a table object
        self.table = self.h5file.create_table(self.root, 'atable',
                                              Record, "Table title")
        # Create an array object
        self.array = self.h5file.create_array(self.root, 'anarray',
                                              [1], "Array title")
        # Create a group object
        self.group = self.h5file.create_group(self.root, 'agroup',
                                              "Group title")

    def test01_setAttributes(self):
        """Checking setting large string attributes (File methods)"""

        attrlength = 2048
        # Try to put a long string attribute on a group object
        self.h5file.set_node_attr(self.root.agroup, "attr1", "p" * attrlength)

        # Now, try with a Table object
        self.h5file.set_node_attr(self.root.atable, "attr1", "a" * attrlength)

        # Finally, try with an Array object
        self.h5file.set_node_attr(self.root.anarray, "attr1", "n" * attrlength)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        self.assertEqual(self.h5file.get_node_attr(self.root.agroup, 'attr1'),
                         "p" * attrlength)
        self.assertEqual(self.h5file.get_node_attr(self.root.atable, 'attr1'),
                         "a" * attrlength)
        self.assertEqual(self.h5file.get_node_attr(self.root.anarray, 'attr1'),
                         "n" * attrlength)

    def test02_setAttributes(self):
        """Checking setting large string attributes (Node methods)"""

        attrlength = 2048
        # Try to put a long string attribute on a group object
        self.root.agroup._f_setattr('attr1', "p" * attrlength)
        # Now, try with a Table object
        self.root.atable.set_attr('attr1', "a" * attrlength)

        # Finally, try with an Array object
        self.root.anarray.set_attr('attr1', "n" * attrlength)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        self.assertEqual(self.root.agroup._f_getattr(
            'attr1'), "p" * attrlength)
        self.assertEqual(self.root.atable.get_attr("attr1"), "a" * attrlength)
        self.assertEqual(self.root.anarray.get_attr("attr1"), "n" * attrlength)

    def test03_setAttributes(self):
        """Checking setting large string attributes (AttributeSet methods)"""

        attrlength = 2048
        # Try to put a long string attribute on a group object
        self.group._v_attrs.attr1 = "p" * attrlength
        # Now, try with a Table object
        self.table.attrs.attr1 = "a" * attrlength
        # Finally, try with an Array object
        self.array.attrs.attr1 = "n" * attrlength

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        # This should work even when the node cache is disabled
        self.assertEqual(self.root.agroup._v_attrs.attr1, "p" * attrlength)
        self.assertEqual(self.root.atable.attrs.attr1, "a" * attrlength)
        self.assertEqual(self.root.anarray.attrs.attr1, "n" * attrlength)

    def test04_listAttributes(self):
        """Checking listing attributes."""

        # With a Group object
        self.group._v_attrs.pq = "1"
        self.group._v_attrs.qr = "2"
        self.group._v_attrs.rs = "3"
        if common.verbose:
            print("Attribute list:", self.group._v_attrs._f_list())

        # Now, try with a Table object
        self.table.attrs.a = "1"
        self.table.attrs.c = "2"
        self.table.attrs.b = "3"
        if common.verbose:
            print("Attribute list:", self.table.attrs._f_list())

        # Finally, try with an Array object
        self.array.attrs.k = "1"
        self.array.attrs.j = "2"
        self.array.attrs.i = "3"
        if common.verbose:
            print("Attribute list:", self.array.attrs._f_list())

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        agroup = self.root.agroup
        self.assertEqual(agroup._v_attrs._f_list("user"), ["pq", "qr", "rs"])
        self.assertEqual(agroup._v_attrs._f_list("sys"),
                         ['CLASS', 'TITLE', 'VERSION'])
        self.assertEqual(agroup._v_attrs._f_list("all"),
                         ['CLASS', 'TITLE', 'VERSION', "pq", "qr", "rs"])

        atable = self.root.atable
        self.assertEqual(atable.attrs._f_list(), ["a", "b", "c"])
        self.assertEqual(atable.attrs._f_list("sys"),
                         ['CLASS',
                          'FIELD_0_FILL', 'FIELD_0_NAME',
                          'FIELD_1_FILL', 'FIELD_1_NAME',
                          'FIELD_2_FILL', 'FIELD_2_NAME',
                          'FIELD_3_FILL', 'FIELD_3_NAME',
                          'FIELD_4_FILL', 'FIELD_4_NAME',
                          'NROWS',
                          'TITLE', 'VERSION'])
        self.assertEqual(atable.attrs._f_list("all"),
                         ['CLASS',
                          'FIELD_0_FILL', 'FIELD_0_NAME',
                          'FIELD_1_FILL', 'FIELD_1_NAME',
                          'FIELD_2_FILL', 'FIELD_2_NAME',
                          'FIELD_3_FILL', 'FIELD_3_NAME',
                          'FIELD_4_FILL', 'FIELD_4_NAME',
                          'NROWS',
                          'TITLE', 'VERSION',
                          "a", "b", "c"])

        anarray = self.root.anarray
        self.assertEqual(anarray.attrs._f_list(), ["i", "j", "k"])
        self.assertEqual(
            anarray.attrs._f_list("sys"),
            ['CLASS', 'FLAVOR', 'TITLE', 'VERSION'])
        self.assertEqual(
            anarray.attrs._f_list("all"),
            ['CLASS', 'FLAVOR', 'TITLE', 'VERSION', "i", "j", "k"])

    def test05_removeAttributes(self):
        """Checking removing attributes."""

        # With a Group object
        self.group._v_attrs.pq = "1"
        self.group._v_attrs.qr = "2"
        self.group._v_attrs.rs = "3"
        # delete an attribute
        del self.group._v_attrs.pq

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        agroup = self.root.agroup
        if common.verbose:
            print("Attribute list:", agroup._v_attrs._f_list())
        # Check the local attributes names
        self.assertEqual(agroup._v_attrs._f_list(), ["qr", "rs"])
        if common.verbose:
            print("Attribute list in disk:", agroup._v_attrs._f_list("all"))
        # Check the disk attribute names
        self.assertEqual(agroup._v_attrs._f_list("all"),
                         ['CLASS', 'TITLE', 'VERSION', "qr", "rs"])

        # delete an attribute (__delattr__ method)
        del agroup._v_attrs.qr
        if common.verbose:
            print("Attribute list:", agroup._v_attrs._f_list())
        # Check the local attributes names
        self.assertEqual(agroup._v_attrs._f_list(), ["rs"])
        if common.verbose:
            print("Attribute list in disk:", agroup._v_attrs._f_list())
        # Check the disk attribute names
        self.assertEqual(agroup._v_attrs._f_list("all"),
                         ['CLASS', 'TITLE', 'VERSION', "rs"])

    def test05b_removeAttributes(self):
        """Checking removing attributes (using File.del_node_attr())"""

        # With a Group object
        self.group._v_attrs.pq = "1"
        self.group._v_attrs.qr = "2"
        self.group._v_attrs.rs = "3"
        # delete an attribute
        self.h5file.del_node_attr(self.group, "pq")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        agroup = self.root.agroup
        if common.verbose:
            print("Attribute list:", agroup._v_attrs._f_list())
        # Check the local attributes names
        self.assertEqual(agroup._v_attrs._f_list(), ["qr", "rs"])
        if common.verbose:
            print("Attribute list in disk:", agroup._v_attrs._f_list("all"))
        # Check the disk attribute names
        self.assertEqual(agroup._v_attrs._f_list("all"),
                         ['CLASS', 'TITLE', 'VERSION', "qr", "rs"])

        # delete an attribute (File.del_node_attr method)
        self.h5file.del_node_attr(self.root, "qr", "agroup")
        if common.verbose:
            print("Attribute list:", agroup._v_attrs._f_list())
        # Check the local attributes names
        self.assertEqual(agroup._v_attrs._f_list(), ["rs"])
        if common.verbose:
            print("Attribute list in disk:", agroup._v_attrs._f_list())
        # Check the disk attribute names
        self.assertEqual(agroup._v_attrs._f_list("all"),
                         ['CLASS', 'TITLE', 'VERSION', "rs"])

    def test06_removeAttributes(self):
        """Checking removing system attributes."""

        # remove a system attribute
        if common.verbose:
            print("Before removing CLASS attribute")
            print("System attrs:", self.group._v_attrs._v_attrnamessys)
        del self.group._v_attrs.CLASS
        self.assertEqual(self.group._v_attrs._f_list("sys"),
                         ['TITLE', 'VERSION'])
        if common.verbose:
            print("After removing CLASS attribute")
            print("System attrs:", self.group._v_attrs._v_attrnamessys)

    def test07_renameAttributes(self):
        """Checking renaming attributes."""

        # With a Group object
        self.group._v_attrs.pq = "1"
        self.group._v_attrs.qr = "2"
        self.group._v_attrs.rs = "3"
        # rename an attribute
        self.group._v_attrs._f_rename("pq", "op")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        agroup = self.root.agroup
        if common.verbose:
            print("Attribute list:", agroup._v_attrs._f_list())
        # Check the local attributes names (alphabetically sorted)
        self.assertEqual(agroup._v_attrs._f_list(), ["op", "qr", "rs"])
        if common.verbose:
            print("Attribute list in disk:", agroup._v_attrs._f_list("all"))
        # Check the disk attribute names (not sorted)
        self.assertEqual(agroup._v_attrs._f_list("all"),
                         ['CLASS', 'TITLE', 'VERSION', "op", "qr", "rs"])

    def test08_renameAttributes(self):
        """Checking renaming system attributes."""

        if common.verbose:
            print("Before renaming CLASS attribute")
            print("All attrs:", self.group._v_attrs._v_attrnames)
        # rename a system attribute
        self.group._v_attrs._f_rename("CLASS", "op")
        if common.verbose:
            print("After renaming CLASS attribute")
            print("All attrs:", self.group._v_attrs._v_attrnames)

        # Check the disk attribute names (not sorted)
        agroup = self.root.agroup
        self.assertEqual(agroup._v_attrs._f_list("all"),
                         ['TITLE', 'VERSION', "op"])

    def test09_overwriteAttributes(self):
        """Checking overwriting attributes."""

        # With a Group object
        self.group._v_attrs.pq = "1"
        self.group._v_attrs.qr = "2"
        self.group._v_attrs.rs = "3"
        # overwrite attributes
        self.group._v_attrs.pq = "4"
        self.group._v_attrs.qr = 2
        self.group._v_attrs.rs = [1, 2, 3]

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        agroup = self.root.agroup
        if common.verbose:
            print("Value of Attribute pq:", agroup._v_attrs.pq)
        # Check the local attributes names (alphabetically sorted)
        self.assertEqual(agroup._v_attrs.pq, "4")
        self.assertEqual(agroup._v_attrs.qr, 2)
        self.assertEqual(agroup._v_attrs.rs, [1, 2, 3])
        if common.verbose:
            print("Attribute list in disk:", agroup._v_attrs._f_list("all"))
        # Check the disk attribute names (not sorted)
        self.assertEqual(agroup._v_attrs._f_list("all"),
                         ['CLASS', 'TITLE', 'VERSION', "pq", "qr", "rs"])

    def test10a_copyAttributes(self):
        """Checking copying attributes."""

        # With a Group object
        self.group._v_attrs.pq = "1"
        self.group._v_attrs.qr = "2"
        self.group._v_attrs.rs = "3"
        # copy all attributes from "/agroup" to "/atable"
        self.group._v_attrs._f_copy(self.root.atable)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        atable = self.root.atable
        if common.verbose:
            print("Attribute list:", atable._v_attrs._f_list())
        # Check the local attributes names (alphabetically sorted)
        self.assertEqual(atable._v_attrs._f_list(), ["pq", "qr", "rs"])
        if common.verbose:
            print("Complete attribute list:", atable._v_attrs._f_list("all"))
        # Check the disk attribute names (not sorted)
        self.assertEqual(atable._v_attrs._f_list("all"),
                         ['CLASS',
                          'FIELD_0_FILL', 'FIELD_0_NAME',
                          'FIELD_1_FILL', 'FIELD_1_NAME',
                          'FIELD_2_FILL', 'FIELD_2_NAME',
                          'FIELD_3_FILL', 'FIELD_3_NAME',
                          'FIELD_4_FILL', 'FIELD_4_NAME',
                          'NROWS',
                          'TITLE', 'VERSION',
                          "pq", "qr", "rs"])

    def test10b_copyAttributes(self):
        """Checking copying attributes (copy_node_attrs)"""

        # With a Group object
        self.group._v_attrs.pq = "1"
        self.group._v_attrs.qr = "2"
        self.group._v_attrs.rs = "3"
        # copy all attributes from "/agroup" to "/atable"
        self.h5file.copy_node_attrs(self.group, self.root.atable)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        atable = self.root.atable
        if common.verbose:
            print("Attribute list:", atable._v_attrs._f_list())
        # Check the local attributes names (alphabetically sorted)
        self.assertEqual(atable._v_attrs._f_list(), ["pq", "qr", "rs"])
        if common.verbose:
            print("Complete attribute list:", atable._v_attrs._f_list("all"))
        # Check the disk attribute names (not sorted)
        self.assertEqual(atable._v_attrs._f_list("all"),
                         ['CLASS',
                          'FIELD_0_FILL', 'FIELD_0_NAME',
                          'FIELD_1_FILL', 'FIELD_1_NAME',
                          'FIELD_2_FILL', 'FIELD_2_NAME',
                          'FIELD_3_FILL', 'FIELD_3_NAME',
                          'FIELD_4_FILL', 'FIELD_4_NAME',
                          'NROWS',
                          'TITLE', 'VERSION',
                          "pq", "qr", "rs"])

    def test10c_copyAttributes(self):
        """Checking copying attributes during group copies."""

        # With a Group object
        self.group._v_attrs['CLASS'] = "GROUP2"
        self.group._v_attrs['VERSION'] = "1.3"
        # copy "/agroup" to "/agroup2"
        self.h5file.copy_node(self.group, self.root, "agroup2")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        agroup2 = self.root.agroup2
        if common.verbose:
            print("Complete attribute list:", agroup2._v_attrs._f_list("all"))
        self.assertEqual(agroup2._v_attrs['CLASS'], "GROUP2")
        self.assertEqual(agroup2._v_attrs['VERSION'], "1.3")

    def test10d_copyAttributes(self):
        """Checking copying attributes during leaf copies."""

        # With a Group object
        atable = self.root.atable
        atable._v_attrs['CLASS'] = "TABLE2"
        atable._v_attrs['VERSION'] = "1.3"
        # copy "/agroup" to "/agroup2"
        self.h5file.copy_node(atable, self.root, "atable2")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+', node_cache_slots=self.node_cache_slots)
            self.root = self.h5file.root

        atable2 = self.root.atable2
        if common.verbose:
            print("Complete attribute list:", atable2._v_attrs._f_list("all"))
        self.assertEqual(atable2._v_attrs['CLASS'], "TABLE2")
        self.assertEqual(atable2._v_attrs['VERSION'], "1.3")

    def test11a_getitem(self):
        """Checking the __getitem__ interface."""

        attrs = self.group._v_attrs
        attrs.pq = "1"
        self.assertEqual(attrs['pq'], "1")

    def test11b_setitem(self):
        """Checking the __setitem__ interface."""

        attrs = self.group._v_attrs
        attrs['pq'] = "2"
        self.assertEqual(attrs['pq'], "2")

    def test11c_delitem(self):
        """Checking the __delitem__ interface."""

        attrs = self.group._v_attrs
        attrs.pq = "1"
        del attrs['pq']
        self.assertTrue('pq' not in attrs._f_list())

    def test11d_KeyError(self):
        """Checking that KeyError is raised in __getitem__/__delitem__."""

        attrs = self.group._v_attrs
        self.assertRaises(KeyError, attrs.__getitem__, 'pq')
        self.assertRaises(KeyError, attrs.__delitem__, 'pq')

    def test_2d_non_contiguous(self):
        """Checking setting 2D and non-contiguous NumPy attributes"""

        # Regression for gh-176 numpy.
        # In the views old implementation PyTAbles performa a copy of the
        # array:
        #
        #     value = numpy.array(value)
        #
        # in order to get a contiguous array.
        # Unfortunately array with swapped axis are copyed as they are so
        # thay are stored in to HDF5 attributes without being actually
        # contiguous and ths causes an error whn they are restored.

        data = numpy.array([[0, 1], [2, 3]])

        self.array.attrs['a'] = data
        self.array.attrs['b'] = data.T.copy()
        self.array.attrs['c'] = data.T

        assert_array_equal(self.array.attrs['a'], data)
        assert_array_equal(self.array.attrs['b'], data.T)
        assert_array_equal(self.array.attrs['c'], data.T)  # AssertionError!


class NotCloseCreate(CreateTestCase):
    close = False
    node_cache_slots = NODE_CACHE_SLOTS
    open_kwargs = dict(node_cache_slots=node_cache_slots)


class CloseCreate(CreateTestCase):
    close = True
    node_cache_slots = NODE_CACHE_SLOTS
    open_kwargs = dict(node_cache_slots=node_cache_slots)


class NoCacheNotCloseCreate(CreateTestCase):
    close = False
    node_cache_slots = 0
    open_kwargs = dict(node_cache_slots=node_cache_slots)


class NoCacheCloseCreate(CreateTestCase):
    close = True
    node_cache_slots = 0
    open_kwargs = dict(node_cache_slots=node_cache_slots)


class DictCacheNotCloseCreate(CreateTestCase):
    close = False
    node_cache_slots = -NODE_CACHE_SLOTS
    open_kwargs = dict(node_cache_slots=node_cache_slots)


class DictCacheCloseCreate(CreateTestCase):
    close = True
    node_cache_slots = -NODE_CACHE_SLOTS
    open_kwargs = dict(node_cache_slots=node_cache_slots)


class TypesTestCase(common.TempFileMixin, TestCase):

    def setUp(self):
        super(TypesTestCase, self).setUp()
        self.root = self.h5file.root

        # Create an array object
        self.array = self.h5file.create_array(self.root, 'anarray',
                                              [1], "Array title")
        # Create a group object
        self.group = self.h5file.create_group(self.root, 'agroup',
                                              "Group title")

    def test00a_setBoolAttributes(self):
        """Checking setting Bool attributes (scalar, Python case)"""

        self.array.attrs.pq = True
        self.array.attrs.qr = False
        self.array.attrs.rs = True

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertEqual(self.root.anarray.attrs.pq, True)
        self.assertEqual(self.root.anarray.attrs.qr, False)
        self.assertEqual(self.root.anarray.attrs.rs, True)

    def test00b_setBoolAttributes(self):
        """Checking setting Bool attributes (scalar, NumPy case)"""

        self.array.attrs.pq = numpy.bool_(True)
        self.array.attrs.qr = numpy.bool_(False)
        self.array.attrs.rs = numpy.bool_(True)

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertTrue(isinstance(self.root.anarray.attrs.pq, numpy.bool_))
        self.assertTrue(isinstance(self.root.anarray.attrs.qr, numpy.bool_))
        self.assertTrue(isinstance(self.root.anarray.attrs.rs, numpy.bool_))
        self.assertEqual(self.root.anarray.attrs.pq, True)
        self.assertEqual(self.root.anarray.attrs.qr, False)
        self.assertEqual(self.root.anarray.attrs.rs, True)

    def test00c_setBoolAttributes(self):
        """Checking setting Bool attributes (NumPy, 0-dim case)"""

        self.array.attrs.pq = numpy.array(True)
        self.array.attrs.qr = numpy.array(False)
        self.array.attrs.rs = numpy.array(True)

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertEqual(self.root.anarray.attrs.pq, True)
        self.assertEqual(self.root.anarray.attrs.qr, False)
        self.assertEqual(self.root.anarray.attrs.rs, True)

    def test00d_setBoolAttributes(self):
        """Checking setting Bool attributes (NumPy, multidim case)"""

        self.array.attrs.pq = numpy.array([True])
        self.array.attrs.qr = numpy.array([[False]])
        self.array.attrs.rs = numpy.array([[True, False], [True, False]])

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        assert_array_equal(self.root.anarray.attrs.pq, numpy.array([True]))
        assert_array_equal(self.root.anarray.attrs.qr, numpy.array([[False]]))
        assert_array_equal(self.root.anarray.attrs.rs,
                           numpy.array([[True, False], [True, False]]))

    def test01a_setIntAttributes(self):
        """Checking setting Int attributes (scalar, Python case)"""

        self.array.attrs.pq = 1
        self.array.attrs.qr = 2
        self.array.attrs.rs = 3

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertTrue(isinstance(self.root.anarray.attrs.pq, numpy.int_))
        self.assertTrue(isinstance(self.root.anarray.attrs.qr, numpy.int_))
        self.assertTrue(isinstance(self.root.anarray.attrs.rs, numpy.int_))
        self.assertEqual(self.root.anarray.attrs.pq, 1)
        self.assertEqual(self.root.anarray.attrs.qr, 2)
        self.assertEqual(self.root.anarray.attrs.rs, 3)

    def test01b_setIntAttributes(self):
        """Checking setting Int attributes (scalar, NumPy case)"""

        # 'UInt64' not supported on Win
        checktypes = ['Int8', 'Int16', 'Int32', 'Int64',
                      'UInt8', 'UInt16', 'UInt32']

        for dtype in checktypes:
            setattr(self.array.attrs, dtype, numpy.array(1, dtype=dtype))

        # Check the results
        if common.verbose:
            for dtype in checktypes:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            assert_array_equal(getattr(self.array.attrs, dtype),
                               numpy.array(1, dtype=dtype))

    def test01c_setIntAttributes(self):
        """Checking setting Int attributes (unidimensional NumPy case)"""

        # 'UInt64' not supported on Win
        checktypes = ['Int8', 'Int16', 'Int32', 'Int64',
                      'UInt8', 'UInt16', 'UInt32']

        for dtype in checktypes:
            setattr(self.array.attrs, dtype, numpy.array([1, 2], dtype=dtype))

        # Check the results
        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            if common.verbose:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))
            assert_array_equal(getattr(self.array.attrs, dtype),
                               numpy.array([1, 2], dtype=dtype))

    def test01d_setIntAttributes(self):
        """Checking setting Int attributes (unidimensional, non-contiguous)"""

        # 'UInt64' not supported on Win
        checktypes = ['Int8', 'Int16', 'Int32', 'Int64',
                      'UInt8', 'UInt16', 'UInt32']

        for dtype in checktypes:
            arr = numpy.array([1, 2, 3, 4], dtype=dtype)[::2]
            setattr(self.array.attrs, dtype, arr)

        # Check the results
        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            arr = numpy.array([1, 2, 3, 4], dtype=dtype)[::2]
            if common.verbose:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))
            assert_array_equal(getattr(self.array.attrs, dtype), arr)

    def test01e_setIntAttributes(self):
        """Checking setting Int attributes (bidimensional NumPy case)"""

        # 'UInt64' not supported on Win
        checktypes = ['Int8', 'Int16', 'Int32', 'Int64',
                      'UInt8', 'UInt16', 'UInt32']

        for dtype in checktypes:
            setattr(self.array.attrs, dtype,
                    numpy.array([[1, 2], [2, 3]], dtype=dtype))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        # Check the results
        for dtype in checktypes:
            if common.verbose:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))
            assert_array_equal(getattr(self.array.attrs, dtype),
                               numpy.array([[1, 2], [2, 3]], dtype=dtype))

    def test02a_setFloatAttributes(self):
        """Checking setting Float (double) attributes."""

        # Set some attrs
        self.array.attrs.pq = 1.0
        self.array.attrs.qr = 2.0
        self.array.attrs.rs = 3.0

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertTrue(isinstance(self.root.anarray.attrs.pq, numpy.float_))
        self.assertTrue(isinstance(self.root.anarray.attrs.qr, numpy.float_))
        self.assertTrue(isinstance(self.root.anarray.attrs.rs, numpy.float_))
        self.assertTrue(self.root.anarray.attrs.pq, 1.0)
        self.assertTrue(self.root.anarray.attrs.qr, 2.0)
        self.assertTrue(self.root.anarray.attrs.rs, 3.0)

    def test02b_setFloatAttributes(self):
        """Checking setting Float attributes (scalar, NumPy case)"""

        checktypes = ['Float32', 'Float64']

        for dtype in checktypes:
            setattr(self.array.attrs, dtype,
                    numpy.array(1.1, dtype=dtype))

        # Check the results
        if common.verbose:
            for dtype in checktypes:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            # assert getattr(self.array.attrs, dtype) == 1.1
            # In order to make Float32 tests pass. This is legal, not a trick.
            assert_almost_equal(getattr(self.array.attrs, dtype), 1.1)

    def test02c_setFloatAttributes(self):
        """Checking setting Float attributes (unidimensional NumPy case)"""

        checktypes = ['Float32', 'Float64']

        for dtype in checktypes:
            setattr(self.array.attrs, dtype,
                    numpy.array([1.1, 2.1], dtype=dtype))

        # Check the results
        if common.verbose:
            for dtype in checktypes:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            assert_array_equal(getattr(self.array.attrs, dtype),
                               numpy.array([1.1, 2.1], dtype=dtype))

    def test02d_setFloatAttributes(self):
        """Checking setting Float attributes (unidimensional,
        non-contiguous)"""

        checktypes = ['Float32', 'Float64']

        for dtype in checktypes:
            arr = numpy.array([1.1, 2.1, 3.1, 4.1], dtype=dtype)[1::2]
            setattr(self.array.attrs, dtype, arr)

        # Check the results
        if common.verbose:
            for dtype in checktypes:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            arr = numpy.array([1.1, 2.1, 3.1, 4.1], dtype=dtype)[1::2]
            assert_array_equal(getattr(self.array.attrs, dtype), arr)

    def test02e_setFloatAttributes(self):
        """Checking setting Int attributes (bidimensional NumPy case)"""

        checktypes = ['Float32', 'Float64']

        for dtype in checktypes:
            setattr(self.array.attrs, dtype,
                    numpy.array([[1.1, 2.1], [2.1, 3.1]], dtype=dtype))

        # Check the results
        if common.verbose:
            for dtype in checktypes:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            assert_array_equal(
                getattr(self.array.attrs, dtype),
                numpy.array([[1.1, 2.1], [2.1, 3.1]], dtype=dtype))

    def test03_setObjectAttributes(self):
        """Checking setting Object attributes."""

        # Set some attrs
        self.array.attrs.pq = [1.0, 2]
        self.array.attrs.qr = (1, 2)
        self.array.attrs.rs = {"ddf": 32.1, "dsd": 1}

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertEqual(self.root.anarray.attrs.pq, [1.0, 2])
        self.assertEqual(self.root.anarray.attrs.qr, (1, 2))
        self.assertEqual(self.root.anarray.attrs.rs, {"ddf": 32.1, "dsd": 1})

    def test04a_setStringAttributes(self):
        """Checking setting string attributes (scalar case)"""

        self.array.attrs.pq = 'foo'
        self.array.attrs.qr = 'bar'
        self.array.attrs.rs = 'baz'

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertTrue(isinstance(self.root.anarray.attrs.pq, numpy.str_))
        self.assertTrue(isinstance(self.root.anarray.attrs.qr, numpy.str_))
        self.assertTrue(isinstance(self.root.anarray.attrs.rs, numpy.str_))
        self.assertEqual(self.root.anarray.attrs.pq, 'foo')
        self.assertEqual(self.root.anarray.attrs.qr, 'bar')
        self.assertEqual(self.root.anarray.attrs.rs, 'baz')

    def test04b_setStringAttributes(self):
        """Checking setting string attributes (unidimensional 1-elem case)"""

        self.array.attrs.pq = numpy.array(['foo'])

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        assert_array_equal(self.root.anarray.attrs.pq, numpy.array(['foo']))

    def test04c_setStringAttributes(self):
        """Checking setting string attributes (empty unidimensional
        1-elem case)"""

        self.array.attrs.pq = numpy.array([''])

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray
            if common.verbose:
                print("pq -->", self.array.attrs.pq)

        assert_array_equal(self.root.anarray.attrs.pq,
                           numpy.array(['']))

    def test04d_setStringAttributes(self):
        """Checking setting string attributes (unidimensional 2-elem case)"""

        self.array.attrs.pq = numpy.array(['foo', 'bar3'])

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        assert_array_equal(self.root.anarray.attrs.pq,
                           numpy.array(['foo', 'bar3']))

    def test04e_setStringAttributes(self):
        """Checking setting string attributes (empty unidimensional
        2-elem case)"""

        self.array.attrs.pq = numpy.array(['', ''])

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        assert_array_equal(self.root.anarray.attrs.pq, numpy.array(['', '']))

    def test04f_setStringAttributes(self):
        """Checking setting string attributes (bidimensional 4-elem case)"""

        self.array.attrs.pq = numpy.array([['foo', 'foo2'],
                                           ['foo3', 'foo4']])

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        assert_array_equal(self.root.anarray.attrs.pq,
                           numpy.array([['foo', 'foo2'],
                                        ['foo3', 'foo4']]))

    def test05a_setComplexAttributes(self):
        """Checking setting Complex (python) attributes."""

        # Set some attrs
        self.array.attrs.pq = 1.0 + 2j
        self.array.attrs.qr = 2.0 + 3j
        self.array.attrs.rs = 3.0 + 4j

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertTrue(isinstance(self.root.anarray.attrs.pq, numpy.complex_))
        self.assertTrue(isinstance(self.root.anarray.attrs.qr, numpy.complex_))
        self.assertTrue(isinstance(self.root.anarray.attrs.rs, numpy.complex_))
        self.assertEqual(self.root.anarray.attrs.pq, 1.0 + 2j)
        self.assertEqual(self.root.anarray.attrs.qr, 2.0 + 3j)
        self.assertEqual(self.root.anarray.attrs.rs, 3.0 + 4j)

    def test05b_setComplexAttributes(self):
        """Checking setting Complex attributes (scalar, NumPy case)"""

        checktypes = ['complex64', 'complex128']

        for dtype in checktypes:
            setattr(self.array.attrs, dtype,
                    numpy.array(1.1 + 2j, dtype=dtype))

        # Check the results
        if common.verbose:
            for dtype in checktypes:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            # assert getattr(self.array.attrs, dtype) == 1.1 + 2j
            # In order to make Complex32 tests pass.
            assert_almost_equal(getattr(self.array.attrs, dtype), 1.1 + 2j)

    def test05c_setComplexAttributes(self):
        """Checking setting Complex attributes (unidimensional NumPy case)"""

        checktypes = ['Complex32', 'Complex64']

        for dtype in checktypes:
            setattr(self.array.attrs, dtype,
                    numpy.array([1.1, 2.1], dtype=dtype))

        # Check the results
        if common.verbose:
            for dtype in checktypes:
                print("type, value-->", dtype,
                      getattr(self.array.attrs, dtype))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            assert_array_equal(getattr(self.array.attrs, dtype),
                               numpy.array([1.1, 2.1], dtype=dtype))

    def test05d_setComplexAttributes(self):
        """Checking setting Int attributes (bidimensional NumPy case)"""

        checktypes = ['Complex32', 'Complex64']

        for dtype in checktypes:
            setattr(self.array.attrs, dtype,
                    numpy.array([[1.1, 2.1], [2.1, 3.1]], dtype=dtype))

        # Check the results
        if common.verbose:
            for dtype in checktypes:
                print("type, value-->",
                      dtype, getattr(self.array.attrs, dtype))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        for dtype in checktypes:
            assert_array_equal(
                getattr(self.array.attrs, dtype),
                numpy.array([[1.1, 2.1], [2.1, 3.1]], dtype=dtype))

    def test06a_setUnicodeAttributes(self):
        """Checking setting unicode attributes (scalar case)"""

        self.array.attrs.pq = 'para\u0140lel'
        self.array.attrs.qr = ''                 # check #213 or gh-64
        self.array.attrs.rs = 'baz'

        # Check the results
        if common.verbose:
            if sys.platform != 'win32':
                # It seems that Windows cannot print this
                print("pq -->", repr(self.array.attrs.pq))
                # XXX: try to use repr instead
                # print("pq -->", repr(self.array.attrs.pq))
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertTrue(isinstance(self.array.attrs.pq, numpy.unicode_))
        self.assertTrue(isinstance(self.array.attrs.qr, numpy.unicode_))
        self.assertTrue(isinstance(self.array.attrs.rs, numpy.unicode_))
        self.assertEqual(self.array.attrs.pq, 'para\u0140lel')
        self.assertEqual(self.array.attrs.qr, '')
        self.assertEqual(self.array.attrs.rs, 'baz')

    def test06b_setUnicodeAttributes(self):
        """Checking setting unicode attributes (unidimensional 1-elem case)"""

        self.array.attrs.pq = numpy.array(['para\u0140lel'])

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        assert_array_equal(self.array.attrs.pq,
                           numpy.array(['para\u0140lel']))

    def test06c_setUnicodeAttributes(self):
        """Checking setting unicode attributes (empty unidimensional
        1-elem case)"""

        # The next raises a `TypeError` when unpickled. See:
        # http://projects.scipy.org/numpy/ticket/1037
        # self.array.attrs.pq = numpy.array([u''])
        self.array.attrs.pq = numpy.array([''], dtype="U1")

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray
            if common.verbose:
                print("pq -->", repr(self.array.attrs.pq))

        assert_array_equal(self.array.attrs.pq,
                           numpy.array([''], dtype="U1"))

    def test06d_setUnicodeAttributes(self):
        """Checking setting unicode attributes (unidimensional 2-elem case)"""

        self.array.attrs.pq = numpy.array(['para\u0140lel', 'bar3'])

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        assert_array_equal(self.array.attrs.pq,
                           numpy.array(['para\u0140lel', 'bar3']))

    def test06e_setUnicodeAttributes(self):
        """Checking setting unicode attributes (empty unidimensional
        2-elem case)"""

        self.array.attrs.pq = numpy.array(['', ''], dtype="U1")

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        assert_array_equal(self.array.attrs.pq,
                           numpy.array(['', ''], dtype="U1"))

    def test06f_setUnicodeAttributes(self):
        """Checking setting unicode attributes (bidimensional 4-elem case)"""

        self.array.attrs.pq = numpy.array([['para\u0140lel', 'foo2'],
                                           ['foo3', 'para\u0140lel4']])

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        assert_array_equal(self.array.attrs.pq,
                           numpy.array([['para\u0140lel', 'foo2'],
                                        ['foo3', 'para\u0140lel4']]))

    def test07a_setRecArrayAttributes(self):
        """Checking setting RecArray (NumPy) attributes."""

        dt = numpy.dtype('i4,f8')
        # Set some attrs
        self.array.attrs.pq = numpy.zeros(2, dt)
        self.array.attrs.qr = numpy.ones((2, 2), dt)
        self.array.attrs.rs = numpy.array([(1, 2.)], dt)

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertTrue(isinstance(self.array.attrs.pq, numpy.ndarray))
        self.assertTrue(isinstance(self.array.attrs.qr, numpy.ndarray))
        self.assertTrue(isinstance(self.array.attrs.rs, numpy.ndarray))
        assert_array_equal(self.array.attrs.pq, numpy.zeros(2, dt))
        assert_array_equal(self.array.attrs.qr, numpy.ones((2, 2), dt))
        assert_array_equal(self.array.attrs.rs, numpy.array([(1, 2.)], dt))

    def test07b_setRecArrayAttributes(self):
        """Checking setting nested RecArray (NumPy) attributes."""

        # Build a nested dtype
        dt = numpy.dtype([('f1', [('f1', 'i2'), ('f2', 'f8')])])
        # Set some attrs
        self.array.attrs.pq = numpy.zeros(2, dt)
        self.array.attrs.qr = numpy.ones((2, 2), dt)
        self.array.attrs.rs = numpy.array([((1, 2.),)], dt)

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertTrue(isinstance(self.array.attrs.pq, numpy.ndarray))
        self.assertTrue(isinstance(self.array.attrs.qr, numpy.ndarray))
        self.assertTrue(isinstance(self.array.attrs.rs, numpy.ndarray))
        assert_array_equal(self.array.attrs.pq, numpy.zeros(2, dt))
        assert_array_equal(self.array.attrs.qr, numpy.ones((2, 2), dt))
        assert_array_equal(self.array.attrs.rs, numpy.array([((1, 2),)], dt))

    def test07c_setRecArrayAttributes(self):
        """Checking setting multidim nested RecArray (NumPy) attributes."""

        # Build a nested dtype
        dt = numpy.dtype([('f1', [('f1', 'i2', (2,)), ('f2', 'f8')])])

        # Set some attrs
        self.array.attrs.pq = numpy.zeros(2, dt)
        self.array.attrs.qr = numpy.ones((2, 2), dt)
        self.array.attrs.rs = numpy.array([(([1, 3], 2.),)], dt)

        # Check the results
        if common.verbose:
            print("pq -->", self.array.attrs.pq)
            print("qr -->", self.array.attrs.qr)
            print("rs -->", self.array.attrs.rs)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root
            self.array = self.h5file.root.anarray

        self.assertTrue(isinstance(self.array.attrs.pq, numpy.ndarray))
        self.assertTrue(isinstance(self.array.attrs.qr, numpy.ndarray))
        self.assertTrue(isinstance(self.array.attrs.rs, numpy.ndarray))
        assert_array_equal(self.array.attrs.pq, numpy.zeros(2, dt))
        assert_array_equal(self.array.attrs.qr, numpy.ones((2, 2), dt))
        assert_array_equal(self.array.attrs.rs, numpy.array(
            [(([1, 3], 2),)], dt))


class NotCloseTypesTestCase(TypesTestCase):
    close = 0


class CloseTypesTestCase(TypesTestCase):
    close = 1


class NoSysAttrsTestCase(common.TempFileMixin, TestCase):
    open_kwargs = dict(pytables_sys_attrs=False)

    def setUp(self):
        super(NoSysAttrsTestCase, self).setUp()
        self.root = self.h5file.root

        # Create a table object
        self.table = self.h5file.create_table(self.root, 'atable',
                                              Record, "Table title")
        # Create an array object
        self.array = self.h5file.create_array(self.root, 'anarray',
                                              [1], "Array title")
        # Create a group object
        self.group = self.h5file.create_group(self.root, 'agroup',
                                              "Group title")

    def test00_listAttributes(self):
        """Checking listing attributes (no system attrs version)."""

        # With a Group object
        self.group._v_attrs.pq = "1"
        self.group._v_attrs.qr = "2"
        self.group._v_attrs.rs = "3"
        if common.verbose:
            print("Attribute list:", self.group._v_attrs._f_list())

        # Now, try with a Table object
        self.table.attrs.a = "1"
        self.table.attrs.c = "2"
        self.table.attrs.b = "3"
        if common.verbose:
            print("Attribute list:", self.table.attrs._f_list())

        # Finally, try with an Array object
        self.array.attrs.k = "1"
        self.array.attrs.j = "2"
        self.array.attrs.i = "3"
        if common.verbose:
            print("Attribute list:", self.array.attrs._f_list())

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='r+')
            self.root = self.h5file.root

        agroup = self.root.agroup
        self.assertEqual(agroup._v_attrs._f_list("user"), ["pq", "qr", "rs"])
        self.assertEqual(agroup._v_attrs._f_list("sys"), [])
        self.assertEqual(agroup._v_attrs._f_list("all"), ["pq", "qr", "rs"])

        atable = self.root.atable
        self.assertEqual(atable.attrs._f_list(), ["a", "b", "c"])
        self.assertEqual(atable.attrs._f_list("sys"), [])
        self.assertEqual(atable.attrs._f_list("all"), ["a", "b", "c"])

        anarray = self.root.anarray
        self.assertEqual(anarray.attrs._f_list(), ["i", "j", "k"])
        self.assertEqual(anarray.attrs._f_list("sys"), [])
        self.assertEqual(anarray.attrs._f_list("all"), ["i", "j", "k"])


class NoSysAttrsNotClose(NoSysAttrsTestCase):
    close = False


class NoSysAttrsClose(NoSysAttrsTestCase):
    close = True


class CompatibilityTestCase(common.TestFileMixin, TestCase):
    h5fname = TestCase._testFilename('issue_368.h5')

    @unittest.skipIf(LooseVersion(numpy.__version__) < '1.9.0',
                     'requires numpy >= 1.9')
    def test_pickled_unicode_attrs(self):
        # See also gh-368 and https://github.com/numpy/numpy/issues/4879.
        #
        # This is a compatibility test. In PyTables < 3.0 unicode
        # attributes were stored as pickld unicode stings.
        # In PyTables >= 3.0 unicode strings are stored as encoded utf-8
        # strings (the utf-8 marker is set at HDF5 level).
        #
        # In any case PyTables (>= 3.0) should be able to handle correctly
        # also data files genetated with older versions of PyTables.
        # Unfortunately a bug in numpy < 1.9
        # (https://github.com/numpy/numpy/issues/4879) makes it impossible
        # unpickle numpy arrays with dtype "U" resulting in an incorrect
        # behaviour of PyTables.

        self.assertEqual(
            self.h5file.get_node_attr('/', 'py2_pickled_unicode'), 'abc')


class SegFaultPythonTestCase(common.TempFileMixin, TestCase):

    def test00_segfault(self):
        """Checking workaround for Python unpickle problem (see #253)."""

        self.h5file.root._v_attrs.trouble1 = "0"
        self.assertEqual(self.h5file.root._v_attrs.trouble1, "0")
        self.h5file.root._v_attrs.trouble2 = "0."
        self.assertEqual(self.h5file.root._v_attrs.trouble2, "0.")
        # Problem happens after reopening
        self._reopen()
        self.assertEqual(self.h5file.root._v_attrs.trouble1, "0")
        self.assertEqual(self.h5file.root._v_attrs.trouble2, "0.")
        if common.verbose:
            print("Great! '0' and '0.' values can be safely retrieved.")


class EmbeddedNullsTestCase(common.TempFileMixin, TestCase):
    # See laso gh-371 (https://github.com/PyTables/PyTables/issues/371)

    def test_unicode(self):
        value = "string with a null byte \x00 in it"

        self.h5file.root._v_attrs.name = value
        self.assertEqual(self.h5file.root._v_attrs.name, value)

        self._reopen()

        self.assertEqual(self.h5file.root._v_attrs.name, value)

    def test_bytes(self):
        value = b"string with a null byte \x00 in it"

        self.h5file.root._v_attrs.name = value
        self.assertEqual(self.h5file.root._v_attrs.name, value)

        self._reopen()

        self.assertEqual(self.h5file.root._v_attrs.name, value)


class VlenStrAttrTestCase(TestCase):
    def setUp(self):
        super(VlenStrAttrTestCase, self).setUp()
        self.h5fname = self._testFilename('vlstr_attr.h5')
        self.h5file = tables.open_file(self.h5fname)

    def tearDown(self):
        self.h5file.close()
        super(VlenStrAttrTestCase, self).tearDown()

    def test01_vlen_str_scalar(self):
        """Checking file with variable length string attributes."""

        attr = "vlen_str_scalar"
        self.assertEqual(
            self.h5file.get_node_attr("/", attr), attr.encode('ascii'))

    def test02_vlen_str_array(self):
        """Checking file with variable length string attributes (1d)."""

        attr = "vlen_str_array"
        v = self.h5file.get_node_attr('/', attr)
        self.assertEqual(v.ndim, 1)
        for idx, item in enumerate(v):
            value = "%s_%d" % (attr, idx)
            self.assertEqual(item, value.encode('ascii'))

    def test03_vlen_str_matrix(self):
        """Checking file with variable length string attributes (2d)."""

        attr = "vlen_str_matrix"
        m = self.h5file.get_node_attr('/', attr)
        self.assertEqual(m.ndim, 2)
        for row, rowdata in enumerate(m):
            for col, item in enumerate(rowdata):
                value = "%s_%d%d" % (attr, row, col)
                self.assertEqual(item, value.encode('ascii'))


class UnsupportedAttrTypeTestCase(common.TestFileMixin, TestCase):
    h5fname = TestCase._testFilename('attr-u16.h5')

    def test00_unsupportedType(self):
        """Checking file with unsupported type."""

        self.assertWarns(DataTypeWarning, repr, self.h5file)


# Test for specific system attributes
class SpecificAttrsTestCase(common.TempFileMixin, TestCase):

    def test00_earray(self):
        """Testing EArray specific attrs (create)."""

        ea = self.h5file.create_earray('/', 'ea', Int32Atom(), (2, 0, 4))
        if common.verbose:
            print("EXTDIM-->", ea.attrs.EXTDIM)
        self.assertEqual(ea.attrs.EXTDIM, 1)

    def test01_earray(self):
        """Testing EArray specific attrs (open)."""

        ea = self.h5file.create_earray('/', 'ea', Int32Atom(), (0, 1, 4))
        self._reopen('r')
        ea = self.h5file.root.ea
        if common.verbose:
            print("EXTDIM-->", ea.attrs.EXTDIM)
        self.assertEqual(ea.attrs.EXTDIM, 0)

    @unittest.skipIf(sys.version_info >= (3,), 'requires Python 2')
    def test02_unicode_title(self):
        # see gh-370 and gh-374
        title = 'Elevation \N{MINUS SIGN}200m'
        self.h5file.root._v_title = title
        self.assertEqual(self.h5file.root._v_title, title)

    @unittest.skipIf(sys.version_info >= (3,), 'requires Python 2')
    def test03_unicode_title_reopen(self):
        # see gh-370 and gh-374
        title = 'Elevation \N{MINUS SIGN}200m'
        self.h5file.root._v_title = title
        self._reopen()
        self.assertEqual(self.h5file.root._v_title, title)


def suite():
    theSuite = unittest.TestSuite()
    niter = 1

    for i in range(niter):
        theSuite.addTest(unittest.makeSuite(NotCloseCreate))
        theSuite.addTest(unittest.makeSuite(CloseCreate))
        theSuite.addTest(unittest.makeSuite(NoCacheNotCloseCreate))
        theSuite.addTest(unittest.makeSuite(NoCacheCloseCreate))
        theSuite.addTest(unittest.makeSuite(DictCacheNotCloseCreate))
        theSuite.addTest(unittest.makeSuite(DictCacheCloseCreate))
        theSuite.addTest(unittest.makeSuite(NotCloseTypesTestCase))
        theSuite.addTest(unittest.makeSuite(CloseTypesTestCase))
        theSuite.addTest(unittest.makeSuite(NoSysAttrsNotClose))
        theSuite.addTest(unittest.makeSuite(NoSysAttrsClose))
        theSuite.addTest(unittest.makeSuite(CompatibilityTestCase))
        theSuite.addTest(unittest.makeSuite(SegFaultPythonTestCase))
        theSuite.addTest(unittest.makeSuite(EmbeddedNullsTestCase))
        theSuite.addTest(unittest.makeSuite(VlenStrAttrTestCase))
        theSuite.addTest(unittest.makeSuite(UnsupportedAttrTypeTestCase))
        theSuite.addTest(unittest.makeSuite(SpecificAttrsTestCase))

    return theSuite


if __name__ == '__main__':
    common.parse_argv(sys.argv)
    common.print_versions()
    unittest.main(defaultTest='suite')
