KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference
How to use shallow method in hypothesis

Best Python code snippet using hypothesis
nest_test.py
Source:nest_test.py
1# Copyright 2017 The TensorFlow Authors. All Rights Reserved.2#3# Licensed under the Apache License, Version 2.0 (the "License");4# you may not use this file except in compliance with the License.5# You may obtain a copy of the License at6#7#     http://www.apache.org/licenses/LICENSE-2.08#9# Unless required by applicable law or agreed to in writing, software10# distributed under the License is distributed on an "AS IS" BASIS,11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.12# See the License for the specific language governing permissions and13# limitations under the License.14# ==============================================================================15"""Tests for utilities working with arbitrarily nested structures."""16from __future__ import absolute_import17from __future__ import division18from __future__ import print_function19import collections20import numpy as np21from tensorflow.python.data.util import nest22from tensorflow.python.framework import constant_op23from tensorflow.python.framework import sparse_tensor24from tensorflow.python.ops import array_ops25from tensorflow.python.ops import math_ops26from tensorflow.python.platform import test27class NestTest(test.TestCase):28  def testFlattenAndPack(self):29    structure = ((3, 4), 5, (6, 7, (9, 10), 8))30    flat = ["a", "b", "c", "d", "e", "f", "g", "h"]31    self.assertEqual(nest.flatten(structure), [3, 4, 5, 6, 7, 9, 10, 8])32    self.assertEqual(33        nest.pack_sequence_as(structure, flat), (("a", "b"), "c",34                                                 ("d", "e", ("f", "g"), "h")))35    point = collections.namedtuple("Point", ["x", "y"])36    structure = (point(x=4, y=2), ((point(x=1, y=0),),))37    flat = [4, 2, 1, 0]38    self.assertEqual(nest.flatten(structure), flat)39    restructured_from_flat = nest.pack_sequence_as(structure, flat)40    self.assertEqual(restructured_from_flat, structure)41    self.assertEqual(restructured_from_flat[0].x, 4)42    self.assertEqual(restructured_from_flat[0].y, 2)43    self.assertEqual(restructured_from_flat[1][0][0].x, 1)44    self.assertEqual(restructured_from_flat[1][0][0].y, 0)45    self.assertEqual([5], nest.flatten(5))46    self.assertEqual([np.array([5])], nest.flatten(np.array([5])))47    self.assertEqual("a", nest.pack_sequence_as(5, ["a"]))48    self.assertEqual(49        np.array([5]), nest.pack_sequence_as("scalar", [np.array([5])]))50    with self.assertRaisesRegexp(ValueError, "Structure is a scalar"):51      nest.pack_sequence_as("scalar", [4, 5])52    with self.assertRaisesRegexp(TypeError, "flat_sequence"):53      nest.pack_sequence_as([4, 5], "bad_sequence")54    with self.assertRaises(ValueError):55      nest.pack_sequence_as([5, 6, [7, 8]], ["a", "b", "c"])56  def testFlattenDictOrder(self):57    """`flatten` orders dicts by key, including OrderedDicts."""58    ordered = collections.OrderedDict([("d", 3), ("b", 1), ("a", 0), ("c", 2)])59    plain = {"d": 3, "b": 1, "a": 0, "c": 2}60    ordered_flat = nest.flatten(ordered)61    plain_flat = nest.flatten(plain)62    self.assertEqual([0, 1, 2, 3], ordered_flat)63    self.assertEqual([0, 1, 2, 3], plain_flat)64  def testPackDictOrder(self):65    """Packing orders dicts by key, including OrderedDicts."""66    ordered = collections.OrderedDict([("d", 0), ("b", 0), ("a", 0), ("c", 0)])67    plain = {"d": 0, "b": 0, "a": 0, "c": 0}68    seq = [0, 1, 2, 3]69    ordered_reconstruction = nest.pack_sequence_as(ordered, seq)70    plain_reconstruction = nest.pack_sequence_as(plain, seq)71    self.assertEqual(72        collections.OrderedDict([("d", 3), ("b", 1), ("a", 0), ("c", 2)]),73        ordered_reconstruction)74    self.assertEqual({"d": 3, "b": 1, "a": 0, "c": 2}, plain_reconstruction)75  def testFlattenAndPackWithDicts(self):76    # A nice messy mix of tuples, lists, dicts, and `OrderedDict`s.77    named_tuple = collections.namedtuple("A", ("b", "c"))78    mess = (79        "z",80        named_tuple(3, 4),81        {82            "c": (83                1,84                collections.OrderedDict([85                    ("b", 3),86                    ("a", 2),87                ]),88            ),89            "b": 590        },91        1792    )93    flattened = nest.flatten(mess)94    self.assertEqual(flattened, ["z", 3, 4, 5, 1, 2, 3, 17])95    structure_of_mess = (96        14,97        named_tuple("a", True),98        {99            "c": (100                0,101                collections.OrderedDict([102                    ("b", 9),103                    ("a", 8),104                ]),105            ),106            "b": 3107        },108        "hi everybody",109    )110    unflattened = nest.pack_sequence_as(structure_of_mess, flattened)111    self.assertEqual(unflattened, mess)112    # Check also that the OrderedDict was created, with the correct key order.113    unflattened_ordered_dict = unflattened[2]["c"][1]114    self.assertIsInstance(unflattened_ordered_dict, collections.OrderedDict)115    self.assertEqual(list(unflattened_ordered_dict.keys()), ["b", "a"])116  def testFlattenSparseValue(self):117    st = sparse_tensor.SparseTensorValue([[0]], [0], [1])118    single_value = st119    list_of_values = [st, st, st]120    nest_of_values = ((st), ((st), (st)))121    dict_of_values = {"foo": st, "bar": st, "baz": st}122    self.assertEqual([st], nest.flatten(single_value))123    self.assertEqual([[st, st, st]], nest.flatten(list_of_values))124    self.assertEqual([st, st, st], nest.flatten(nest_of_values))125    self.assertEqual([st, st, st], nest.flatten(dict_of_values))126  def testIsSequence(self):127    self.assertFalse(nest.is_sequence("1234"))128    self.assertFalse(nest.is_sequence([1, 3, [4, 5]]))129    self.assertTrue(nest.is_sequence(((7, 8), (5, 6))))130    self.assertFalse(nest.is_sequence([]))131    self.assertFalse(nest.is_sequence(set([1, 2])))132    ones = array_ops.ones([2, 3])133    self.assertFalse(nest.is_sequence(ones))134    self.assertFalse(nest.is_sequence(math_ops.tanh(ones)))135    self.assertFalse(nest.is_sequence(np.ones((4, 5))))136    self.assertTrue(nest.is_sequence({"foo": 1, "bar": 2}))137    self.assertFalse(138        nest.is_sequence(sparse_tensor.SparseTensorValue([[0]], [0], [1])))139  def testAssertSameStructure(self):140    structure1 = (((1, 2), 3), 4, (5, 6))141    structure2 = ((("foo1", "foo2"), "foo3"), "foo4", ("foo5", "foo6"))142    structure_different_num_elements = ("spam", "eggs")143    structure_different_nesting = (((1, 2), 3), 4, 5, (6,))144    nest.assert_same_structure(structure1, structure2)145    nest.assert_same_structure("abc", 1.0)146    nest.assert_same_structure("abc", np.array([0, 1]))147    nest.assert_same_structure("abc", constant_op.constant([0, 1]))148    with self.assertRaisesRegexp(ValueError,149                                 "don't have the same number of elements"):150      nest.assert_same_structure(structure1, structure_different_num_elements)151    with self.assertRaisesRegexp(ValueError,152                                 "don't have the same number of elements"):153      nest.assert_same_structure((0, 1), np.array([0, 1]))154    with self.assertRaisesRegexp(ValueError,155                                 "don't have the same number of elements"):156      nest.assert_same_structure(0, (0, 1))157    with self.assertRaisesRegexp(ValueError,158                                 "don't have the same nested structure"):159      nest.assert_same_structure(structure1, structure_different_nesting)160    named_type_0 = collections.namedtuple("named_0", ("a", "b"))161    named_type_1 = collections.namedtuple("named_1", ("a", "b"))162    self.assertRaises(TypeError, nest.assert_same_structure, (0, 1),163                      named_type_0("a", "b"))164    nest.assert_same_structure(named_type_0(3, 4), named_type_0("a", "b"))165    self.assertRaises(TypeError, nest.assert_same_structure,166                      named_type_0(3, 4), named_type_1(3, 4))167    with self.assertRaisesRegexp(ValueError,168                                 "don't have the same nested structure"):169      nest.assert_same_structure(named_type_0(3, 4), named_type_0((3,), 4))170    with self.assertRaisesRegexp(ValueError,171                                 "don't have the same nested structure"):172      nest.assert_same_structure(((3,), 4), (3, (4,)))173    structure1_list = {"a": ((1, 2), 3), "b": 4, "c": (5, 6)}174    with self.assertRaisesRegexp(TypeError,175                                 "don't have the same sequence type"):176      nest.assert_same_structure(structure1, structure1_list)177    nest.assert_same_structure(structure1, structure2, check_types=False)178    nest.assert_same_structure(structure1, structure1_list, check_types=False)179  def testMapStructure(self):180    structure1 = (((1, 2), 3), 4, (5, 6))181    structure2 = (((7, 8), 9), 10, (11, 12))182    structure1_plus1 = nest.map_structure(lambda x: x + 1, structure1)183    nest.assert_same_structure(structure1, structure1_plus1)184    self.assertAllEqual(185        [2, 3, 4, 5, 6, 7],186        nest.flatten(structure1_plus1))187    structure1_plus_structure2 = nest.map_structure(188        lambda x, y: x + y, structure1, structure2)189    self.assertEqual(190        (((1 + 7, 2 + 8), 3 + 9), 4 + 10, (5 + 11, 6 + 12)),191        structure1_plus_structure2)192    self.assertEqual(3, nest.map_structure(lambda x: x - 1, 4))193    self.assertEqual(7, nest.map_structure(lambda x, y: x + y, 3, 4))194    with self.assertRaisesRegexp(TypeError, "callable"):195      nest.map_structure("bad", structure1_plus1)196    with self.assertRaisesRegexp(ValueError, "same nested structure"):197      nest.map_structure(lambda x, y: None, 3, (3,))198    with self.assertRaisesRegexp(TypeError, "same sequence type"):199      nest.map_structure(lambda x, y: None, ((3, 4), 5), {"a": (3, 4), "b": 5})200    with self.assertRaisesRegexp(ValueError, "same nested structure"):201      nest.map_structure(lambda x, y: None, ((3, 4), 5), (3, (4, 5)))202    with self.assertRaisesRegexp(ValueError, "same nested structure"):203      nest.map_structure(lambda x, y: None, ((3, 4), 5), (3, (4, 5)),204                         check_types=False)205    with self.assertRaisesRegexp(ValueError, "Only valid keyword argument"):206      nest.map_structure(lambda x: None, structure1, foo="a")207    with self.assertRaisesRegexp(ValueError, "Only valid keyword argument"):208      nest.map_structure(lambda x: None, structure1, check_types=False, foo="a")209  def testAssertShallowStructure(self):210    inp_ab = ("a", "b")211    inp_abc = ("a", "b", "c")212    expected_message = (213        "The two structures don't have the same sequence length. Input "214        "structure has length 2, while shallow structure has length 3.")215    with self.assertRaisesRegexp(ValueError, expected_message):216      nest.assert_shallow_structure(inp_abc, inp_ab)217    inp_ab1 = ((1, 1), (2, 2))218    inp_ab2 = {"a": (1, 1), "b": (2, 2)}219    expected_message = (220        "The two structures don't have the same sequence type. Input structure "221        "has type <(type|class) 'tuple'>, while shallow structure has type "222        "<(type|class) 'dict'>.")223    with self.assertRaisesRegexp(TypeError, expected_message):224      nest.assert_shallow_structure(inp_ab2, inp_ab1)225    nest.assert_shallow_structure(inp_ab2, inp_ab1, check_types=False)226    inp_ab1 = {"a": (1, 1), "b": {"c": (2, 2)}}227    inp_ab2 = {"a": (1, 1), "b": {"d": (2, 2)}}228    expected_message = (229        r"The two structures don't have the same keys. Input "230        r"structure has keys \['c'\], while shallow structure has "231        r"keys \['d'\].")232    with self.assertRaisesRegexp(ValueError, expected_message):233      nest.assert_shallow_structure(inp_ab2, inp_ab1)234    inp_ab = collections.OrderedDict([("a", 1), ("b", (2, 3))])235    inp_ba = collections.OrderedDict([("b", (2, 3)), ("a", 1)])236    nest.assert_shallow_structure(inp_ab, inp_ba)237  def testFlattenUpTo(self):238    input_tree = (((2, 2), (3, 3)), ((4, 9), (5, 5)))239    shallow_tree = ((True, True), (False, True))240    flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)241    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)242    self.assertEqual(flattened_input_tree, [(2, 2), (3, 3), (4, 9), (5, 5)])243    self.assertEqual(flattened_shallow_tree, [True, True, False, True])244    input_tree = ((("a", 1), (("b", 2), (("c", 3), (("d", 4))))))245    shallow_tree = (("level_1", ("level_2", ("level_3", ("level_4")))))246    input_tree_flattened_as_shallow_tree = nest.flatten_up_to(shallow_tree,247                                                              input_tree)248    input_tree_flattened = nest.flatten(input_tree)249    self.assertEqual(input_tree_flattened_as_shallow_tree,250                     [("a", 1), ("b", 2), ("c", 3), ("d", 4)])251    self.assertEqual(input_tree_flattened, ["a", 1, "b", 2, "c", 3, "d", 4])252    ## Shallow non-list edge-case.253    # Using iterable elements.254    input_tree = ["input_tree"]255    shallow_tree = "shallow_tree"256    flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)257    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)258    self.assertEqual(flattened_input_tree, [input_tree])259    self.assertEqual(flattened_shallow_tree, [shallow_tree])260    input_tree = ("input_tree_0", "input_tree_1")261    shallow_tree = "shallow_tree"262    flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)263    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)264    self.assertEqual(flattened_input_tree, [input_tree])265    self.assertEqual(flattened_shallow_tree, [shallow_tree])266    # Using non-iterable elements.267    input_tree = (0,)268    shallow_tree = 9269    flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)270    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)271    self.assertEqual(flattened_input_tree, [input_tree])272    self.assertEqual(flattened_shallow_tree, [shallow_tree])273    input_tree = (0, 1)274    shallow_tree = 9275    flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)276    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)277    self.assertEqual(flattened_input_tree, [input_tree])278    self.assertEqual(flattened_shallow_tree, [shallow_tree])279    ## Both non-list edge-case.280    # Using iterable elements.281    input_tree = "input_tree"282    shallow_tree = "shallow_tree"283    flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)284    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)285    self.assertEqual(flattened_input_tree, [input_tree])286    self.assertEqual(flattened_shallow_tree, [shallow_tree])287    # Using non-iterable elements.288    input_tree = 0289    shallow_tree = 0290    flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)291    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)292    self.assertEqual(flattened_input_tree, [input_tree])293    self.assertEqual(flattened_shallow_tree, [shallow_tree])294    ## Input non-list edge-case.295    # Using iterable elements.296    input_tree = "input_tree"297    shallow_tree = ("shallow_tree",)298    expected_message = ("If shallow structure is a sequence, input must also "299                        "be a sequence. Input has type: <(type|class) 'str'>.")300    with self.assertRaisesRegexp(TypeError, expected_message):301      flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)302    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)303    self.assertEqual(flattened_shallow_tree, list(shallow_tree))304    input_tree = "input_tree"305    shallow_tree = ("shallow_tree_9", "shallow_tree_8")306    with self.assertRaisesRegexp(TypeError, expected_message):307      flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)308    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)309    self.assertEqual(flattened_shallow_tree, list(shallow_tree))310    # Using non-iterable elements.311    input_tree = 0312    shallow_tree = (9,)313    expected_message = ("If shallow structure is a sequence, input must also "314                        "be a sequence. Input has type: <(type|class) 'int'>.")315    with self.assertRaisesRegexp(TypeError, expected_message):316      flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)317    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)318    self.assertEqual(flattened_shallow_tree, list(shallow_tree))319    input_tree = 0320    shallow_tree = (9, 8)321    with self.assertRaisesRegexp(TypeError, expected_message):322      flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)323    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)324    self.assertEqual(flattened_shallow_tree, list(shallow_tree))325    # Using dict.326    input_tree = {"a": ((2, 2), (3, 3)), "b": ((4, 9), (5, 5))}327    shallow_tree = {"a": (True, True), "b": (False, True)}328    flattened_input_tree = nest.flatten_up_to(shallow_tree, input_tree)329    flattened_shallow_tree = nest.flatten_up_to(shallow_tree, shallow_tree)330    self.assertEqual(flattened_input_tree, [(2, 2), (3, 3), (4, 9), (5, 5)])331    self.assertEqual(flattened_shallow_tree, [True, True, False, True])332  def testMapStructureUpTo(self):333    ab_tuple = collections.namedtuple("ab_tuple", "a, b")334    op_tuple = collections.namedtuple("op_tuple", "add, mul")335    inp_val = ab_tuple(a=2, b=3)336    inp_ops = ab_tuple(a=op_tuple(add=1, mul=2), b=op_tuple(add=2, mul=3))337    out = nest.map_structure_up_to(338        inp_val, lambda val, ops: (val + ops.add) * ops.mul, inp_val, inp_ops)339    self.assertEqual(out.a, 6)340    self.assertEqual(out.b, 15)341    data_list = ((2, 4, 6, 8), ((1, 3, 5, 7, 9), (3, 5, 7)))342    name_list = ("evens", ("odds", "primes"))343    out = nest.map_structure_up_to(344        name_list, lambda name, sec: "first_{}_{}".format(len(sec), name),345        name_list, data_list)346    self.assertEqual(out, ("first_4_evens", ("first_5_odds", "first_3_primes")))347if __name__ == "__main__":...
Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.