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How to use get_test_function method in Slash

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sit_stand_target_test.py

Source:sit_stand_target_test.py

...3import pandas as pd4from mock import Mock5from libcbm.model.cbm.rule_based.sit import sit_stand_target6from libcbm.model.cbm.rule_based import rule_target7def get_test_function(mock_sit_event_row, mock_state_variables, mock_pools,8                      mock_random_generator,9                      mock_disturbance_production_func=None):10    mock_rule_target = Mock(spec=rule_target)11    mock_inventory = "inventory"12    mock_eligible = "eligible"13    create_target = sit_stand_target.create_sit_event_target_factory(14        rule_target=mock_rule_target,15        sit_event_row=mock_sit_event_row,16        disturbance_production_func=mock_disturbance_production_func,17        random_generator=mock_random_generator18        )19    mock_cbm_vars = SimpleNamespace(20        inventory=mock_inventory,21        pools=mock_pools,22        state=mock_state_variables)23    create_target(24        cbm_vars=mock_cbm_vars,25        eligible=mock_eligible)26    return mock_rule_target27class SITStandTargetTest(unittest.TestCase):28    """Tests for functions that compute CBM rule based disturbance event29    targets based on SIT disturbance event input.30    """31    def test_proportion_sort_proportion_target(self):32        get_test_function(33            mock_sit_event_row={34                "sort_type": "PROPORTION_OF_EVERY_RECORD",35                "target_type": "Proportion",36                "target": 0.8,37                "disturbance_type": "fire"},38            mock_state_variables="mock_state_vars",39            mock_pools="mock_pools",40            mock_random_generator=None41        ).proportion_sort_proportion_target.assert_called_once_with(42            proportion_target=0.8,43            inventory="inventory",44            eligible="eligible")45    def test_proportion_sort_area_target(self):46        get_test_function(47            mock_sit_event_row={48                "sort_type": "PROPORTION_OF_EVERY_RECORD",49                "target_type": "Area",50                "target": 13,51                "disturbance_type": "fire"},52            mock_state_variables="mock_state_vars",53            mock_pools="mock_pools",54            mock_random_generator=None55        ).proportion_area_target.assert_called_once_with(56            area_target_value=13,57            inventory="inventory",58            eligible="eligible",59        )60    def test_merch_total_sort_area_target(self):61        mock_production = SimpleNamespace(62            Total=[3, 3, 3, 3],63            DisturbanceSoftProduction=[1, 1, 1, 1],64            DisturbanceHardProduction=[1, 1, 1, 1],65            DisturbanceDOMProduction=[1, 1, 1, 1])66        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):67            self.assertTrue(disturbance_type_id == 2)68            self.assertTrue(cbm_vars.inventory == "inventory")69            self.assertTrue(cbm_vars.pools == "pools")70            return mock_production71        get_test_function(72            mock_sit_event_row={73                "sort_type": "MERCHCSORT_TOTAL",74                "target_type": "Area",75                "target": 18,76                "disturbance_type_id": 2},77            mock_state_variables="mock_state_vars",78            mock_pools="pools",79            mock_random_generator=None,80            mock_disturbance_production_func=mock_disturbance_production_func81        ).sorted_area_target.assert_called_once_with(82            area_target_value=18,83            sort_value=mock_production.Total,84            inventory="inventory",85            eligible="eligible",86        )87    def test_merch_sw_sort_area_target(self):88        mock_production = SimpleNamespace(89            Total=[3, 3, 3, 3],90            DisturbanceSoftProduction=[1, 1, 1, 1],91            DisturbanceHardProduction=[1, 1, 1, 1],92            DisturbanceDOMProduction=[1, 1, 1, 1])93        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):94            self.assertTrue(disturbance_type_id == 4000)95            self.assertTrue(cbm_vars.inventory == "inventory")96            self.assertTrue(cbm_vars.pools == "pools")97            return mock_production98        # tests that the + operator is used for the correct production fields99        expected_sort_value = \100            mock_production.DisturbanceSoftProduction + \101            mock_production.DisturbanceDOMProduction102        get_test_function(103            mock_sit_event_row={104                "sort_type": "MERCHCSORT_SW",105                "target_type": "Area",106                "target": 18,107                "disturbance_type_id": 4000},108            mock_state_variables="mock_state_vars",109            mock_pools="pools",110            mock_random_generator=None,111            mock_disturbance_production_func=mock_disturbance_production_func112        ).sorted_area_target.assert_called_once_with(113            area_target_value=18,114            sort_value=expected_sort_value,115            inventory="inventory",116            eligible="eligible",117        )118    def test_merch_hw_sort_area_target(self):119        mock_production = SimpleNamespace(120            Total=[3, 3, 3, 3],121            DisturbanceSoftProduction=[1, 1, 1, 1],122            DisturbanceHardProduction=[1, 1, 1, 1],123            DisturbanceDOMProduction=[1, 1, 1, 1])124        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):125            self.assertTrue(disturbance_type_id == 100)126            self.assertTrue(cbm_vars.inventory == "inventory")127            self.assertTrue(cbm_vars.pools == "pools")128            return mock_production129        # tests that the + operator is used for the correct production fields130        expected_sort_value = \131            mock_production.DisturbanceHardProduction + \132            mock_production.DisturbanceDOMProduction133        get_test_function(134            mock_sit_event_row={135                "sort_type": "MERCHCSORT_HW",136                "target_type": "Area",137                "target": 19,138                "disturbance_type_id": 100},139            mock_state_variables="mock_state_vars",140            mock_pools="pools",141            mock_random_generator=None,142            mock_disturbance_production_func=mock_disturbance_production_func143        ).sorted_area_target.assert_called_once_with(144            area_target_value=19,145            sort_value=expected_sort_value,146            inventory="inventory",147            eligible="eligible")148    def test_random_sort_area_target(self):149        mock_pools = pd.DataFrame({"a": [12, 3, 4, 5]})150        def mock_random_gen(n_values):151            return [1] * n_values152        get_test_function(153            mock_sit_event_row={154                "sort_type": "RANDOMSORT",155                "target_type": "Area",156                "target": 11,157                "disturbance_type": "fire"},158            mock_state_variables="mock_state_vars",159            mock_pools=mock_pools,160            mock_random_generator=mock_random_gen161        ).sorted_area_target.assert_called_once_with(162            area_target_value=11,163            sort_value=mock_random_gen(mock_pools.shape[0]),164            inventory="inventory",165            eligible="eligible"166        )167    def test_total_stem_snag_sort_area_target(self):168        get_test_function(169            mock_sit_event_row={170                "sort_type": "TOTALSTEMSNAG",171                "target_type": "Area",172                "target": 50,173                "disturbance_type": "fire"},174            mock_state_variables="mock_state_vars",175            mock_pools=SimpleNamespace(176                SoftwoodStemSnag=[1, 2, 3, 4],177                HardwoodStemSnag=[5, 6, 7, 8]),178            mock_random_generator=None179        ).sorted_area_target.assert_called_once_with(180            area_target_value=50,181            # since it's difficult for mock to test with182            # pd.DataSeries (simple equality won't work)183            # just check that the '+' operater was used.184            sort_value=[1, 2, 3, 4] + [5, 6, 7, 8],185            inventory="inventory",186            eligible="eligible"187        )188    def test_sw_stem_snag_sort_area_target(self):189        get_test_function(190            mock_sit_event_row={191                "sort_type": "SWSTEMSNAG",192                "target_type": "Area",193                "target": 1,194                "disturbance_type": "fire"},195            mock_state_variables="mock_state_vars",196            mock_pools=SimpleNamespace(SoftwoodStemSnag=[1, 2, 3, 4]),197            mock_random_generator=None198        ).sorted_area_target.assert_called_once_with(199            area_target_value=1,200            sort_value=[1, 2, 3, 4],201            inventory="inventory",202            eligible="eligible"203        )204    def test_hw_stem_snag_sort_area_target(self):205        get_test_function(206            mock_sit_event_row={207                "sort_type": "HWSTEMSNAG",208                "target_type": "Area",209                "target": 1,210                "disturbance_type": "fire"},211            mock_state_variables="mock_state_vars",212            mock_pools=SimpleNamespace(HardwoodStemSnag=[1, 2, 3, 4]),213            mock_random_generator=None214        ).sorted_area_target.assert_called_once_with(215            area_target_value=1,216            sort_value=[1, 2, 3, 4],217            inventory="inventory",218            eligible="eligible"219        )220    def test_swage_sort_area_target(self):221        """confirm state_variable.age is used as a sort value222        """223        get_test_function(224            mock_sit_event_row={225                "sort_type": "SORT_BY_SW_AGE",226                "target_type": "Area",227                "target": 100,228                "disturbance_type": "fire"},229            mock_state_variables=SimpleNamespace(age=[10, 2, 30]),230            mock_pools="pools",231            mock_random_generator=None232        ).sorted_area_target.assert_called_once_with(233            area_target_value=100,234            sort_value=[10, 2, 30],235            inventory="inventory",236            eligible="eligible"237        )238    def test_hwage_sort_area_target(self):239        """confirm state_variable.age is used as a sort value240        """241        get_test_function(242            mock_sit_event_row={243                "sort_type": "SORT_BY_HW_AGE",244                "target_type": "Area",245                "target": 100,246                "disturbance_type": "fire"},247            mock_state_variables=SimpleNamespace(age=[10, 2, 30]),248            mock_pools="pools",249            mock_random_generator=None250        ).sorted_area_target.assert_called_once_with(251            area_target_value=100,252            sort_value=[10, 2, 30],253            inventory="inventory",254            eligible="eligible"255        )256    def test_proportion_sort_merch_target(self):257        mock_production = SimpleNamespace(258            Total=[3, 3, 3, 3],259            DisturbanceSoftProduction=[1, 1, 1, 1],260            DisturbanceHardProduction=[1, 1, 1, 1],261            DisturbanceDOMProduction=[1, 1, 1, 1])262        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):263            self.assertTrue(disturbance_type_id == 90)264            self.assertTrue(cbm_vars.inventory == "inventory")265            self.assertTrue(cbm_vars.pools == "pools")266            return mock_production267        get_test_function(268            mock_sit_event_row={269                "sort_type": "PROPORTION_OF_EVERY_RECORD",270                "target_type": "Merchantable",271                "target": 17,272                "disturbance_type_id": 90,273                "efficiency": 55},274            mock_state_variables="mock_state_vars",275            mock_pools="pools",276            mock_random_generator=None,277            mock_disturbance_production_func=mock_disturbance_production_func278        ).proportion_merch_target.assert_called_once_with(279            carbon_target=17,280            disturbance_production=mock_production.Total,281            inventory="inventory",282            efficiency=55,283            eligible="eligible"284        )285    def test_merch_total_sort_merch_target(self):286        mock_production = SimpleNamespace(287            Total=[3, 3, 3, 3],288            DisturbanceSoftProduction=[1, 1, 1, 1],289            DisturbanceHardProduction=[1, 1, 1, 1],290            DisturbanceDOMProduction=[1, 1, 1, 1])291        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):292            self.assertTrue(disturbance_type_id == 99)293            self.assertTrue(cbm_vars.inventory == "inventory")294            self.assertTrue(cbm_vars.pools == "pools")295            return mock_production296        get_test_function(297            mock_sit_event_row={298                "sort_type": "MERCHCSORT_TOTAL",299                "target_type": "Merchantable",300                "target": 4,301                "disturbance_type_id": 99,302                "efficiency": 100},303            mock_state_variables="mock_state_vars",304            mock_pools="pools",305            mock_random_generator=None,306            mock_disturbance_production_func=mock_disturbance_production_func307        ).sorted_merch_target.assert_called_once_with(308            carbon_target=4,309            disturbance_production=mock_production,310            inventory="inventory",311            sort_value=mock_production.Total,312            efficiency=100,313            eligible="eligible"314        )315    def test_merch_sw_sort_merch_target(self):316        mock_production = SimpleNamespace(317            Total=[3, 3, 3, 3],318            DisturbanceSoftProduction=[1, 1, 1, 1],319            DisturbanceHardProduction=[1, 1, 1, 1],320            DisturbanceDOMProduction=[1, 1, 1, 1])321        def mock_disturbance_production_func(cbm_vars,  disturbance_type_id):322            self.assertTrue(disturbance_type_id == 45)323            self.assertTrue(cbm_vars.inventory == "inventory")324            self.assertTrue(cbm_vars.pools == "pools")325            return mock_production326        # tests that the + operator is used for the correct production fields327        expected_sort_value = \328            mock_production.DisturbanceSoftProduction + \329            mock_production.DisturbanceDOMProduction330        get_test_function(331            mock_sit_event_row={332                "sort_type": "MERCHCSORT_SW",333                "target_type": "Merchantable",334                "target": 23,335                "disturbance_type_id": 45,336                "efficiency": 0.1},337            mock_state_variables="mock_state_vars",338            mock_pools="pools",339            mock_random_generator=None,340            mock_disturbance_production_func=mock_disturbance_production_func341        ).sorted_merch_target.assert_called_once_with(342            carbon_target=23,343            disturbance_production=mock_production,344            inventory="inventory",345            sort_value=expected_sort_value,346            efficiency=0.1,347            eligible="eligible"348        )349    def test_merch_hw_sort_merch_target(self):350        mock_production = SimpleNamespace(351            Total=[3, 3, 3, 3],352            DisturbanceSoftProduction=[1, 1, 1, 1],353            DisturbanceHardProduction=[1, 1, 1, 1],354            DisturbanceDOMProduction=[1, 1, 1, 1])355        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):356            self.assertTrue(disturbance_type_id == 73)357            self.assertTrue(cbm_vars.inventory == "inventory")358            self.assertTrue(cbm_vars.pools == "pools")359            return mock_production360        # tests that the + operator is used for the correct production fields361        expected_sort_value = \362            mock_production.DisturbanceHardProduction + \363            mock_production.DisturbanceDOMProduction364        get_test_function(365            mock_sit_event_row={366                "sort_type": "MERCHCSORT_HW",367                "target_type": "Merchantable",368                "target": 31,369                "disturbance_type_id": 73,370                "efficiency": 0.99},371            mock_state_variables="mock_state_vars",372            mock_pools="pools",373            mock_random_generator=None,374            mock_disturbance_production_func=mock_disturbance_production_func375        ).sorted_merch_target.assert_called_once_with(376            carbon_target=31,377            disturbance_production=mock_production,378            inventory="inventory",379            sort_value=expected_sort_value,380            efficiency=0.99,381            eligible="eligible"382        )383    def test_random_sort_merch_target(self):384        mock_pools = pd.DataFrame({"a": [12, 3, 4, 5]})385        def mock_random_gen(n_values):386            return [1] * n_values387        mock_production = SimpleNamespace(388            Total=[3, 3, 3, 3],389            DisturbanceSoftProduction=[1, 1, 1, 1],390            DisturbanceHardProduction=[1, 1, 1, 1],391            DisturbanceDOMProduction=[1, 1, 1, 1])392        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):393            self.assertTrue(disturbance_type_id == 43)394            self.assertTrue(cbm_vars.inventory == "inventory")395            self.assertTrue(list(cbm_vars.pools.a) == [12, 3, 4, 5])396            return mock_production397        get_test_function(398            mock_sit_event_row={399                "sort_type": "RANDOMSORT",400                "target_type": "Merchantable",401                "target": 31,402                "disturbance_type_id": 43,403                "efficiency": 0.99},404            mock_state_variables="mock_state_vars",405            mock_pools=mock_pools,406            mock_random_generator=mock_random_gen,407            mock_disturbance_production_func=mock_disturbance_production_func408        ).sorted_merch_target.assert_called_once_with(409            carbon_target=31,410            disturbance_production=mock_production,411            inventory="inventory",412            sort_value=mock_random_gen(mock_pools.shape[0]),413            efficiency=0.99,414            eligible="eligible"415        )416    def test_total_stem_snag_sort_merch_target(self):417        mock_production = SimpleNamespace(418            Total=[3, 3, 3, 3])419        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):420            self.assertTrue(disturbance_type_id == 15)421            self.assertTrue(cbm_vars.inventory == "inventory")422            self.assertTrue(cbm_vars.pools.SoftwoodStemSnag == [1, 2, 3])423            self.assertTrue(cbm_vars.pools.HardwoodStemSnag == [1, 2, 3])424            return mock_production425        mock_pools = SimpleNamespace(426            SoftwoodStemSnag=[1, 2, 3],427            HardwoodStemSnag=[1, 2, 3])428        get_test_function(429            mock_sit_event_row={430                "sort_type": "TOTALSTEMSNAG",431                "target_type": "Merchantable",432                "target": 37,433                "disturbance_type_id": 15,434                "efficiency": 1.0},435            mock_state_variables="mock_state_vars",436            mock_pools=mock_pools,437            mock_random_generator=None,438            mock_disturbance_production_func=mock_disturbance_production_func439        ).sorted_merch_target.assert_called_once_with(440            carbon_target=37,441            disturbance_production=mock_production,442            inventory="inventory",443            # simply confirm the '+' operator is used on the correct pools444            sort_value=(445                mock_pools.SoftwoodStemSnag +446                mock_pools.HardwoodStemSnag),447            efficiency=1.0,448            eligible="eligible"449        )450    def test_sw_stem_snag_sort_merch_target(self):451        mock_production = SimpleNamespace(452            Total=[3, 3, 3, 3])453        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):454            self.assertTrue(disturbance_type_id == 57)455            self.assertTrue(cbm_vars.inventory == "inventory")456            self.assertTrue(cbm_vars.pools.SoftwoodStemSnag == [1, 2, 3])457            return mock_production458        mock_pools = SimpleNamespace(459            SoftwoodStemSnag=[1, 2, 3])460        get_test_function(461            mock_sit_event_row={462                "sort_type": "SWSTEMSNAG",463                "target_type": "Merchantable",464                "target": 47,465                "disturbance_type_id": 57,466                "efficiency": 1.1},467            mock_state_variables="mock_state_vars",468            mock_pools=mock_pools,469            mock_random_generator=None,470            mock_disturbance_production_func=mock_disturbance_production_func471        ).sorted_merch_target.assert_called_once_with(472            carbon_target=47,473            disturbance_production=mock_production,474            inventory="inventory",475            sort_value=mock_pools.SoftwoodStemSnag,476            efficiency=1.1,477            eligible="eligible"478        )479    def test_hw_stem_snag_sort_merch_target(self):480        mock_production = SimpleNamespace(481            Total=[3, 3, 3, 3])482        def mock_disturbance_production_func(cbm_vars, disturbance_type_id):483            self.assertTrue(disturbance_type_id == 9)484            self.assertTrue(cbm_vars.inventory == "inventory")485            self.assertTrue(cbm_vars.pools.HardwoodStemSnag == [1, 2, 3])486            return mock_production487        mock_pools = SimpleNamespace(488            HardwoodStemSnag=[1, 2, 3])489        get_test_function(490            mock_sit_event_row={491                "sort_type": "HWSTEMSNAG",492                "target_type": "Merchantable",493                "target": 97,494                "disturbance_type_id": 9,495                "efficiency": 2.1},496            mock_state_variables="mock_state_vars",497            mock_pools=mock_pools,498            mock_random_generator=None,499            mock_disturbance_production_func=mock_disturbance_production_func500        ).sorted_merch_target.assert_called_once_with(501            carbon_target=97,502            disturbance_production=mock_production,503            inventory="inventory",504            sort_value=mock_pools.HardwoodStemSnag,505            efficiency=2.1,506            eligible="eligible"507        )508    def test_age_sort_area_target(self):509        get_test_function(510            mock_sit_event_row={511                "sort_type": "SORT_BY_HW_AGE",512                "target_type": "Area",513                "target": 100},514            mock_state_variables=SimpleNamespace(age=[10, 2, 30]),515            mock_pools="pools",516            mock_random_generator=None517        ).sorted_area_target.assert_called_once_with(518            area_target_value=100,519            sort_value=[10, 2, 30],520            inventory="inventory",521            eligible="eligible"522        )523    def test_svoid_sort_proportion_target(self):524        get_test_function(525            mock_sit_event_row={526                "sort_type": "SVOID",527                "target_type": "Proportion",528                "target": 100,529                "spatial_reference": 1000},530            mock_state_variables="inventory",531            mock_pools="pools",532            mock_random_generator=None533        ).spatially_indexed_target.assert_called_once_with(534            identifier=1000,535            inventory="inventory"536        )537    def test_svoid_sort_merch_target(self):538        get_test_function(539            mock_sit_event_row={540                "sort_type": "SVOID",541                "target_type": "Merchantable",542                "target": 10,543                "spatial_reference": 4000},544            mock_state_variables="inventory",545            mock_pools="pools",546            mock_random_generator=None547        ).spatially_indexed_target.assert_called_once_with(548            identifier=4000,549            inventory="inventory"550        )551    def test_svoid_sort_area_target(self):552        get_test_function(553            mock_sit_event_row={554                "sort_type": "SVOID",555                "target_type": "Area",556                "target": 130,557                "spatial_reference": 1050},558            mock_state_variables="inventory",559            mock_pools="pools",560            mock_random_generator=None561        ).spatially_indexed_target.assert_called_once_with(562            identifier=1050,563            inventory="inventory"...

test_ghostwriter.py

Source:test_ghostwriter.py

...25from hypothesis.errors import InvalidArgument, MultipleFailures, Unsatisfiable26from hypothesis.extra import ghostwriter27from hypothesis.strategies import from_type, just28varied_excepts = pytest.mark.parametrize("ex", [(), ValueError, (TypeError, re.error)])29def get_test_function(source_code):30    # A helper function to get the dynamically-defined test function.31    # Note that this also tests that the module is syntatically-valid,32    # AND free from undefined names, import problems, and so on.33    namespace = {}34    exec(source_code, namespace)35    tests = [36        v37        for k, v in namespace.items()38        if k.startswith(("test_", "Test")) and not isinstance(v, ModuleType)39    ]40    assert len(tests) == 1, tests41    return tests[0]42@pytest.mark.parametrize(43    "badness", ["not an exception", BaseException, [ValueError], (Exception, "bad")]44)45def test_invalid_exceptions(badness):46    with pytest.raises(InvalidArgument):47        ghostwriter._check_except(badness)48def test_style_validation():49    ghostwriter._check_style("pytest")50    ghostwriter._check_style("unittest")51    with pytest.raises(InvalidArgument):52        ghostwriter._check_style("not a valid style")53def test_strategies_with_invalid_syntax_repr_as_nothing():54    msg = "$$ this repr is not Python syntax $$"55    class NoRepr:56        def __repr__(self):57            return msg58    s = just(NoRepr())59    assert repr(s) == f"just({msg})"60    assert ghostwriter._valid_syntax_repr(s) == "nothing()"61class AnEnum(enum.Enum):62    a = "value of AnEnum.a"63    b = "value of AnEnum.b"64def takes_enum(foo=AnEnum.a):65    # This can only fail if we use the default argument to guess66    # that any instance of that enum type should be allowed.67    assert foo != AnEnum.b68def test_ghostwriter_exploits_arguments_with_enum_defaults():69    source_code = ghostwriter.fuzz(takes_enum)70    test = get_test_function(source_code)71    with pytest.raises(AssertionError):72        test()73def timsort(seq: Sequence[int]) -> List[int]:74    return sorted(seq)75def non_type_annotation(x: 3):  # type: ignore76    pass77def annotated_any(x: Any):78    pass79space_in_name = type("a name", (type,), {"__init__": lambda self: None})80class NotResolvable:81    def __init__(self, unannotated_required):82        pass83def non_resolvable_arg(x: NotResolvable):84    pass85def test_flattens_one_of_repr():86    strat = from_type(Union[int, Sequence[int]])87    assert repr(strat).count("one_of(") > 188    assert ghostwriter._valid_syntax_repr(strat).count("one_of(") == 189@varied_excepts90@pytest.mark.parametrize(91    "func",92    [93        re.compile,94        json.loads,95        json.dump,96        timsort,97        ast.literal_eval,98        non_type_annotation,99        annotated_any,100        space_in_name,101        non_resolvable_arg,102    ],103)104def test_ghostwriter_fuzz(func, ex):105    source_code = ghostwriter.fuzz(func, except_=ex)106    get_test_function(source_code)107@varied_excepts108@pytest.mark.parametrize(109    "func", [re.compile, json.loads, json.dump, timsort, ast.literal_eval]110)111def test_ghostwriter_unittest_style(func, ex):112    source_code = ghostwriter.fuzz(func, except_=ex, style="unittest")113    assert issubclass(get_test_function(source_code), unittest.TestCase)114def no_annotations(foo=None, bar=False):115    pass116def test_inference_from_defaults_and_none_booleans_reprs_not_just_and_sampled_from():117    source_code = ghostwriter.fuzz(no_annotations)118    assert "@given(foo=st.none(), bar=st.booleans())" in source_code119def hopefully_hashable(foo: Set[Decimal]):120    pass121def test_no_hashability_filter():122    # In from_type, we ordinarily protect users from really weird cases like123    # `Decimal('snan')` - a unhashable value of a hashable type - but in the124    # ghostwriter we instead want to present this to the user for an explicit125    # decision.  They can pass `allow_nan=False`, fix their custom type's126    # hashing logic, or whatever else; simply doing nothing will usually work.127    source_code = ghostwriter.fuzz(hopefully_hashable)128    assert "@given(foo=st.sets(st.decimals()))" in source_code129    assert "_can_hash" not in source_code130@pytest.mark.parametrize(131    "gw,args",132    [133        (ghostwriter.fuzz, ["not callable"]),134        (ghostwriter.idempotent, ["not callable"]),135        (ghostwriter.roundtrip, []),136        (ghostwriter.roundtrip, ["not callable"]),137        (ghostwriter.equivalent, [sorted]),138        (ghostwriter.equivalent, [sorted, "not callable"]),139    ],140)141def test_invalid_func_inputs(gw, args):142    with pytest.raises(InvalidArgument):143        gw(*args)144def test_run_ghostwriter_fuzz():145    # Our strategy-guessing code works for all the arguments to sorted,146    # and we handle positional-only arguments in calls correctly too.147    source_code = ghostwriter.fuzz(sorted)148    assert "st.nothing()" not in source_code149    get_test_function(source_code)()150class MyError(UnicodeDecodeError):151    pass152@pytest.mark.parametrize(153    "exceptions,output",154    [155        # Discard subclasses of other exceptions to catch, including non-builtins,156        # and replace OSError aliases with OSError.157        ((Exception, UnicodeError), "Exception"),158        ((UnicodeError, MyError), "UnicodeError"),159        ((IOError,), "OSError"),160        ((IOError, UnicodeError), "(OSError, UnicodeError)"),161    ],162)163def test_exception_deduplication(exceptions, output):164    _, body = ghostwriter._make_test_body(165        lambda: None, ghost="", test_body="pass", except_=exceptions, style="pytest"166    )167    assert f"except {output}:" in body168def test_run_ghostwriter_roundtrip():169    # This test covers the whole lifecycle: first, we get the default code.170    # The first argument is unknown, so we fail to draw from st.nothing()171    source_code = ghostwriter.roundtrip(json.dumps, json.loads)172    with pytest.raises(Unsatisfiable):173        get_test_function(source_code)()174    # Replacing that nothing() with a strategy for JSON allows us to discover175    # two possible failures: `nan` is not equal to itself, and if dumps is176    # passed allow_nan=False it is a ValueError to pass a non-finite float.177    source_code = source_code.replace(178        "st.nothing()",179        "st.recursive(st.one_of(st.none(), st.booleans(), st.floats(), st.text()), "180        "lambda v: st.lists(v, max_size=2) | st.dictionaries(st.text(), v, max_size=2)"181        ", max_leaves=2)",182    )183    try:184        get_test_function(source_code)()185    except (AssertionError, ValueError, MultipleFailures):186        pass187    # Finally, restricting ourselves to finite floats makes the test pass!188    source_code = source_code.replace(189        "st.floats()", "st.floats(allow_nan=False, allow_infinity=False)"190    )191    get_test_function(source_code)()192@varied_excepts193@pytest.mark.parametrize("func", [sorted, timsort])194def test_ghostwriter_idempotent(func, ex):195    source_code = ghostwriter.idempotent(func, except_=ex)196    test = get_test_function(source_code)197    if "=st.nothing()" in source_code:198        with pytest.raises(Unsatisfiable):199            test()200    else:201        test()202def test_overlapping_args_use_union_of_strategies():203    def f(arg: int) -> None:204        pass205    def g(arg: float) -> None:206        pass207    source_code = ghostwriter.equivalent(f, g)208    assert "arg=st.one_of(st.integers(), st.floats())" in source_code209def test_module_with_mock_does_not_break():210    # Before we added an explicit check for unspec'd mocks, they would pass...

test.py

Source:test.py

...53    """54    def __init__(self, test_method_name, fixture_store, fixture_namespace, variation):55        super(Test, self).__init__(fixture_store, fixture_namespace, variation)56        self._test_method_name = test_method_name57    def get_test_function(self):58        return getattr(self, self._test_method_name)59    def get_tags(self):60        test_tags = (get_tags(type(self))61                     + get_tags(getattr(type(self), self._test_method_name))62                     + self.get_variation().tags)63        if nofixtures.is_marked(self.get_test_function()):64            return test_tags65        return test_tags + self._get_fixture_tags()66    __slash_skipped__ = False67    __slash_skipped_reason__ = None68    __slash_needed_contexts__ = None69    @classmethod70    def skip_all(cls, reason=None):71        cls.__slash_skipped__ = True72        cls.__slash_skipped_reason__ = reason73    def get_required_fixture_objects(self):74        method = self.get_test_function()75        return self._fixture_store.get_required_fixture_objects(method, namespace=self._fixture_namespace)76    def get_address_in_factory(self):77        returned = ''78        if self._test_method_name is not None:79            returned += ".{}".format(self._test_method_name)80        return returned81    def _get_call_string(self, kwargs):82        if not kwargs:83            return ""84        return "({})".format(", ".join("{}={!r}".format(k, v) for k, v in kwargs.items()))85    def get_requirements(self):86        test_requirements = get_requirements(type(self)) + get_requirements(self.get_test_function())87        if nofixtures.is_marked(self.get_test_function()):88            return test_requirements89        return list(set(test_requirements + self._get_fixtures_requirements()))90    def run(self):  # pylint: disable=E020291        """92        .. warning:: Not to be overriden93        """94        method = self.get_test_function()95        with bound_parametrizations_context(self._variation, self._fixture_store, self._fixture_namespace):96            _call_with_fixtures = functools.partial(self._fixture_store.call_with_fixtures, namespace=self._fixture_namespace)97            _call_with_fixtures(self.before)98            try:99                with handling_exceptions():100                    result = _call_with_fixtures(method, trigger_test_start=True)101                    if isinstance(result, GeneratorType):102                        raise InvalidTest('{} is a generator. Running generators is not supported'.format(method))103            finally:104                with handling_exceptions():105                    _call_with_fixtures(self.after, trigger_test_end=True)106    def before(self):107        """108        Gets called before each separate case generated from this test class...

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