How to use the dbnd.testing.helpers_pytest.assert_run_task function in dbnd

def test_log_metric(self):
        @task
        def t_f_metric(a=5):
            log_metric("t_f", a)

        t = assert_run_task(t_f_metric.t())
        assert (
            t.ctrl.last_task_run.meta_files.get_metric_target("t_f").read().split()[1]
            == "5"
        )

def test_unknown_format(self):
        task = TTextDataTask(text_data=scenario_path("data/some_unknown_ext.myext"))
        assert_run_task(task)

def test_ret_dict(self):
        @task(result=(output(name="o_a").csv[List[str]], "o_b"))
        def t_f(a=5):
            return {"o_a": [str(a)], "o_b": ["2"]}

        t = assert_run_task(t_f.t(a=6))
        assert "6\n" == t.o_a.read()

def test_feature_store_pipeline(self):
        t = assert_run_task(CreateFeatureStoreViaClass())
        assert_run_task(CalculateAdvancedFeatures(store=t.store))
        assert_run_task(report_features.t(feature_store=t.store))

def test_prod_immutable_output_dict_dev(self):
        t = assert_run_task(TProdImmutbaleOutputs())
        print(t)

def test_custom_type_parameter(self):
        t = assert_run_task(BuildMyData())
        assert_run_task(MyDataReport(my_data=t.my_data))

def test_sanity(self):
        assert_run_task(dbnd_sanity_check.task())

def test_simple_no_call(self):
        @task
        def t_f_nocall(a=5):
            assert a == 6

        t_f_nocall(a=6)
        assert_run_task(t_f_nocall.t(a=6))

def test_input_lines_as_filename_args(self, target_1_2):
        t_f_data_list_str_with_int_default(target_1_2.readlines(), 2)

        target = t_f_data_list_str_with_int_default.t(target_1_2.path, 2)
        assert_run_task(target)

def test_simple_func(self):
        assert_run_task(
            t_d_1.task(
                a_str="1", b_datetime="2018-01-01T101010.1", c_timedelta="5d", d_int="1"
            )