コード例 #1
0
ファイル: shared_data_test.py プロジェクト: femtotrader/pypet
    def test_storing_and_manipulating(self):
        filename = make_temp_dir('hdf5manipulation.hdf5')
        traj = Trajectory(name=make_trajectory_name(self), filename=filename)
        trajname = traj.v_name

        thedata = np.zeros((1000, 1000))
        res = traj.f_add_result(SharedResult, 'shared')
        myarray = SharedArray('array', res, trajectory=traj, add_to_parent=True)
        mytable = SharedTable('t1', res, trajectory=traj, add_to_parent=True)
        mytable2 = SharedTable('t2', res, trajectory=traj, add_to_parent=True)
        mytable3 = SharedTable('t3', res, trajectory=traj, add_to_parent=True)

        traj.f_store(only_init=True)
        myarray.create_shared_data(data=thedata)
        mytable.create_shared_data(first_row={'hi': compat.tobytes('hi'), 'huhu': np.ones(3)})
        mytable2.create_shared_data(description={'ha': pt.StringCol(2, pos=0), 'haha': pt.FloatCol(pos=1)})
        mytable3.create_shared_data(description={'ha': pt.StringCol(2, pos=0), 'haha': pt.FloatCol(pos=1)})

        traj.f_store()

        newrow = {'ha': 'hu', 'haha': 4.0}

        with self.assertRaises(TypeError):
            traj.shared.t2.row

        with StorageContextManager(traj) as cm:
            row = traj.shared.t2.row
            for irun in range(11):
                for key, val in newrow.items():
                    row[key] = val
                row.append()
            traj.shared.t3.flush()

        data = myarray.read()
        myarray.get_data_node()
        self.assertTrue(np.all(data == thedata))

        with StorageContextManager(traj):
            myarray[2, 2] = 10
            data = myarray.read()
            self.assertTrue(data[2, 2] == 10)

        self.assertTrue(data[2, 2] == 10)
        self.assertFalse(traj.v_storage_service.is_open)

        traj = load_trajectory(name=trajname, filename=filename)

        traj.f_load(load_data=2)

        traj.shared.t2.traj = traj
        traj.shared.t1.traj = traj
        traj.shared.array.traj = traj

        self.assertTrue(traj.shared.t2.nrows == 11, '%s != 11' % str(traj.shared.t2.nrows))
        self.assertTrue(traj.shared.t2[0]['ha'] == compat.tobytes('hu'), traj.shared.t2[0]['ha'])
        self.assertTrue(traj.shared.t2[1]['ha'] == compat.tobytes('hu'), traj.shared.t2[1]['ha'])
        self.assertTrue('huhu' in traj.shared.t1.colnames)
        self.assertTrue(traj.shared.array[2, 2] == 10)
コード例 #2
0
    def setUp(self):
        self.filename = make_temp_dir('shared_table_test.hdf5')

        self.traj = Trajectory(name=make_trajectory_name(self),
                               filename=self.filename)

        self.traj.v_standard_result = SharedResult

        self.traj.f_store(only_init=True)

        self.traj.f_add_result('shared_data')

        self.shared_array = SharedArray(name='array',
                                        parent=self.traj.shared_data,
                                        trajectory=self.traj,
                                        add_to_parent=True)
コード例 #3
0
    def test_errors(self):
        filename = make_temp_dir('hdf5errors.hdf5')
        traj = Trajectory(name=make_trajectory_name(self), filename=filename)

        npearray = np.ones((2, 10, 3), dtype=np.float)
        thevlarray = np.array(
            [compat.tobytes('j'), 22.2,
             compat.tobytes('gutter')])

        with self.assertRaises(TypeError):
            traj.f_add_result(
                SharedResult, 'arrays.vlarray',
                SharedVLArray()).create_shared_data(obj=thevlarray)
        traj.f_store()
        traj.arrays.vlarray.create_shared_data(obj=thevlarray)
        traj.f_add_result(SharedResult, 'arrays.array',
                          SharedArray()).create_shared_data(data=npearray)
        traj.arrays.f_add_result(SharedResult,
                                 'super.carray',
                                 SharedCArray(),
                                 comment='carray').create_shared_data(
                                     shape=(10, 10), atom=pt.atom.FloatAtom())
        traj.arrays.f_add_result(SharedResult, 'earray',
                                 SharedEArray()).create_shared_data(
                                     'earray', obj=npearray)

        traj.f_store()

        with self.assertRaises(TypeError):
            traj.arrays.array.iterrows()

        with StorageContextManager(traj):
            with self.assertRaises(RuntimeError):
                with StorageContextManager(traj):
                    pass
            self.assertTrue(traj.v_storage_service.is_open)
            with self.assertRaises(RuntimeError):
                StorageContextManager(traj).open_store()

        self.assertFalse(traj.v_storage_service.is_open)
コード例 #4
0
ファイル: shared_data_test.py プロジェクト: MehmetTimur/pypet
    def test_conversions(self):
        filename = make_temp_dir("hdf5manipulation.hdf5")
        traj = Trajectory(name=make_trajectory_name(self), filename=filename)

        trajname = traj.v_name
        traj.v_standard_result = SharedResult

        traj.f_store(only_init=True)

        traj.f_add_result("shared_data")

        thedata = np.zeros((1000, 1000))
        myarray = SharedArray("array", traj.shared_data, trajectory=traj)
        traj.shared_data["array"] = myarray
        mytable = SharedTable("t1", traj.shared_data, trajectory=traj)
        traj.shared_data["t1"] = mytable
        # mytable2 = SharedTableResult('h.t2', trajectory=traj)
        # mytable3 = SharedTableResult('jjj.t3', trajectory=traj)
        dadict = {"hi": [1, 2, 3, 4, 5], "shu": ["bi", "du", "da", "ha", "hui"]}
        dadict2 = {"answer": [42]}
        res = traj.f_add_result("shared.dfs")
        res["df"] = SharedPandasFrame()
        res["df"].create_shared_data(data=pd.DataFrame(dadict), trajectory=traj)
        frame = SharedPandasFrame("df1", traj.f_get("shared.dfs"), trajectory=traj)
        frame.create_shared_data(data=pd.DataFrame(dadict2))
        res["df1"] = frame

        traj.f_add_result("mylist", [1, 2, 3])
        traj.f_add_result("my.mytuple", k=(1, 2, 3), wa=42)
        traj.f_add_result("my.myarray", np.zeros((50, 50)))
        traj.f_add_result("my.myframe", data=pd.DataFrame(dadict2))
        traj.f_add_result("my.mytable", ObjectTable(data=dadict2))

        myarray.create_shared_data(data=thedata)
        mytable.create_shared_data(first_row={"hi": compat.tobytes("hi"), "huhu": np.ones(3)})

        traj.f_store()

        data = myarray.read()
        arr = myarray.get_data_node()
        self.assertTrue(np.all(data == thedata))

        with StorageContextManager(traj) as cm:
            myarray[2, 2] = 10
            data = myarray.read()
            self.assertTrue(data[2, 2] == 10)

        self.assertTrue(data[2, 2] == 10)
        self.assertFalse(traj.v_storage_service.is_open)

        traj = load_trajectory(name=trajname, filename=filename, load_all=2, dynamic_imports=SharedResult)

        make_ordinary_result(traj.shared_data, "array", trajectory=traj)
        array = traj.shared_data.array
        self.assertTrue(isinstance(array, np.ndarray))
        thedata[2, 2] = 10
        self.assertTrue(np.all(array == thedata))

        make_ordinary_result(traj.shared_data, "t1", trajectory=traj)
        t1 = traj.shared_data.t1
        self.assertTrue(isinstance(t1, ObjectTable))  #
        self.assertTrue(np.all(t1["huhu"][0] == np.ones(3)))

        dfs = traj.shared.dfs
        make_ordinary_result(traj.shared.dfs, "df", trajectory=traj)
        theframe = dfs.f_get("df")
        self.assertTrue(isinstance(dfs, Result))
        self.assertTrue(isinstance(theframe, pd.DataFrame))
        self.assertTrue(theframe["hi"][0] == 1)

        listres = traj.f_get("mylist")
        listres = make_shared_result(listres, 0, trajectory=traj)
        with StorageContextManager(traj) as cm:
            self.assertTrue(listres[0][2] == 3)
            listres[0][0] = 4

        self.assertTrue(listres[0][0] == 4)
        listres = make_ordinary_result(listres, 0, trajectory=traj)
        traj = load_trajectory(name=trajname, filename=filename, load_all=2, dynamic_imports=SharedResult)
        mylist = traj.mylist
        self.assertTrue(isinstance(listres, Result))
        self.assertTrue(mylist[0] == 4)
        self.assertTrue(isinstance(mylist, list))

        mytuple = traj.mytuple

        with self.assertRaises(AttributeError):
            mytuple = make_shared_result(mytuple, "mylist", traj, new_class=SharedArray)

        mytuple = make_shared_result(mytuple, "k", traj, new_class=SharedArray)
        self.assertTrue(mytuple.k[1] == 2)

        mytuple = make_ordinary_result(mytuple, "k", trajectory=traj)
        self.assertTrue(isinstance(mytuple.k, tuple))
        self.assertTrue(mytuple.k[2] == 3)

        myframe = traj.myframe
        myframe = make_shared_result(myframe, "data", traj)

        theframe = myframe.data.read()
        self.assertTrue(theframe["answer"][0] == 42)

        myframe = make_ordinary_result(myframe, "data", trajectory=traj)
        traj.f_load_item(myframe)
        self.assertTrue(myframe.data["answer"][0] == 42)

        mytable = traj.f_get("mytable")
        mytable = make_shared_result(mytable, 0, traj)

        self.assertTrue(isinstance(mytable[0], SharedTable))
        rows = mytable.mytable.read()

        self.assertTrue(rows[0][0] == 42)

        mytable = make_ordinary_result(mytable, 0, trajectory=traj)

        self.assertTrue(isinstance(mytable, Result))
        self.assertTrue(mytable[0]["answer"][0] == 42)
コード例 #5
0
    def test_conversions(self):
        filename = make_temp_dir('hdf5manipulation.hdf5')
        traj = Trajectory(name=make_trajectory_name(self), filename=filename)

        trajname = traj.v_name
        traj.v_standard_result = SharedResult

        traj.f_store(only_init=True)

        traj.f_add_result('shared_data')

        thedata = np.zeros((1000, 1000))
        myarray = SharedArray('array', traj.shared_data, trajectory=traj)
        traj.shared_data['array'] = myarray
        mytable = SharedTable('t1', traj.shared_data, trajectory=traj)
        traj.shared_data['t1'] = mytable
        dadict = {
            'hi': [1, 2, 3, 4, 5],
            'shu': ['bi', 'du', 'da', 'ha', 'hui']
        }
        dadict2 = {'answer': [42]}
        res = traj.f_add_result('shared.dfs')
        res['df'] = SharedPandasFrame()
        res['df'].create_shared_data(data=pd.DataFrame(dadict),
                                     trajectory=traj)
        frame = SharedPandasFrame('df1',
                                  traj.f_get('shared.dfs'),
                                  trajectory=traj,
                                  add_to_parent=True)
        frame.create_shared_data(data=pd.DataFrame(dadict2), )
        res['df1'] = frame

        traj.f_add_result('mylist', [1, 2, 3])
        traj.f_add_result('my.mytuple', k=(1, 2, 3), wa=42)
        traj.f_add_result('my.myarray', np.zeros((50, 50)))
        traj.f_add_result('my.myframe', data=pd.DataFrame(dadict2))
        traj.f_add_result('my.mytable', ObjectTable(data=dadict2))

        myarray.create_shared_data(data=thedata)
        mytable.create_shared_data(first_row={
            'hi': compat.tobytes('hi'),
            'huhu': np.ones(3)
        })

        traj.f_store()

        data = myarray.read()
        myarray.get_data_node()
        self.assertTrue(np.all(data == thedata))

        with StorageContextManager(traj):
            myarray[2, 2] = 10
            data = myarray.read()
            self.assertTrue(data[2, 2] == 10)

        self.assertTrue(data[2, 2] == 10)
        self.assertFalse(traj.v_storage_service.is_open)

        traj = load_trajectory(name=trajname,
                               filename=filename,
                               load_all=2,
                               dynamic_imports=SharedResult)

        make_ordinary_result(traj.shared_data, 'array', trajectory=traj)
        array = traj.shared_data.array
        self.assertTrue(isinstance(array, np.ndarray))
        thedata[2, 2] = 10
        self.assertTrue(np.all(array == thedata))

        make_ordinary_result(
            traj.shared_data,
            't1',
            trajectory=traj,
        )
        t1 = traj.shared_data.t1
        self.assertTrue(isinstance(t1, ObjectTable))
        self.assertTrue(np.all(t1['huhu'][0] == np.ones(3)))

        dfs = traj.shared.dfs
        make_ordinary_result(traj.shared.dfs, 'df', trajectory=traj)
        theframe = dfs.f_get('df')
        self.assertTrue(isinstance(dfs, Result))
        self.assertTrue(isinstance(theframe, pd.DataFrame))
        self.assertTrue(theframe['hi'][0] == 1)

        listres = traj.f_get('mylist')
        listres = make_shared_result(listres, 0, trajectory=traj)
        with StorageContextManager(traj):
            self.assertTrue(listres[0][2] == 3)
            listres[0][0] = 4

        self.assertTrue(listres[0][0] == 4)
        listres = make_ordinary_result(listres, 0, trajectory=traj)
        traj = load_trajectory(name=trajname,
                               filename=filename,
                               load_all=2,
                               dynamic_imports=SharedResult)
        mylist = traj.mylist
        self.assertTrue(isinstance(listres, Result))
        self.assertTrue(mylist[0] == 4)
        self.assertTrue(isinstance(mylist, list))

        mytuple = traj.mytuple

        with self.assertRaises(AttributeError):
            mytuple = make_shared_result(mytuple,
                                         'mylist',
                                         traj,
                                         new_class=SharedArray)

        mytuple = make_shared_result(mytuple, 'k', traj, new_class=SharedArray)
        self.assertTrue(mytuple.k[1] == 2)

        mytuple = make_ordinary_result(mytuple, 'k', trajectory=traj)
        self.assertTrue(isinstance(mytuple.k, tuple))
        self.assertTrue(mytuple.k[2] == 3)

        myframe = traj.myframe
        myframe = make_shared_result(myframe, 'data', traj)

        theframe = myframe.data.read()
        self.assertTrue(theframe['answer'][0] == 42)

        myframe = make_ordinary_result(myframe, 'data', trajectory=traj)
        traj.f_load_item(myframe)
        self.assertTrue(myframe.data['answer'][0] == 42)

        mytable = traj.f_get('mytable')
        mytable = make_shared_result(mytable, 0, traj)

        self.assertTrue(isinstance(mytable[0], SharedTable))
        rows = mytable.mytable.read()

        self.assertTrue(rows[0][0] == 42)

        mytable = make_ordinary_result(mytable, 0, trajectory=traj)

        self.assertTrue(isinstance(mytable, Result))
        self.assertTrue(mytable[0]['answer'][0] == 42)
コード例 #6
0
    def test_all_arrays(self):
        filename = make_temp_dir('hdf5arrays.hdf5')
        traj = Trajectory(name=make_trajectory_name(self), filename=filename)
        trajname = traj.v_name

        npearray = np.ones((2, 10, 3), dtype=np.float)
        thevlarray = np.array(
            [compat.tobytes('j'), 22.2,
             compat.tobytes('gutter')])
        traj.f_store(only_init=True)
        res = traj.f_add_result(SharedResult, 'arrays')
        res['carray'] = SharedCArray()
        res['carray'].create_shared_data(shape=(10, 10),
                                         atom=pt.atom.FloatAtom())
        res['earray'] = SharedEArray()
        res['earray'].create_shared_data(obj=npearray)
        res['vlarray'] = SharedVLArray()
        res['vlarray'].create_shared_data(obj=thevlarray)
        res['array'] = SharedArray()
        res['array'].create_shared_data(data=npearray)

        traj.f_store()

        traj = load_trajectory(name=trajname,
                               filename=filename,
                               load_all=2,
                               dynamic_imports=SharedResult)

        toappned = [44, compat.tobytes('k')]
        with StorageContextManager(traj):
            a1 = traj.arrays.array
            a1[0, 0, 0] = 4.0

            a2 = traj.arrays.carray
            a2[0, 1] = 4

            a4 = traj.arrays.vlarray
            a4.append(toappned)

            a3 = traj.arrays.earray
            a3.append(np.zeros((1, 10, 3)))

        traj = load_trajectory(name=trajname,
                               filename=filename,
                               load_all=2,
                               dynamic_imports=SharedResult)

        with StorageContextManager(traj):
            a1 = traj.arrays.array
            self.assertTrue(a1[0, 0, 0] == 4.0)

            a2 = traj.arrays.carray
            self.assertTrue(a2[0, 1] == 4)

            a3 = traj.arrays.earray
            self.assertTrue(a3.read().shape == (3, 10, 3))

            a4 = traj.arrays.vlarray
            for idx, x in enumerate(a4):
                if idx == 0:
                    self.assertTrue(np.all(x == np.array(thevlarray)))
                elif idx == 1:
                    self.assertTrue(np.all(x == np.array(toappned)))
                else:
                    raise RuntimeError()
コード例 #7
0
    def test_storing_and_manipulating(self):
        filename = make_temp_dir('hdf5manipulation.hdf5')
        traj = Trajectory(name=make_trajectory_name(self), filename=filename)
        trajname = traj.v_name

        thedata = np.zeros((1000, 1000))
        res = traj.f_add_result(SharedResult, 'shared')
        myarray = SharedArray('array',
                              res,
                              trajectory=traj,
                              add_to_parent=True)
        mytable = SharedTable('t1', res, trajectory=traj, add_to_parent=True)
        mytable2 = SharedTable('t2', res, trajectory=traj, add_to_parent=True)
        mytable3 = SharedTable('t3', res, trajectory=traj, add_to_parent=True)

        traj.f_store(only_init=True)
        myarray.create_shared_data(data=thedata)
        mytable.create_shared_data(first_row={
            'hi': compat.tobytes('hi'),
            'huhu': np.ones(3)
        })
        mytable2.create_shared_data(description={
            'ha': pt.StringCol(2, pos=0),
            'haha': pt.FloatCol(pos=1)
        })
        mytable3.create_shared_data(description={
            'ha': pt.StringCol(2, pos=0),
            'haha': pt.FloatCol(pos=1)
        })

        traj.f_store()

        newrow = {'ha': 'hu', 'haha': 4.0}

        with self.assertRaises(TypeError):
            traj.shared.t2.row

        with StorageContextManager(traj) as cm:
            row = traj.shared.t2.row
            for irun in range(11):
                for key, val in newrow.items():
                    row[key] = val
                row.append()
            traj.shared.t3.flush()

        data = myarray.read()
        myarray.get_data_node()
        self.assertTrue(np.all(data == thedata))

        with StorageContextManager(traj):
            myarray[2, 2] = 10
            data = myarray.read()
            self.assertTrue(data[2, 2] == 10)

        self.assertTrue(data[2, 2] == 10)
        self.assertFalse(traj.v_storage_service.is_open)

        traj = load_trajectory(name=trajname, filename=filename)

        traj.f_load(load_data=2)

        traj.shared.t2.traj = traj
        traj.shared.t1.traj = traj
        traj.shared.array.traj = traj

        self.assertTrue(traj.shared.t2.nrows == 11,
                        '%s != 11' % str(traj.shared.t2.nrows))
        self.assertTrue(traj.shared.t2[0]['ha'] == compat.tobytes('hu'),
                        traj.shared.t2[0]['ha'])
        self.assertTrue(traj.shared.t2[1]['ha'] == compat.tobytes('hu'),
                        traj.shared.t2[1]['ha'])
        self.assertTrue('huhu' in traj.shared.t1.colnames)
        self.assertTrue(traj.shared.array[2, 2] == 10)
コード例 #8
0
ファイル: shared_data_test.py プロジェクト: femtotrader/pypet
    def test_conversions(self):
        filename = make_temp_dir('hdf5manipulation.hdf5')
        traj = Trajectory(name=make_trajectory_name(self), filename=filename)

        trajname = traj.v_name
        traj.v_standard_result = SharedResult

        traj.f_store(only_init=True)

        traj.f_add_result('shared_data')

        thedata = np.zeros((1000, 1000))
        myarray = SharedArray('array', traj.shared_data, trajectory=traj)
        traj.shared_data['array'] = myarray
        mytable = SharedTable('t1', traj.shared_data, trajectory=traj)
        traj.shared_data['t1'] = mytable
        dadict = {'hi': [1, 2, 3, 4, 5], 'shu': ['bi', 'du', 'da', 'ha', 'hui']}
        dadict2 = {'answer': [42]}
        res = traj.f_add_result('shared.dfs')
        res['df'] = SharedPandasFrame()
        res['df'].create_shared_data(data=pd.DataFrame(dadict), trajectory=traj)
        frame = SharedPandasFrame('df1', traj.f_get('shared.dfs'), trajectory=traj,
                                  add_to_parent=True)
        frame.create_shared_data(data=pd.DataFrame(dadict2),)
        res['df1'] = frame

        traj.f_add_result('mylist', [1, 2, 3])
        traj.f_add_result('my.mytuple', k=(1, 2, 3), wa=42)
        traj.f_add_result('my.myarray', np.zeros((50, 50)))
        traj.f_add_result('my.myframe', data=pd.DataFrame(dadict2))
        traj.f_add_result('my.mytable', ObjectTable(data=dadict2))

        myarray.create_shared_data(data=thedata)
        mytable.create_shared_data(first_row={'hi': compat.tobytes('hi'), 'huhu': np.ones(3)})

        traj.f_store()

        data = myarray.read()
        myarray.get_data_node()
        self.assertTrue(np.all(data == thedata))

        with StorageContextManager(traj):
            myarray[2, 2] = 10
            data = myarray.read()
            self.assertTrue(data[2, 2] == 10)

        self.assertTrue(data[2, 2] == 10)
        self.assertFalse(traj.v_storage_service.is_open)

        traj = load_trajectory(name=trajname, filename=filename, load_all=2,
                               dynamic_imports=SharedResult)

        make_ordinary_result(traj.shared_data, 'array', trajectory=traj)
        array = traj.shared_data.array
        self.assertTrue(isinstance(array, np.ndarray))
        thedata[2, 2] = 10
        self.assertTrue(np.all(array == thedata))

        make_ordinary_result(traj.shared_data, 't1', trajectory=traj,)
        t1 = traj.shared_data.t1
        self.assertTrue(isinstance(t1, ObjectTable))
        self.assertTrue(np.all(t1['huhu'][0] == np.ones(3)))

        dfs = traj.shared.dfs
        make_ordinary_result(traj.shared.dfs, 'df', trajectory=traj)
        theframe = dfs.f_get('df')
        self.assertTrue(isinstance(dfs, Result))
        self.assertTrue(isinstance(theframe, pd.DataFrame))
        self.assertTrue(theframe['hi'][0] == 1)

        listres = traj.f_get('mylist')
        listres = make_shared_result(listres, 0, trajectory=traj)
        with StorageContextManager(traj):
            self.assertTrue(listres[0][2] == 3)
            listres[0][0] = 4

        self.assertTrue(listres[0][0] == 4)
        listres = make_ordinary_result(listres, 0, trajectory=traj)
        traj = load_trajectory(name=trajname, filename=filename, load_all=2,
                               dynamic_imports=SharedResult)
        mylist = traj.mylist
        self.assertTrue(isinstance(listres, Result))
        self.assertTrue(mylist[0] == 4)
        self.assertTrue(isinstance(mylist, list))

        mytuple = traj.mytuple

        with self.assertRaises(AttributeError):
            mytuple = make_shared_result(mytuple, 'mylist', traj, new_class=SharedArray)

        mytuple = make_shared_result(mytuple, 'k', traj, new_class=SharedArray)
        self.assertTrue(mytuple.k[1] == 2)

        mytuple = make_ordinary_result(mytuple, 'k', trajectory=traj)
        self.assertTrue(isinstance(mytuple.k, tuple))
        self.assertTrue(mytuple.k[2] == 3)

        myframe = traj.myframe
        myframe = make_shared_result(myframe, 'data', traj)

        theframe = myframe.data.read()
        self.assertTrue(theframe['answer'][0] == 42)

        myframe = make_ordinary_result(myframe, 'data', trajectory=traj)
        traj.f_load_item(myframe)
        self.assertTrue(myframe.data['answer'][0] == 42)

        mytable = traj.f_get('mytable')
        mytable = make_shared_result(mytable, 0, traj)

        self.assertTrue(isinstance(mytable[0], SharedTable))
        rows = mytable.mytable.read()

        self.assertTrue(rows[0][0] == 42)

        mytable = make_ordinary_result(mytable, 0, trajectory=traj)

        self.assertTrue(isinstance(mytable, Result))
        self.assertTrue(mytable[0]['answer'][0] == 42)