How to use from_impl method in Playwright Python

Best Python code snippet using playwright-python

generate_api.py

Source:generate_api.py

...150    if str(get_origin(value)) == "<class 'list'>":151        return ["mapping.from_impl_list(", ")"]152    if str(get_origin(value)) == "<class 'dict'>":153        return ["mapping.from_impl_dict(", ")"]154    return ["mapping.from_impl(", ")"]155header = """156# Copyright (c) Microsoft Corporation.157#158# Licensed under the Apache License, Version 2.0 (the "License");159# you may not use this file except in compliance with the License.160# You may obtain a copy of the License at161#162# http://www.apache.org/licenses/LICENSE-2.0163#164# Unless required by applicable law or agreed to in writing, software165# distributed under the License is distributed on an "AS IS" BASIS,166# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.167# See the License for the specific language governing permissions and168# limitations under the License....

test_converters.py

Source:test_converters.py

1from glom import Assign, glom, Iter, T2import numpy as np3import pandas as pd4import pytest5from friendly_data.converters import _source_type6from friendly_data.converters import from_df7from friendly_data.converters import from_dst8from friendly_data.converters import resolve_aliases9from friendly_data.converters import to_da10from friendly_data.converters import to_df11from friendly_data.converters import to_dst12from friendly_data.converters import to_mfdst13from friendly_data.converters import xr_metadata14from friendly_data.converters import xr_da15from friendly_data.dpkg import pkg_from_index, res_from_entry16from friendly_data.io import dwim_file17from .conftest import expected_schema, to_df_noalias18def test_source_type_heuristics():19    with pytest.raises(ValueError):20        _source_type("/path/to/non-existent-file.ext")21@pytest.mark.skip(reason="not sure how to test schema parsing")22def test_schema_parsing():23    pass24def test_pkg_to_df(rnd_pkg):25    for resource in rnd_pkg.resources:26        df = to_df(resource)  # test target, don't touch this27        from_impl = expected_schema(df, type_map={})28        # read from file; strings are read as `object`, remap to `string`29        raw = expected_schema(resource, type_map={"object": "string", "int64": "Int64"})30        # impl marks columns as timestamps based on the schema.  so remap31        # timestamp columns as datetime64[ns] as per the schema32        ts_cols = [33            field.name for field in resource.schema.fields if "datetime" in field.type34        ]35        raw.update((col, "datetime64[ns]") for col in ts_cols)36        assert from_impl == raw37        if not ts_cols:  # no timestamps, skip38            continue39        # resource w/ timestamps40        dtype_cmp = df[ts_cols].dtypes == np.dtype("datetime64[ns]")41        assert dtype_cmp.all(axis=None)42    # resource w/ a index43    resource = rnd_pkg.resources[0]44    field_names = [field.name for field in resource.schema.fields]45    glom(resource, Assign("schema.primaryKey", field_names[0]))46    df = to_df(resource)47    # compare columns48    assert list(df.columns) == field_names[1:]49    # check if the right column has been set as index50    assert df.index.name == resource.schema.fields[0].name51    # resource w/ a MultiIndex52    glom(resource, Assign("schema.primaryKey", field_names[:2]))53    df = to_df(resource)54    # compare columns55    assert list(df.columns) == field_names[2:]56    # check if the right column has been set as index57    assert df.index.names == field_names[:2]58    # resource w/ NA59    resource = rnd_pkg.resources[1]60    # set new NA value: "sit" from "Lorem ipsum dolor sit amet consectetur61    # adipiscing", TRE - 2nd column62    glom(resource, Assign("schema.missingValues", ["", "sit"]))63    df = to_df(resource)64    assert df.isna().any(axis=None)65    # unsupported resource type66    resource = rnd_pkg.resources[0]67    update = {68        "path": resource["path"].replace("csv", "txt"),69        "mediatype": resource["mediatype"].replace("csv", "plain"),70    }71    resource.update(update)72    with pytest.raises(ValueError, match="unsupported source.+"):  # default behaviour73        df = to_df(resource)74    assert to_df(resource, noexcept=True).empty  # suppress exceptions75def test_pkg_to_df_skip_rows(pkg_meta):76    _, pkg, __ = pkg_from_index(pkg_meta, "testing/files/skip_test/index.yaml")77    df = to_df(pkg["resources"][0])78    expected = ["UK", "Ireland", "France"]79    np.testing.assert_array_equal(df.columns, expected)80    assert isinstance(df.index, pd.DatetimeIndex)81def test_pkg_to_df_aliased_cols(pkg_w_alias):82    df = to_df(pkg_w_alias["resources"][1])83    assert "region" in df.index.names84    assert "flow_in" in df.columns85def test_resolve_aliases(pkg_w_alias):86    for res in pkg_w_alias.resources:87        _df, entry = to_df_noalias(res)88        df = resolve_aliases(_df, entry["alias"])89        assert "region" in df.index.names90        if "flow_in" in entry["path"]:91            assert "flow_in" in df.columns92def test_df_to_resource(tmp_path, pkg_w_alias):93    df = to_df(pkg_w_alias["resources"][1])94    res = from_df(df, basepath=tmp_path)95    fpath = f"{'_'.join(df.columns)}.csv"96    assert (tmp_path / fpath).exists()97    assert fpath == res["path"]98    df.columns = ["energy_in"]99    df.index.names = ["technology", "node", "unit"]100    alias = {"node": "region", "energy_in": "flow_in"}101    for r in (True, False):102        res = from_df(df, basepath=tmp_path, alias=alias, rename=r)103        res_alias = glom(104            res,105            (106                "schema.fields",107                Iter()108                .filter(lambda i: "alias" in i)109                .map(({1: "name", 2: "alias"}, T.values()))110                .all(),111                dict,112            ),113        )114        if r:115            assert not res_alias116        else:117            assert res_alias == alias118def test_xr_metadata(pkg_w_alias):119    # 1: alias, unit, 2: alias120    df1, df2 = [to_df(res) for res in pkg_w_alias.resources]121    df1_res, coords1, attrs1 = xr_metadata(df1)122    assert df1.index.names == df1_res.index.names123    assert set(df1.index.names) == set(coords1)124    assert attrs1 == {}125    df2_res, coords2, attrs2 = xr_metadata(df2)126    assert set(df2.index.names) - set(df2_res.index.names) == {"unit"}127    assert set(df2.index.names) - set(coords2) == {"unit"}128    assert set(attrs2) == {"unit"}129def test_xr_da(pkg_w_alias):130    # 1: alias, 2: alias, unit131    df1, df2 = [to_df(res) for res in pkg_w_alias.resources]132    df_aligned, coords, attrs = xr_metadata(df1)133    arr1 = xr_da(df_aligned, 0, coords=coords, attrs=attrs)134    arr2 = xr_da(df_aligned, df1.columns[0], coords=coords, attrs=attrs)135    assert arr1.equals(arr2)  # column specification136    assert list(arr1.coords) == df1.index.names137    arr = xr_da(df_aligned, 0, coords=coords, attrs=attrs)138    assert arr.attrs == {}139    df_aligned, coords, attrs = xr_metadata(df2)140    arr = xr_da(df_aligned, 0, coords=coords, attrs=attrs)141    assert set(df2.index.names) - set(arr.coords) == {"unit"}142    assert "unit" in arr.attrs143    df3 = df2.assign(foo=3)144    df_aligned, coords, attrs = xr_metadata(df3)145    arr1 = xr_da(df_aligned, 1, coords=coords, attrs=attrs)146    arr2 = xr_da(df_aligned, "foo", coords=coords, attrs=attrs)147    # assert arr1.name == arr2.name == "foo"148    arr1.data = arr2.data = np.where(np.isnan(arr1.data), 3, arr1.data)149    expected = np.full_like(arr1.data, 3)150    assert (arr1.data == expected).all() and (arr2.data == expected).all()151def test_to_da(pkg_w_alias):152    # alias, unit153    res = pkg_w_alias.resources[1]  # "unit" is excluded from dims154    assert len(to_da(res).dims) == glom(res, ("schema.primaryKey", len)) - 1155    res["path"] = res["path"] + ".bad"156    # wrapped in an array, cannot do `is None`157    assert to_da(res, noexcept=True).data == None  # noqa: E711158    # multicol159    entry = dwim_file("testing/files/xr/index.yaml")[0]160    res = res_from_entry(entry, "testing/files/xr")161    with pytest.raises(ValueError, match="only 1 column supported"):162        to_da(res)163def test_to_dst(pkg_w_alias):164    # alias, unit165    res = pkg_w_alias.resources[1]  # "unit" is excluded from dims166    assert len(to_dst(res).dims) == glom(res, ("schema.primaryKey", len)) - 1167    res["path"] = res["path"] + ".bad"168    assert not to_dst(res, noexcept=True).data_vars169    # multicol170    entry = dwim_file("testing/files/xr/index.yaml")[0]171    res = res_from_entry(entry, "testing/files/xr")172    assert len(to_dst(res).data_vars) == 2173def test_to_mfdst(pkg_w_alias):174    dst = to_mfdst(pkg_w_alias.resources)175    assert len(dst.data_vars) == 2176def test_dst_to_pkg(tmp_path, pkg_w_alias):177    dst = to_mfdst(pkg_w_alias.resources)178    resources = from_dst(dst, basepath=tmp_path)...

cb.py

Source:cb.py

...4647        for cb in cbs.callbacks:48            for key in _get_events(cb):49                cb_impl = getattr(cb, key)50                cb_spec = CallbackSpec.from_impl(cb_impl)5152                self._cb_map.setdefault(key, []).append(cb_spec)5354        self._required_args = {}55        for key, specs in self._cb_map.items():56            self._required_args[key] = {arg for spec in specs for arg in spec.required}5758    @property59    def events(self):60        return set(self._cb_map)6162    def dispatch(self, key, kwargs):63        missing = self._required_args.get(key, set()) - set(kwargs)64        if missing:65            raise RuntimeError(f"Missing arguments for event {key}: {missing}")6667        for cb in self._cb_map.get(key, []):68            cb.call(kwargs)697071class ConsistencyChecker:72    def __init__(self, cbs):73        self.events = {key for cb in cbs.callbacks for key in _get_events(cb)}74        self.optional_events = set(cbs.optional_events)7576        self._ev_types = {}77        self._stack = []78        self._called = set()7980        self._outer_ev = None8182        for cb in cbs.callbacks:83            for key in _get_events(cb):84                # pre-cache all known events85                self._get_ev_type(key)8687    def on_event(self, key):88        ev_type, ev = self._get_ev_type(key)89        exit_ev = self._modify_state(key, ev_type, ev)9091        try:92            self._check_first_event(key, ev_type, ev, exit_ev)93            self._check_reentrant(key, ev_type, ev, exit_ev)94            self._check_balancing(key, ev_type, ev, exit_ev)95            self._check_missing(key, ev_type, ev, exit_ev)9697        finally:98            self._reset_after_last(key, ev_type, ev, exit_ev)99100    def _get_ev_type(self, key):101        if key not in self._ev_types:102            self._ev_types[key] = self._extract_ev_type(key)103104        return self._ev_types[key]105106    @staticmethod107    def _extract_ev_type(key):108        assert key.startswith("on_")109110        if key.endswith("_start"):111            return EventType.start, key[len("on_") : -len("_start")]112113        elif key.endswith("_end"):114            return EventType.end, key[len("on_") : -len("_end")]115116        else:117            return EventType.event, key[len("on_") :]118119    def _modify_state(self, key, ev_type, ev):120        self._called.add(key)121122        if self._outer_ev is None and ev_type == EventType.start:123            self._outer_ev = ev124125        if ev_type is EventType.start:126            self._stack.append(ev)127            return None128129        elif ev_type is EventType.end:130            try:131                return self._stack.pop()132133            except IndexError:134                return None135136        else:137            return None138139    def _is_last_event(self, ev_type, ev):140        return ev_type is EventType.end and ev == self._outer_ev141142    def _reset_after_last(self, key, ev_type, ev, exit_ev):143        if not self._is_last_event(ev_type, ev):144            return145146        self._outer_ev = None147        self._called = set()148149    def _check_first_event(self, key, ev_type, ev, exit_ev):150        if self._outer_ev is None:151            raise RuntimeError(152                f"The first callback must be a start event 'on_*_start', got: {key}"153            )154155    def _check_reentrant(self, key, ev_type, ev, exit_ev):156        count_ev = sum(ev == e for e in self._stack)157        if self._stack.count(ev) >= 2:158            raise RuntimeError(f"Reentrant event {key}")159160    def _check_balancing(self, key, ev_type, ev, exit_ev):161        if ev_type is EventType.end and exit_ev != ev:162            raise RuntimeError(163                f"Unbalanced callback stack. Expected {exit_ev}, found {ev}"164            )165166    def _check_missing(self, key, ev_type, ev, exit_ev):167        if not self._is_last_event(ev_type, ev):168            return169170        missing = self.events - self._called - self.optional_events171        if missing:172            raise RuntimeError(f"Events not called: {missing}")173174175def _get_events(cb):176    events = []177178    for key in vars(type(cb)):179        if not key.startswith("on_"):180            continue181182        events += [key]183184    return events185186187class EventType(int, enum.Enum):188    start = enum.auto()189    end = enum.auto()190    event = enum.auto()191192193class CallbackSpec:194    @classmethod195    def from_impl(cls, cb_impl):196        cb_kwargs, cb_required = cls._get_cb_args(cb_impl)197        return CallbackSpec(cb_impl, cb_kwargs, cb_required)198199    def __init__(self, cb, kwargs, required):200        self.cb = cb201        self.kwargs = bool(kwargs)202        self.required = set(required)203204    def call(self, kwargs):205        missing = self.required - set(kwargs)206        if missing:207            raise RuntimeError(f"Missing callback arguments for {self.cb}: {missing}")208209        if self.kwargs:
...

wordle.py

Source:wordle.py

...68            WordleAction.DELETE_LETTER: self._handle_delete,69            WordleAction.SUBMIT_GUESS: self._handle_submit,70        }71    def on_player_added(self, player: wtypes.Player):72        self._players.append(models.Player.from_impl(player))73        self._emit(player.id, WordleEvent.LETTER_ADDED, self._current_guess)74        self._emit_all(WordleEvent.PLAYER_CHANGED, self._players)75    def on_player_removed(self, removed_player_id: wtypes.PlayerId):76        self._players = [77            player for player in self._players if player.id != removed_player_id78        ]79        self._emit_all(WordleEvent.PLAYER_CHANGED, self._players)80    def set_parameters(self, game_parameters: wtypes.GameParameters):81        self.params = game_parameters82        self.chosen_word = self._dictionary.generate(self.params.word_length)83    def process_action(84        self, player: wtypes.PlayerId, player_action: wtypes.PlayerAction85    ):86        wordle_action = WordleAction[player_action.action]...

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.