Function test_browser_renderer_show

tests/test_io/test_renderers.py:219–270

(fig1, renderer)

# -------
@pytest.mark.parametrize("renderer", ["browser", "chrome", "chromium", "firefox"])
def test_browser_renderer_show(fig1, renderer):
    pio.renderers.default = renderer
    renderer_obj = pio.renderers[renderer]
    using = renderer_obj.using
    if not isinstance(renderer_obj.using, tuple):
        using = (using,)

    # Setup mocks
    mock_get = MagicMock(name="test get")
    mock_browser = MagicMock(name="test browser")
    mock_get.return_value = mock_browser

    request_responses = []

    def perform_request(url):
        request_responses.append(requests.get(url))

    def open_url(url, new=0, autoraise=True):
        print("open url")
        # Perform request in thread so that we don't block
        request_thread = threading.Thread(target=lambda: perform_request(url))
        request_thread.daemon = True
        request_thread.start()

    mock_browser.open.side_effect = open_url

    with mock.patch("webbrowser.get", mock_get):
        pio.show(fig1)

    # check get args
    mock_get.assert_any_call(using[0])

    # check open args
    mock_call_args = mock_browser.open.call_args
    mock_arg1 = mock_call_args[0][0]
    mock_arg1.startswith("http://127.0.0.1:")

    mock_kwargs = mock_call_args[1]
    assert mock_kwargs == dict(new=renderer_obj.new, autoraise=renderer_obj.autoraise)

    # Give request content a little time to show up
    tries = 0
    while tries < 5 and not request_responses:
        time.sleep(0.5)

    # Check request content
    assert len(request_responses) == 1
    response = request_responses[0]
    assert response.status_code == 200
    html = response.content.decode("utf8")
    assert_full_html(html)
    assert_offline(html)


# Validation