driver_finder_tests.py

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from pathlib import Path
from unittest import mock

import pytest

from selenium import webdriver
from selenium.common.exceptions import NoSuchDriverException
from selenium.webdriver.common.driver_finder import DriverFinder


def test_get_results_with_valid_path():
    options = webdriver.ChromeOptions()
    service = webdriver.ChromeService(executable_path="/valid/path/to/driver")

    with mock.patch.object(Path, "is_file", return_value=True):
        result = DriverFinder(service, options).get_driver_path()
    assert result == "/valid/path/to/driver"


def test_errors_with_invalid_path():
    options = webdriver.ChromeOptions()
    service = webdriver.ChromeService(executable_path="/invalid/path/to/driver")

    with mock.patch.object(Path, "is_file", return_value=False):
        with pytest.raises(NoSuchDriverException) as excinfo:
            DriverFinder(service, options).get_driver_path()
        assert "Unable to obtain driver for chrome; For documentation on this error" in str(excinfo.value)


def test_wraps_error_from_se_manager():
    options = webdriver.ChromeOptions()
    service = webdriver.ChromeService(executable_path="/valid/path/to/driver")

    lib_path = "selenium.webdriver.common.selenium_manager.SeleniumManager"
    with mock.patch(lib_path + ".binary_paths", side_effect=Exception("Error")):
        with pytest.raises(NoSuchDriverException):
            DriverFinder(service, options).get_driver_path()


def test_get_results_from_se_manager(monkeypatch):
    executable_path = "/invalid/path/to/driver"
    options = webdriver.ChromeOptions()
    service = webdriver.ChromeService(executable_path=executable_path)
    monkeypatch.setattr(Path, "is_file", lambda _: True)

    lib_path = "selenium.webdriver.common.selenium_manager.SeleniumManager"
    with mock.patch(lib_path + ".binary_paths", return_value=executable_path):
        path = DriverFinder(service, options).get_driver_path()
    assert path == executable_path