| import os |
| import socket |
| import sys |
| import threading |
| import time |
| import traceback |
| import urlparse |
| import uuid |
| |
| from .base import (ExecutorException, |
| Protocol, |
| RefTestExecutor, |
| RefTestImplementation, |
| TestExecutor, |
| TestharnessExecutor, |
| testharness_result_converter, |
| reftest_result_converter, |
| strip_server) |
| from ..testrunner import Stop |
| |
| here = os.path.join(os.path.split(__file__)[0]) |
| |
| webdriver = None |
| exceptions = None |
| RemoteConnection = None |
| |
| extra_timeout = 5 |
| |
| def do_delayed_imports(): |
| global webdriver |
| global exceptions |
| global RemoteConnection |
| from selenium import webdriver |
| from selenium.common import exceptions |
| from selenium.webdriver.remote.remote_connection import RemoteConnection |
| |
| class SeleniumProtocol(Protocol): |
| def __init__(self, executor, browser, capabilities, **kwargs): |
| do_delayed_imports() |
| |
| Protocol.__init__(self, executor, browser) |
| self.capabilities = capabilities |
| self.url = browser.webdriver_url |
| self.webdriver = None |
| |
| def setup(self, runner): |
| """Connect to browser via Selenium's WebDriver implementation.""" |
| self.runner = runner |
| self.logger.debug("Connecting to Selenium on URL: %s" % self.url) |
| |
| session_started = False |
| try: |
| self.webdriver = webdriver.Remote(command_executor=RemoteConnection(self.url.strip("/"), |
| resolve_ip=False), |
| desired_capabilities=self.capabilities) |
| except: |
| self.logger.warning( |
| "Connecting to Selenium failed:\n%s" % traceback.format_exc()) |
| else: |
| self.logger.debug("Selenium session started") |
| session_started = True |
| |
| if not session_started: |
| self.logger.warning("Failed to connect to Selenium") |
| self.executor.runner.send_message("init_failed") |
| else: |
| try: |
| self.after_connect() |
| except: |
| print >> sys.stderr, traceback.format_exc() |
| self.logger.warning( |
| "Failed to connect to navigate initial page") |
| self.executor.runner.send_message("init_failed") |
| else: |
| self.executor.runner.send_message("init_succeeded") |
| |
| def teardown(self): |
| self.logger.debug("Hanging up on Selenium session") |
| try: |
| self.webdriver.quit() |
| except: |
| pass |
| del self.webdriver |
| |
| def is_alive(self): |
| try: |
| # Get a simple property over the connection |
| self.webdriver.current_window_handle |
| # TODO what exception? |
| except (socket.timeout, exceptions.ErrorInResponseException): |
| return False |
| return True |
| |
| def after_connect(self): |
| self.load_runner("http") |
| |
| def load_runner(self, protocol): |
| url = urlparse.urljoin(self.executor.server_url(protocol), |
| "/testharness_runner.html") |
| self.logger.debug("Loading %s" % url) |
| self.webdriver.get(url) |
| self.webdriver.execute_script("document.title = '%s'" % |
| threading.current_thread().name.replace("'", '"')) |
| |
| def wait(self): |
| while True: |
| try: |
| self.webdriver.execute_async_script(""); |
| except exceptions.TimeoutException: |
| pass |
| except (socket.timeout, exceptions.NoSuchWindowException, |
| exceptions.ErrorInResponseException, IOError): |
| break |
| except Exception as e: |
| self.logger.error(traceback.format_exc(e)) |
| break |
| |
| |
| class SeleniumRun(object): |
| def __init__(self, func, webdriver, url, timeout): |
| self.func = func |
| self.result = None |
| self.webdriver = webdriver |
| self.url = url |
| self.timeout = timeout |
| self.result_flag = threading.Event() |
| |
| def run(self): |
| timeout = self.timeout |
| |
| try: |
| self.webdriver.set_script_timeout((timeout + extra_timeout) * 1000) |
| except exceptions.ErrorInResponseException: |
| self.logger.error("Lost WebDriver connection") |
| return Stop |
| |
| executor = threading.Thread(target=self._run) |
| executor.start() |
| |
| flag = self.result_flag.wait(timeout + 2 * extra_timeout) |
| if self.result is None: |
| assert not flag |
| self.result = False, ("EXTERNAL-TIMEOUT", None) |
| |
| return self.result |
| |
| def _run(self): |
| try: |
| self.result = True, self.func(self.webdriver, self.url, self.timeout) |
| except exceptions.TimeoutException: |
| self.result = False, ("EXTERNAL-TIMEOUT", None) |
| except (socket.timeout, exceptions.ErrorInResponseException): |
| self.result = False, ("CRASH", None) |
| except Exception as e: |
| message = getattr(e, "message", "") |
| if message: |
| message += "\n" |
| message += traceback.format_exc(e) |
| self.result = False, ("ERROR", e) |
| finally: |
| self.result_flag.set() |
| |
| |
| class SeleniumTestharnessExecutor(TestharnessExecutor): |
| def __init__(self, browser, server_config, timeout_multiplier=1, |
| close_after_done=True, capabilities=None, debug_info=None, |
| **kwargs): |
| """Selenium-based executor for testharness.js tests""" |
| TestharnessExecutor.__init__(self, browser, server_config, |
| timeout_multiplier=timeout_multiplier, |
| debug_info=debug_info) |
| self.protocol = SeleniumProtocol(self, browser, capabilities) |
| with open(os.path.join(here, "testharness_webdriver.js")) as f: |
| self.script = f.read() |
| self.close_after_done = close_after_done |
| self.window_id = str(uuid.uuid4()) |
| |
| def is_alive(self): |
| return self.protocol.is_alive() |
| |
| def on_environment_change(self, new_environment): |
| if new_environment["protocol"] != self.last_environment["protocol"]: |
| self.protocol.load_runner(new_environment["protocol"]) |
| |
| def do_test(self, test): |
| url = self.test_url(test) |
| |
| success, data = SeleniumRun(self.do_testharness, |
| self.protocol.webdriver, |
| url, |
| test.timeout * self.timeout_multiplier).run() |
| |
| if success: |
| return self.convert_result(test, data) |
| |
| return (test.result_cls(*data), []) |
| |
| def do_testharness(self, webdriver, url, timeout): |
| return webdriver.execute_async_script( |
| self.script % {"abs_url": url, |
| "url": strip_server(url), |
| "window_id": self.window_id, |
| "timeout_multiplier": self.timeout_multiplier, |
| "timeout": timeout * 1000}) |
| |
| class SeleniumRefTestExecutor(RefTestExecutor): |
| def __init__(self, browser, server_config, timeout_multiplier=1, |
| screenshot_cache=None, close_after_done=True, |
| debug_info=None, capabilities=None, **kwargs): |
| """Selenium WebDriver-based executor for reftests""" |
| RefTestExecutor.__init__(self, |
| browser, |
| server_config, |
| screenshot_cache=screenshot_cache, |
| timeout_multiplier=timeout_multiplier, |
| debug_info=debug_info) |
| self.protocol = SeleniumProtocol(self, browser, |
| capabilities=capabilities) |
| self.implementation = RefTestImplementation(self) |
| self.close_after_done = close_after_done |
| self.has_window = False |
| |
| with open(os.path.join(here, "reftest.js")) as f: |
| self.script = f.read() |
| with open(os.path.join(here, "reftest-wait_webdriver.js")) as f: |
| self.wait_script = f.read() |
| |
| def is_alive(self): |
| return self.protocol.is_alive() |
| |
| def do_test(self, test): |
| self.logger.info("Test requires OS-level window focus") |
| |
| self.protocol.webdriver.set_window_size(600, 600) |
| |
| result = self.implementation.run_test(test) |
| |
| return self.convert_result(test, result) |
| |
| def screenshot(self, test, viewport_size, dpi): |
| # https://github.com/w3c/wptrunner/issues/166 |
| assert viewport_size is None |
| assert dpi is None |
| |
| return SeleniumRun(self._screenshot, |
| self.protocol.webdriver, |
| self.test_url(test), |
| test.timeout).run() |
| |
| def _screenshot(self, webdriver, url, timeout): |
| webdriver.get(url) |
| |
| webdriver.execute_async_script(self.wait_script) |
| |
| screenshot = webdriver.get_screenshot_as_base64() |
| |
| # strip off the data:img/png, part of the url |
| if screenshot.startswith("data:image/png;base64,"): |
| screenshot = screenshot.split(",", 1)[1] |
| |
| return screenshot |
