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# Copyright (c) 2018 CEF Python, see the Authors file.
# All rights reserved. Licensed under BSD 3-clause license.
# Project website: https://github.com/cztomczak/cefpython
from cefpython3 import cefpython as cef
import base64
import os
import platform
import sys
import time
# Platforms
SYSTEM = platform.system().upper()
if SYSTEM == "DARWIN":
SYSTEM = "MAC"
WINDOWS = SYSTEM if SYSTEM == "WINDOWS" else False
LINUX = SYSTEM if SYSTEM == "LINUX" else False
MAC = SYSTEM if SYSTEM == "MAC" else False
# MessageLoopWork() performs one non-blocking iteration for applications that
# integrate CEF into an external message loop. Exercise that API until the
# expected browser work completes, without assuming a fixed iteration count.
MESSAGE_LOOP_TIMEOUT = 15.0
MESSAGE_LOOP_POLL_INTERVAL = 0.01
MAIN_BROWSER_ID = 1
POPUP_BROWSER_ID = 2
g_subtests_ran = 0
g_js_code_completed = False
g_on_load_end_callbacks = []
def subtest_message(message):
global g_subtests_ran
g_subtests_ran += 1
print(str(g_subtests_ran) + ". " + message)
sys.stdout.flush()
def show_test_summary(pyfile):
print("\nRan " + str(g_subtests_ran) + " sub-tests in "
+ os.path.basename(pyfile))
def run_message_loop_until(condition, timeout=MESSAGE_LOOP_TIMEOUT):
"""Exercise MessageLoopWork until condition succeeds or timeout elapses."""
deadline = time.monotonic() + timeout
while True:
# noinspection PyTypeChecker
cef.MessageLoopWork()
if condition():
return True
if time.monotonic() >= deadline:
return False
time.sleep(MESSAGE_LOOP_POLL_INTERVAL)
def do_message_loop_work(work_loops):
# noinspection PyTypeChecker
for i in range(work_loops):
cef.MessageLoopWork()
time.sleep(0.01)
def on_load_end(callback, *args):
global g_on_load_end_callbacks
g_on_load_end_callbacks.append([callback, args])
def js_code_completed():
"""Sometimes window.onload can execute before javascript bindings
are ready if the document loads very fast. When setting javascript
bindings it can take some time, because these bindings are sent
via IPC messaging to the Renderer process."""
global g_js_code_completed
assert not g_js_code_completed
g_js_code_completed = True
subtest_message("js_code_completed() ok")
def is_js_code_completed():
return g_js_code_completed
def check_auto_asserts(test_case, objects):
# Check if js code completed
test_case.assertTrue(g_js_code_completed)
# Automatic check of asserts in handlers and in external
for obj in objects:
test_for_True = False # Test whether asserts are working correctly
for key, value in obj.__dict__.items():
if key == "test_for_True":
test_for_True = value
continue
if "_True" in key:
test_case.assertTrue(value, "Check assert: " +
obj.__class__.__name__ + "." + key)
subtest_message(obj.__class__.__name__ + "." +
key.replace("_True", "") +
" ok")
elif "_False" in key:
test_case.assertFalse(value, "Check assert: " +
obj.__class__.__name__ + "." + key)
subtest_message(obj.__class__.__name__ + "." +
key.replace("_False", "") +
" ok")
if "test_for_True" in obj.__dict__.keys():
test_case.assertTrue(test_for_True)
class DisplayHandler(object):
def __init__(self, test_case):
self.test_case = test_case
# Asserts for True/False will be checked just before shutdown
self.test_for_True = True # Test whether asserts are working correctly
self.javascript_errors_False = False
self.OnConsoleMessage_True = False
def OnConsoleMessage(self, message, **_):
if "error" in message.lower() or "uncaught" in message.lower():
self.javascript_errors_False = True
raise Exception("Javascript error: " + message)
else:
# Check whether messages from javascript are coming
self.OnConsoleMessage_True = True
subtest_message(message)
def close_popup(global_handler, browser):
browser.CloseBrowser()
global_handler.PopupClosed_True = True
# Test developer tools popup
main_browser = cef.GetBrowserByIdentifier(MAIN_BROWSER_ID)
main_browser.ShowDevTools()
cef.PostDelayedTask(cef.TID_UI, 800, close_devtools, global_handler)
cef.PostDelayedTask(cef.TID_UI, 500, main_browser.SetFocus, True)
def close_devtools(global_handler):
main_browser = cef.GetBrowserByIdentifier(MAIN_BROWSER_ID)
if main_browser is None:
return
if not main_browser.HasDevTools():
# ShowDevTools() is asynchronous. Retry while the main test's bounded
# message loop is running instead of assuming 800 ms is always enough.
cef.PostDelayedTask(cef.TID_UI, 100, close_devtools, global_handler)
return
global_handler.HasDevTools_True = True
main_browser.CloseDevTools()
subtest_message("DevTools popup ok")
class GlobalHandler(object):
def __init__(self, test_case):
self.test_case = test_case
# Asserts for True/False will be checked just before shutdown
self.test_for_True = True # Test whether asserts are working correctly
self.OnAfterCreatedMain_True = False
if "main_test" in test_case.id():
self.OnAfterCreatedPopup_True = False
self.PopupClosed_True = False
self.HasDevTools_True = False
def _OnAfterCreated(self, browser, **_):
# For asserts that are checked automatically before shutdown its
# values should be set first, so that when other asserts fail
# (the ones called through the test_case member) they are reported
# correctly.
if not self.OnAfterCreatedMain_True:
# First call for main browser.
# browser.GetUrl() returns empty at this moment.
self.OnAfterCreatedMain_True = True
self.test_case.assertEqual(browser.GetIdentifier(),
MAIN_BROWSER_ID)
self.test_case.assertFalse(browser.IsPopup())
else:
# Second call for implicit popup browser opened via js.
# Should execute only for main test.
# Should not execute for DevTools window.
assert "main_test" in self.test_case.id()
assert not self.OnAfterCreatedPopup_True
self.OnAfterCreatedPopup_True = True
self.test_case.assertEqual(browser.GetIdentifier(),
POPUP_BROWSER_ID)
# browser.GetUrl() returns empty at this moment.
self.test_case.assertTrue(browser.IsPopup())
if WINDOWS:
cef.WindowUtils.SetTitle(browser, "Popup test")
# Close the popup browser after 250 ms
cef.PostDelayedTask(cef.TID_UI, 250, close_popup, self, browser)
class LoadHandler(object):
def __init__(self, test_case, datauri):
self.test_case = test_case
self.datauri = datauri
self.frame_source_visitor = None
# Asserts for True/False will be checked just before shutdown
self.test_for_True = True # Test whether asserts are working correctly
self.OnLoadStart_True = False
self.OnLoadEnd_True = False
self.FrameSourceVisitor_True = False
# self.OnLoadingStateChange_Start_True = False # FAILS
self.OnLoadingStateChange_End_True = False
def OnLoadStart(self, browser, frame, **_):
self.test_case.assertFalse(self.OnLoadStart_True)
self.OnLoadStart_True = True
self.test_case.assertEqual(browser.GetUrl(), frame.GetUrl())
self.test_case.assertEqual(browser.GetUrl(), self.datauri)
def OnLoadEnd(self, browser, frame, http_code, **_):
# OnLoadEnd should be called only once
self.test_case.assertFalse(self.OnLoadEnd_True)
self.OnLoadEnd_True = True
self.test_case.assertEqual(http_code, 200)
self.frame_source_visitor = FrameSourceVisitor(self, self.test_case)
frame.GetSource(self.frame_source_visitor)
browser.ExecuteJavascript("print('LoadHandler.OnLoadEnd() ok')")
subtest_message("Executing callbacks registered with on_load_end()")
global g_on_load_end_callbacks
for callback_data in g_on_load_end_callbacks:
callback_data[0](*callback_data[1])
del g_on_load_end_callbacks
def OnLoadingStateChange(self, browser, is_loading, can_go_back,
can_go_forward, **_):
if is_loading:
# TODO: this test fails, looks like OnLoadingStaetChange with
# is_loading=False is being called very fast, before
# OnLoadStart and before client handler is set by calling
# browser.SetClientHandler().
# SOLUTION: allow to set OnLoadingStateChange through
# SetGlobalClientCallback similarly to _OnAfterCreated().
# self.test_case.assertFalse(self.OnLoadingStateChange_Start_True)
# self.OnLoadingStateChange_Start_True = True
pass
else:
self.test_case.assertFalse(self.OnLoadingStateChange_End_True)
self.OnLoadingStateChange_End_True = True
self.test_case.assertEqual(browser.CanGoBack(), can_go_back)
self.test_case.assertEqual(browser.CanGoForward(), can_go_forward)
class FrameSourceVisitor(object):
"""Visitor for Frame.GetSource()."""
def __init__(self, load_handler, test_case):
self.load_handler = load_handler
self.test_case = test_case
def Visit(self, value):
self.test_case.assertFalse(self.load_handler.FrameSourceVisitor_True)
self.load_handler.FrameSourceVisitor_True = True
self.test_case.assertIn("747ef3e6011b6a61e6b3c6e54bdd2dee",
value)