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#!/usr/bin/python
# Copyright (c) 2010 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import re
import types
import pyauto_functional # Must be imported before pyauto
import pyauto
class BrowserTest(pyauto.PyUITest):
"""TestCase for Browser info."""
def Debug(self):
"""Test method for experimentation.
This method will not run automatically.
"""
import pprint
pp = pprint.PrettyPrinter(indent=2)
while True:
raw_input('Hit <enter> to dump info.. ')
info = self.GetBrowserInfo()
pp.pprint(info)
def _GetUniqProcesses(self, total_tabs, renderer_processes):
""" Returns a count of uniq processes of opened tabs
Args:
total_tabs: opened tabs count
renderer_processes: opened renderers info data dictionary
"""
pid_list = []
for tab_index in range(total_tabs):
pid = renderer_processes[tab_index]['renderer_pid']
if pid not in pid_list:
pid_list.append(pid)
return len(pid_list)
def _VerifyUniqueRendererProcesses(self, browser_info):
"""Verify that each tab has a unique renderer process.
This cannot be used for large number of renderers since there actually is
a cap, depending on memory on the machine.
Args:
browser_info: browser info data dictionary as returned by GetBrowserInfo()
"""
seen_pids = {} # lookup table of PIDs we've seen
for window in browser_info['windows']:
for tab in window['tabs']:
renderer_pid = tab['renderer_pid']
self.assertEqual(types.IntType, type(renderer_pid))
# Verify unique renderer pid
self.assertFalse(renderer_pid in seen_pids, 'renderer pid not unique')
seen_pids[renderer_pid] = True
def testBasics(self):
"""Verify basic browser info at startup."""
url = self.GetFileURLForPath(os.path.join(self.DataDir(), 'title2.html'))
self.NavigateToURL(url)
info = self.GetBrowserInfo()
# Verify valid version string
version_string = info['properties']['ChromeVersion']
self.assertTrue(re.match('\d+\.\d+\.\d+.\.\d+', version_string))
# Verify browser process
self.assertEqual(types.IntType, type(info['browser_pid']))
self.assertEqual(1, len(info['windows'])) # one window
self.assertEqual(1, len(info['windows'][0]['tabs'])) # one tab
self.assertEqual(0, info['windows'][0]['selected_tab']) # 1st tab selected
self.assertEqual(url, info['windows'][0]['tabs'][0]['url'])
self.assertFalse(info['windows'][0]['fullscreen']) # not fullscreen
self._VerifyUniqueRendererProcesses(info)
def testProcessesForMultipleWindowsAndTabs(self):
"""Verify processes for multiple windows and tabs"""
url = self.GetFileURLForPath(os.path.join(self.DataDir(), 'title2.html'))
self.NavigateToURL(url)
for _ in range(2):
self.AppendTab(pyauto.GURL(url))
for windex in range(1, 3): # 2 new windows
self.OpenNewBrowserWindow(True)
self.NavigateToURL(url, windex, 0)
self.RunCommand(pyauto.IDC_NEW_INCOGNITO_WINDOW) # incognito window
self.NavigateToURL(url, 3, 0)
self._VerifyUniqueRendererProcesses(self.GetBrowserInfo())
def testWindowResize(self):
"""Verify window resizing and persistence after restart."""
def _VerifySize(x, y, width, height):
info = self.GetBrowserInfo()
self.assertEqual(x, info['windows'][0]['x'])
self.assertEqual(y, info['windows'][0]['y'])
self.assertEqual(width, info['windows'][0]['width'])
self.assertEqual(height, info['windows'][0]['height'])
self.SetWindowDimensions(x=20, y=40, width=600, height=300)
_VerifySize(20, 40, 600, 300)
self.RestartBrowser(clear_profile=False)
_VerifySize(20, 40, 600, 300)
def testCanLoadFlash(self):
"""Verify that we can play Flash.
We merely check that the flash process kicks in.
"""
flash_url = self.GetFileURLForPath(os.path.join(self.DataDir(),
'plugin', 'flash.swf'))
self.NavigateToURL(flash_url)
child_processes = self.GetBrowserInfo()['child_processes']
self.assertTrue([x for x in child_processes
if x['type'] == 'Plug-in' and x['name'] == 'Shockwave Flash'])
def _GetFlashProcessesInfo(self):
"""Get info about flash processes, if any."""
return [x for x in self.GetBrowserInfo()['child_processes']
if x['type'] == 'Plug-in' and x['name'] == 'Shockwave Flash']
def testSingleFlashPluginProcess(self):
"""Verify there's only one flash plugin process shared across all uses."""
flash_url = self.GetFileURLForPath(os.path.join(self.DataDir(),
'plugin', 'flash.swf'))
self.NavigateToURL(flash_url)
for _ in range(2):
self.AppendTab(pyauto.GURL(flash_url))
# Open flash in new window
self.OpenNewBrowserWindow(True)
self.NavigateToURL(flash_url, 1, 0)
# Open flash in new incognito window
self.RunCommand(pyauto.IDC_NEW_INCOGNITO_WINDOW)
self.NavigateToURL(flash_url, 1, 0)
# Verify there's only 1 flash process
self.assertEqual(1, len(self._GetFlashProcessesInfo()))
def testFlashLoadsAfterKill(self):
"""Verify that Flash process reloads after crashing (or being killed)."""
flash_url = self.GetFileURLForPath(os.path.join(self.DataDir(),
'plugin', 'flash.swf'))
self.NavigateToURL(flash_url)
flash_process_id1 = self._GetFlashProcessesInfo()[0]['pid']
self.Kill(flash_process_id1)
self.ReloadActiveTab()
flash_processes = self._GetFlashProcessesInfo()
self.assertEqual(1, len(flash_processes))
self.assertNotEqual(flash_process_id1, flash_processes[0]['pid'])
def testMaxProcess(self):
"""Verify that opening 100 tabs doesn't create 100 child processes"""
total_tabs = 100
test_url = self.GetFileURLForDataPath('english_page.html')
# Opening tabs
for tab_index in range(total_tabs - 1):
self.AppendTab(pyauto.GURL(test_url))
tabs = self.GetBrowserInfo()['windows'][0]['tabs']
# For the first time we have 2 tabs opened, so sending the tab_index as +2
unique_renderers = self._GetUniqProcesses(len(tabs), tabs)
# We verify that opening a new tab should not create a new process after
# Chrome reaches to a maximum process limit.
if len(tabs) > unique_renderers:
return
# In case if we create 100 processes for 100 tabs, then we are failing.
self.fail(msg='Got 100 renderer processes')
def testKillAndReloadRenderer(self):
"""Verify that reloading of renderer is possible,
after renderer is killed"""
test_url = self.GetFileURLForDataPath('english_page.html')
self.NavigateToURL(test_url)
pid1 = self.GetBrowserInfo()['windows'][0]['tabs'][0]['renderer_pid']
self.KillRendererProcess(pid1)
self.ReloadActiveTab()
pid2 = self.GetBrowserInfo()['windows'][0]['tabs'][0]['renderer_pid']
self.assertNotEqual(pid1, pid2)
if __name__ == '__main__':
pyauto_functional.Main()
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