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from __future__ import print_function
import logging
import os
import re
import time
import signal
import subprocess
import sys
import unittest
import pyatspi
import dogtail.tree
import tests
class UITestCase(unittest.TestCase):
"""
Common testcase bits shared for ui tests
"""
def setUp(self):
self.app = VMMDogtailApp(tests.utils.uri_test)
def tearDown(self):
self.app.stop()
class _FuzzyPredicate(dogtail.predicate.Predicate):
"""
Object dogtail/pyatspi want for node searching.
"""
def __init__(self, name=None, roleName=None, labeller_text=None):
self._name_pattern = re.compile(name or ".*")
self._role_pattern = re.compile(roleName or ".*")
self._labeller_text = bool(labeller_text)
self._labeller_pattern = re.compile(labeller_text or ".*")
def makeScriptMethodCall(self, isRecursive):
ignore = isRecursive
return
def makeScriptVariableName(self):
return
def describeSearchResult(self, node=None):
if not node:
return ""
return node_string(node)
def satisfiedByNode(self, node):
"""
The actual search routine
"""
try:
if not self._name_pattern.match(node.name):
return
if not self._role_pattern.match(node.roleName):
return
if self._labeller_text:
if not node.labeller:
return
if not self._labeller_pattern.match(node.labeller.text):
return
return True
except Exception as e:
print("got predicate exception: %s" % e)
def check_in_loop(func, timeout=2):
"""
Run the passed func in a loop every .1 seconds until timeout is hit or
the func returns True.
"""
start_time = time.time()
interval = 0.1
while True:
if func() is True:
return
if (time.time() - start_time) > timeout:
raise RuntimeError("Loop condition wasn't met")
time.sleep(interval)
class VMMDogtailNode(dogtail.tree.Node):
"""
Our extensions to the dogtail node wrapper class.
"""
# The class hackery means pylint can't figure this class out
# pylint: disable=no-member
@property
def active(self):
"""
If the window is the raised and active window or not
"""
return self.getState().contains(pyatspi.STATE_ACTIVE)
#########################
# Widget search helpers #
#########################
def find_pattern(self, name, roleName=None, labeller_text=None):
"""
Search root for any widget that contains the passed name/role regex
strings.
"""
pred = _FuzzyPredicate(name, roleName, labeller_text)
try:
ret = self.findChild(pred)
except dogtail.tree.SearchError:
raise dogtail.tree.SearchError("Didn't find widget with name='%s' "
"roleName='%s' labeller_text='%s'" %
(name, roleName, labeller_text))
# Wait for independent windows to become active in the window manager
# before we return them. This ensures the window is actually onscreen
# so it sidesteps a lot of race conditions
if ret.roleName in ["frame", "dialog", "alert"]:
check_in_loop(lambda: ret.active)
return ret
def find_fuzzy(self, name, roleName=None, labeller_text=None):
"""
Search root for any widget that contains the passed name/role strings.
"""
name_pattern = None
role_pattern = None
labeller_pattern = None
if name:
name_pattern = ".*%s.*" % name
if roleName:
role_pattern = ".*%s.*" % roleName
if labeller_text:
labeller_pattern = ".*%s.*" % labeller_text
return self.find_pattern(name_pattern, role_pattern, labeller_pattern)
#####################
# Debugging helpers #
#####################
def node_string(self):
msg = "name='%s' roleName='%s'" % (self.name, self.roleName)
if self.labeller:
msg += " labeller.text='%s'" % self.labeller.text
return msg
def print_nodes(root):
"""
Helper to print the entire node tree for the passed root. Useful
if to figure out the roleName for the object you are looking for
"""
def _walk(node):
try:
print(node.node_string())
except Exception as e:
print("got exception: %s" % e)
self.findChildren(_walk, isLambda=True)
def focused_nodes(self):
"""
Return a list of all focused nodes. Useful for debugging
"""
def _walk(node):
try:
if node.focused:
return node
except Exception as e:
print("got exception: %s" % e)
return self.findChildren(_walk, isLambda=True)
# This is the same hack dogtail uses to extend the Accessible class.
_bases = list(pyatspi.Accessibility.Accessible.__bases__)
_bases.insert(_bases.index(dogtail.tree.Node), VMMDogtailNode)
_bases.remove(dogtail.tree.Node)
pyatspi.Accessibility.Accessible.__bases__ = tuple(_bases)
class VMMDogtailApp(object):
"""
Wrapper class to simplify dogtail app handling
"""
def __init__(self, uri):
self._proc = None
self._root = None
self._topwin = None
self.uri = uri
@property
def root(self):
if self._root is None:
self.open()
return self._root
@property
def topwin(self):
if self._topwin is None:
self.open()
return self._topwin
def is_running(self):
return bool(self._proc and self._proc.poll() is None)
def open(self, extra_opts=None):
extra_opts = extra_opts or []
if tests.utils.get_debug():
stdout = sys.stdout
stderr = sys.stderr
extra_opts.append("--debug")
else:
stdout = open(os.devnull)
stderr = open(os.devnull)
cmd = [sys.executable]
if tests.utils.clistate.use_coverage:
cmd += ["-m", "coverage", "run", "--append"]
cmd += [os.path.join(os.getcwd(), "virt-manager"),
"--test-first-run", "--no-fork", "--connect", self.uri]
cmd += extra_opts
self._proc = subprocess.Popen(cmd, stdout=stdout, stderr=stderr)
self._root = dogtail.tree.root.application("virt-manager")
self._topwin = self._root.find_pattern(None, "(frame|dialog|alert)")
def stop(self):
"""
Try graceful process shutdown, then kill it
"""
if not self._proc:
return
try:
self._proc.send_signal(signal.SIGINT)
except Exception:
logging.debug("Error terminating process", exc_info=True)
return
# Wait for shutdown for 1 second, with 20 checks
for ignore in range(20):
time.sleep(.05)
if self._proc.poll() is not None:
return
logging.warning("App didn't exit gracefully from SIGINT. Killing...")
try:
self._proc.kill()
finally:
time.sleep(1)
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